ORLD METEOROLOGICAL ORGANIZATION

VOL. VI NO. 2

request request upon upon

non-recording. non-recording. and and

ding ding cor re both both

raingauges, raingauges, syphon syphon

and and balance balance float, float, of of ypes ypes t All All

RAINGAUGES RAINGAUGES

distance. distance. a a at at speed speed wind wind

instantaneous instantaneous recording recording for for ments ments

instru­

electro-magnetic electro-magnetic on" on" ll i Pap "

including including . . anemometers of of ypes ypes t All All

ANEMOGRAPHS ANEMOGRAPHS

rheliographs. rheliographs. y P radiation. radiation. lar lar so of of

sity sity inten the the

measuring measuring for for truments truments

ins· ins· recording recording and and reading reading Direct Direct

SOLARIMETERS SOLARIMETERS

instruments. instruments. dew.point dew.point nd nd a

upper·air upper·air including including recorders, recorders, nd nd a

indicators indicators of of types types

All All charts. charts. ruled ruled

n n o humidity humidity air air of of recording recording Direct Direct

HYGROGRAPHS HYGROGRAPHS

answer answer permanent permanent a a provide provide

sitive. sitive.

sen· sen· outstandingly outstandingly ore ore nstruments nstruments i RICHARD RICHARD JULES JULES

These These hygrometers. hygrometers. and and rometers rometers ba

our our with with combined combined 'be 'be can can Which Which

OF OF INSTRUMENTS INSTRUMENTS THERMOGRAPHS THERMOGRAPHS

PRECISION PRECISION THE THE

y. y. Nav

French French the the in in equipment equipment Standard Standard

Service. Service. Meteorological Meteorological French French he he t

y y b years years 40 40 over over for for

adopted adopted ; ; rts rts cho cho

stations stations

meteorological meteorological

continous continous with with aneroids aneroids Recording Recording

BAROGRAPHS BAROGRAPHS

modern modern all all At At

Paix, Paix, Geneva, Geneva, Switzerland. Switzerland.

The The Secretariat Secretariat

of of the the

Organization Organization is is located located at at Campagne Campagne Rigot, Rigot, Avenue Avenue de de la la

THE THE SECRETARIAT SECRETARIAT

networks networks of of which which lie lie in in or or extend extend into into four four years. years.

Members Members

of of the the Organization Organization the the fields fields which which meet meet at at least least once once every every

(c) (c) Regional Regional

Associations Associations made made up up of of experts experts in in the the various various meteorological meteorological

(d) (d) Technical Technical meets meets Commissions Commissions at at least least once once composed composed annually annually of of ; ;

(b) (b) The The Executive Executive Committee, Committee,

which which

the the policies policies of of the the Organization. Organization.

years; years;

necessary necessary to to ensure ensure compliance compliance with with

which which

meets meets

at at least least once once every every four four of of the the world. world. They They meet meet as as often often as as

(a) (a) The The 'World 'World Meteorological Meteorological

Congress Congress one one of of the the six six meteorological meteorological Regions Regions

THE THE CONSTITUENT CONSTITUENT BODIES BODIES OF OF THE THE ORGANIZATION ORGANIZATION

Meteorological Meteorological Organization, Organization, Article Article 2. 2.

From From the the Convention Convention exchange exchange of of of of the the weather weather World World information information ; ;

maintenance maintenance

of of systems systems for for the the rapid rapid of of such such research research and and training." training."

(b) (b) To To

promote promote the the establishment establishment and and ordinating ordinating the the international international aspects aspects

meteorology meteorology ological ological and and services services to to assist assist ; ; in in co­

(e) (e) To To encourage encourage research research charged charged and and with with training training the the provision provision in in of of meteor­

maintenance maintenance of of meteorological meteorological ture, ture, and and other other centres centres human human activities activities ; ; and and

and and to to promote promote the the ology ology establishment establishment to to aviation, aviation, and and shipping, shipping, agricul­

observations observations related related (d) (d) To To further further to to meteorology meteorology the the application application of of meteor­

ical ical observations observations or or other other geophysical geophysical ations ations and and statistics statistics ; ;

stations stations

for for the the making making of of meteorolog­ the the uniform uniform publication publication of of observ­

in in

the the

establishment establishment

of of networks networks of of rological rological observations observations and and to to ensure ensure

"(a) "(a) To To

facilitate facilitate world-wide world-wide co-operation co-operation (c) (c) To To promote promote standardization standardization of of meteo­

THE THE PURPOSES PURPOSES OF OF THE THE WORLD WORLD METEOROLOGICAL METEOROLOGICAL ORGANIZATION ORGANIZATION

Dr. Dr. H. H.

SEBASTIAN SEBASTIAN

Deputy Deputy

Secretary-General: Secretary-General: J. J. Mr. Mr. R. R. RrvET RrvET Chief, Chief, Administrative Administrative Division: Division:

Secretary-General Secretary-General

:Mr. :Mr. D. D. A. A.

DAvms DAvms Chief, Chief, Technical Technical Division Division : : Dr. Dr. LANGLO LANGLO K. K.

SECRETARIAT SECRETARIAT

Synoptic Synoptic Meteorology Meteorology : : Prof. Prof. Dr. Dr. W. W. BLEEKER BLEEKER

Maritime Maritime Meteorology Meteorology : : Mr. Mr. H. H. THOMSEN THOMSEN Europe Europe (VI) (VI) : : Dr. Dr. A. A. NYBERG NYBERG

Mr. Mr. A. A. PERLAT PERLAT Dr. Dr. C. C. DEL DEL RosARIO RosARIO

Instruments Instruments and and Methods Methods of of Observation Observation : : South-West South-West Pacific Pacific (V) (V) : :

Climatology: Climatology:

Mr. Mr. R. R. G. G. VERYARD VERYARD Mr. Mr. A. A. THOMSON THOMSON

Bibliography Bibliography

and and Publications Publications : : Dr. Dr. M. M. M:EzrN M:EzrN North North

and and Central Central

America America (IV): (IV):

Agricultural.Meteorology Agricultural.Meteorology

J. J. J. J. : : Mr. Mr. BuRGOS BuRGOS South South America America (III) (III) : : Dr. Dr. R. R. V. V. GARcfA GARcfA

Aeronautical Aeronautical Meteorology: Meteorology: Mr. Mr. A. A. H. H.

NAGLE NAGLE Asia Asia (II) (II) : : Mr. Mr. S. S. BAsU BAsU

Aerology Aerology J. J. : :

Prof. Prof. Dr. Dr. V V AN AN MIEGHEM MIEGHEM Africa (I): (I): J. J. Mr. Mr. RAVET RAVET

TECHNICAL TECHNICAL COMMISSION COMMISSION PRESIDENTS PRESIDENTS REGIONAL REGIONAL ASSOCIATION ASSOCIATION PRESIDENTS PRESIDENTS

Mr. Mr. S. S. BASU BASU Mr. Mr. L. L. DE DE AzcARRAGA AzcARRAGA Prof. Prof. J. J. Dr. Dr.

LUGEON LUGEON

J. J.

Mr. Mr.

RAVET RAVET

Dr. Dr. A: A: NYBERG NYBERG Mr. Mr. M. M. F. F. TAHA TAHA

Prof. Prof. Dr. Dr. H. H. AMORIM AMORIM FERREIRA FERREIRA Dr. Dr. C. C. DEL DEL RoSARIO RoSARIO Sir Sir GRAHAM GRAHAM SuTTON SuTTON

Dr. Dr.

M. M. A. A. F. F. BARNETT BARNETT Mr. Mr. A. A. THOMSON THOMSON Mr. Mr. A. A. A. A. SoLoToUKHINE SoLoToUKHINE

Mr. Mr. A. A. VIAUT VIAUT

Dr. Dr. R. R. V. V. GARcfA GARcfA Dr. Dr. F. F. W. W. REICHELDERFER REICHELDERFER

EXECUTIVE EXECUTIVE COMMITTEE COMMITTEE

Second Second Vice-President Vice-President : : Prof. Prof. Dr. Dr. H. H. AMORIM AMORIM FERREIRA FERREIRA

First First Vice-President Vice-President : : Dr. Dr. M. M. A. A. F. F. BARNETT BARNETT

President President : : Mr. Mr. A. A. VIAUT VIAUT

OFFICERS OFFICERS OF OF THE THE WORLD WORLD METEOROLOGICAL METEOROLOGICAL ORGANIZATION ORGANIZATION

49 49

Organization. Organization. the the of of views views the the represent represent necessarily necessarily not not do do contributions contributions Signed Signed

Geneva. Geneva.

Paix, Paix, la la de de Avenue Avenue Rigot, Rigot, Campagne Campagne Organization, Organization, Meteorological Meteorological World World

Secretary-General, Secretary-General,

the the to to addressed addressed be be should should Bulletin Bulletin the the about about correspondence correspondence other other all all and and

francs) francs)

Swiss Swiss

(4 (4

subscriptions subscriptions Annual Annual postage. postage. including including copy, copy, per per franc franc Swiss Swiss r r is is price price The The

French. French.

and and

English English editions: editions: separate separate two two in in quarterly quarterly published published is is Bulletin Bulletin WMO WMO The The

activity. activity. human human to to

meteorology meteorology of of

application application the the with with concerned concerned others others and and Organization Organization the the of of Members Members to to

interest interest of of

meteorology meteorology international international in in developments developments of of and and Organization Organization Meteorological Meteorological

World World the the

of of work work the the

of of summary summary a a provide provide to to is is Bulletin Bulletin WMO WMO the the of of purpose purpose The The

90 90

......

events events

coming coming

of of Calendar Calendar Venezuela. Venezuela. in in district district semi-arid semi-arid a a shows shows

Lausanne, Lausanne, LiJJre, LiJJre, du du

Guilde Guilde

La La

of of

permission permission

88 88 ......

......

......

......

Reviews Reviews

by by reproduced reproduced cover, cover, the the on on picture picture The The

85 85

...... Secretariat Secretariat WMO WMO the the from from News News 62. 62. p. p. on on found found be be will will

meetings meetings these these o-£ o-£ recent recent most most the the on on

report report A A

84 84

...... Notes Notes

and and News News organized. organized. has has UNESCO UNESCO which which gatherings gatherings

scientific scientific

major major the the all all to to

representatives representatives

83 83 ...... WMO WMO

of of

Membership Membership

sent sent has has and and years years several several for for programme programme

its its

in in

UNESCO UNESCO

with with collaborating collaborating been been

82 82

......

Congress Congress

Geographical Geographical International International

has has WMO WMO programme. programme. research research this this in in bility bility

responsi­ great great a a

have have

meteorologists meteorologists that that

8~ 8~ ...... Commissions Commissions

Technical Technical

the the

of of

Activities Activities

follows follows it it solved, solved, be be to to problems problems basic basic the the of of

one one is is water water

of of

lack lack

the the As As importance. importance. 78 78 ...... Associations Associations Regional Regional of of Activities Activities

great great of of be be would would productivity productivity agricultural agricultural

their their in in increase increase 77 77 marginal marginal a a even even and and surface surface ...... ations ations

organiz- earth's earth's the the of of international international other other with with proportion proportion high high very very Collaboration Collaboration a a sent sent

repre­ lands lands arid arid The The Bulletin. Bulletin. the the of of issues issues

76 76

...... WMO WMO the the of of previous previous Members Members in in frequently frequently to to referred referred been been has has

which which (UNESCO), (UNESCO), Organization Organization

Cultural Cultural

73 73

......

WMO WMO

the the of of

Publications Publications and and Scientific Scientific Educational, Educational, Nations Nations United United

the the of of

Programme Programme Zone Zone

Arid Arid

the the of of

made made

70 70 ...... stations stations weather weather

automatic automatic

States States

United United

be be must must mention mention view, view, in in object object this this have have

which which

projects projects

international international the the Among Among

69 69 ...... atlases atlases Climatic Climatic

production. production. food food for for

65 65

......

Programme Programme

Assistance Assistance

Technical Technical unsuitable unsuitable present present at at is is which which land land vation vation

culti­ into into

bringing bringing of of and and land land

agricultural agricultural

62 62 ......

climatology climatology zone zone Arid Arid

existing existing of of productivity productivity the the increasing increasing

of of means means

and and

ways ways find find to to endeavouring endeavouring

59 59

......

Climatology Climatology

therefore therefore are are Scientists Scientists

feed. feed. to to

mouths mouths

for for

Commission Commission the the

of of

session session

Second Second

o-£ o-£ millions millions more more many many be be time time that that by by will will

there there

continues, continues,

increase increase

natural natural present present 56 56 ...... 1957-58 1957-58 Year Year Geophysical Geophysical

International International

the the if if that that clear clear so so quite quite is is it it hence, hence, years years

population population the the of of 53 53 • • . . I I estimate estimate precise precise Association Association a a make make Regional Regional of of session session Second Second

to to possible possible not not is is it it Although Although world. world. the the of of

50 50 energy energy population population atomic atomic of of aspects aspects ever-increasing ever-increasing the the feed feed to to Meteorological Meteorological how how is is

mankind mankind facing facing problems problems major major the the of of One One

Page Page

CONTENTS CONTENTS OF OF TABLE TABLE COVER COVER THE THE ON ON PICTURE PICTURE THE THE

2 2 NO. NO. VI VI VOL. VOL. 1957 1957 APRIL APRIL

ORGANIZATION ORGANIZATION METEOROLOGICAL METEOROLOGICAL WORLD WORLD

L L

I I

I I

50 50

in in th e e p eace ful ful u ses ses of of atomic atomic e n e rgy . . tw ee n n th e e ex i s ting ting specialized specialized agencies, agencies,

gro und und

of of i nt erna tion a l l co llaboration llaboration a a view view t o o ens urin g g co -ordination -ordination b e­

de scr ib e d d aga inst inst th e e genera l l back­ s ub- co mmitte e e on on atomic atomic energy energy with with

particular

, , the the activities activities of of WMO WMO are are tion s s as as c hairm a n , , had had esta bli s hed hed a a

the the

answe rs rs to to th ese ese questions questions an d, d, in in Secretary-General Secretary-General of of the the Unit e d d N a ­

provi

s ion a l l indic a s s tion are are g iven iven as as to to and and th e e specialized specialized agencies agencies with with th e e

Organization. Organization. In In this this article article some some ex ec utiv e e h ea d s s of of th e e United Nations

rend

e r e d d to to th e e Members Members of of th e e nation, nation, a a committee committee consisting consisting of of the the

e nsur e e th a t t th e e ma x imum imum ben efit efit i s s Administrative Administrative Co mmitt ee ee on on Co-ordi­

s

hould hould such such collaboration collaboration be be guided guided to to th e e work work of of this this co mmitt ee. ee. The The

be be

foster e d d and and in in what what dir ectio n s s m eteo rolo g ical ical f actors actors w e r e e involved involved in in

m e t e orological orological aspects aspects of of atomic atomic e nerg y y e n e r gy . . Ther e e were were indications indications that that

ca n n int e rn ati on a l l collaboration collaboration in in th e e r esu ltin g g from from th e e u ses ses of of atomic atomic

additional additional questions questions a rise rise as as to to how how function function of of advising advising on on possible possible danger s s

From From

th e e \iVMO \iVMO point point of of view, view, th e e e ff e cts cts of of atomic atomic r a diation, diation, with with th e e

of of s u ch ch knowl e dge dge in in oth e r r field li shed shed s . . a a sc i e ntific ntific co mmitt ee ee o n n th e e

m e t e orolog y y assist assist in in th a e pplication pplication The The United United Nations Nations h ad ad a l so so es tab­

met eo rolo gy gy it self self and and in in what what way way can can

thi s s con f e r e nc e. e. knowledge knowledge pass pass on on t o o th e e sc i ence ence of of

Met e orology orology did did n ot ot figur e e g r ea tl him y y s in in e lf lf what what b e nefit s s can can thi s s n ew ew

int e rnati ona l l co-o p era tion tion in in thi s s to to field. field. th e se se n e w w activities. activities. H e e as k s s

r egar d ed ed as as on e e of of th e e l a ndm a rk sc s s i ence ence in in of of meteorolog y y stand stand in in r e l a tion tion

wa s s a a g r ea t t s u ccess ccess and and mu naturall s b t e e y y arises arises as as to to wh e r e e do es es the the

le a ding ding ato mic mic physicists physicists in in th e e world, world, To To th e e met eo rolo g i s t, t, the the qu es tion tion

d e l ega t es es 1400 1400 including including most most of of th e e

Thi s s conferenc e, e, atte nded nded b y y a a total total of of tion s s in in this this fi e ld . .

United United Nations Nations in in Geneva Geneva in in 1955 . . of of futur e e d eve lopm e nt s s and and applica­

u ses ses of of ato mi c c energy energy h e ld ld by by present present th e e stage stage to to e nvisage nvisage the the full full scope scope

m

e d d the the conferenc e e on on the the p ea ceful ceful g iv e n n but but it it i s s quit e e impossible impossible at at th e e

r eco mm e ndations ndations of of which which had had ot s t h e m­ er er l ess ess obvio u s s exa mpl es es co uld uld b e e

mitt ee ee on on atomic atomic e nerg y , , from from a nd nd th almost almost e e e qu a ll y y well well known. known. Many Many

Un it e d d Ia tion s s of of a n n advisory advisory purposes purposes com­ are are a l so so of of great great sig nifi cance cance

included included the the es tabli s hm e nt nt by by trac th e r e e s s for for m e dical dical a nd nd ag ricultural ricultural

int e rn a ti ona l l field. field. S u c h h d e velopments velopments s uch uch ben e fits. fits. The The use use of of radioa c ti ve ve

m e nt s s which which h ad ad t aken aken place place in in the the th most most e e important important a nd nd well-known well-known of of

document document which which r eviewed eviewed the the d eve troll lop e ­ d d generat ion ion of of pow e r r i s s one one of of

t o o th e e co mmitt ee ee at at that that sess of of ion ion a t a a om i c c r e actor actor plants plants for for th e e co n­

r g56. g56. Th e e Secr e tary-G e n e ral ral submitted submitted b e n e fits fits to to the the whole whole world. world. Th e e u se se

mitt ee ee at at it s s e i g hth hth session session in in April April this this fi e ld ld can, can, if if rightly rightly us e d, d, bring bring vast vast

l i h s e b d y y th e e Vi T MO MO Ex ec utiv e e s Com­ cientific cientific a nd nd t ec hnolo g ical ical adva n ces ces in in

poli cy cy on on this this question question was was first first e stab­ the the threshold threshold of of a a n e w w era era in in which which

act iviti es es in in this this field field but but a a nized nized WMO WMO on on all all s id es es that that mankind mankind i s s on on

a s s part part of of th e ir ir r es pe ct ive ive nation e peac a l l ful ful purpos es es and and it it i s s well well r ec og­

m e teorological teorological as pect s s of of a tomic tomic e nergy nergy for for the the utili za tion tion of of atom i c c energy energy for for

seve r a l l yea rs rs g iv en en a ttention ttention to to has has th b e e ee n n the the d eve lopm

e nt nt of of technique s s

O

A A s m a ll ll numb e r r of of co untri es es have have for for human human activ iti es es in in r ece nt nt yea

rs rs

of of th e e most most s NE NE i gn ifi cant cant of of a ll ll I nter nter nahonal nahonal developments developments

METEOROLOGICAL METEOROLOGICAL

ASPECTS ASPECTS OF OF ATOMIC ATOMIC ENERGY ENERGY

WMO WMO B ull etin etin

Apri l l 1 9 57 57

51 51

upper upper the the on on rays rays cosmic cosmic of of action action the the * * zz(EC-VIII). zz(EC-VIII). Resolution Resolution

by by produced produced substances, substances, radioactive radioactive

natural natural of of use use the the and and absorption absorption America. America. of of States States United United

neutron neutron by by soil soil of of content content water water the the and and Kingdom Kingdom United United Republics, Republics,

the the of of measurement measurement the the included included panel panel Socialist Socialist Soviet Soviet of of Union Union France, France,

the the by by considered considered techniques techniques active active : : countries countries following following the the of of each each from from

radio­ of of applications applications possible possible Other Other expert expert one one of of consists consists panel panel This This

snow. snow. the the through through

matters. matters. relevant relevant urgent urgent

path path vertical vertical a a in in radiation radiation the the of of

any any on on Secretary-General Secretary-General the the advise advise to to

attenuation attenuation the the measuring measuring by by mined mined

requested requested also also was was panel panel The The izations. izations.

deter­ be be could could equivalent equivalent water water The The

organ­ international international other other and and WMO WMO

surface. surface. earth's earth's the the with with contact contact in in

of of Members Members by by required required assistance assistance

snow snow the the beneath beneath immediately immediately source source

and and help help all all giving giving to to view view a a with with

radioactive radioactive a a of of use use the the by by obtained obtained

and and instruments instruments new new of of development development

be be

could could snow snow deep-lying deep-lying of of alent alent

the the including including way way possible possible every every

equiv­ water water the the of of estimation estimation accurate accurate

in in meteorology meteorology of of science science the the assist assist to to

that that panel panel the the by by noted noted further further was was It It

used used be be may may activity activity of of field field this this from from

to. to. referred referred also also was was dew dew of of formation formation

arising arising techniques techniques new new that that ensuring ensuring

the the

study study to to water water with with association association

to to view view a a with with question question this this study study

in in tritium tritium radioactive radioactive using using of of bilities bilities

to to energy energy atomic atomic on on experts experts four four of of

possi­ The The possible. possible. were were cycle cycle logic logic

panel panel a a established established also also resolution resolution The The

hydro­ the the to to applications applications important important

energy". energy". atomic atomic uses of of uses peaceful peaceful the the

that that so so water water of of molecules molecules mark mark

of of aspects aspects meteorological meteorological the the on on WMO WMO

to to

used used be be could could tritium tritium dioactive dioactive

of of Members Members and and organizations organizations tional tional

Ra­ hydrology. hydrology. in in tracers tracers radioactive radioactive

interna­ appropriate appropriate advising advising in in tions tions

of of use use the the was was panel panel the the by by to to red red

Na­ United United the the of of agency agency specialized specialized

refer­ development development possible possible Another Another

a a as as part part full full its its play play "shall "shall WMO WMO

that that established established was was it it resolution, resolution, this this physicists. physicists.

* * By By . . resolution resolution important important an an adopted adopted atomic atomic of of assistance assistance the the require require clearly clearly

and and energy energy atomic atomic of of aspects aspects ical ical would would meteorologists meteorologists the the experiments experiments

meteorolog­ the the in in role role future future WMO's WMO's such such In In stressed. stressed. was was tracers tracers suitable suitable

considered considered Committee Committee Executive Executive the the of of selection selection the the in in and and experiments experiments

sphere, sphere, international international the the in in activity activity such such any any of of planning planning careful careful for for need need

vigorous vigorous of of background background this this Against Against The The measured. measured. diffusion diffusion atmospheric_ atmospheric_

and and traced traced be be could could currents currents air air way way

policy policy WMO WMO this this In In atmosphere. atmosphere. the the into into tificially tificially

ar­ introduced introduced substances substances radioactive radioactive

of of use use the the by by motions motions atmospheric atmospheric

agency. agency. energy energy atomic atomic international international · · of of studies studies to to made made was was reference reference

new new proposed proposed a a of of statute statute the the discuss discuss special special and and information information teorological teorological

to to Nations Nations United United the the of of Members Members me­ valuable valuable obtain obtain to to used used be be could could

of of conference conference a a convene convene to to decision decision tracers tracers radioactive radioactive harmless harmless which which

the the was was time time that that at at development development in in ways ways to to attention attention drew drew panel panel The The

important important most most the the perhaps perhaps But But made. made. were were recommendations recommendations and and sions sions

deci­ important important many many which which at at rg56, rg56,

activity. activity. of of spheres spheres respective respective December December in in Secretariat Secretariat WMO WMO the the in in

their their to to techniques techniques energy energy atomic atomic meeting meeting a a held held panel panel the the respondence, respondence,

of of application application the the to to relating relating projects projects cor­ by by ideas ideas of of exchange exchange an an After After

on on engaged engaged already already were were UNESCO) UNESCO)

panel panel of of meeting meeting First First and and FAO FAO WHO, WHO, (e.g. (e.g. whom whom of of some some

1957 1957 April April Bulletin Bulletin WMO WMO

52 52

were were

given. given. circulated circulated to to th e e memb e rs rs of of th e e

radioactivity radioactivity

from from aircraft aircraft and and ships ships Th e e r e port port of of the the p ane h l as as be e n n

out out and and comments comments on on measurem e nts nts of of

aspects aspects of of

atomic atomic

ene rg y . . stations stations of of radioactivity radioactivity was was pointed pointed

bibliography bibliography

on on th e e m e teorological teorological m e t eo rolo g ical ical stations stations as as observing observing

plans plans

for for

maintaining maintaining

an an up-to-dat e e Th e e advantages advantages of of using using exis tin g g l a nd nd

this this

subject. subject.

Th e e panel panel also also mad e e tion tion amounts, amounts, t ypes ypes and and inten s ities. ities.

all all Members Members

an

d d others others inter es ted ted in in knowl e dg e e of of distribution distribution of of precipita­

pl

e t

e d d

th

e e not e e will will be be circulated circulated to to was was drawn drawn to to th e e m eteo rologists' rologists'

is is

at at

pr ese

nt nt in in h a nd nd and and when when com­ radioactivity radioactivity was was not e d d and and attention attention

took took

to to pr

e par

e e such such a a note. note. This This work work to to obtain obtain m eas ur e ment s s of of atmospheric atmospheric

M e mbers mbers

of of

WMO WMO and and th e e panel panel under­ of of r a dioactivity dioactivity of of rainfall rainfall were were utilized utilized

atomic atomic

ene

rgy

, ,

would would

be be of of u se se to to th e e stressed. stressed. The The f act act that that m eas ur eme nts nts

applications applications

of of

th e e pea cef ul ul uses uses of of instruments instruments are are suitably suitably exposed exposed was was

which which

would would

arise arise in in the the different different rienc e e of of m e teorologi sts sts in in ensuring ensuring that that

pos s ibl

e e

the the

m e teorologi

ca l l prob l ems ems In In thes e e principl es es the the long long ex p e ­

technical technical not e e tr ea ting ting as as fully fully as as

this this connexion connexion th e e pan e l l felt felt that that a a be be us e d. d.

re

act

or or plants plants was was

of of importance. importance. In In would would be be made made and and th e e equipment equipment to to

log y y

to to

the the

siting siting

an d d operation operation of of stations stations at at which which such such m eas ur eme nt s s

conditions, conditions,

the the application application of of meteoro­ ge n e r a l l arrangements arrangements for for n e tworks tworks of of

would would

b e e dependent dependent

on on meteorological meteorological principles principles which which should should govern govern th e e

effluents effluents

or or through through

accidental accidental causes causes ingly ingly laid laid down down in in some some d e tail tail some some

ph

e r e e

by by

reactor reactor plants plants either either as as such such measurem e nts. nts. The The panel panel accord­

substances substances

r e l ease

d d into into the the atmos­ co nsid e ration ration in in all all techniqu es es for for

fact fact

that that

movement movement of of radioactive radioactive logical logical factors factors must must be be given given due due

pan

e

l l also also

not

e

d d that that in in view view of of the the tion. tion. was was It It pointed pointed out out that that m e t eo ro­

r

efe

r e nce nce has has

already already be e n n mad e. e. The The Scientific Scientific Committee Committee on on Atomic Atomic Radia­

of of

atmospheric atmospheric

radio

ac tivity tivity to to which which bodies bodies such such as as the the United United Nations Nations

mitt

ee ee on on

Radi

a tion tion for for m eas ur e ments ments above, above, but but also also for for th e e work work of of other other

requirements requirements

of of th e e Scientific Scientific Com­ purposes purposes such such as as have have been been mentioned mentioned

energy energy

probl

e ms, ms, the the pan e l l noted noted the the ex p eri m e nts nts for for purely purely m e teorological teorological

m e t eo

rological rological

knowledge knowledge to to atomic atomic of of particular particular importance importance not not only only for for

In In

considering considering

th e e applications applications of of ment ment of of atmospheric atmospheric r ad ioactivity ioactivity was was

The The panel panel noted noted that that th e e m eas ure­ Preparation Preparation of of technical technical note note

Locat

ion ion of of stations stations

pr ev iousl y. y.

h e ld ld in in New New York York some some two two months months

in in Paris

in in

Jun e e 1957 . . tion tion of of a a form a l l statute statute at at a a conference conference

e

d d

at at

the the forthcoming forthcoming session session of of CAe CAe important important step step forward forward b y y th e e adop­

this this

subject subject will will acco rdingl y y b e e discuss­ of of the the me e tin g g of of th e e p ane l , , taken taken an an

Commission Commission

on on Aerology Aerology (CA e ) ) and and th e e creation creation of of whi c h h had , , at at th e e time time

was was more more ap propriat e e to to the the WMO WMO int e rnational rnational atomic atomic energy energy agency, agency,

task task

of of

formulating formulating precis e e proj e cts cts made made to to liaison liaison betw ee n n WMO WMO and and the the

The The

p a n el el f e lt, lt, howev e r , , that that the the achieved. achieved. Particul a r r e f ere nc e e was was

tiv e e suggestions suggestions as as to to how how this this could could be be

dioxid

e e in in the the atmosphere. atmosphere. energy energy and and made made a a numb e r r of of construc­

ulat

es es and and th e e incr ease ease of of carbon carbon whose whose work work li es es in in the the fi e ld ld of of atomic atomic

atmosphere, atmosphere, th e e r e mov a l l rate rate of of partic­ and and oth e r r international international organizations organizations

tions tions as as vertical vertical diffusion diffusion in in the the importance importance of of liaison liaison b e twe e n n WMO WMO

atmosphere, atmosphere,

to to

investigate investigate such such ques­ The The panel panel laid laid great great emphasis emphasis on on the the

WMO WMO Bulletin Bulletin

April April 1 957 957

53 53

local local and and insular insular national, national, Spanish Spanish forecasting. forecasting. weather weather of of

the the thanked thanked Ravet Ravet Mr. Mr. Finally, Finally, methods methods the the and and processes processes atmospheric atmospheric

of of

knowledge knowledge

improved improved

in in

erpart erpart unt co session. session. present present the the g g in z i organ in in

their their

have have

not not did did

they they f f i

value value Secretariat Secretariat the the with with y y l effective so so ated ated r

their their

lose lose

would would

management management

e e rlin ai ­ collabo having having for for WMO, WMO, with with Spain Spain

and and

industry industry

aircraft aircraft the the in in

ments ments of of representative representative permanent permanent Azcarraga, Azcarraga,

develop­

easing easing incr ever-

the the

that that out out de de Luis Luis Mr. Mr. to to particularly particularly and and

pointed pointed He He

world. world. the the

throughout throughout tices tices

Government, Government, Spanish Spanish the the to to grateful grateful

prac­

meteorological meteorological

of of

standardization standardization deeply deeply was was Organization Organization the the that that

the the

to to

contribution contribution

invaluable invaluable

WMO's WMO's stated stated also also Davies Davies Mr. Mr. 1955. 1955. August August

of of

and and

activities activities

human human

of of

branches branches in in duties duties present present s s hi up up taking taking until until

many many

in in

meteorology meteorology

of of

importance importance 1951 1951 April April in in Congress Congress First First by by creation creation

the the

of of

spoke spoke He He

Islands. Islands.

Canary Canary the the

its its from from ation ation i assoc the the of of president president

of of

Sector Sector

Aviation Aviation the the

of of

chief chief

Mata, Mata, as as serving serving of honour honour the the had had had had he he that that

Francisco Francisco

General General

Excellency Excellency

s s

Hi

by by

recalled recalled He He session. session. the the of of nd nd e the the by by

Government Government

Spanish Spanish

the the of of

behalf behalf

on on

resolved resolved be be would would difficulties difficulties and and ems ems l

welcomed welcomed

officially officially

were were

Delegates Delegates

prob­ ll ll a that that ensure ensure would would years years many many

for for meteorology meteorology in in existed existed had had which which

aboration aboration ll co international international of of spirit spirit dependencies. dependencies. and and Madagascar Madagascar of of

the the that that sure sure felt felt he he but but meeting meeting the the Service Service Meteorological Meteorological the the of of director director

before before agenda agenda important important and and long long the the Ravet, Ravet, Jacques Jacques Mr. Mr. of of presidency presidency the the

to to referred referred He He session. session. the the of of success success under under 1957 1957 January January 21 21 on on Palmas Palmas Las Las

the the for for Organization Organization the the of of wishes wishes at at Insular Insular Cabildo Cabildo the the of of Palace Palace the the

T best best the the expressed expressed then then Davies, Davies, Mr. Mr. in in opened opened (Africa) (Africa) I I Association Association

WMO, WMO, of of Secretary-General Secretary-General The The Regional Regional the the of of session session second second HE HE

ASSOCIATION ASSOCIATION REGIONAL REGIONAL OF OF SESSION SESSION SECOND SECOND

D. D. A. A. D. D. the the is is development development interesting interesting Another Another

. . conceived been been 58). 58). p. p. (see (see subject subject this this on on mendations mendations

have have y y hardl could could recently recently until until recom­ which which of of number number a a prepared prepared and and 1957 1957

techniques techniques of of application application the the by by greatly greatly January January in in Utrecht Utrecht in in met met (CSAGI) (CSAGI)

benefit benefit course course due due in in will will meteorology meteorology IGY IGY the the for for Committee Committee Special Special the the

of of science science the the that that so so l a clear clear seems seems It It of of group group working working A A Year. Year. physical physical

activity. activity. human human of of field field important important and and Geo­ International International the the of of programme programme

new new this this in in play play to to roles roles important important the the in in water water sea sea and and precipitation precipitation air, air,

have have WMO WMO and and meteorologists meteorologists the the of of that that radioactivity radioactivity of of measurements measurements

seen seen be be will will It It view. view. of of point point logical logical include include to to decision decision the the mentioned mentioned be be

meteoro­ the the from from y y rg ene atomic atomic of of may may es es us which which among among months, months, recent recent in in

peaceful peaceful the the regarding regarding position position present present place place taken taken also also have have meteorologists meteorologists

the the of of resume resume brief brief a a is is then then to to Such Such interest interest of of developments developments Other Other

organizations organizations other other of of Activities Activities

hand. hand. in in is is end end

that that to to action action and and conference conference this this in in

participate participate to to invited invited been been has has WMO WMO 1957. 1957. tember tember

1957. 1957. in in research research scientific scientific in in topes topes Sep­ in in Committee Committee Executive Executive the the of of

radio-iso­ on on conference conference international international meeting meeting next next the the at at reviewed reviewed be be ll ll wi

an an convene convene to to UNESCO UNESCO of of decision decision question question the the and and Committee Committee Executive Executive

1957 1957 April April Bulletin Bulletin WMO WMO

54 54

:ments :ments were were recommended recommended for for the the improve improve the the situation. situation.

tions tions

of of the the Members. Members.

Some Some improve­ level level with with airline airline operators operators in in

order order

to to

the the

economic economic

and and administrative administrative situa­ to to take take action action at at the the international international

land land

stations stations

should should pay pay due due regard regard to to to to find find out out whether whether or or not not it it is is necessary necessary

network network

of of

synoptic synoptic

observations observations from from international international routes routes are are to to be be compiled compiled

gates gates

felt felt that that

a a realistic realistic plan plan for for a a reports reports received received from from aircraft aircraft flying flying

were were

examined examined

in in

detail. detail. Many Many dele­ Statistics Statistics of of the the number number of of in-flight in-flight

·surface ·surface and and upper-air upper-air observations observations

The The networks networks of of stations stations making making 1200 1200 GMT. GMT.

per per day day should should make make one one

of of them them at at

·Observational ·Observational

networks networks

more more than than one one upper-air upper-air observation observation

ciation ciation decided decided that that stations stations making making

.arid .arid

zone zone problems. problems.

Geophysical Geophysical Year, Year, however, however, the the asso­

climatology climatology

and and related related matters, matters, and and 18oo 18oo GMT. GMT. During During the the International International

Africa) Africa)

to to study study

observational observational

networks, networks, south south of of that that latitude latitude at at o6oo o6oo and and

Mr. Mr. F. F.

Mendes Mendes

(Portuguese (Portuguese West West oooo oooo and and 1200 1200 GMT, GMT, and and stations stations

the the

other other

under under the the

chairmanship chairmanship of of Tropic Tropic of of Cancer Cancer should should observe observe at at

tions tions _and _and

maritime maritime

meteorology, meteorology, and and mended mended that that stations stations north north of of

the the

to to deal deal

with with codes, codes, telecommunica­ For For practical practical reasons, reasons, it it was was

recom­

J. J.

Mr. Mr. A. A.

King King (Union (Union

of of South South Africa) Africa) times times for for such such observations observations (seep. (seep. 81) 81)

.. ..

up, up,

one one under under

the the chairmanship chairmanship of of light light of of the the newly newly adopted adopted standard standard

Two Two working working

committees committees were were ·set ·set air air observations observations were were revised revised in in the the

The The recommended recommended hours hours for for upper­

week. week.

Unit Unit was was also also present present during during the the first first i? i? the the salient salient weather weather feature. feature.

The The chief chief

of of the the Technical Technical Assistance Assistance tropical tropical areas areas where where thundery thundery activity activity

Rubiato, Rubiato,

of of

the the Technical Technical Division. Division. synoptic synoptic

stations, stations, mainly mainly

in in those those

J. J.

Mr. Mr. R. R.

Rivet, Rivet,

assisted assisted J. J. byMr. byMr. M. M. to to lessen lessen the the requirements requirements for for surface surface

sion sion

by by the the

Deputy Deputy

Secretary-General, Secretary-General, of of these these stations stations it it might might be be possible possible

first first

few few

days days and and throughout throughout the the ses­ tioned tioned that that by by increasing increasing the the number number

by by the the

Secretary-General Secretary-General

during during the the stations stations was was laid laid down. down. was was It It men­

The The

WMO WMO

Secretariat Secretariat was was represented represented of of ground ground radar radar weather weather observing observing

who who took took

an an active active part part in in the the meeting. meeting. For For the the first first time time a a regional regional network network

national national organizations organizations sent sent observers observers

non-Member non-Member territory territory and and two two inter­ remedy remedy this this deficiency. deficiency.

Members Members

from from

outside outside the the Region, Region, one one and and Members Members concerned concerned were were urged urged to to

delegations. delegations.

In In addition, addition, four four WMO WMO tions tions from from oceanic oceanic regions regions was was stressed stressed

membership membership

of of 22, 22, were were represented represented by by The The need need for for more more upper-air upper-air observa­

Twenty Twenty Members, Members, out out of of a a total total

at at the the latest latest by by the the end end of of 1959· 1959·

Organization Organization

of of the the session session

air air navigation navigation should should be be established established

observations observations essential essential for for international international

of of the the meeting meeting

by by the the host host country. country. association. association. It It was was decided decided that that the the

staff staff

and and

services services -put -put at at the the disposal disposal and and report report to to the the president president of of the the

cially cially

the the impressive impressive facilities facilities - local local matter matter with with the the Members Members concerned concerned

for for the the

session. session. He He appreciated appreciated espe­ from from other other territories territories can can take take up up the the

effective effective

assistance assistance in in the the preparation preparation Members Members handicapped handicapped by by lack lack of of data data

words words

and and Mr. Mr. Davies Davies for for his his most most A A procedure procedure was was laid laid down down whereby whereby

Mr. Mr.

Mata Mata for for his his very very kind kind welcoming welcoming will will still still be be below below the the desirable desirable density. density.

erously erously

offered offered to to the the association, association, these, these, the the upper-air upper-air station station network network

authorities authorities for for the the

hospitality hospitality so so gen­ existing existing networks, networks, but but even even with with

WMO WMO Bulletin Bulletin

April April 1957 1957

55 55

preparation preparation

the the in in made made progress progress lent lent stations. stations. transmitting transmitting ·the ·the

excel­

The The Africa. Africa. for for Atlas Atlas Climatic Climatic with with associated associated services services meteorological meteorological

the the of of

preparation preparation the the and and practices practices the the to to sent sent be be will will reports reports these these

climatological climatological included included session session the the maintained; maintained; is is watch watch listening listening a a which which

at at

with with

dealt dealt items items other other many many The The for for broadcast broadcast each each of of reception reception the the on on

reports reports prepare prepare to to decided decided also also

was was It It

questions questions

Other Other

down. down. laid laid were were broadcasts broadcasts of of types types

various various the the of of contents contents and and

tions tions

level. level.

national national

func­ the the

of of

specifications specifications

Detailed Detailed

the the at at matters matters these these of of co-ordination co-ordination

the the and and data data of of publication publication the the tion, tion,

circuits. circuits.

calibra­ their their and and

instruments instruments

radiation radiation

teleprinter teleprinter by by

replaced replaced be be

should should

stations, stations, radiation radiation of of

classification classification

the the

broadcasts broadcasts

WjT WjT

that that

recommended recommended

concerning concerning taken taken were were

decisions decisions

portant portant

was was

It It group. group.

working working

competent competent the the

Im­ undertaking. undertaking.

regional regional a a

as as

world world

of of

meetings meetings

three three

the the

of of

mendations mendations

the the in in unique unique -

Bulletin Bulletin

Radiation Radiation

recom­

the the of of

light light the the in: in:

revised revised

was was

Quarterly Quarterly the the of of

publication publication

and and tion tion

Region Region the the in in

telecommunications telecommunications

ical ical

compila­ the the for for

responsibility responsibility

taking taking

meteorolog­ of of

system system

present present The The

in in Bureau Bureau Weather Weather African African South South

the the of of contribution contribution

invaluable invaluable the the

Transmissions Transmissions

of of appreciation appreciation great great its its recorded recorded and and

Radiation, Radiation, on on Group Group Working Working its its by by ed ed

decision. decision.

national national

to to left left

accomplish­ work work

excellent excellent

the the

mended mended

is is

section section

this this of of use use

the the ; ;

down down laid laid

corn­

association association

The The · ·

stations. stations.

130 130

were were level level

mb mb

the the

above above

500 500

pressures pressures

than than more more

of of present at at

consists consists

Africa Africa

at at

maxima maxima speed speed

wind wind

about about

tion tion in in stations stations radiation radiation of of

network network The The

informa­ supplying supplying for for used used be be to to tion tion

studies studies radiation radiation Solar Solar sec­ code code TEMP TEMP the the of of specifications specifications

and and form form The The upon. upon. agreed agreed was was them) them)

services. services. prediction prediction quency quency along along speeds speeds wind wind and and streamlines streamlines of of

fre­ existing existing of of use use the the and and stations stations transmission transmission (for (for code-form code-form VENTAL VENTAL

sounding sounding ionospheric ionospheric of of up up setting setting the the uniform uniform A A revised. revised. were were agreement agreement

level, level, noise noise of of recording recording the the equipment, equipment, regional regional to to subject subject are are which which codes codes

facsimile facsimile of of introduction introduction the the as as such such international international the the of of parts parts various various The The

questions questions telecommunications telecommunications other other of of

Codes Codes number number a a to to attention attention pay pay to to invited invited

were were association association the the of of Members Members

meteorology. meteorology. general general for for and and flights flights

only. only. traffic traffic logical logical high-speed high-speed and and high-level high-level for for needs needs

meteoro­ for for used used be be would would network network practical practical foreseeable foreseeable and and present present the the

this this of of

channel channel Multiplex Multiplex or or Diplex Diplex meeting meeting for for required required network network upper-air

a a

whereby whereby Network Network communication communication the the of of density density the the on on and and tropics, tropics,

Tele­ Fixed Fixed Aeronautical Aeronautical ICAO ICAO the the of of the the within within winds winds and and temperatures temperatures

advantage advantage taking taking of of possibility possibility the the gate gate upper-air upper-air forecasting forecasting for for techniques techniques

investi­ to to requested requested were were Members Members possible possible on on report report also also service will will service This This

years. years. three three last last the the during during recorded recorded

not. not. or or justified justified is is broadcasts broadcasts nental nental level, level, mb mb 6oo 6oo the the for for and and levels levels

conti­ of of establishment establishment the the whether whether pressure pressure standard standard the the of of each each for for

decided decided be be will will it it which which of of basis basis speed, speed, and and direction direction wind wind and and ature ature

the the on on Africa, Africa, for for data data meteorological meteorological temper­ of of daily values values daily the the of of analysis analysis

of of

exchange exchange inter-regional inter-regional for for need need the the an an with with entrusted entrusted was was Africa Africa South South of of

into into

conducted conducted be be will will inquiry inquiry An An Union Union the the of of Bureau Bureau Weather Weather The The

1957 1957

April April Bulletin Bulletin WMO WMO

56 56

r

egions egions

and and

as as this this view view was was generally generally th e e IGY IGY h as as be e n n don e e by by th e e Specia l l

than than

a a project project

limited limited to to the the polar polar vey. vey. Although Although the the ov e rall rall planning planning of of

would would

be be

of of

greater greater interest interest to to WMO WMO teorological teorological Programme Programme - G eneral eneral Sur ­

a a geophysical geophysical

yea r r for for th e e whole whole wor public ld ld a tion tion No. No. 55 · · IGY . . r, r, I GY GY Me­

was was

It It

point e d d out out at at th a t t tim e e that that a a concrete concrete progr a mm e e is is told told in in WMO WMO

then then

known known

as as the the Third Third Pol a r r Year. Year. id eas eas hav ubs s e eq u e ntl y y d eve lop e d d into into

pation pation

in in the the planning planning of of w hat hat was was The The s tor y y of of how how th ese ese first first n e bulous bulous

Organi za tion tion first first announced announced

its its partici­

N

since since

the the World World Meteoro l og i ca l l Int e rn a tion a G l eo ph ys i cal cal Y ea r. r.

six six yea EARLY EARLY r s s hav e e elapsed elapsed accepted accepted th e e proj ec t t was was r e -n a med med the the

THE THE

INTERNATIONAL INTERNATIONAL GEOPHYSICAL GEOPHYSICAL YEAR YEAR 1957-58 1957-58

d ec

isions. isions. J. J. M. M. R. R.

o n n action action t a ken ken b y y Members Members on on th ese ese

th

e e

finen ess ess

of of the the weather. weather. from from tim e e to to time time f ac t-finding t-finding surveys surveys

by by

th e e

b ea

ut y y of of the the

surroundings surroundings and and Genera l l was was r eq u es t e d d to to undertak e e

th

e e

Spanish Spanish

hospitality-

on l y y eq ualled ualled munication s . . To To this this e nd nd the the S ec retary­

appreciated appreciated

b

a y

ll ll p a rti c ipants, ipants, was was of of th e e d ec i s ions ions concerning concerning t e l eco m­

f ac tor, tor,

a

nd nd one one

which which

was was pa rti c ul arly arly recommend e d d observing observing n e tworks tworks a nd nd

of of

th

e e session

. .

Anoth e r r import a nt nt be be given given to to th e e impl e m e ntation ntation of of th e e

ic e, e, great

l y y

contributed contributed

to to the the success success futur e e programme programme first first priorit y y shou ld ld

Spanish Spanish

National National

Meteorological Meteorological Serv­ Th e e assoc iation iation de c id e d d th a t t in in its its

Mr. Mr. Font Font I. I. and and Mr. Mr. Maristan y y of of the the

gathering, gathering, und e r r th e e supervision supervision of of Future Future programme programme

Th e e exce ll e nt nt organization organization of of th e e

d e bate

s. s. m e nd a tion s s were were adopted. adopted.

mann

e r r in in

w hi

c h h

he he h a d d conducted conducted th e e In In all, all, 34 34 r eso lution s s and and ro ro r eco m­

to to the the pr

es

id

e nt nt

for for th e e firm firm and and tactful tactful of of th e e arid arid zones zones within within th e e R eg ion. ion.

D e

l ega

t es es

expresse d d th ei r r gra titude titude on on th e e h ydro m e t eo rolo gica l l problems problems

b e tt e r r co-ordination co-ordination of of r esea r c h h

wo

rk rk

d ent

. .

A A working working g roup roup was was se t t up up to to e n sure sure

lo

g i ca l l

Service, Service,

was was

e l ec t e d d vice-presi­ in gs gs for for ship pin g g were were a lso lso s tudi ed. ed.

of of th e e Portuguese Portuguese

East East Africa Africa Meteoro­ i ssu in g g of of weather weather forecasts forecasts a nd nd

warn­

J. J.

Mr. Mr.

B. B. Blanc Blanc

de de Portugal, Portugal,

dir ecto r r R eg ion. ion. Sh ip s' s' observations observations a nd nd th e e

d epe nd

enc

i es es was was

e le

cted cted pr es id e nt, nt, a nd nd agrome t eo rolo gical gical activ iti es es within within

th

e e

lo g i ca l l Service Service of of

Madagascar Madagascar

a nd nd prom o tion tion of of hydrometeorological hydrometeorological a nd nd

qu

es es R

ave

t, t,

dir

e ctor ctor

of of the the Meteoro ­ sa r y . . Attention Attention was was also also g i ven ven to to th e e

A t t th

e e

nd nd

of of th

e e session, session, Mr. Mr. J a c­ the the p ar t t of of the the assoc iati on on was was n eces­

was was d ec id e d d th a t t

no no furth

e r r ac tion tion on on Concl

usion usion

direction direction of of Dr. Dr. S. S. P. P. J J ackson ackson a nd nd it it

University University of of Witwatersrand Witwatersrand und er er th e e

Unit Unit of of African African C limat o lo gy gy of of th e e and and arid arid zo n e e studies. studies.

This This

proj ect ect is is

b e ing ing und e rtak e n b n y y th e e m ete orolog y, y, agricultura l l meteoro l ogy ogy

1 953 953

was was

n

oted oted

with with

much much satis facti o n . . t e l eco mmuni ca ti ons, ons, r a di at ion, ion, h yd ro­

the the

association association

at at it s s fir s t t sess ion ion in in in g g g roups roups to to cover cover th e e followin g g fields fields : :

of of

th e e atlas atlas

followin g a a g resolution resolution

of of Th e e association association es tablish ed ed fi ve ve work­

WMO WMO Bulletin Bulletin

April April 1957 1957

57 57

form form revised revised a a devise devise to to possible possible found found tailed tailed e d a a give give to to stage stage this this at at ible ible

was was it it Meteorology Meteorology Maritime Maritime pos­ for for be be sion sion not not would would it it and and course, course, due due

Commis­ e e th of of session session second second the the At At in in distributed distributed be be will will period period trial trial the the

machines. machines. tabulating tabulating ir ir e th of of from from rnt rnt ea l teristics teristics lessons lessons the the on on report report full full A A

charac­ the the suit suit to to versions versions forms. forms. e e th modified modified completing completing satisfactorily satisfactorily in in

own own ir ir e th prepare prepare to to invited invited were were untered untered enco difficulties difficulties e e th advance advance in in

cards cards punch punch from from eans eans m out out hanical hanical ec m finding finding by by of of opportunity opportunity an an services services

forms forms the the complete complete to to d d e plann giving giving in in which which valuable valuable equally equally been been has has

services services adopted, adopted, was was ship ship board board on on period period e e th that that n n show have have services services

made made observations observations meteorological meteorological e e th meteorological meteorological from from received received rs rs e lett

for for form form standard standard WMO WMO the the When When but but microcards, microcards, to to em em th transferring transferring

in in and and forms forms the the handling handling in in ence ence

vations vations obser Marine Marine

experi­ valuable valuable some some gain gain to to Centre Centre

Data Data Meteorological Meteorological the the enable enable to to was was

light. light. to to

period period trial trial the the of of object object primary primary e e Th

come come may may that that ts ts efec d any any rectifying rectifying

Secretariat. Secretariat. the the by by required required as as d d e pli

to to

view view a a with with

Secretariat Secretariat WMO WMO e e th

sup­ were were observations observations the the entering entering

in in

studied studied and and received received being being now now are are

for for forms forms ; ; IGY IGY the the for for period period trial trial

results results The The others. others. amongst amongst networks networks

a a as as I957 I957 January January ro ro to to 6 6 ntacle ntacle e p

lecommunications lecommunications e t l a meteorologic the the

the the observe observe to to Committee Committee Executive Executive

by by

world world e e th over over all all stations stations ing ing eceiv r

WMO WMO e e th by by requested requested were were world world

to to on on

ed ed pass

were were and and GMT, GMT, r6oo r6oo

the the of of services services meteorological meteorological The The

at at U.S.A., U.S.A., Virginia, Virginia, Belvoir, Belvoir, Fort Fort at at

period period l l j,a . r Agency Agency T T Warning Warning World World the the by by d d ssue i

were were es es messag warning warning test test daily daily

data. data. meteorological meteorological of of held, held, tion tion dy dy ea alr weeks weeks trial trial the the During During

collec­ valuable valuable most most a a inclusive. inclusive. I957 I957 with with May May workers workers to to January January from from

research research the the provide provide will will IGY IGY month month the the each each of of r6th r6th to to roth roth the the from from

that that believe believe to to n n easo r y y r eve is is e e r e weeks weeks th trial trial of of series series a a during during tested tested be be

period, period, trial trial IGY IGY the the during during made made should should tions tions warnings warnings these these minating minating e diss for for

observa­ the the containing containing Centre Centre Data Data arrangements arrangements the the that that session session fourth fourth

Meteorological Meteorological IGY IGY the the in in its its at at arriving arriving decided decided CSAGI CSAGI ntatives, ntatives, eprese r

now now are are which which forms forms e e th from from WMO WMO e e Judging Judging th of of suggestion suggestion the the At At works. works.

world. world. the the of of services services l l a net­ teorologic e m telecommunications telecommunications logical logical eoro t

e e th to to falls falls tion tion execu e e th me­ IGY IGY e e th the the including including means means various various by by

of of programme programme logical logical eoro met the the of of disseminated disseminated be be will will which which warnings warnings by by

case case e e th in in and and completed, completed, been been notice notice has it it short short at at announced announced e e b will will SWI) SWI)

until until successful successful considered considered e e b can can rvals, rvals, e ned, ned, Int World World Special Special (the (the which which

plan­ well well however however project, project, no no of of But But some some ys, ys, Da world world · on on concentrated concentrated

be be will will IGY IGY the the during during s s rvation obse

unions. unions. scientific scientific the the of of work work the the

to to

certain certain 57), 57),

p. p. No. No.

IV, IV, (Vol. (Vol.

Bulletin Bulletin 2, 2,

upport upport s s s it add add to to organization organization mental mental

the the

of of

e e issu

earlier earlier an an in in reported reported As As

-govern­ er int an an having having in in sciences sciences

warnings warnings ALERT ALERT geophysical geophysical other other e e th over over advantage advantage

big big a a has has Meteorology Meteorology world. world. the the

Ices. Ices. in in service service meteorological meteorological every every tically tically

serv­ participating participating the the of of cent cent per per 6o 6o prac­ of of co-operation co-operation the the nsuring nsuring e in in

over over from from received received n n ee b had had forms forms and and programme programme ical ical g rolo eo met the the ing ing

period period trial trial the the of of months months two two lop­ eve d within within in in both both WMO, WMO, by by played played part part

that that report report to to able able be be to to satisfactory satisfactory the the of of e e importanc the the about about doubt doubt no no

very very s s i light. light. It It to to brought brought be be been been can can have have there there I), I), (CSAG (CSAG Year Year ical ical ys ph

which which facts facts useful useful e e th all all of of account account Geo­ International International the the for for Committee Committee

1957 1957 l l Apri Bulletin Bulletin WMO WMO

58 58

of of recommendations recommendations

concerning concerning the the

geophysics. geophysics.

O. O.

M. M. A. A.

ghem. ghem.

The The

meeting meeting

adopted adopted

a a number number

stations stations

for for , , the the other other branches branches of of

represented represented J. J.

by by

Professor Professor

Van Van Mie­

for for the the publication publication of of similar similar lists lists of of

of of these these

measurements; measurements;

WMO WMO was was

is is understood understood that that CSAGI CSAGI is is

arranging arranging

26 26

January January

I957, I957,

to to discuss discuss the the

details details

published published by by the the WMO WMO Secretariat. Secretariat.

It It

Utrecht, Utrecht,

Netherlan9-s, Netherlan9-s,

from from 22 22 to to

in in the the IGY IGY programme programme have have now now been been

Group Group

on on

Nuclear Nuclear Radiation Radiation met met in in

of of meteorological meteorological stations stations participating participating

solid solid

particles. particles.

The The CSAGI CSAGI Working Working

As As

reported reported on on p. p. 87, 87, the the main main lists lists

tion tion of of the the air, air, of of precipitation precipitation and and of of

Lists Lists of of stations stations some some measurements measurements of of nuclear nuclear radia­

has has

recently recently

been been

extended extended

to to include include

probably probably be be held held in in

Paris Paris

in in

June June I957· I957·

of of the the Bulletin, Bulletin,

the the IGY IGY

programme programme

be be settled settled

at at

a a meeting meeting

which which

will will

As As reported reported

on on p. p.

32 32 in in

the the last last

issue issue

and and it it is is hoped hoped

that that

final final details details will will

Nuclear Nuclear radiation radiation

presentation presentation and and contents contents of of the the charts, charts,

ensuring ensuring a a reasonable reasonable

uniformity uniformity

in in

the the

(see (see Bulletin, Bulletin, Vol. Vol.

VI, VI,

No. No.

p. p. 33). 33).

I, I,

the the countries countries

concerned concerned

with with a a view view to to

group group of of the the

Commission Commission

for for

Aerology Aerology

spondence, spondence,

over over the the

past past

year year

between between

devised devised by by the the

competent competent

working working

have have taken taken

place, place,

mainly mainly by by

corre­

for for this this purpose purpose

have have

already already been been

the the northern northern

hemisphere. hemisphere.

Discussions Discussions

IGY IGY atmospherics atmospherics

observations. observations.

Forms Forms

the the equatorial equatorial

zone, zone, the the

southern southern

and and

also also be be charged charged

with with

collecting collecting

the the

These These charts charts

will will cover cover

respectively respectively

President President

of of WMO, WMO,

the the Centre Centre

will will

and and the the United United

States States of of

America. America.

In In accordance accordance

with with a a decision decision

of of the the

Germany, Germany, the the Union Union of of South South Africa Africa

Services Services of of immediate immediate the the Federal Federal future. future. Republic Republic of of

synoptic synoptic charts charts :final :final decisions decisions by by the the Meteorological Meteorological will will be be taken taken in in the the

will will be be the the observations observations preparation preparation and and of of it it a a is is series series anticipated anticipated of of that that

One One of of the the major major prepare prepare IGY IGY standard standard undertakings undertakings forms forms for for these these

tional tional

Association Association of of Meteorology Meteorology to to World World synoptic synoptic charts charts

diation diation Commissions Commissions of of the the Interna­

collaborating collaborating on on p. p. so. so. with with the the Ozone Ozone and and Ra­

tions. tions. The The Secretariat Secretariat radiation radiation has has since since should should been been turn turn to to the the article article

main main ozone ozone the the and and meteorological meteorological radiation radiation observa­ aspects aspects of of nuclear nuclear

the the collection collection wishing wishing and and publication publication to to obtain obtain a a of of general general the the picture picture of of

teorological teorological Data Data course course Centre Centre to to should should all all concerned. concerned. include include Readers Readers

that that the the programme programme decisions decisions of of will will the the be be IGY IGY promulgated promulgated Me­ in in due due

The The Executive Executive were were Committee Committee addressed addressed decided decided to to CSAGI CSAGI and and the the final final

The The recommendations recommendations of of the the group group vations vations

Ozone, Ozone, radiation radiation and and atmospherics atmospherics obser­ sulted sulted about about this this possibility. possibility.

glaciological glaciological experts experts should should be be con­

be be tabulated tabulated by by mechanical mechanical methods. methods. depths. depths. It It was was recommended recommended that that

IGY IGY marine marine meteorological meteorological data data will will samples samples taken taken from from glaciers glaciers at at different different

that that with with very very few few exceptions exceptions all all the the obtained obtained from from the the analysis analysis of of ice ice

out out

by by the the Secretariat, Secretariat, it it now now appears appears pre-atomic pre-atomic age age and and that that this this might might be be

results results

of of an an inquiry inquiry recently recently carried carried about about the the tritium tritium background background of of the the

by by some some other other service. service. From From the the interesting interesting to to obtain obtain some some information information

machines machines to to have have their their data data tabulated tabulated group group considered considered that that it it would would be be very very

ing ing for for services services not not possessing possessing such such tion tion about about counting counting techniques. techniques. The The

to to investigate investigate the the possibility possibility of of arrang­ samples, samples, and and the the exchange exchange of of informa­

tabulating tabulating machines machines and and it it decided decided was the the IGY, IGY, the the methods methods of of collecting collecting

which which could could be be

used used on on most most types types of of networks networks of of observation observation stations stations for for

WMO WMO Bulletin Bulletin

April April 1957 1957

59 59

items items a a nd age the the covered covered B B the the in in Committee Committee rest rest e int growing growing the the indicated indicated

. . practices and and rules rules ments, ments, e requir session) session) first first the the at at 23 23 with with compared compared

ations, ations, l egu r climatology, climatology, l l era n ge as as with with occasion occasion this this n n o 37 37 were were (there (there

ealt ealt d , secretary as as tariat) tariat) e Secr the the of of present present tes tes ega del official official of of er er numb d d e

Division Division hnical hnical ec T the the of of (chief (chief anglo anglo L increas­ the the that that rked rked a rem who who waite, waite, th

K. K. Dr. Dr. with with and and (Canada) (Canada) r r Boughne Thorn­ W. W. C. C. . . Dr , , l CC of of ident ident es pr the the

C. C. . . C Mr. Mr. y y d b d e l A, A, Committee Committee y. y. by by da ed ed ing ing n e op y y ll a form was was session session e e Th

open­ the the of of

afternoon afternoon

the the on on es es

mitte

oticed." oticed." unn relatively relatively goes goes

com­

working working

two two

into into

down down eak eak br

often often it it n n ee uns being being but but edifice, edifice, whole whole

to to e e l

ab

was was

on on i

sess

the the

and and

minimum minimum

the the o o t y y ilit stab gives gives and and es es rli e und "It "It

the the

to to

reduced reduced

were were

es es iti l

Forma

...... erg erg b ce i great great a a of of portion portion n n ee uns

session session the the of of ganization ganization the the Or ke ke li structure structure Nations Nations United United l l a tot

e e th to to was was es es i agenc zed zed li specia other other

opment. opment. l eve d urce urce eso r water water the the with with of of and and WMO WMO of of work work e e th view view

concerned concerned those those from from climatologist climatologist his his In In the the weather. weather. the the about about hing hing et om s

on on emands emands d the the of of importance importance do do to to growing growing was was it it business business whose whose people people

the the of of spoke spoke so so l a He He e. e. ilabl ava of of e e st st wer mid e e th in in ing ing e b at at ure ure eas pl his his

s s r yea past past the the for for ecords ecords r 000 000 e e expressing expressing 1 l ab by by li d d e e r u contin e e H 1957. 1957. uary uary

if if e e lik e e b would would ogy ogy l climato of of ce ce n Jan­ scie 14 14 on on Washington Washington in in opening opening its its

the the what what asking asking by by thinking thinking s s at at d ) ) l ea h (CC Climatology Climatology for for Commission Commission

photograph) photograph)

State State of of partment partment e D (U.S. (U.S.

. . President retiring retiring

A.), A.), . (U.S Thornthwaite Thornthwaite W. W. C. C.

Dr. Dr. and and ology ology limat C for for sion sion

Commis­ the the of of President President ed ed

ect­ l newly-e (left), (left), Kingdom) Kingdom)

(United (United Veryard Veryard . . G Mr. Mr. R. R.

many many set set He He Bureau. Bureau. Weather Weather U.S. U.S. the the of of session session second second e e th to to delegates delegates

the the of of chief chief er, er, rf e ld Reiche W. W. . . F Dr. Dr. ed ed t ee r g Affairs, Affairs, ions ions zat Organi national national

by by welcomed welcomed also also were were Delegates Delegates er­ Int for for State State of of Secretary Secretary Assistant Assistant

American American Wilcox, Wilcox, 0. 0. Francis Francis Mr. Mr. that that

z). z). . . p No. No. VI, VI, (Vol. (Vol. , , I Twain Twain Mark Mark from from quotation quotation enging enging ll cha

Bulletin Bulletin the the of of e e issu previous previous the the in in this this with with was was It It it." it." about about much much

published published was was address address presidential presidential the the very very does does r r eve one one no no weather, weather,

of of text text full full The The ogy. ogy. l climato of of the the science science about about talks talks everyone everyone "WHILE "WHILE

CLIMATOLOGY CLIMATOLOGY FOR FOR COMMISSION COMMISSION THE THE OF OF SESSION SESSION SECOND SECOND

1957 1957 April April Bulletin Bulletin WMO WMO

60 60

Guide Guide to to Climatological Climatological Practices, Practices, one one matic matic elements elements are are broadcast broadcast for for

number number of of draft draft chapters chapters for for the the certain certain monthly monthly mean mean values values of of cli­

The The commission commission had had before before it it a a The The present present arrangements arrangements whereby whereby

Guide Guide

CLIMAT CLIMAT messages messages

Meteorology. Meteorology.

of of the the Commission Commission terial terial for for for for the the Aeronautical Aeronautical Guide. Guide.

being being communicated communicated climatic climatic to to the the elements elements president president and and to to prepare prepare ma­

Regulations. Regulations. to to These These study study suggestions suggestions methods methods of of mapping mapping are are derived derived

tained tained in in Chapter Chapter established established of of the the to to examine examine Technical Technical 12 12 this this question, question,

maries maries for for aeronautical aeronautical the the air air purposes purposes column. column. con­ A A working working group group was was

amendments amendments ration ration to to the the and and material material the the total total on on vapour vapour sum­ content content of of

sion sion decided decided to to matic matic recommend recommend elements, elements, some some such such as as evapotranspi­

matological matological Summaries, Summaries, ing ing the the values values the the of of commis­ certain certain derived derived cli­

Working Working Group Group on on nationally nationally the the Form Form agreed agreed of of Cli­ methods methods of of determin­

Following Following item, item, some some a a proposals proposals need need was was felt felt of of to to the the develop develop inter­

Arising Arising from from the the discussion discussion of of this this

former former ones. ones.

definitions definitions are are not not so so stringent stringent as as the the importance. importance.

purposes purposes

was was

recommended. recommended.

The The new new suggested, suggested, most most of of them them being being of of minor minor

nary nary

stations stations

and and stations stations

for for specific specific ordination. ordination. A A few few amendments amendments

were were

classification classification

into into

principal principal

and and ordi­ excellent excellent piece piece of of selection selection and and co­

tions tions

was was not not

very very realistic, realistic,

and and a a new new the the view view that that the the report report constituted constituted

an an

into into

:first, :first, second second

and and third third order order sta­ the the whole whole the the commission commission expressed expressed

classification classification

of of climatological climatological

stations stations the the members members of of the the working working group. group.

On On

The The

commission commission

felt felt that that

the the present present facilitated facilitated by by the the presence presence of of most most of of

great great detail detail ; ; this this work work was was greatly greatly

were were also also

proposed. proposed.

for for these these maps maps were were examined examined

in in

be be

amended. amended. Several Several

new new regulations regulations atlases atlases and and the the specifications specifications laid laid down down

Guide Guide

(see (see below) below)

and and

that that some some should should for for inclusion inclusion in in national national and and regional regional

that that

others others

should should

be be transferred transferred to to the the Atlases Atlases (seep. (seep. 6g). 6g). The The maps maps proposed proposed

regulations regulations

should should

be be strengthened, strengthened, of of the the Working Working Group Group on on Climatic Climatic

suggested suggested

that that

some some

of of the the existing existing tee tee B B was was to to review review the the second second report report

WMO WMO

Technical Technical

Regulations. Regulations. was was It It One One of of the the major major tasks tasks of of Commit­

form form of of recommended recommended changes changes to to the the

received received its its :final :final Climatic Climatic expression expression atlases atlases in in the the

Much Much of of the the work work of of Committee Committee A A

Technical Technical Regulations Regulations working working group group as as required. required.

authorized authorized to to call call upon upon a a special special

plenary plenary meetings. meetings. of of the the president president of of CCl CCl who who was was

necessary necessary to to have have :five :five fairly fairly short short now now in in the the hands hands of of the the Secretariat Secretariat and and

these these two two committees committees and and it it was was only only Further Further work work on on this this publication publication is is

agenda agenda items items were were thrashed thrashed out out in in additional additional paragraphs paragraphs and· and· sections. sections.

With With very very few few exceptions, exceptions, all all the the committees committees led led to to the the drafting drafting of of

several several of of the the agenda agenda items items in in both both

Secretariat) Secretariat) as as secretary. secretary. edit edit these these chapters, chapters, the the discussions discussions on on

of of

the the Investigations Investigations Section Section of of the the the the time time available available at at the the session session to to

(U.S.A.) (U.S.A.)

with with Mr. Mr. 0. 0. M. M. Ashford Ashford (chief (chief p. p. g8). g8). Although Although it it was was not not possible possible in in

it it was was chaired chaired by by Dr. Dr. H. H. Landsberg Landsberg by by WMO WMO (see (see Bulletin, Bulletin, Vol. Vol. IV, IV, No. No. 3, 3,

on on research research

and and applied applied climatology climatology ; ; of of the the series series of of Guides Guides to to be be published published

WMO WMO Bulletin Bulletin

April April 1957 1957

61 61

secretariat. secretariat. K. K. HARE) HARE)

F. F. (Dr. (Dr. climatology climatology of of local local aspects aspects the the of of dynamic dynamic work work The The exemplary exemplary the the of of and and

BuDYKo) BuDYKo) M. M. I. I.

(Dr. (Dr. facilitiesprovided facilitiesprovided

interpreting interpreting

excellent excellent

earth earth the the of of surface surface the the of of

balance balance Heat Heat

the the of of made made being being mention mention special special

DEIJ) DEIJ)

L. L.

session, session, the the of of success success the the for for J. J. ponsible ponsible L. L. (Dr. (Dr. Netherlands Netherlands the the in in Evaporation Evaporation

res­ those those N. N. all all (Mr. (Mr. to to RosENAN) RosENAN) passed passed were were thanks thanks

climatology climatology

zone zone arid arid in in problems problems

Special Special of of Votes Votes commission. commission. the the to to

given given

E. E. LANDSBERG) LANDSBERG)

had had he he lead lead scientific scientific excellent excellent

the the

H. H. (Dr. (Dr. user user the the

for for data data

climatic climatic

Preparing Preparing

for for president president

retiring retiring the the to to paid paid was was }ACOBS) }ACOBS)

C. C. W. W. (Dr. (Dr. Tribute Tribute processing processing data data for for respectively. respectively. CCl CCl quirements quirements of of dent dent

re­

modern modern

with with

associated associated problems problems Some Some vice-presi­ and and president president elected elected were were

(Canada) (Canada) Boughner Boughner C.C. C.C. Mr. Mr. and and dom) dom)

sented: sented:

King­ (United (United Veryard Veryard

R.G. R.G.

Mr. Mr. ry, ry,

pre­

were were

papers papers

following following

the the

which which

J J anua­ 25 25 on on meeting, meeting, closing closing

the the At At

at at discussions discussions and and lectures lectures scientific scientific

to to devoted devoted were were afternoons afternoons Two Two

Conclusion Conclusion

meetings meetings Scientific Scientific

future. future. the the in in

purpose purpose this this for for made made be be should should sion sion

provi­ financial financial substantial substantial more more that that

messages. messages. TEMP TEMP

urging urging adopted adopted y y according! according! was was tion tion

CLIMAT CLIMAT

and and CLIMAT CLIMAT the the for for averages averages

recommenda­ A A inadequate. inadequate. were were ings ings

or or

normals normals

and and

values values mean mean ing ing

meet­ such such arranging arranging for for Congress Congress by by

comput­

of of

methods methods the the to to and and sorship, sorship,

provided provided funds funds the the that that and and meeting meeting a a

spon­

WMO WMO

under under Bureau Bureau Weather Weather

having having without without satisfactorily satisfactorily tasks tasks

U.S. U.S.

the the by by published published now now is is which which

their their out out carry carry to to groups groups working working the the

World, World, the the

for for Data Data Climatic Climatic Monthly Monthly

for for impossible impossible be be cases cases many many in in would would

in in data data the the

of of

accuracy accuracy and and pleteness pleteness

it it that that considered considered commission commission The The

corn-. corn-. the the ensuring ensuring for for arrangements arrangements

the the

to to

given given

also also was was Attention Attention

competency. competency. of of field field its its within within service service

advisory advisory an an provide provide to to upon upon called called

rainfall. rainfall. of of instead instead is is Climatology Climatology in in Methods Methods and and ments ments

reported reported be be

would would temperature temperature surface surface Require­ Statistical Statistical on on Group Group Working Working

sea­

whereby whereby

reports reports SHIP SHIP CLIMAT CLIMAT the the that that is is feature feature novel novel A A ments. ments.

in in

included included be be

to to data data the the in in change change ele­ climatic climatic derived derived ; ; practices practices ical ical

minor minor a a

proposed proposed also also commission commission climatolog­ to to guide guide croclimatology; croclimatology;

The The

regime. regime.

climatic climatic the the sideration sideration mi­ ; ; climatology climatology to to relating relating material material

con­ into into

taking taking associations, associations, regional regional guidance guidance and and Regulations Regulations Technical Technical

by by

out out carried carried

be be

should should stations stations ; ; classification classification climatic climatic ; ; climatology climatology in in

the the

of of selection selection

detailed detailed ; ; square square ro

methods methods and and requirements requirements statistical statistical 0 0

every every in in

one one

TEMP TEMP CLIMAT CLIMAT for for layout; layout; punch-card punch-card data; data; weather weather

and and square, square,

5° 5° every every

in in one one be be should should past past of of exchange exchange : : questions following following

stations stations

CLIMAT CLIMAT

for for network network basic basic the the with with deal deal to to groups groups working working

the the

that that

recommended recommended was was it it regions, regions, eight eight up up set set to to decided decided was was it it all, all, In In

climatic climatic all all of of representation representation adequate adequate

secure secure to to need need growing growing consequent consequent groups groups Working Working

the the and and forecasts, forecasts, period period extended extended

for for information information this this of of value value ing ing

elsewhere. elsewhere. or or series series Notes Notes increas­ the the of of view view In In examined. examined. fully fully

Technical Technical WMO WMO the the in in published published care­ were were messages messages TEMP TEMP T T CLIMA CLIMA

be be will will papers papers these these that that hoped hoped is is It It and and CLIMAT CLIMAT in in stations stations selected selected

1957 1957 April April Bulletin Bulletin WMO WMO

62 62

ance. ance.

The The revi

ew ew paper paper by by D eaco n, n, selected selected wavelength wavelength bands. bands.

with with

evaporation evaporation

and and

the the water water bal­ fiat fiat plate plate and and for for measurements measurements

within within

The The

next next

session session

was was

concerned concerned spherica l l co ll ec tor tor in in addition addition to to a a

discussed, discussed, including including the the need need for for a a

radiation radiation mea arid arid s ur zone zone eme nt nt climatology. climatology. r eq uir e d d was was

mal mal b e haviour haviour of of his his important important of of soi l s. s. background background The The type type of of paper paper on on

others others were were by by concerned concerned a a t y pically pically with with whimsical whimsical the the ther­ pr ese ntation ntation

heat heat from from priate priate ground ground atmosphere atmosphere to to air, air, for for whilst whilst the the symposium symposium

Pri est l ey d , man man ea lt lt did did with with much much the the to to transfer transfer encourage encourage of of an an appro­

probl e ms ms ; ; others, others, In In th e e including including introductor that that y y session session of of th e e chair ­

that that of of Albrecht Albrecht dealt dealt with with radiation radiation

The The re v iew iew

pap

e r r by by

Drummond Drummond

and and

sics sics ( l ed ed by by

Dr. Dr.

C.H.B . . Priestl

ey)

. .

was was considered considered

in in

th e e third third

session. session.

CSIRO CSIRO Division Division

of of Meteorological Meteorological

Ph y

­

Radiation Radiation

and and the the

thermal thermal

balance balance

Ashton Ashton and and W.J. W.J. Gibbs) Gibbs) and and from from th e e

logy logy (including (including WMO WMO observers observers

H.T. H.T.

stressed. stressed.

del eg ations ations

from from the the Bureau Bureau of of

Meteoro­

in in studies studies

of of the the

water water

balance balance was was

was was also also

well well repr es ented ented

by by strong strong

bility bility of of

cons id e r ation ation

of of

these these

factors factors

and and

Ramdas. Ramdas.

Australian Australian m

eteo rolo gy gy

ground-disturbed ground-disturbed

l ayer, ayer,

and and the the desira­

Fournier Fournier

d'Albe, d'Albe, Ganji, Ganji, Geiger, Geiger,

Naqvi Naqvi

pans, pans,

and and

wind wind

at at

the the top top of of the the

l ogica

l l

circles circles - Burgos, Burgos,

Eriksson, Eriksson,

lap se, se,

surface surface

temperature temperature

of of l akes akes a nd nd

whose whose

nam es es are are well well known known in in

m e teoro­

need need

for for the the measurement measurement

of of hydro­

while while

the the delegates delegates included included

many many

the the

preparation preparation

of of

climatic climatic

data. data. The The

the the

WMO WMO

Commission Commission for for

C l imatology, imatology,

bility bility

of of

the the month month as as

a a

time time

unit unit

in in

Dr. Dr.

C.W. C.W. Thornthwaite, Thornthwaite,

pr es

id e nt nt

of of

was was some some

comment comment

on on the the

unsuita­

Chairman Chairman

of of th e e symposium symposium

was was

the the m easurement easurement of of evaporation. evaporation. There There

to to be be the the b es t t availab l e e instruments instruments

for for

tralian tralian

Government. Government.

deficiencies, deficiencies, w e re re considered considered

by by many many

Organization Organization

(UNESCO) (UNESCO)

and and the the Aus­ Evaporation Evaporation pans, pans, in in spite spite of of

their their

Educational, Educational,

Scientific Scientific

and and Cultura l l session session was was particularly particularly animated. animated.

sponsored sponsored

by by the the

United United

Nations Nations particular particular inter es t. t. Discussion Discussion

in in this this

reference reference

to to microclimatology), microclimatology),

jointly jointly Hounam Hounam on on pan pan coefficients coefficients were were

of of

Arid Arid Zone Zone

Climatology Climatology

(with (with special special Philip Philip on on evaporation evaporation from from soil soil

and and

non-arid non-arid

setting setting

for for a a Symposium Symposium on on on on an an automatic automatic

evaporation evaporation

recorder, recorder,

from from I7 I7 zo zo

to to October October

rg56, rg56, the the rather rather particular particular aspects. aspects. Those Those by by Taylor Taylor

swept swept

by by occasional occasional

showers, showers, was, was, was was followed followed

by by papers papers dealing dealing with with

T

lush lush w

ith ith

spring spring

greenness greenness and and th e e fundam e ntal ntal aspects aspects of of the the problem, problem,

Australian Australian

HE HE

capital, capital, Canberra, Canberra, Priestley Priestley and and Swinbank, Swinbank, emphas i zing zing

ARID ARID ZONE ZONE CLIMATOLOGY CLIMATOLOGY

development development

in in recent recent years years a nd nd is is now now O.M.A. O.M.A.

of of climatology climatology has has shown shown a a remarkable remarkable

commissions, commissions,

namely namely

that that the the science science WMO WMO Commission Commission for for Climatology Climatology

! !

take take place place

during during

sessions sessions of of technical technical not not receive receive much much support support from from the the

informal informal

discussions discussions

which which invariably invariably statistical statistical aspects aspects of of meteorology meteorology will will

and and

in in the the

course course

of of the the very very important important climatology climatology merely merely deals deals with with the the

both both

during during

the the

official official gatherings gatherings Anybody Anybody suggesting suggesting in in future future that that

One One

theme theme

was was constantly constantly heard heard rea ching ching out out in in many many new new directions. directions.

WMO WMO Bulletin Bulletin

April April 1957 1957

63 63

fields. fields. r r e oth vid- indi e e th of of e e t a im ocl micr e e (th mate mate

many many in in est est r e int of of d d an work, work, zone zone arid arid Proprio-cli­ s. s. imal an domestic domestic and and

in in ance ance import e e rabl e id cons of of s s i which which man man of of microclimate microclimate with with concerned concerned

subject, subject, this this of of iew iew ev r thorough thorough was was a a which which six six ion ion sess opened opened Neilsen Neilsen

d d e nt ese pr Eriksson Eriksson d d an water water rain rain of of Schmidt­ by by er er p a p review review e e Th

chemistry chemistry nd nd a ng ng lti sa f f o n n o ti a r e id cons

a a to to d d e ot ev d was was t t eigh ion ion Sess

ants. ants. pl y y b utilization utilization s s it and and origin origin s s it to to

d d r ega r in in both both comment comment much much d d evoke

?" ?" y y tl significan also also fall fall ew ew d of of ect ect j sub e e Th ents. ents. ronm

rain­ affect affect to to e e l sib pos it it "Is "Is : : question question envi­ ro- c mi particular particular of of servations servations

the the to to r r answe an an om om r f r r a f ll ll sti are are ob­ dard dard stan of of ess ess n ve i at nt ese r ep non-r

we we that that indicated indicated hich hich w ll ll a f ain r of of the the on on ti and and crises, crises, climatic climatic r r suffe ay ay m e e lif

timula­ s l l artificia the the to to nces nces e r e ref nt nt a pl hours hours few few a a even even or or ays ays d ew ew f a a

e e th were were est est r e int Of Of . . ium of of sympos period period a a within within that that t t c fa the the e, e, tim

the the d d an ion ion sess e e th to to contributions contributions of of unit unit a a as as month month e e th of of y y lit abi it su un

notable notable were were on on tati vege y y b climate climate the the - past past e e th in in ssions ssions i comm l l ca ni

micro­ of of modification modification the the on on ger ger i ech­ e t G O O WM concerned concerned as as h that that ch ch mu

by by r r e p a p e e th nd nd a This This . . ces n e influ f f o ration ration e it e r a a was was e e r e th sessions sessions

l l artificia nd nd a natural natural and and climate climate these these In In control. control. st st u c lo rt rt ese d of of

micro­ of of s s nt e m e l e the the g g in ew i ev r , , r e pap aspects aspects meteorological meteorological some some ained ained pl ex

photograph) photograph) -Sun -Sun rald

e- H (i"Vlelbourne (i"Vlelbourne . . semi-arid

y y normall s s i y y untr co this this ; ; tour tour

y y stud the the of of e e m ti e e th at at

ura ura ild ild M near near y y ntr cou ed ed lood F

background background comprehensive comprehensive a a sented sented us us a Kr by by r r e pap e e Th . . ects ins and and

pre­ e e d'Alb r r e Fourni , , e roclimat c mi birds birds animals, animals, on on effects effects her her eat w with with

of of tion tion ca modifi on on seven seven ion ion sess In In dealt dealt which which r r e nheim e Bod of of that that by by

particularly particularly and and rs rs e pap rous rous e num by by

. . stressed was was man man and and animal animal on on effects effects d d e indicat y y clearl was was ecology ecology animal animal

its its studying studying in in radiation radiation ultra-violet ultra-violet and and plant plant control control evaporation evaporation and and

of of nt nt e asurem e m the the of of importance importance mperature mperature e t infall, infall, a r which which in in way way The The

The The es. es. tur ea f other other and and louring louring co rologist. rologist. eo t e m e e th to to interest interest of of much much

surface surface clothing), clothing), and and (fur (fur insulation insulation contained contained and and fauna, fauna, and and flora flora and and

surface surface of of properties properties and and function function elements elements climatic climatic of of s s inter-relationship

the the with with together together , , d e discuss was was ual) ual) the the with with dealt dealt five five and and four four Sessions Sessions

1957 1957 April April Bulletin Bulletin WMO WMO

64 64

2I 2I October October they they travelled travelled to to Broken Broken J. J. W. W. GIBES GIBES

diately diately following following the the symposium. symposium. On On

tion. tion.

a a study study tour tour on on the the four four days days imme­

more more than than

usually usually

luxuriant luxuriant vegeta­

A A number number of of delegates delegates embarked embarked on on

rivers, rivers, many many small small lakes lakes and and much much

ed ed by by the the tour tour was was marked marked by by flooded flooded

The The study study tour tour

zones, zones, for for the the so-called so-called arid arid zone zone cover­

be be the the variability variability of of rainfall rainfall in in arid arid

gained. gained. The The strongest strongest of of these these must must

symposium. symposium.

dim dim

the the vividness vividness

of of the the impressions impressions

work work in in related related fields fields covered covered by by the the

was was

of of

such such excellence excellence

that that this this did did not not

cerned cerned with with the the application application of of their their

the the

Australian Australian

organizing organizing committee committee

climatologists climatologists and and meteorologists meteorologists con­

certain certain

amount amount

of of

fatigue, fatigue,

the the work work of of

be be an an essential essential and and valuable valuable task task for for

the the

heels heels

of of the the symposium symposium caused caused a a

published published proceedings proceedings will will undoubtedly undoubtedly

miles miles in in

four four

days days

following following

hard hard on on

sive sive investigation. investigation. A A study study of of the the

Although Although

the the

tour tour of of about about I,ooo I,ooo

will will repay repay continued continued and and more more inten­

knowledge knowledge had had been been covered, covered, which which

viction viction that that a a considerable considerable field field of of of of the the Bureau Bureau of of Meteorology. Meteorology.

organization, organization, and and a a unanimous unanimous con­ logical logical Physics Physics and and the the Central Central Office Office

Government Government and and UNESCO UNESCO for for the the ing ing the the CSIRO CSIRO Division Division of of Meteoro­

thanks thanks to to the the chairman, chairman, the the Australian Australian were were given given the the opportunity opportunity of of inspect­

The The symposium symposium concluded concluded with with bourne bourne on on 24 24 October October where where delegates delegates

Eaters) Eaters) ! ! The The tour tour concluded concluded in in Mel­

as as dew dew comes comes from from the the soil. soil. (World (World Organization Organization of of Wichetty-grub Wichetty-grub

tions tions much much of of the the moisture moisture condensed condensed new new organization organization entitled entitled WOWE WOWE

was was

suggested suggested that that under under some some condi­ eminent eminent meteorologists meteorologists have have formed formed a a

tered tered in in measuring measuring evaporation. evaporation. It It aborigine. aborigine. is is It It rumoured rumoured that that some some

many many respects, respects, similar similar to to those those encoun­ grubs, grubs, a a delicacy delicacy of of the the Australian Australian

the the difficulties difficulties in in this this field field were, were, in in duced duced beverages beverages and and eating eating wichetty wichetty

being being pointed pointed out. out. appeared appeared It It that that tunity tunity of of sampling sampling some some locally locally pro­

ods, ods, and and in in particular particular visual visual methods, methods, where where delegates delegates were were given given the the oppor­

comment, comment, the the defects defects of of existing existing meth­ provided provided on on the the shores shores of of Lake Lake Hattah, Hattah,

measurement measurement

was was the the subject subject of of much much and and entertaining entertaining picnic picnic lunch lunch was was

integrated integrated surveys surveys was was essential. essential. Dew Dew agriculture agriculture is is practised. practised. A A pleasant pleasant

orologists orologists

and and other other workers workers in in making making neighbouring neighbouring areas areas where where marginal marginal

also also that that co-operation co-operation between between mete­ seeing seeing typical typical irrigation irrigation country country and and

be be

put put

into into effect effect in in arid arid zones zones and and in in the the vicinity vicinity of of Mildura Mildura by by bus, bus,

a a distinct distinct need need for for these these regulations regulations to to the the next next day day the the party party toured toured the the area area

ulations. ulations.

was was It It evident evident that that there there was was saline saline water water were were demonstrated. demonstrated. On On

reference reference

to to the the WMO WMO Technical Technical Reg­ and and a a solar solar still still for for the the distillation distillation of of

tions tions

necessary necessary was was emphasized emphasized by by Station, Station, where where frost frost protection protection methods methods

broad broad scope scope of of meteorological meteorological observa­ Commonwealth Commonwealth Agricultural Agricultural Research Research

appreciation appreciation

by by WMO WMO of of the the very very day day was was spent spent in in inspecting inspecting the the nearby nearby

by by

Masson. Masson. During During this this session session the the to to Mildura Mildura where where the the remainder remainder of of the the

urement urement

of of dew dew was was made made in in the the paper paper 22 22 October October the the party party travelled travelled by by air air

reference reference to to the the problem problem of of the the meas­ experiment experiment is is being being conducted. conducted. ·On ·On

Gilead Gilead and and Rosenan Rosenan and and particular particular reservoir reservoir at at which which an an anti-evaporation anti-evaporation

tions tions

were were discussed discussed in in the the paper paper by by plant plant regeneration regeneration schemes schemes and and a a

of of session session nine. nine. The The general general considera­ ing ing inspecting inspecting plant plant associations associations and and

ments ments

in in arid arid zones zones were were the the subject subject that that afternoon afternoon and and the the following following morn­

Climatological Climatological

observational observational require­ Hill Hill by by chartered chartered aeroplane aeroplane and and spent spent

WMO WMO Bulletin Bulletin

April April 1957 1957

65 65

determined determined is is country country one one any any in in WMO WMO far far so so in in exercise exercise difficult difficult very very a a sents sents

under under assistance assistance for for TAB TAB by by gested gested pre­ procedure procedure this this needs needs urgent urgent the the

sug­ sum sum the the that that therefore therefore mind mind in in even even meet meet to to funds funds available available of of inability inability

bear bear should should services services Meteorological Meteorological the the of of view view In In country. country. each each in in tions tions

organiza­ participating participating different different the the

between between as as amounts amounts these these of of bution bution projects. projects. ing ing

distri­ relative relative the the suggest suggest will will time, time, exist­ under under commitments commitments continuing continuing

same same the the at at and, and, countries countries between between the the meet meet to to made made is is provision provision adequate adequate

funds funds assistance assistance technical technical available available of of that that provided provided so so do do to to liberty liberty at at

apportionment apportionment the the determine determine will 1957, 1957, is is it it Programme Programme Expanded Expanded the the under under

April April in in meeting meeting next next its its at at (TAB), (TAB), received received being being assistance assistance of of forms forms the the in in

Board Board Assistance Assistance Technical Technical The The variation variation request request to to wishes wishes government government

a a if if that that however however clear clear is is erally. erally. It It

gen­ projects projects going going and and commitments commitments needs. needs.

continuing continuing of of needs needs the the of of taken taken is is urgent urgent meeting meeting into into directed directed be be well well

regard regard due due that that ensure ensure to to and and request request could could allocation allocation present present the the times times

programme­ overall overall its its up up drawing drawing in in four four or or three three sum sum a a and and requirement requirement

government government a a to to guide guide broad broad a a as as serve serve the the of of short short far far very very fall fall programme programme

to to TAB TAB by by offered offered are are suggestions suggestions assistance assistance technical technical its its for for WMO WMO to to

The The government. government. the the upon upon binding binding available available funds funds increased increased slightly slightly The The

as as regarded regarded be be to to not not is is country country one one

any any in in agencies agencies specialized specialized the the between between

appreciated. appreciated.

as as funds funds of of subdivision subdivision

suggested suggested

wholly wholly not not was was WMO WMO under under assistance assistance

the the that that stressed stressed be be will will it it and and ing ing

for for demand demand global global the the of of urgency urgency

meet­ April April the the after after shortly shortly countries countries

and and extent extent real real the the time time that that at at but but

to to communicated communicated be be will will funds funds of of ment ment

obtained obtained probably probably position position this this that that

apportion­ the the on on decisions decisions TAB TAB The The

out out pointed pointed was was it it Secretary-General Secretary-General

the the from from circular circular the the In In Programme. Programme.

country. country. the the of of Expanded Expanded the the under under available available resources resources

development development economic economic the the in in marked marked the the exceeds exceeds far far assistance assistance technical technical

most most be be would would impact impact whose whose projects projects meteorological meteorological for for need need the the that that clear clear

those those to to given given therefore therefore is is priority priority is is it it supplied, supplied, the the of of sis sis in~ormation in~ormation

and and finance finance of of shortage shortage the the by by seriously seriously analy­ an an from from and, and, received received been been now now

limited limited be be must must missions missions existing existing have have replies replies the the of of Most Most world. world. the the out out

of of extension extension the the and and projects projects new new through­ meteorology meteorology in in assistance assistance nical nical

of of introduction introduction The The commitments. commitments. tech­ for for envisaged envisaged requirements requirements the the

continuing continuing definite definite are are there there where where larly larly on on information information for for services services orological orological

particu­ projects projects worthwhile worthwhile existing existing mete­ all all asked asked had had Secretary-General Secretary-General

of of continuation continuation the the meet meet to to go go must must the the programme, programme, rg58 rg58 the the planning planning in in

I

funds funds available available on on call call first first analysis analysis assist assist to to that, that, Bulletin Bulletin the the of of issue issue

final final the the In In concerned. concerned. is is WMO WMO as as January January the the in in mentioned mentioned was was T T

PROGRAMME PROGRAMME 1958 1958

April April 1957 1957 Bulletin Bulletin WMO WMO

I_ I_

66 66

vinced vinced of of the the r equirements, equirements, authorize authorize by by the the late late Professor Professor Alfredo Alfredo Crespi. Crespi.

tive tive C h air m a n n may, may, when when he he is is co n­ where where he he car ri es es on on the the work work started started

requ es ts ts and, and, in in such such cases, cases, the the Execu­ taken taken up up his his ass i gnmen t t in in Nicaragua Nicaragua

submission submission of of normal normal programme­ Meteorological Meteorological Service Service of of Argentina Argentina has has

ments ments must must inevitably inevitably arise arise a ft er er Professor Professor Oscar Oscar Vannini Vannini from from the the

is is It It clear clear however however that that urgent urgent r eq uire­

Nicaragua Nicaragua

Executive Executive Cha irm an an during during l ate ate 1956. 1956.

programme-requests programme-requests s ubmitt ed ed to to the the

sound sound

upper-air upper-air

observing observing

network. network.

tion tion by by TAB TAB of of the the formal formal country country

and and

to to lay lay th

e e general general

foundation foundation

for for a a

Assistance Assistance Committee Committee after after conside r a ­

wi ll ll even tu

a ll y y

take take

over over th ese ese stations stations

projects projects authorized authorized by by the the Technical Technical

training training

faci

li ties ties

for for the the l oca l l staff staff who who

approved approved programme programme r e pr ese nts nts those those

Mr. Mr. Skaar Skaar

wi ll ll

be be required required

to to set set up up

orological orological services services during during January. January. This This

to to th

e e installation installation

of of the the eq uipm e nt, nt,

und e r r WMO WMO were were circu l ated ated to to a ll ll mete­

site site

ye t t to to be be

determined. determined. In In additio n n

programm e e for for technical technical assistance assistance

eq

uip ment ment

at at Basrah Basrah

and and at at one one othe r r

The The details details of of the the approved approved 1957 1957

network network and and to to install install radiosonde radiosonde

development development of of an an upper-air upper-air o b serving serving

Working Working

capital capital and and reserve reserve fund fund

Iraq Iraq to to advise advise the the governmen t t on on the the

ical ical Service Service of of

Norway Norway has has a rriv ed ed in in

1957 1957 PROGRAMME PROGRAMME

Mr. Mr. John John Skaar Skaar of of the the Meteorolog­

Iraq Iraq

and and rewarding rewarding channels channels . . . tion . .

ably ably

as as possible possible into into the the most most essent i a l l programme programme are are worthy worthy of of spec ial ial men­

the the

availab

l e e limited limited finance finance as as equ it­ under under WMO WMO but but certain certain aspects aspects of of the the

him, him,

at at the the planning planning stage, stage, to to direct direct assistance assistance being being curre ntl y y carried carried out out

global global

requirements requirements and and have have enab l ed ed ab l e e to to d etai l l th e e full full programme programme of of

tar

y-General y-General

in in indicating indicating the the overall overall is is It It not not possible possible in in the the space space avai l­

be be particularly particularly valuable valuable to to the the Secre­

Current Current field field programme programme

The The replies replies however however have have proved proved to to

consideration consideration by by him . .

WMO. WMO.

major major

urgent urgent

requests requests

at at present present

under under

any any financial financial provision provision at at all all under under

Executive Executive

Chai

rman rman for for

two two

other other

no no doubt doubt be be found found impossible impossible to to

make make

provision provision

will will

also also

be be made made

by by the the

General General and and in in some some countries countries it it will will

confiden

tl

y y expected expected

th at at additional additional

the the circ ul ar ar issued issued by by the the Secretary­

for for a a mission mission

in in

the the

L ebano

n. n.

is is It It

teorological teorological services services in in their their replies replies to to

the the working working

capi t a l l

and and

reserve reserve fund fund

grammes grammes tentatively tentatively suggested suggested by by

me­

already already

be

e n n

authorized authorized

in in 1957 1957

from from

cases, cases, be be markedly markedly l ess ess than than th

e e pro­

that that

o ne ne

such such

project project

und

e r r WMO WMO has has

assistance assistance under under WMO WMO wi ll, ll, in in most most

ized ized

age n cy. cy.

is is It It

pleasing pleasing

to to record record

the the amo unts unts suggested suggested by by T AB AB for for

avai

l a ble ble und

e r r the the particular particular

special­

will will It It be be clearly clearly appreciated appreciated that that

they they do do in in f act act incr ease ease th e e programme programme

projects are are projects au thori zed zed from from this this fund fund

ance ance to to m ee t t th e e desired desired requirements. requirements. the the country country programme-request. programme-request. When When

a a variation variation in in the the app li cation cation of of assist­ adequately adequately at at th e e time time of of drawing drawing up up

project project then then it it is is at at liberty liberty to to request request which which could could not not hav e e been been for esee n n

teorolog y y as as compared compared with with some some other other to to m ee t t only only very very urg e nt nt r eq uirements uirements

the the need need for for greater greater assistance assistance in in fund. fund. me­ This This fund fund may may b e e ca lled lled upon upon

th e e government government is is itself itself persuaded persuaded of of from from the the working working capital capital and and r ese rve rve

on on the the foregoing foregoing principles principles but but that that the the if if financing financing of of additional additional projects projects

WMO WMO Bulletin Bulletin April April 1957 1957

67 67

hydrology hydrology in in minar minar e s training training hnical hnical ec t the the analysing analysing and and plotting plotting of of work work The The

a a of of form form e e th in in project project regional regional stifies. stifies. ju so so information information of of availability availability

inter­ an an for for provision provision es es mak 1957 1957 for for the the where where services services appropriate appropriate all all

programme programme WMO WMO d d authorize The The to to visits visits his his continue continue will will Aspliden Aspliden Mr. Mr.

observations. observations. l l origina of of copies copies curate curate

seminar seminar resources resources Water Water

­ ac obtain obtain to to Programme, Programme, d d e Expand

the the r r e und d d e i suppl ent, ent, ipm equ filming filming

y. y. tr ­ micro using using is is Aspliden Aspliden Mr. Mr. events. events.

coun­ that that in in activities activities ogical ogical l eoro t e m locust locust ted ted en docum and and known known well well of of

of of unification unification e e th in in s s ult es r first-class first-class period period a a over over nts nts e developm synoptic synoptic

produced produced already already had had work work sterling sterling the the of of made made be be to to analysis analysis critical critical

whose whose and and Iran Iran in in m1sswn m1sswn assistance assistance and and exact exact an an enable enable to to records records cal cal logi

Ankara Ankara in in Service Service logical logical

Meteoro- e e th of of headquarters headquarters

the the e e id ts u o recorder recorder fall fall

ain­ r a a demonstrating demonstrating ce, ce, Servi

teorological teorological e M Turkish Turkish the the

of of members members other other and and tion, tion,

Sec­ ical ical og Hydrometeorol the the

of of ef ef i ch Aykulu, Aykulu, Tevfik Tevfik Mr. Mr.

th th i w left) left) from from (second (second

vVilson vVilson alter alter ' \'\ pert pert ex WMO WMO

nical nical ech t WMO WMO e e th initiated initiated had had who who - eoro met original original collecting collecting Africa Africa of of

Pramanik Pramanik Sushil Sushil Dr. Dr. of of th th ea d sudden sudden parts parts throughout throughout extensively extensively d d e travell

the the rd rd eco r we we that that ret ret eg r with with is is It It has has locust, locust, t t er des e e th of of control control

the the in in concerned concerned factors factors rological rological eo met

n n Ira

y y ud st to to ion ion s mis WMO WMO the the ducting ducting

con­ is is who who Aspliden, Aspliden, H. H. C. C. I. I. Mr. Mr.

ocust. ocust. l rt rt ese d the the of of control control with with

concerned concerned East East e e Middl the the and and Africa Africa control control Locust Locust - Africa Africa East East British British

in in governments governments several several e e th facing facing

problems problems the the to to approach approach l l logica

meteoro­ und und so a a producing producing of of promise promise service. service. logical logical

excellent excellent shows shows mission mission this this of of work work ro­ eteo m the the of of development development the the in in

The The I957· I957· in in early early pert pert ex second second a a by by nt nt governme e e th to to adviser adviser as as act act e, e, tim

joined joined be be will will Aspliden Aspliden Mr. Mr. that that hoped hoped same same e e th at at and, and, installation installation its its vise vise

s s i it it and and Nairobi Nairobi at at well well y y l super­ extreme will will Vannini Vannini Professor Professor and and vided vided

proceeding proceeding is is ected ected ll co pro­ information information being being is is equipment equipment Meteorological Meteorological

1957 1957 April April Bulletin Bulletin WMO WMO

68 68

gramme gramme covering covering practically practically all all aspects aspects needs needs of of individual individual countries. countries.

carried carried

out out a a comprehensive comprehensive pro­ particular particular application application to to meet meet the the

India India

under under

this this fellowship fellowship where where he he Technical Technical Assistance Assistance and and also also to to its its

Dr. Dr.

Khalek Khalek spent spent three three months months in in pects pects of of the the Expanded Expanded Programme Programme of of

Royal Royal

Afghan Afghan Meteorological Meteorological Institute. Institute. questions questions relative relative to to the the general general as­

director-general director-general of of the the recently recently formed formed ices ices in in Africa Africa and and to to answer, answer, in in person, person,

award award was was made made to to Dr. Dr. Abdul Abdul Khalek, Khalek, practically practically all all the the meteorological meteorological serv­

orological orological

services services ; ; one one recent recent such such the the directors directors and and representatives representatives of of

and and organization organization of of some some older older mete­ a a valuable valuable opportunity opportunity for for him him to to meet meet

Programme Programme to to study study administration administration in in the the Canary . Islands. This This provided provided

granted granted awards awards under under the the Expanded Expanded Regional Regional Association Association I I at at Las Las Palmas Palmas

meteorological meteorological

services services have have been been a a short short time time the the second second session session of of

some some

cases, cases, even even directors directors of of younger younger WMOjTA WMOjTA Unit Unit was was able able to to attend attend for for

should should be be granted granted such such awards. awards. In In During During January January the the chief chief of of the the

dictate dictate that that more more junior junior personnel personnel

where where the the needs needs of of basic basic REGIONAL REGIONAL training training ASSOCIATION ASSOCIATION I I

cers cers of of the the individual individual service service except except

more more experienced experienced or or more more senior senior offi­

study study are are generally generally chosen chosen from from the the available available to to him him under under the the fellowship. fellowship.

Meteorologists Meteorologists selected selected for for fellowship fellowship addition addition to to the the academic academic training training

application application

to to their their parent parent services. services. will will provide provide a a most most valuable valuable practical practical

specialized specialized knowledge knowledge necessary necessary for for participation participation in in this this proposed proposed tour tour

meteorological meteorological

services services may may develop develop fellowship fellowship award award and and it it is is felt felt that that his his

worthwhile worthwhile means means whereby whereby officers officers of of Imperial Imperial College College under under a a WMO/TA WMO/TA

fellowship fellowship

scheme scheme provides provides a a most most Service Service of of Burma, Burma, is is studying studying at at the the

whole whole range range of of meteorology meteorology and and the the ant ant director director in in · · the the Meteorological Meteorological

case. case. Subjects Subjects of of study study cover cover the the Europe. Europe. Mr. Mr. Ba Ba Kyi, Kyi, who who is is an an assist­

type type of of study study desired desired in in each each individual individual hydrological hydrological installations installations in in western western

institutions institutions

providing providing the the particular particular London University, University, for for study study of of

meteorological meteorological services services or or at at academic academic tour tour arranged arranged by by the the Imperial Imperial College, College,

enabled enabled to to receive receive training training with with other other granted granted to to Mr. Mr. Ba Ba Kyi Kyi to to join join a a group group

didates didates from from recipient recipient countries countries are are is is illustrated illustrated by by the the facilities facilities being being

programme programme under under which which selected selected can­ programme programme worthy worthy of of particular particular note note

portance portance attaches attaches to to the the fellowship fellowship One One other other aspect aspect of of the the fellowship fellowship

being being directed, directed, very very considerable considerable im­

meteorological meteorological technical technical assistance assistance is is new new services. services.

Of Of the the several several avenues avenues into into which which contribution contribution in in the the development development of of the the

provide provide a a worthwhile worthwhile and and valuable valuable

FELLOWSHIP FELLOWSHIP

ACTIVITIES ACTIVITIES

officers officers of of meteorological meteorological services services does does

of of such such fellowships fellowships to to senior senior directorate directorate

is is organized. organized. is is It It felt felt that that the the award award

pate. pate. the the India India Meteorological Meteorological Department Department

will will be be advised advised and and invited invited to to partici­ various various specialized specialized sections sections in in which which

determined determined all all interested interested governments governments tive tive problems, problems, Dr. Dr. Khalek Khalek saw saw the the

details details of of date date and and venue venue have have been been broad broad organizational organizational and and administra­

the the

formative formative stage. stage. As As soon soon as as final final Calcutta. Calcutta. In In addition addition to to studying studying the the

this this year year but but arrangements arrangements are are still still international international in in airports airports at at Bombay Bombay and and

will will be be held held in in October October or or November November New New Delhi Delhi and and Poona Poona and and also also the the

Asia Asia area. area. is is hoped hoped It It that that the the seminar seminar ment. ment. He He visited visited the the headquarters headquarters at at

the the Mediterranean Mediterranean and and South-West South-West of of the the India India Meteorological Meteorological Depart­

to to

meet meet the the needs needs of of the the countries countries in in of of the the organization organization and and administration administration

WMO WMO Bulletin Bulletin

April April 1957 1957

69 69

services services meteorological meteorological for for task task diate diate for for areas, areas, land land over over elements elements surface surface

imme­ the the Committee, Committee, Executive Executive the the of of maps maps the the on on concentrated concentrated being being

by by adopted adopted are are specifications specifications the the If If is is attention attention moment moment the the For For sphere. sphere.

atmo­ free free the the and and elements) elements) (surface (surface

CCl. CCl. from from support support full full with with Committee Committee areas areas sea sea elements), elements), (surface (surface areas areas

Executive Executive the the to to on on goes goes now now report report the the land land with with respectively respectively dealing dealing sections, sections,

and and adopted adopted fact fact in in were were CCl CCl by by gested gested three three into into be be would would division division logical logical

sug­ modifications modifications the the all all Practically Practically more more a a that that group group the the by by decided decided

CCl. CCl. of of comments comments the the of of light light the the was was atlas. atlas. It It physical physical a a and and dynamic dynamic

in in report report second second the the to to made made be be should should a a namely namely sections, sections, main main two two into into

modifications modifications what what on on decide decide to to ing ing divided divided be be should should atlas atlas climatic climatic world world

meet­ further further a a arrange arrange to to possible possible was was the the that that proposal proposal original original group's group's

it it Washington, Washington, in in present present also also were were the the about about Members Members by by expressed expressed been been

Centerton Centerton in in meeting meeting the the attended attended had had opinion opinion of of diversity diversity Considerable Considerable

had had who who those those all all As As (CCl). (CCl). Climatology Climatology

for for Commission Commission the the of of session session second second specifications specifications of of Revision Revision

the the at at considered considered was was report report second second

group's group's the the 6o, 6o, p. p. on on reported reported As As

secretary. secretary. as as again again

served served

Secretariat Secretariat action action Subsequent Subsequent

WMO WMO the the of of Ashford Ashford M. M. 0. 0. Mr. Mr.

Meteorology. Meteorology. Maritime Maritime for for Commission Commission

the the of of

Climatology Climatology Marine Marine

on on

Group Group

factors. factors. operational operational with with not not and and

Working Working the the represent represent to to

session session the the

of of

elements elements climatic climatic basic basic with with only only deal deal

part part

attended attended also also Haggard Haggard

H. H. W. W.

Mr. Mr.

should should atlas project project atlas climatic climatic world world

VI. VI. Association Association

Regional Regional of of

Atlases Atlases

the the that that view view original original its its to to

adhered adhered

Climatic Climatic on on

Group Group

Working Working

the the sented sented

group group The The interest). interest). operational operational of of

repre­ who who Wallen, Wallen, C. C. A. A. C. C.

Dr. Dr. by by

primarily primarily phenomenon phenomenon local local a a be be to to (felt (felt

and and group group

the the of of

members members

the the of of one one

rain rain freezing freezing of of and and impracticable) impracticable)

but but all all

by by

attended attended

was was session session The The

be be to to (considered (considered conductivity conductivity soil soil

atlases. atlases.

climatic climatic

for for

specifications specifications draft draft

of of those those are are list list the the in in included included longer longer

contained contained

which which

report, report,

first first its its

on on bers bers

no no Maps Maps mm. mm. and and exceeding exceeding

IO IO I I

Mem­ by by made made comments comments the the

consider consider

precipitation precipitation with with

days days

of of

number number

to to I957, I957, 7 7 January January I2 I2 to to from from Jersey, Jersey,

the the and and cover cover snow snow of of depth depth mum mum

New New Centerton, Centerton, in in met met

Atlases Atlases

matic matic

maxi­ mean mean the the temperature, temperature, imum imum

Cli­ on on

Group Group

Working Working

Committee Committee

max­ mean mean the the temperature, temperature, maximum maximum

Executive Executive The The

specifications. specifications.

WMO WMO

daily daily mean mean the the days, days, cloudy cloudy

and and

clear clear

uniform uniform to to prepared prepared

atlases atlases

climatic climatic

of of frequency frequency the the of of maps maps include include These These

national national on on

based based

sheets sheets

regional regional

Members. Members. by by expressed expressed needs needs the the

of of collection collection a a of of form form

the the in in

atlas atlas

meet meet to to maps maps of of number number a a of of addition addition

climatic climatic

world world a a

preparing preparing

for for

plans plans

the the is is report report second second its its in in

group group the the by by

the the to to p. p. 87) 87) No. No. V, V, 3, 3, Vol. Vol. and and I8 I8 p. p.

adopted adopted change change important important

most most

The The

No. No. V, V, Vol. Vol. particular particular in in I, I, (see (see tin tin

n n specifications. specifications. Bulle­ the the of of issues issues previous previous in in

revised revised the the completed completed group group the the which which made made been been already already has has DEFERENCE DEFERENCE

ATLASES ATLASES CLIMATIC CLIMATIC

1957 1957 April April Bulletin Bulletin WMO WMO

70 70

ciation ciation I I (Africa) (Africa) and and the the Commission Commission ature, ature, d e w w point, point, wind wind speed speed and and

the the r ece nt nt sessions sessions of of R eg ional ional Asso­ ures ures at at present present are are visibility, visibility, temper­

by by the the discussions discussions on on this this subject subject e at at lem e nts nts which which this this a pparatus pparatus m e as­

observational observational networks networks was was also also s hown hown co mmunic ato rs. rs. Th e e m e t eo rological rological

stations stations as as a a m ea ns ns of of improving improving being being handl e d d by by human human observers observers or or

Evidence Evidence of of the the interest interest in in automatic automatic over over the the national national circuits circuits without without

typewriter typewriter code code and and transmitting transmitting them them

capable capable of of converting converting them them to to tele­ p. p. II2). II2).

ing ing meteorological meteorological conditions, conditions, it it is is also also were were r epo rt e d d by by Japan Japan (Vol. (Vol. V, V, o. o. 3, 3,

e r r e obs rv e r r and, and, in in addition addition to to m ea sur­ the the use use of of automatic automatic rainfall rainfall stations stations

as as th e e automatic automatic t e l etypewr iter iter weath­ More More r ece ntly ntly some some d eve lopment s s in in

matic matic weather weather station. station. This This is is known known the the Bulletin Bulletin (Vol. (Vol. II, II, No. No. 4, 4, p. p. rrg). rrg).

has has give n n details details of of its its n ewest ewest a uto­ was was published published in in a n n earlier earlier numb er er of of

Th e e United United States States Weather Weather Bureau Bureau station station operating operating at at La g houat houat () (Algeria)

account account of of a a French French automatic automatic weather weather La nd nd station station

in in the the WMO WMO Bu . lletin. lletin. In In this this way way an an

r e ported ported by by publishing publishing suitable suitable articles articles United United States. States.

automatic automatic

weather weather s tations tations s hould hould b be be ee d n es i gne d d an d d constructed constructed in in the the

server server

teletypewriter teletypewriter weather weather ob­

Main Main unit unit of of U.S. U.S. automatic automatic

cided cided

that that d eve lopments lopments in in th e e us e e of of weather weather stations, stations, both both of of which which have have

A

Executive Executive Committee Committee it it was was d e ­ news news of of two two n e w w typ es es of of automatic automatic

the the fourth fourth session session T T of of the the vVMO vVMO for for Climatology. Climatology. This This article article gives gives

UNITED UNITED STATES STATES AUTOMATIC AUTOMATIC WEATHER WEATHER STATIONS STATIONS

pletion pletion of of all all the the rel eva nt nt national national

O.M.A. O.M.A.

Africa) Africa) without without waiting waiting for for the the com­

sheets sheets (as (as has has already already been been don e e in in sheets. sheets.

should should also also be be started started on on th e e regional regional with with plans plans for for producing producing th e ir ir r eg ional ional

sidered sidered

how eve r r that that work work could could a nd nd should should proceed proceed as as rapidly rapidly as as possible possible

th e ir ir own own co untries . . Th e e group group con­ that that presid e nts nts of of regional regional associations associations

will will be be

to to prepare prepare climatic climatic atlases atlases for for atlases. atlases. It It was was therefore therefore recommended recommended

WMO WMO Bulletin Bulletin

April April 1957 1957

71 71

A A een. een. r sc rd rd a nd a t s a a in in sed sed hou bulb bulb system system this this e e us To To change. change. es es valu

nsing nsing se a a with with tubing tubing e e bl exi fl filled filled y y cur orological orological e met e e th as as mitted mitted s tran are are

mer­ a a using using nt nt e trum s in l l a di six-inch six-inch ers ers tt e l Morse Morse nt nt e differ and and hanism hanism ec m

precision precision a a on on indicated indicated is is e e ratur e p em T code-sending code-sending a a to to connected connected is is tator tator

riod. riod. e p h eac of of nd nd e the the at at ro ro ze to to commu­ the the of of nts nts e m g se e e th of of Each Each

rning rning etu r relay relay e e th , , s hour six six of of ods ods ri e p tor. tor. a indic e e th from from d d e nsmitt a tr figure figure

for for ed ed rd eco r are are amounts amounts Cumulative Cumulative h h eac for for milliseconds milliseconds r63 r63 for for · te te a pl

lay. lay. e d r d e pp e t s a on on s s mount a cipitation cipitation commutator commutator e e th against against firmly firmly pointer pointer

­ e pr s s nt cou which which ge ge u ga in- a r bucket bucket e e th pulls pulls dial dial the the neath neath e b solenoid solenoid

tipping­ d d e t ea h a a from from obtained obtained are are A A er. er. point ding ding ea r visual visual and and arm arm

measurements measurements Precipitation Precipitation . . ose purp contacting contacting of of purpose purpose dual dual e e th es es rv e s

ial ial spec s s thi for for d d e adapt r r o d d e ifi od m r r e point A A instruments. instruments. g g din ea ct-r e dir

n n e be ave ave h which which instruments instruments standard standard d d ar nd a t s of of y y r e riph e p the the around around

are are factors factors l l ca i g rolo eo t e m the the ure ure eas m d d e fitt e e ar nts nts e m seg e e typ r r ato commut

to to d d se u nts nts e rum st in the the of of Most Most em em t sys this this In In s. s. r ette l e e -cod se Mor

y y b tion tion a inform rological rological eo t e m transmit transmit

. . y usl eo imultan s stations stations o o t stations stations atic atic utom a e mot e r ir ir e th

of of

s s n ze do of of printers printers the the o o t y y l ect dir in in services services military military e e th y y d b d se u system system

ts ts n segme

ator ator t commu the the over over moves moves

pointer pointer the the of of nd nd e eme eme r ext

The The er. er. point ose ose urp p l l a du

showing showing barometer barometer eroid eroid n A

data data l l ca logi eoro t e m send send o o t tors tors ca a a indi from from d d e lop eve d as as w observer observer er er

e e th rs rs gge tri and and responds responds (SECO) (SECO) s s ratu weath­ etypewriter etypewriter l e t automatic automatic The The

Appa­ Control Control l l a ti en qu Se Secondary Secondary

e e th station, station, ntral ntral ce a a by by d d e itt sm n a tr . . e futur near near

is is characters characters of of combination combination ate ate pri e e th in in up up set set e e b to to are are fifteen fifteen r r e furth a a

ppro­ a e th n n e Wh code. code. r r e rit ew p y t e tel nd nd a operation operation in in already already e e r a stations stations

to to nts nts e m seg commutator commutator e e th at at d d e h is l ese ese th of of Four Four port. port. e r automatic automatic e e th in in

tab­ es its its circu l l electrica e e th rts rts e conv included included be be to to weather weather of of type type the the and and

unit unit s s Thi d. d. e ign es d been been has has r, r, code ments ments e measur height height cloud cloud enable enable will will

a a called called s, s, e diod and and relays relays of of twork twork e n nt nt e lopm eve d r e furth that that d d e hop is is It It

nious nious e ing an an teletypewriter teletypewriter the the with with precipitation. precipitation. and and pressure pressure direction, direction,

1957 1957 April April Bulletin Bulletin WMO WMO

72 72

:.ro :.ro feet feet wide, wide, is is constructed constructed

of of alumi-

P. P. R. R.

The The vessel, vessel, which which is is feet feet long long 20 20 and and

ment ment

until until

the the next next operational operational period. period. three three minutes. minutes.

contact contact supplying supplying

power power

to to the the

equip­

ing ing table. table.

A A single single

transmission transmission

takes takes

period period

the the master master

control control breaks breaks

the the

.receivers .receivers

and and

evaluated evaluated

from from

a a

decod­

At At the the

conclusion conclusion

of of the the transmission transmission

.ceived .ceived on on standard standard

communications communications

sufficient sufficient

time time to to

identify identify

the the signal. signal.

frequency. frequency.

These These

signals signals can can be be

re­

that that even even

inexperienced inexperienced

operators operators

have have

·on ·on a a pulse-modulated pulse-modulated

6 6 Mcjsec Mcjsec

carrier carrier

sending sending speed speed

may may be be

controlled controlled

so so

.code .code groups groups

and and transmits transmits

the the signals signals

meteorological meteorological

measurements. measurements.

The The weather weather information information

into into

three-letter three-letter

followed followed

by by

the the correct correct

sequence sequence

of of The The automatic automatic

station station

translates translates

ensures ensures that that the the identification identification signal signal is is

.radio .radio range range in in master master excess excess control control of of 8oo 8oo and and miles. miles. a a programme programme timer timer

preliminary preliminary periods periods trials trials of of show show the the station station that that it it provides provides has has a a reliable reliable

·only ·only in in the the cally cally experimental experimental rewound during during rewound stage stage but but the the operational operational

the the day. day. At At A A present present chronometer chronometer this this equipment equipment which which is is is is automati­

in in code code at at regular regular intervals intervals throughout throughout

pressure pressure and and

wind wind

speed speed

and and

direction direction

will will replace replace

the the

dry dry battery battery supply. supply.

1he 1he air air

temperature, temperature,

sea sea

temperature, temperature,

driven driven generator generator

and and storage storage

battery battery

rated rated in in a a buoy, buoy,

the the station station

broadcasts broadcasts

ture ture models models

of of the the

station station

a a petrol­

unattended unattended

for for

six six months. months.

Incorpo­

for for the the

electronic electronic

components. components.

In In fu­

anchored anchored in in

remote remote

locations locations

and and

left left

the the

low-voltage low-voltage

to to rzo rzo

V V at at

6o 6o cjsec cjsec

marine marine weather weather

station station

which which

can can

be be

and and a a rotary rotary

converter converter

which which

changes changes

has has announced announced

the the development development

of of

a a

The The power power

is is

supplied supplied

by by dry dry

cells cells

The The National National Bureau Bureau of of Standards Standards

self-balancing self-balancing bridge bridge circuit. circuit. Marine Marine station station

tions tions of of resistance resistance by by a a motor-driven motor-driven

conditions conditions are are converted converted into into varia­

and and climatological climatological the the vane. vane. purposes. purposes. Variations Variations of of meteorological meteorological

available available magnetic magnetic research, research, for compass compass statistical statistical synchronously synchronously studies studies with with

centre centre activating activating so so that that the the a a servo servo information information which which is is positions positions then then a a

on on standard standard selsyn selsyn punch punch transmitter transmitter cards cards at at the the and and records records receiver receiver circuit circuit

observation. observation. tube. tube. The The These These wind wind tapes tapes vane vane can can is is connected connected be be placed placed to to a a

l(y l(y making making is is applied applied a a punched punched to to the the grid grid tape tape of of of of a a each each vacuum vacuum

r;ecord r;ecord small small of of the the generator generator magnetic information information transmitted transmitted whose whose output output

system system robust robust is is its its three-cup three-cup ability ability anemometer anemometer to to preserve preserve drives drives a a a a

Another Another the the time time feature feature of of measurement. measurement. of of this this automatic automatic An An especially especially

strip strip

and and

is is clamped clamped

to to the the strip strip at at

the the usual usual hourly hourly

observations. observations.

slave slave

needle needle

rides rides

above above

a a resistance resistance

required required

to to furnish furnish a a report report

between between

The The barometer barometer

is is modified modified

so so that that

a a

in in case case the the automatic automatic

observer observer is is

cision cision

barometer barometer

measures measures

pressure. pressure.

taken taken

subsequently subsequently every every

rz rz

minutes minutes

ured ured

by by simple simple

thermistors thermistors

and and

a a pre­

each each transmission transmission and and

new new

readings readings

are are

Air Air

and and sea sea

temperature temperature

are are

meas­

minute minute sample sample is is taken taken just just prior prior to to

vides vides wind wind speed speed and and direction. direction. A A one­

ment ment in in shockproof shockproof

mountings. mountings. standard standard contacting contacting anemometer anemometer pro­

electronic electronic

and and

meteorological meteorological used used equip­ to to determine determine visibility visibility whilst whilst a a

and and four four watertight watertight

wells wells hold hold all all Transmissometer Transmissometer the the measurements measurements are are

a a depth depth of of r,roo r,roo metres. metres. Two Two

masts masts

screen screen

gives gives

the the

dew dew

point. point. and and can can be be anchored anchored in in waters waters

up up to to

dew-cell dew-cell

in in a a small small metal metal

hood hood on on the the nium nium and and other other non-magnetic non-magnetic alloys alloys

WMO WMO Bulletin Bulletin

April April 1957 1957

73 73

ro.- frs. frs. Sw. Sw. Price: Price: French. French. 3.50 3.50 frs. frs. Sw. Sw. : : Price Price

English­ 1956. 1956. April, April, I7-30 I7-30 Spanish. Spanish. Russian- Session. Session.

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Records Records

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Naviga­ Air Air English­ International International for for I956. I956. edition, edition, 2nd 2nd

Service Service Meteorological Meteorological II- ume ume Regulations), Regulations), Technical Technical the the

Vol­ Regulations. Regulations. Technical Technical - 3 rs. rs. BD. BD. 49· 49· (excluding (excluding Documents Documents Basic Basic - I BD. BD.

No. No. WMO- No. No. WMO-

documents documents Basic Basic

WMO WMO THE THE F F 0 0 PUBLICATIONS PUBLICATIONS

1957 1957 April April Bulletin Bulletin WMO WMO

74 74

Region Region or or Part Part

of of the the Volumes . . Pric e e : : Sw. Sw. fr. fr. I . -

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No. No. English. English. French French 2. 2. -

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Height, Height, maps. maps. Wind, Wind, Bilingual Bilingual Rainfall Rainfall (English (English and and and and

spheric spheric of of Pressure, Pressure, marine marine data data Cloud Cloud and and world world

ture ture storm storm and and days. days. Humidity, Humidity, Part Part Atmo­ Tables Tables 2 2 : :

TP. TP. Sea. Sea. Part Part 2I. 2I. World World II II Air Air distribution distribution - 2I 2I Tempera­ - of of thunder­

40

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of of - Observation Observation at at

Price Price : : Sw. Sw. frs. frs. 2 . -

(English (English and and French). French).

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Supplement Supplement No. No. Bilingual Bilingual r. r. French. French.

storm storm

days . . Part Part

Tables. Tables. I I : : brary brary Practice . . English English -

World World distribution distribution

of of thunder­ 39· 39· TP . . I4 I4 Guide Guide to to Meteorological Meteorological Li­

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fascicule fascicule

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Fascicules Fascicules

I, I, II , , Ill, Ill, IV. IV. rent rent investigations investigations and and pro­

International

e. e. Annee Annee I952. I952. 38. 38. TP. TP. I3 I3 Atmospheric Atmospheric Radiation Radiation (Cur­

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II, II, Ill, Ill, IV, IV, V, V, VI.* VI.*

port port on on Problems Problems

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Regions Regions

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Pressure Pressure - Preliminary Preliminary

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Volume Volume C: C: Transmissions. Transmissions.

36. 36. TP . . I2 I2 Reduction Reduction of of Atmospheric Atmospheric

Chapter Chapter Ill Ill Sw. Sw. : : frs. frs. ].-

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: :

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Note Note No. No. 6. 6. French . . Voiume Voiume B: B: Codes. Codes. English­

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II II

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the the Wind Wind -

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1954. 1954.

English English

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completed completed

by by the the WMO), WMO), No. No. 3 · · English. English. French French Sum­

Publication Publication

No. No.

78, 78, being being

craft craft Icing. Icing. Technical Technical Note Note

serving serving Practice Practice

(former (former

IMO IMO 30. 30. TP . . 9 9 Meteorological Meteorological - Aspects Aspects of of Air­

orological orological Instrument Instrument and and Ob­

8. 8. TP. TP. 3 3 - Guide Guide to to International International

Mete­ mary. mary. Price Price : : Sw. Sw. fr . . I.-

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French). French). Price: Price: Sw. Sw. frs. frs. I0.-

Temperature. Temperature. Technical Technical Note Note Bilingual Bilingual (English (English and and

Sea. Sea.

Part Part - I Sea Sea Surface Surface 5· 5· TP. TP. Composition Composition 2 2 of of - the the WMO. WMO.

26. 26. TP. TP.

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of of Observation Observation

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edition. edition.

mary. mary. Price Price : : Sw. Sw. fr. fr. I . -

tion tion No. No. being being completed completed 2, 2, No . . English. English. French French I. I. Sum­

Monde Monde (former (former IMO IMO Publica­ cipitation . . Technical Technical Note Note

TP . . 2. 2. Offices Offices - I Meteorologiques Meteorologiques 24. 24. TP. TP. du du 7 7 Artificial Artificial Inducement Inducement of of Pre­

WMO- No. No. WMO- No. No.

Technical Technical Publications Publications

WMO WMO

Bulletin Bulletin April April 1957 1957

75 75

frs. frs. J.- Sw. Sw. : : Price Price 6.- frs. frs. Sw. Sw. : : Price Price

French. French.

English- I954· I954· French. French. - English English

January, January, Melbourne, Melbourne, Session, Session, I953· I953· April, April, Washington, Washington,

First First the the of of Report Report Final Final ged ged Session, Session, First First the the of of Report Report

Abrid­ Pacific). Pacific). (South-West (South-West Final Final Abridged Abridged teorology. teorology.

V V

Association Association Regional Regional - 3 3 1 . . RP zS. zS. Me­ Synoptic Synoptic for for Commission Commission - 7 RP. RP. I6. I6.

frs. frs. Sw. Sw. : :

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- English English 1953. 1953. March, March,

­ n E I953· I953·

November, November, , , Paris

Washington, Washington, Session, Session, First First

Session, Session,

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the the of of

Report Report

the the of of Report Report Final Final Abridged Abridged

Final Final

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. . Climatology for for Commission Commission - 6 6 RP. RP. I4. I4.

Agricultural Agricultural for for Commission Commission I2 I2 RP. RP. 27. 27.

frs. frs. J.­ Sw. Sw. : : Price Price frs. frs. Sw. Sw. J.- Price: Price: -French. -French.

French. French. ish- l Eng I953· I953· gust, gust, ish ish l Eng I953· I953· January, January, rive, rive,

Au­ Toronto, Toronto, Session, Session, First First Tanana­ Session, Session, First First the the of of

the the of of Report Report Final Final Abridged Abridged Report Report Final Final Abridged Abridged . . ca)

America). America). Central Central and and (North (North ­ (Afri I I Association Association Regional Regional - 5 . . RP I3. I3.

IV IV Association Association . . RP Regional Regional 23. 23. - II II

sale. sale. for for Not Not

frs. frs. . . Sw

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Spanish. Spanish.

French. French. English- I952. I952.

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I953

tember, tember,

WMO WMO the the of of Report Report Annual Annual 4 4

RP. RP.

I2. I2.

Sep- aneiro, aneiro, J de de Rio Rio Session, Session,

First First the the of of Report Report l l Fina frs. frs. Sw. Sw. : : J.- Price Price French. French.

Abridged Abridged America). America). (South (South English­ I952. I952. June, June, May-

III III Association Association Regional Regional Io Io RP. RP. Zurich, Zurich, 22. 22. Session, Session, First First the the of of

. . frs Sw. Sw. : : J.­ Price Price French. French. Report Report Final Final Abridged Abridged rope). rope).

English­ I953· I953· -September, -September,

(Eu­ VI VI Association Association Regional Regional - 3 RP. RP. I. I. I I

August August

Toronto, Toronto, Session, Session, First First

frs. frs. Sw. Sw. J.- Price: Price: -French. -French.

the the

of of

Report Report

Final Final

Abridged Abridged

English English I952. I952. y, y, ul J London, London,

Observation. Observation.

of of

Methods Methods

and and

Session, Session, First First the the of of Report Report

9 9 Instruments Instruments

for for

RP. RP. . . I9 Commission Commission

Final Final Abridged Abridged teorology. teorology.

frs. frs. Sw. Sw. : :

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French. French.

Me­ Maritime Maritime for for

Commission Commission - 2

RP. RP. ro. ro.

English­ I953· I953· September, September,

August­ Toronto, Toronto, Session, Session, First First sale. sale. for for Not Not WMO. WMO.

the the of of Report Report Final Final Abridged Abridged the the of of General General - Secretary

s s Aerology. Aerology.

for for Commission Commission the the RP. RP. of of IS. IS. I95I I95I for for Report Report Annual Annual RP. RP. · · 7 - I I

No. No. WMO- No. No. WMO-

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edition. edition. Ist Ist French). French). and and Technical Technical hydrometeors. hydrometeors. and and

(English (English Bilingual Bilingual - Europe Europe clouds clouds of of control control Artificial Artificial I9 I9 TP. TP. 50. 50.

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VI VI Region Region - Networks Networks I0.- frs. frs. Sw. Sw. Price: Price: I956. I956. . . Ed

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Observing Observing orological orological French). French). and and (English (English lingual lingual

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Charts Charts Regional Regional - 22 22 TP. TP. 56. 56. Bi­ ships. ships. supplementary supplementary and and

selected selected of of list list International International - IS IS TP. TP. · · 47

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: : Price Price

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En­

16. 16.

No. No.

Note Note

Technical Technical

En­ 12. 12. No. No. Note Note

Technical Technical

air. air. upper upper

the the in in rate rate

lapse lapse

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Superadiabatic Superadiabatic 15. 15. No. No. Note Note

z.- fr. fr. Sw. Sw. : : Price Price l l Technica . . criteria mance mance

summaries. summaries. perfor­ to to relation relation in in winds winds

Spanish Spanish - Russian Russian - French French measured measured - contour and and wins wins

English. English. . . I I I No. No. Note Note nical nical ra­ of of accuracy accuracy relative relative The The

Tech­ - Factor Factor Climatic Climatic a a as as Russian. Russian. - Spanish Spanish - ish ish l Eng

Evaporation Evaporation of of Measurement Measurement French­ I4. I4. No. No. Note Note l l nica

the the of of Standardization Standardization The The Tech­ radiosondages. radiosondages. de de peen peen

IO. IO. No. No. Note Note Technical Technical Pests- euro­ reseau reseau du du Homogeneite Homogeneite - 20 20 TP. TP. 51. 51.

and and Diseases Diseases Plant Plant other other

frs. frs. . . Sw - J. : : Price Price maries. maries. and and Blight Blight Potato Potato of of Data Data

sum­ Spanish Spanish - Russian Russian - Veather Veather \ from from Forecasting Forecasting The The - I6 I6 TP. TP. . . 42

No. No. WMO- -No. -No. WMO WMO

57 57 9 1 l l i r Ap n n ulleti B WMO WMO

76 76

* *

On On

I I April April I957 I957 and and N N yasaland yasaland New New Caledonia Caledonia

Federation Federation of of Rhodesia Netherlands Netherlands New New Guinea Guinea Yugoslavia Yugoslavia

Ethiopia Ethiopia Netherlands Netherlands Antilles Antilles Viet-Nam Viet-Nam

El El Salvador Salvador Netherlands Netherlands Venezuela Venezuela

Egypt Morocco Uruguay Uruguay

Ecuador Ecuador

Mexico Mexico United United States States of of America America

Dominican Dominican Republic Republic Madagascar Madagascar Ireland Ireland

Denmark Denmark

Luxembourg Luxembourg Britain Britain and and Northern Northern

Czechoslovakia Czechoslovakia

Libya Libya United United Kingdom Kingdom of of Great Great

Cuba Cuba Lebanon Lebanon Republics Republics

China China

Laos Laos Union Union of of Soviet Soviet Socialist Socialist

Ceylon Ceylon

Korea Korea Union Union of of South South Africa Africa

Canada Canada

Jordan Jordan Ukrainian Ukrainian S.S.R. S.S.R.

Cambodia Cambodia Japan Japan Turkey Turkey

Byeiorussian Byeiorussian S.S.R. S.S.R. Italy Italy Tunisia

Burma Burma Israel Israel Thailand Thailand

Bulgaria Bulgaria Ireland Ireland Syria Syria

Territories Territories Iraq Iraq Switzerland Switzerland

British British West West African African Indonesia Indonesia Sweden Sweden

Territories Territories India India Surinam Surinam

British British Malaya/Borneo Malaya/Borneo Iceland Iceland Sudan Sudan

Ocean Ocean Islands Islands Hungary Hungary Guinea Guinea

Territories Territories

and and Indian Indian Hong Hong Kong Kong Spanish Spanish Territories Territories of of

British British East East African African Haiti Haiti Spain Spain

Territories Territories Guatemala Guatemala Romania Romania

British British

Caribbean Caribbean Greece Greece Portuguese Portuguese West West Africa Africa

Brazil Brazil

French French West West Africa Africa Portuguese Portuguese East East Africa Africa

Bolivia Bolivia French French Togoland Togoland Portugal Portugal

Bermuda Bermuda French French Somaliland Somaliland Poland Poland

Belgium Belgium French French Oceania Oceania Philippines Philippines

Belgian Belgian Congo Congo French French Equatorial Equatorial Africa Africa Peru Peru

Austria Austria French French Cameroons Cameroons Paraguay Paraguay

Australia Australia France France Pakistan Pakistan

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Afghanistan Afghanistan Federal Federal Repub. Repub. of of Germany Germany New New Zealand Zealand

MEMBERS MEMBERS OF OF THE THE WORLD WORLD METEOROLOGICAL METEOROLOGICAL * * ORGANIZATION ORGANIZATION

since since

the the

First First

Session Session (June (June N N at at for for sale. sale.

Recommendations Recommendations adopted adopted I956. I956. English English - French. French.

(Europe), (Europe),

Resolutions Resolutions and and 57· 57· RP. RP. 22 22 - Annual Annual Report Report of of

the the WMO, WMO,

37· 37· RP. RP.

I7 I7 -

Regional Regional

Association Association

VI VI Price Price : : Sw. Sw. frs. frs. J.-

lish lish - French. French. Price Price : : Sw. Sw. frs. frs. 9·-

brovnik, brovnik, March, March, Volume Volume 1956. 1956. II, II, Eng­

of of the the Second Second Price Price Session, Session, : : Sw. Sw. frs. frs. Du­ J.­

rope). rope). Abridged Abridged Volume Volume Final Final I, I, Report Report

54· 54· RP. RP. 2I 2I - Regional Regional Association Association English- VI VI (Eu­ French. French.

Montreal, Montreal, June-July, June-July, Not Not for for sale. sale. I954· I954·

I955· I955· English- French. French. Report Report of of the the First First Session, Session,

52. 52. RP. RP. 20 20 - Annual Annual Report Report Meteorology. Meteorology. of of the the WMO, WMO, Abridged Abridged Final Final

33· 33· French. French. RP. RP. I6 I6 Price: Price: - Commission Commission Sw. Sw. frs. frs. for for Aeronautical Aeronautical J.-

February, February,

1955. 1955.

English English

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French. French. Price Price : : Sw. Sw.

frs. frs.

J.-

First First Session, Session,

New New

Delhi, Delhi, December, December, I953· I953·

English­

Abridged Abridged Final Final

Report Report

of of the the

Session, Session,

Paris, Paris,

November­

43. 43. RP. RP. 19 19 - Regional Regional Association Association

II II (Asia). (Asia).

Final Final Report Report

of of

the the First First

Not Not

for for

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and and

Publications. Publications.

Abridged Abridged

I954· I954· English English

-

French. French.

31. 31.

RP. RP.

IS IS

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Commission Commission

for for Bibliography Bibliography

41. 41. RP. RP. r8 r8 - Annual Annual Report Report of of the the WMO WMO

Not Not

for for sale. sale.

Price Price

: : Sw. Sw.

fr. fr.

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I953· I953· English English

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glish glish

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29. 29. RP. RP.

14 14

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Annual Annual Report Report

o! o! the the WMO WMO I952 I952 - December December I954)· I954)· En­

WMO WMO -No. -No. WMO- No. No.

WMO WMO

Bulletin Bulletin April April 1957 1957 WMO Bulletin April 1957

IICAO rscussroNs continue regarding ar­ meteorological charts, it has adopted a D rangements for the joint WMO/ new question for study confining its ICAO meeting on meteorological tele­ scope to meteorological charts only. communications in Europe (see Bul­ Experiments in using the + sign in the letin, Vol. VI, No. r, p. 38). The main body of meteorological telegrams had recent development is the decision of brought to light certain difficulties ICAO not to hold the meeting in June which require further study of the 1957 as originally planned but to post­ problem by the Commission for Syn­ pone it until the beginning of 1958. optic Meteorology. The question has This change in the initial plans has not therefore been withdrawn provision­ affected the date of the proposed ally from the CCIT. meeting of the Working Group on Meteorological Transmissions in Eu­ rope, which will be held in April 1957 UN (seep. 8o). HE decision of the 2rst session of Some other items on which WMO is the United Nations Economic and collaborating with ICAO are mentioned T Social Council (ECOSOC) to recom­ on p. 8o. mend the constitution of a panel of world renowned experts to review and ITU (CCIT) advise on the economic and social aspects of integrated river-basin devel­ HE International Telephone Con­ opment was reported in the October T sultative Committee (CCIT) of 'r956 number of the WMO Bulletin the International Telecommunication (Vol. V, No. 4, p. 139). The first Union held its VIIIth plenary assembly meeting of this panel was held in New from 8 to 22 December 1956 in Geneva. York from 7 to 12 ] anuary 1957 under WMO was represented by Mr. V. Sun­ the chairmanship of Professor Gilbert daram, telecommunications expert in E. White. The WMO was represented the Secretariat. Among the matters of for the first two days of the meeting by interest to WMO that were considered, Dr. K. Langlo, chief of the Technical were the characteristics of facsimile Division of the WMO Secretariat. apparatus to be used for the transmis­ sion of meteorological charts, and the use of the + sign for indicating missing The principal task of the panel was characters in meteorological telegrams. to draw up an outline of the report The plenary assembly has now forward­ which it will submit, in accordance ed its comments on the characteristics with the ECOSOC resolution, after a of facsimile apparatus proposed by the second and final meeting in November WMO. As the CCIT has at present no 1957. The panel agreed to draft, with deman:d for the transmission by fac­ the aid of the UN Secretariat and the simile of large documents other than specialized agencies, a report which

77

7 8 8

the the various various facilities facilities that that have have been been almost almost unanimous l y y to to re - adopt adopt several several

to to their their quality quality and and adequacy; adequacy; use use of of ruary ruary 1957, 1957, the the association association dec i ded ded

broadcasts broadcasts on on the the African African contin e nt nt as as tion tion II II (Asia), (Asia), which which closed closed on on r8 r8 Feb­

B

were were a a re-examination re-examination of of the the existing existing president president of of Regional Regional Associa­

I957· I957· Among Among the the it e ms ms considered considered a a postal postal ballot ballot initiated initiated by by the the Y Y

Las Las Palmas, Palmas, from from ro ro to to r8 r8 January January

A S IA IA

sociation sociation I I held held its its third third session, also also session, at at

ca l l Telecommunications Telecommunications of of Regional Regional As­

Th e e Working Working Group Group on on Meteorologi­ tion tion I. I.

second second session session of of Regional Regional Associa ­

report report of of th e e session session appears appears on on p . . 53· 53· this this me e ting ting were were presented presented at at the the

zr zr January January to to g g February February I957· I957· A A lems lems of of th e e Region. Region. Th e e results results of of

. . Las Las Palmas, Palmas, Canary Canary Islands, Islands, from from

other other technical technical and and operational operational prob­

T

Association Association I I (Africa) (Africa) was was held held at at telecommunications telecommunications procedures procedures and and

s ec ond ond session session of of Regional Regional introduced introduced HE HE recently recently in in the the Region Region ; ;

AFRICA AFRICA

tries. tries. logical logical journa l s. s.

particularly particularly in in under-d eve loped loped coun­ ial ial to to be be found found in in som e e non-meteoro ­

account account in in implem e nting nting such such schemes, schemes, rath e r r than than on on the the controversial controversial mater­

social social implications implications to to be be tak e n n into into based based on on r ece nt nt climatological climatological studies studies

serve serve as as a a guide guide to to the the economic economic and and ing ing that that the the technical technical note note should should be be

report report emerging emerging from from its its work work would would proposal proposal of of the the UN UN panel, panel, recommend­

purpos es . . The The panel panel hop e d d that that the the subsequently subsequently decided decided to to support support the the

power power for for domestic domestic and and industrial industrial The The second second session session of of the the commission commission

ways ways and and the the production production of of e l ec tric tric

the the d eve lopment lopment of of navigable navigable water­ about about to to meet meet in in Washington. Washington.

by by irrigation, irrigation, flood flood protection protection projects, projects, mission mission for for C l imatology, imatology, which which was was

ditions ditions of of the the inhabitants inhabitants of of the the region region brought brought to to the the attention attention of of the the Com­

to to improve improve materially materially the the living living con­ suggested suggested that that the the matter matter should should be be

lished. lished. Th ese ese schemes schemes will will endeavour endeavour of of precipitation. precipitation. The The WMO WMO observer observer

the the regional regional economy economy is is to to b e e esta b­ nical nical Note Note No . . Arti(ic1:at Arti(ic1:at in ducement ducement I I : :

developm e nt nt programme programme to to improve improve be be pr epa red red on on similar similar lines lines to to T T ech­

basin basin is is treated treated as as the the unit unit for for which which a a was was proposed proposed It It that that a a report report should should

water water schemes schemes in in which which the the riv e r­ ments ments (irrigation, (irrigation, drainage, drainage, dams, dams, etc.). etc.).

rests rests on on th e e planning planning of of multi-purpos e e change change induced induced by by wat e r r develop­

int egra t e d d river-basin river-basin developm e nt nt preparing preparing a a technical technical report report on on climatic climatic

ered ered in in any any detail. detail. The The concept concept of of to to explore explore the the possibility possibility of of WMO WMO

basin basin d eve lopment lopment will will not not be be consid­ opment, opment, Dr. Dr. Langlo Langlo was was formally formally asked asked

technical technical aspects aspects of of integrated integrated river­ WMO WMO Panel Panel on on Water Water Resource Resource Devel­

development. development. Th e e engineering engineering and and various various projects projects recommended recommended by by the the

and and political political aspects aspects of of water water resourc es es of of WMO WMO in in the the subject subject and and referring referring to to

will will concentrate concentrate on on the the social, social, economic economic After After explaining explaining the the general general interest interest

WMO WMO Bu ll etin etin April April 1957 1957

79 79

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ca­ modifi necessary necessary any any of of Secretariat Secretariat Year. Year. Geophysical Geophysical ional ional at rn e Int e e th

the the inform inform to to and and given given n n o ti a inform during during out out carried carried e e b to to observations observations

the the check check to to asked asked are are who who d d e rn e conc aerological aerological the the of of tion tion es qu nt nt a import

Members Members e e th to to distributed distributed n n ee b e e th concerns concerns VI, VI, RA RA of of president president

have have charts charts ese ese th association, association, e e th the the of of by by ed ed initiat inquiry, inquiry, second second A A . . ges

esire esire d expressed expressed the the h h wit accordance accordance in in ­ n a h exc l l ogica l eoro met international international in in

and, and,

ll ll RA RA of of quest quest e r a a to to tion tion ac tisf sa included included e e b hould hould s

N N 6o of of north north g g in

0

partial partial ve ve i o g o t e e ibl ss po n n ee b has has it it way way operat­ and and Europe Europe in in d d egistere r s l vesse

s s thi In In Asia. Asia. of of part part ern ern uth so the the g g in sh fi from from s s rt o rep l l ca i olog r eteo m

for for s s rk etwo n tion tion sta observing observing l l a of of logic r r e numb possible possible t t es t grea e e th t t a th

ro­ eo t e m of of charts charts e e th complete complete to to nsuring nsuring e at at aimed aimed is is VI), VI), RA RA - (ll 8 8 r

Secretariat Secretariat e e th led led ab n e as as h O O CA I of of ing ing lution lution eso r from from resulting resulting ese, ese, th of of e e On

eet­ m Navigation Navigation Air Air l l a n egio R EUMED EUMED (Europe). (Europe). VI VI iation iation Assoc l l a ion eg R

S fourth fourth the the of of postponement postponement e e Th of of rs rs e Memb by by considered considered ng ng ei b

nt nt ese pr at at re re a inquiries inquiries AL AL EVER

. . n egio R the the

EUROPE EUROPE

of of services services cal cal rologi eo t e m of of number number

y a a y b collected collected statistics statistics includes includes report report

This This flight. flight. in in aircraft aircraft from from tions tions

ballot. ballot. postal postal

observa­ l l ogica rol eo t e m of of ion ion eg R the the

a a of of subject subject e e th are are ved, ved, i ece r were were

within within e e mad use use the the concerning concerning tion tion

comments comments ral ral seve which which concerning concerning

­ ssocia a e e th of of Members Members to to d d e distribut

tions, tions, a mmend eco r two two maining maining e r e e Th

nd nd a prepared prepared was was port port e r a a ll, ll, RA RA

. . Members from from ived ived ece r were were nts nts e m

of of president president e e th of of request request the the At At

m­ co adverse adverse no no hich hich w on on mendations mendations

m­ eco r ese ese th

to to d d

e

limit

was was

action action

s s thi

. . hts g fli nce nce ssa reconnai

IV; IV; RA RA of of

olutions olutions

es r

as as

Committee Committee

meteorological meteorological for for need need the the nd nd a ships, ships,

e e n ca

Hurri n n ea Caribb

Eastern Eastern e e

th of of

n n o observations observations ll ll a rainf gy, gy, orolo e t

ion ion sess

fourth fourth e e

th

of of

ns ns

atio

nd

e m

ecom r

­ e m agricultural agricultural s, s, r e t ecas for for for s s flight

the the of of y y jorit a m e e th

dopt dopt a to to ion, ion,

eg R

familiarization familiarization observations, observations, per-air per-air

the the

f f o Members Members with with

consultation consultation

er er ft a

up­ telecommunications, telecommunications, ical ical g rolo eo met

and and of of

alf alf beh

on on

ed, ed, id ec d

has has

America) America)

of of pects pects as certain certain concern concern s s

olution

T ral ral

Cent

nd nd a

(North (North IV IV

tion tion

­ es r ese ese Th . .

Organization l l gica Meteorolo

Associa­

ional ional

eg R

of of

nt nt e presid

HE HE

International International the the of of ll ll Commission Commission

nal nal egio R r e form the the of of resolutions resolutions AMERICA AMERICA CENTRAL CENTRAL AND AND NORTH NORTH

1957 1957 April April Bulletin Bulletin WMO WMO

80 80

of of

participants participants in in the the very very near near future. future. charts charts included included in in flight flight forecast forecast

of of

documents documents should should be be in in the the hands hands Projections Projections and and scales scales of of weather weather

uted uted in in February February and and the the first first batch batch flight flight forecast forecast forms forms

oranda oranda

for for the the sessions sessions were were distrib­ Representation Representation of of ground ground profiles profiles on on

The The agenda agenda and and explanatory explanatory mem­ AFTN AFTN channels channels

messages messages meteorological

carried carried

over over

and and various various

other other related related

matters. matters.

Downgrading Downgrading

and/or and/or

cancellation cancellation of of

of of the the meetings, meetings,

the the

documentation documentation

ments ments relate relate

to to the the

following following

subjects: subjects:

14 14 March March to to

discuss discuss

the the organization organization

tion tion (ICAO). (ICAO).

The The remaining remaining

amend­

WMO WMO Secretariat Secretariat

between between 12 12

and and

International International

Civil Civil

Aviation Aviation

Organiza­

ghem ghem and and Mr. Mr.

A. A.

Perlat, Perlat,

visited visited

the the

Third Third Air Air

Navigation Navigation

Conference Conference

of of the the

of of the the commissions, commissions, J. J.

Dr. Dr. Van Van

Mie­

of of operational operational

control control

developed developed

at at the the

now now well well under under

way. way. The The

presidents presidents

amendments amendments

is is a a result result

of of

the the concept concept

to to open open in in Paris Paris on on 18 18 June June

1957, 1957,

are are

sidered. sidered.

The The

most most

important important

of of these these

ments ments and and Methods Methods

of of Observation, Observation,

due due

navigation, navigation,

are are

at at

present present

being being con­

logy logy and and

the the Commission Commission

for for Instru­

P logical logical services services

for for

international international

air air

sions sions of of the the

Commission Commission

for for

Aero­

Regulations, Regulations, which which

deals deals

with with

meteoro­

REPARATIONS REPARATIONS

for for

the the

second second

ses­

S

ter ter 12 12 of of the the WMO WMO Technical Technical

OBSERVATION OBSERVATION proposed proposed amendments amendments OME OME to to Chap­

INSTRUMENTS INSTRUMENTS AND AND METHODS METHODS OF OF

AERONAUTICAL AERONAUTICAL

METEOROLOGY METEOROLOGY

AEROLOGY AEROLOGY

and and the the use use of of radar radar in in meteorology. meteorology.

tember tember or or October October 1958. 1958. fusion fusion in in the the atmosphere, atmosphere, actinometry, actinometry,

tural tural Meteorology Meteorology

in in Warsaw Warsaw in in Sep­ above above the the mb mb level, level, turbulent turbulent 100 100 dif­

session session of of the the Commission Commission for for Agricul­ be be dynamic dynamic and and physical physical processes processes

being being made made for for convening convening the the second second the the sessions. sessions. The The principal principal topics topics will will

fi fi

Government, Government, arrangements arrangements are are sions sions will will be be held held in in conjunction conjunction with with

J\ J\

the the invitation invitation T T of of the the Polish Polish Some Some scientific scientific lectures lectures and and discus­

AGRICULTURAL AGRICULTURAL METEOROLOGY METEOROLOGY

1957. 1957. The The object object of of this this meeting meeting is is to to data. data.

the the

Netherlands, Netherlands, from from 12 12 to to 19 19 April April requirements requirements for for the the exchange exchange of of these these

tion tion of of the the Meteorological Meteorological Service Service of of on on the the basis basis of of existing existing and and anticipated anticipated

working working

group group in in Utrecht, Utrecht, by by invita­ the the meeting meeting will will be be able able to to make make plans plans

convene convene

the the third third meeting meeting of of the the within within the the Region. Region. is is It It hoped hoped that that

of of the the association, association, has has decided decided to to exchange exchange of of basic basic meteorological meteorological data data

sions, sions,

in in agreement agreement with with the the president president prepared prepared a a preliminary preliminary report report on on the the

Group Group on on Meteorological Meteorological Transmis­ Bulletin, Bulletin, the the working working group group has has already already

The The

chairman chairman of of the the RA RA VI VI Working Working indicated indicated in in the the last last number number of of the the

beginning beginning of of 1958 1958 (see (see p. p. 77). 77). As As

tions. tions.

in in Europe, Europe, which which will will be be held held at at the the

radiosonde radiosonde and and radiowind radiowind observa­ ICAO ICAO meeting meeting on on telecommunications telecommunications

concerning concerning

the the altitudes altitudes attained attained during during make make preparations preparations for for the the joint joint WMO/ WMO/

WMO WMO Bulletin Bulletin

April April 1957 1957

81 81

form. form. coded coded a a in in shipping shipping for for On On tins tins observations. observations. upper-air upper-air of of times times

bulle­ weather weather broadcasting broadcasting of of bility bility standard standard the the in in change change a a concerning concerning

possi­ the the and and stations stations weather weather ocean ocean Meteorology Meteorology Synoptic Synoptic for for Commission Commission

from from reports reports supplementary supplementary radar, radar, the the of of recommendation recommendation the the Committee Committee

T

ground ground by by made made observations observations logical logical Executive Executive the the of of behalf behalf on on ed ed

meteoro­ for for code code a a Year, Year, Geophysical Geophysical approv­ has has WMO WMO of of President President HE HE

International International the the during during ships ships by by

METEOROLOGY METEOROLOGY made made SYNOPTIC SYNOPTIC observations observations surface surface transmitting transmitting

for for form form short short a a include include studied studied being being

now now questions questions important important other other The The

Year. Year. Geophysical Geophysical International International

the the to to relating relating those those to to attention attention

substantial. substantial. very very already already is is which which

particular particular with with session, session, second second the the of of

agenda agenda the the of of draft draft first first a a Secretariat, Secretariat,

decisions decisions the the on on action action follow-up follow-up initial initial

the the with with collaboration collaboration in in preparing, preparing,

the the

take take to to been been has has Meteorology Meteorology

is is CSM CSM of of president president the the step step first first a a As As T

Maritime Maritime for for Commission Commission the the of of

commission. commission. the the of of session session second second the the

field field the the in in activity activity principal principal

HE HE

for for way way under under also also are are Preparations Preparations

METEOROLOGY METEOROLOGY MARITIME MARITIME

CSM. CSM. of of session session second second

the the before before well well framed framed mendations mendations

attention. attention. for for recom­ its its and and studied studied be be may may lems lems

bodies bodies constituent constituent other other to to referred referred prob­ telecommunication telecommunication the the that that so so

being being are are CCl CCl by by raised raised questions questions October October in in meeting meeting a a holding holding of of sibility sibility

the the of of Some Some groups. groups. working working new new the the pos­ the the examining examining is is communications communications

establishing establishing for for formalities formalities necessary necessary Tele­ on on Group Group Working Working CSM CSM The The

the the out out carrying carrying and and session session the the

of of report report final final abridged abridged the the preparing preparing

code. code. tional tional now now is is Secretariat Secretariat the the CCl, CCl, of of president president

interna­ the the about about taken taken been been has has sion sion the the with with collaboration collaboration In In I957· I957· uary uary

deci­ final final a a until until force force in in remain remain will will Jan­ in in Washington Washington in in session session second second

A

arrangement arrangement This This aircraft. aircraft. naissance naissance its its held held Climatology Climatology for for sion sion

recon­ by by observed observed sea sea at at ice ice cerning cerning Commis­ the the 59, 59, p. p. on on reported reported s s

con­ information information transmitting transmitting for for form form

code code States States United United existing existing the the use use CLIMATOLOGY CLIMATOLOGY

to to Members Members for for provides provides which which tion tion

recommenda­ CSM CSM another another approved approved

also also has has WMO WMO of of President President The The

examined. examined. being being

are are amendments amendments proposed proposed the the when when

ICAO ICAO at at WMO WMO represent represent will will who who 1957. 1957. June June I I from from times times new new the the

commission commission the the of of president president the the to to introduce introduce to to decided decided consultation, consultation, eral eral

comments comments their their submit submit to to them them enable enable bilat­ a a after after which, which, America America of of States States

to to amendments amendments proposed proposed these these of of tified tified United United the the and and Canada Canada were were exceptions exceptions

no­ been been have have Meteorology Meteorology nautical nautical main main the the ; ; I957 I957 April April I I on on times times new new

Aero­ for for Commission Commission the the of of Members Members the the introduce introduce to to proposed proposed they they that that

indicated indicated have have subject subject this this on on inquiry inquiry

Secretariat Secretariat the the to to replied replied have have which which reports. reports. ditching ditching in in

services services meteorological meteorological the the of of Most Most sea sea of of state state and and swell swell of of Reporting Reporting

GMT. GMT. I8oo I8oo and and rzoo rzoo o6oo, o6oo, oooo, oooo, came came charts charts such such

be­ therefore therefore times times these these I957 I957 April April I I on on drawn drawn isohypses isohypses the the and and folders folders

1957 1957 April April Bulletin Bulletin WMO WMO

82 82

frosts frosts for for three three months months of of the the year. year. qu e ncies ncies of of maximum maximum and and minimum minimum

rasset rasset m) m) and and (1,400 (1,400 almost almost nightly nightly a a graphic graphic device device to to represent represent fre­

the the regular regular Saharan Saharan station station of of Taman­ analysis analysis : a a : new new technique technique described described

two two and and one-half one-half times times as as great great as as at at Kingdom) Kingdom) in in Temperature Temperature and and humidity humidity

Ahaggar, Ahaggar, showing showing precipitation precipitation nearly nearly eight eight inches. inches. Monica Monica Mary Mary Cole Cole (United (United

from from Asekrem Asekrem at at metres metres in in 2,700 2,700 the the from from the the ground ground surface surface to to a a d e pth pth of of

reported reported a a pion ee r r two-year two-year record record dig dig an an Bay, Bay, Wales Wales presented presented results results

l e e climat climat de de montagne montagne au au Sahara Sahara central central tion tion to to aspect aspect on on coastal coastal slopes slopes in in Car­

R ey ey (Algeria), (Algeria), in in Donnees Donnees nouvelles nouvelles sur sur Variations Variations in in soil soil temperature temperature in in rela­

Jordan Jordan Valley Valley types). types). Robert Robert Capot­ J. J. wide wide forces. forces. A. A. Taylor Taylor (Wales) (Wales) in in

aridity aridity in in Palestine Palestine (the (the Neg ev ev and and where where indicating indicating the the play play of of world­

(Israel) (Israel) spoke spoke on on T w o o types types of of border border correspondence correspondence of of fluctuations fluctuations every­

oth e r r dry dry lands. lands. D. D. H. H. K. K. Amiran Amiran concluded concluded that that there there is is a a gene r a l l

Five Five papers papers treated treated climatology climatology of of Fluct~tations Fluct~tations of of glaciers glaciers in in the the Alps Alps

gradients . . Hanz Hanz Kinzl Kinzl (Austria) (Austria) in in

eastern eastern Brazil. Brazil. characteristics characteristics of of r eg ional ional and and seasona l l

Solar Solar activity activity and and rainfall rainfall in in south­ regions regions of of the the w orld orld d esc ribed ribed the the

and and Sampaio Sampaio Ferraz Ferraz (Brazil) (Brazil) discussed discussed decrease decrease w ith ith altitude altitude in in the the diff ere nt nt

ditions ditions in in the the Distrito Distrito Federal, Federal, Brazil, Brazil, march march of of the the rates rates of of temperature temperature

Faissol Faissol (Brazil) (Brazil) d es cribed cribed Climatic Climatic con­ Laut ensac h h (Germany) (Germany) in in The The annual annual

generally generally sem i-arid i-arid r egion. egion. Speridiao Speridiao criterion criterion for for clas s ification. ification. Hermann Hermann

thwaite thwaite index index as as low low as as -44.5) -44.5) in in the the the the duration duration of of th e e rainy rainy season season as as the the

found found a a node node of of desert desert climate climate (Thorn­ delineation delineation of of tropical tropical cl imates imates stressed stressed

aridity aridity in in north-eastern north-eastern Brazil. Brazil. Webb Webb lem s s of of subclassification subclassification and and methods methods of of

Maio Maio (Brazil) (Brazil) in in Map Map of of the the index index results. results. of of W . . Lauer Lauer (Germany) (Germany) in in Prob­

th waite waite system, system, and and by by Celeste Celeste Rodrigues Rodrigues was was believ e d d to to produc e e s i gnificant gnificant

north-east north-east Brazil Brazil according according to to the the Thorn­ stated stated that that seeding seeding with with water water spray spray

E . . Webb Webb (U.S.A.) (U.S.A.) in in The The climate climate Puerto Puerto of of Rico Rico by by means means of of cloud cloud seeding seeding

indices, indices, were were pr ese nt ed ed by by Kempton Kempton Po ssi bility bility of of initiating initiating rainfall rainfall in in

the the de de Martonne Martonne moisture moisture and and aridity aridity other other papers. papers. Leo Leo A lp ert ert (U.S.A.) (U.S.A.) in in

on on the the basis basis of of the the Thornthwaite Thornthwaite and and A A variety variety of of themes themes were were covered covered in in

the the dry dry r eg ion ion of of north - easte rn rn Brazil, Brazil,

of of Brazil. Brazil. Large-scale Large-scale climatic climatic maps maps the the of of Quaternary. Quaternary.

Four Four papers papers dealt dealt with with the the climate climate with with dry dry periods periods in in the the south south during during

periods periods in in the the north north tended tended to to coincide coincide

posium. posium. concluding concluding that that on on the the whole, whole, wet wet

other other sections sections and and in in a a general general sym­ arides arides au au nord nord et et au au sud sud du du Sahara, Sahara,

matology matology had had a a prominent prominent place place in in ed ed Correlation Correlation des des piriodes piriodes plu via les les et et

Miller Miller (England). (England). In In addition, addition, J. J. of of cli­ rainfall. rainfall. Tricart Tricart (France) (France) discuss­

Hanz Hanz Kinzl Kinzl (Austria) (Austria) and and A. A. Austin Austin including including the the year-to-year year-to-year variability variability

sessions, sessions, presided presided over over by by Prof esso rs rs (Iraq) (Iraq) described described The The climate climate of of Iraq, Iraq,

The The section section on on climatology climatology held held three three sub-types sub-types of of steppe. steppe. J J assim assim M. M. Khalaf Khalaf

held held at at Rio Rio de de Janeiro Janeiro in in August August rgs6. rgs6. phiqu es , , including including the the four four principal principal

Int e rnational rnational

Geographical Geographical Congress, Congress, l'U.R.S.S. l'U.R.S.S. et et leurs leurs analogues analogues geog ra­

C

by by papers papers at at th e e eighteenth eighteenth Re gions gions arides arides et et semi-arides semi-arides de de

was was LIMATOLOGY LIMATOLOGY well well repr ese nted nted P. P. I. I. Guerassimov Guerassimov (U.S.S.R.) (U.S.S.R.) analysed analysed

INTERNATIONAL INTERNATIONAL GEOGRAPHICAL GEOGRAPHICAL CONGRESS CONGRESS

WMO WMO Bulletin Bulletin April April 1957 1957

83 83

rritories. rritories. e T Member Member and and Morocco. Morocco. 22 22 of of e e torat ec Prot Spanish Spanish the the

States States Member Member as as h now now 72 72 WMO WMO nd nd a Morocco Morocco of of Protectorate Protectorate French French

e e th of of Territories Territories Member Member r r e form two two

iously. iously. ev pr as as Territory Territory Member Member a a the the of of replaces replaces r r e mb e M new new This This 1957. 1957.

d d ea inst 7 7 195 February February 21 21 on on WMO WMO of of February February on on WMO WMO of of State State 2 2 Member Member

State State Member Member a a ecame ecame b s s thu a a a a Tunisi became became thus thus Morocco Morocco vention. vention.

. . Convention the the of of 3(b) 3(b) e e Articl of of s s n Con­ sio the the of of 3(b) 3(b) Article Article of of provisions provisions

provi­ e e th er er und 1957, 1957, y y Januar 22 22 on on the the r r e und Washington, Washington, at at State State of of

Washington Washington t t a State State of of t t epartmen nt nt e D e e th Departm e e th h h wit Convention Convention ical ical

with with Convention Convention Meteorological Meteorological World World Meteorolog­ World World the the to to accession accession of of

O e e th to to accession accession of of nt nt e rum st nt nt in e an an instrum an an ited ited s po e d Empire Empire

deposited deposited Tunisia Tunisia of of m m gdo Sherifian Sherifian Kin e e e e th Th 1957 1957 y y Januar 3 3 N N

Tzmisia Tzmisia Morocco Morocco

WMO WMO OF OF MEMBERSHIP MEMBERSHIP

MEIGS MEIGS ; ; e e PEVERIL PEVERIL climat from from than than r r e rath minerals minerals

certain certain

of of absence absence and and age, age, drain of of

meteorologique. meteorologique. reseau reseau du du stations stations des des

ess ess poorn ess, ess, n e fin soil soil as as actors actors f such such

repartition repartition la la de de principes principes es es L : : binstein binstein

from from

results results world, world, the the of of parts parts other other

Ru­ . . E. E. S ; ; $tviometriques $tviometriques pl ariations ariations v

in in probably probably and and Brazil, Brazil, in in as as savann

des des probtemes probtemes les les et et eau eau l' l' de de culation culation

of of ibution ibution str di the the that that consensus consensus

cir­ La La Drozdov: Drozdov: . . A 0. 0. comprehensive; comprehensive;

the the

was was

It It discussion. discussion. general general by by ed ed

climatologie climatologie la la par par . . .R.S.S l'U de de arides arides

follow­

were were (Germany), (Germany), Troll Troll Carl Carl and and

extra­ et et arides arides regions regions des des climat climat du du

(Germany) (Germany) eck eck Hu Kurt Kurt (Brazil), (Brazil), Arens Arens

etude etude L' L' Tchouboukov: Tchouboukov: A. A. et et L. L. Feldman Feldman

Karl Karl

by by

presented presented s s r e Pap regions. regions.

A. A. ; ; I. I. humides humides et et arides arides regions regions les les

ical ical trop in in Campos Campos the the of of problem problem

entre entre es es frontier des des sement sement tablis ' e ' l our our p

The The : : morning morning a a ed ed devot Congress Congress

rate rate gene atmospherique atmospherique lation lation ircu c la la

the the

which which

to to

symposium symposium general general a a

de de analyse analyse d' d' e e Rol : : ky ky eevs Dzerdz B. B. L. L.

into into significantly significantly d d e r ente Climatology Climatology

aridite; aridite; d' d' climatiques climatiques ndices ndices I : : dyko dyko

Bou­ M. M. ; ; I. I. limitrophes limitrophes contrees contrees es es l et et

a. a. t a d

climatic climatic standard standard of of distributions distributions

tropicaux tropicaux pays pays es es l dans dans atmosphiriques atmosphiriques

y y b e e lainabl exp not not was was and and es, es, mass

precipitations precipitations des des repartition repartition la la de de

ir ir

a

antarctic antarctic polar polar by by hed hed eac r regions regions

ritis ritis icula t ar p s s Quelque : : vanov vanov I I N. N. N. N.

to to ed ed limit was was anophelines anophelines szia szia Kerte

climats; climats; des des classification classification de de bteme bteme

of of distribution distribution the the that that found found problem problem

pro­ et et dynamique dynamique Climatologie Climatologie mov: mov:

-Malaria -Malaria elia Brom the the of of aspects aspects Climatic Climatic

Khro­ P. P. S. S. s: s: follow as as climatology, climatology, on on

in in (Brazil) (Brazil) Aragao Aragao B. B. Mario Mario ance. ance.

papers papers ditional ditional ad seven seven and and , , n egatio l e d

bal­ tter tter e b into into network network Mexican Mexican the the

the the of of mbers mbers e m y y b d e t esen pr rs rs e pap

bring bring to to proposals proposals e e mad stations stations ical ical

the the all all of of text text full full the the included included this this

meteorolog­ of of rk rk netwo a a up up setting setting for for

; ; 1956) 1956) ad, ad, eningr u-L sco Mo ., ., .S l'U.R.S

erion erion crit Geographical Geographical in in ico) ico) ex (M lay lay e C

de de es es Scienc es es d Academie Academie de de 1' 1' (Editions (Editions

Lebrija Lebrija Manuel Manuel nd nd a Batalla Batalla Bassols Bassols

geographie geographie de de Essais Essais Congress, Congress, the the for for

Angel Angel utilization. utilization. nd nd a l effective effective more more

specially specially French French in in published published book book a a

ate ate facilit to to microclimates microclimates ameliorate ameliorate to to

contributed contributed delegation delegation S.S.R. S.S.R. . U The The

U.S.S.R. U.S.S.R. e e th in in used used ns ns ea m various various the the

d d e discuss anthropogenes anthropogenes facteurs facteurs s s le par par

fires. fires. man-made man-made repeated repeated of of ult ult es r climat climat the the du du changement changement Le Le in in R.) R.) .S. (U.S

probably probably is is phase phase grassy grassy the the that that and and Davitaia Davitaia F. F. F. F. temperatures. temperatures. daily daily

1957 1957 April April Bulletin Bulletin WMO WMO

84 84

720, 720, ro8o, ro8o, r8oo. r8oo. The The three three kinds kinds of of spheric spheric processes processes (Professor (Professor F. F. M6LLER) M6LLER)

Radiation, Radiation, as as 3, 3, 5, 5, an an energy energy IO, IO, J, J, I5, I5, source source 30, 30, 60, 60, in in go, go, atmo­ 180, 180, 360, 360, 540, 540,

Mesometeorology Mesometeorology

(Professor (Professor H. H. BYERs) BYERs)

the the I2 I2 months months of of the the year year ; k k ; r, r, = = 2, 2,

CHARNEY) CHARNEY)

periods periods of of k k consecutive consecutive days days

through through

ical ical weather weather prediction prediction

(Professor (Professor J. J.

G. G.

tion tion of of the the total total rainfall rainfall amounts amounts in in Numerical Numerical and and graphical graphical methods methods of of dynam­

H. H. FLOHN) FLOHN) with with three three kinds kinds of of frequency frequency distribu­

Fronts, Fronts,

jet jet streams streams

and and air air masses masses (Professor (Professor

the the Netherlands. Netherlands. Each Each book book deals deals

SENs) SENs)

rainfall rainfall data data 24 24 of of selected selected stations stations

in in

Physics Physics and and dynamics dynamics

of of clouds clouds

(Dr. (Dr. H. H.

DEs­

of of valuable valuable information information about about the the PRIESTLEY) PRIESTLEY)

Diffusion Diffusion and and convection convection will will provide, provide, (Dr. (Dr. C. C. when when H. H. B. B. completed, completed, 24 24 books books

pollution pollution

(Professor (Professor C. C. G. G. RossBY) RossBY)

set set in in motion motion a a unique unique project, project,

which which

Atmospheric Atmospheric T chemistry, chemistry, radioactivity radioactivity and and

logical logical Institute Institute at at De De Bilt Bilt has has

HE HE Royal Royal Netherlands Netherlands Meteoro­ assembly: assembly:

which which will will take take place place during during the the

PERIOD PERIOD

RAINFALLS RAINFALLS

scientific scientific meetings meetings of of the the association association

FREQUENCY FREQUENCY

DISTRIBUTION DISTRIBUTION

OF OF K-DAY K-DAY

ed ed the the following following programme programme for for the the

logy, logy, Dr. Dr. C. C. R. R. Sutcliffe, Sutcliffe, has has announc­

International International Association Association of of Meteoro­

Territories. Territories.

tember tember I957· I957· The The Secretary Secretary of of the the

work work

of of

the the

British British

West West African African

Toronto, Toronto, Canada, Canada, from from 3 3 to to I4 I4 Sep­

participated participated

in in

WMO WMO

within within

the the

frame­

desy desy and and

Geophysics Geophysics will will be be held held in in

of of

the the Convention. Convention.

Up Up

to to

now now it it has has T

the the International International Union Union of of

Geo­

tion tion

under under

the the provisions provisions

of of Article Article

3(b) 3(b)

HE HE eleventh eleventh General General Assembly Assembly of of

to to the the World World Meteorological Meteorological Conven­

deposition deposition

of of an an instrument instrument of of accession accession

IUGG IUGG GENERAL GENERAL AssEMBLY AssEMBLY

become become a a Member Member of of WMO WMO on on the the

the the United United Nations Nations and and can can therefore therefore

Ghana Ghana has has just just become become a a Member Member of of

1953). 1953).

Africa. Africa.

(r88o-r953) (r88o-r953)

and and of of Hoofddorp Hoofddorp (r867-

is: is: P.O. P.O. Box Box 744, 744, Accra, Accra, Ghana, Ghana, West West

been been issued, issued, those those of of Winterswijk Winterswijk

vice. vice. The The address address of of the the new new service service

Two Two books books of of the the series series have have already already

services, services, became became an an independent independent ser­

British British West West African African meteorological meteorological

kind. kind. service service of of Ghana, Ghana, formerly formerly one one of of the the

all all 214 214 frequency frequency distributions distributions of of each each on on this this same same date date the the meteorological meteorological

frequencies. frequencies. Each Each book book contains contains in in name name of of Ghana, Ghana, on on 6 6 March March 1957, 1957, and and

frequency frequency distribution distribution with with exceedance exceedance of of

the the British British Commonwealth, Commonwealth, with with the the

T

tribution tribution and and a a cumulative cumulative percentage percentage became became an an independent independent member member

distributive distributive percentage percentage frequency frequency dis­ HE HE territory territory of of the the Gold Gold Coast Coast

k-day k-day period period rainfalls rainfalls per per interval, interval, a a

SERVICE SERVICE quency quency distribution distribution of of the the numbers numbers of of

A A NEW NEW INDEPENDENT INDEPENDENT METEOROLOGICAL METEOROLOGICAL distribution distribution are are a a distributive distributive fre­

WMO WMO Bulletin Bulletin April April 1957 1957

85 85

bodies. bodies. constituent constituent its its of of and and WMO WMO the the eteorologische eteorologische M M example example for for as as nals, nals,

of of composition composition the the concerns concerns z z Part Part jour­ meteorological meteorological of of series series valuable valuable

some some and and reprints reprints of of collection collection large large

organizations. organizations. international international

a a

books, books, meteorological meteorological classical classical tant tant

and and agencies agencies specialized specialized other other tions, tions,

impor­

many many contains contains library library This This

Na­ United United the the and and WMO WMO between between

projects projects co-operative· co-operative· and and relations relations WMO. WMO. the the to to

the the of of account account an an by by followed followed year, year, the the library library meteorological meteorological husband's husband's late late

during during activities activities Organization's Organization's the the

of of summary summary general general a a contains contains Part Part I I

library library Swoboda's Swoboda's Dr. Dr. late late the the from from

books books examining examining

(Secretary-General) (Secretary-General)

Council. Council. Social Social and and

Davies Davies A. A. D. D. Mr. Mr.

and and

Swoboda Swoboda

MmeM. MmeM.

Economic Economic the the by by study study particular particular

for for Nations Nations United United the the to to submit submit to to

required required is is he he which which Nations, Nations, United United

the the of of agency agency specialized specialized a a as as WMO WMO

of of work work the the on on report report annual annual the the

with with Organization Organization the the of of Members Members to to

submit submit to to required required is is Secretary-General Secretary-General

the the which which report report annual annual the the combines combines

publication publication this this years, years, previous previous in in As As

X+I39· X+I39· Pp. Pp. RP.zz. RP.zz.

57· 57· No. No. WMO- r956. r956. : : Report Report Annual Annual

PUBLICATIONS PUBLICATIONS WMO WMO RECENT RECENT

Organization. Organization.

the the of of behalf behalf on on Secretary-General Secretary-General the the

her her presented presented recently recently Swoboda, Swoboda, G. G. by by Dr. Dr. accepted accepted gratefully gratefully was was gift gift This This

WMO, WMO, of of Secretary-General Secretary-General

former former

I934· I934· Igi8-

eteorologie, eteorologie, M M men men

the the of of widow widow Swoboda, Swoboda, M. M. Mme Mme

mariti­ und und Hydrographie Hydrographie der der Annalen Annalen

and and I937, I937, I878- eteorologie, eteorologie,

M M fur fur schrijt schrijt LIBRARY LIBRARY

Zeit­

Osterreichische Osterreichische

formerly formerly

Zeitschrijt Zeitschrijt

SWOBODA'S SWOBODA'S Dr. Dr. OF OF WMO WMO TO TO GIFT GIFT

VASSY) VASSY)

earth. earth. the the of of balance balance water water E. E. (Professor (Professor thunderstorms thunderstorms of of tricity tricity

elec­ the the

especially especially electricity, electricity, Atmospheric Atmospheric the the be be will will subject subject the the which which at at graphy graphy

MIEGHEM) MIEGHEM)

Oceano­ Physical Physical of of

Association Association tional tional

J. J. Van Van (Professor (Professor problems problems circulation circulation

Interna­ the the and and Hydrology Hydrology general general Scientific Scientific and and synoptic synoptic : : meteorology meteorology Polar Polar

R. R.

K. K. RAMANATHAN) RAMANATHAN) of of Association Association

International International the the

with with

(Professor (Professor stratosphere stratosphere the the of of stituents stituents

meeting meeting

joint joint a a

be be

will also also will

There There

con­ trace trace other other and and vapour vapour water water Ozone, Ozone,

1957 1957 April April Bulletin Bulletin WMO WMO

86 86

French, French, English English and and Spanish Spanish Numerous Numerous for for use use other other projects projects undertaken undertaken

views views and and talks talks were were recorded recorded assembled assembled in in and and issued issued on on microcards . .

nale nale in in rg58 rg58 were were d eve lop e d . . Inter­ data data collected collected during during the the IGY IGY will will be be

Exposition Exposition U U niverselle niverselle et et I I nternatio Meteorological Meteorological ­ Data Data Centre Centre at at which which

for for th e e WMO WMO di sp lay lay at at th e e Brusse li l shment shment s s a t t th e e Secretariat Secretariat of of the the

work work of of WMO WMO was was prepared prepared a nd nd plans plans G eop hy s i ca Y l ea r r includ e d d th e e estab­

of of photo graphic graphic panels panels illu stra tin g g the the tion s s for for the the forthcoming forthcoming Int e rnational rnational

governmental governmental organizations . . A A se ri es es th e e staff staff of of the the Secretariat. Secretariat. Prepara­

national national p e riodicals riodicals and and through through non­ of of a a t e l eco mmunications mmunications specialist specialist to to

continued continued to to b e e disseminated disseminated through through been been possible possible through through the the appointment appointment

and and inform a tion tion concern in g g the the WMO WMO meteorological meteorological telecommunications telecommunications has has

for for th e e scientific scientific press press was was in a ugurated ugurated Gr ea t e r r attention attention to to the the questions questions of of

Atlas. Atlas. A A special special informati on on service service missions missions an d d the the Executive Executive Committee. Committee.

such such projects projects as as the the World World Climatic Climatic of of those those set set up up by by the the te ch nical nical com­

national national Geophysical Geophysical Year Year and and activities activities in in of of th ese ese working working gro up s, s, and and

meteorological meteorological programm e e of of the the Int e r­ of of the the report report summarizes summarizes th e e major major

countries countries are are also also taking taking part part in in the the at l ases ases etc . , , on on a a regional regional b as is . . Part Part 6 6

of of constitu e nt nt bodies bodies of of WMO WMO ; ; th ese ese to to st udy udy t e lecommunication s , , climatic climatic

were were invit e d d to to participate participate in in meetings meetings which which hav e e established established working working groups groups

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active active effect effect from from zo zo D ecembe r r rgsr. rgsr. tend e ncy ncy towards towards furth e t r ec hnical hnical

rg56 rg56 and and came came into into force force with with r etro nical nical ­ bodies bodies of of the the Organi za tion tion and and a a

the the Swiss Swiss Federal Federal Council Council on on ro ro June June incr ease ease in in th e e activities activities of of the the tech­

WMO WMO in in Switzerland, Switzerland, was was ratified ratified by by Th e e past past year year showed showed a a noti cea ble ble

WMO, WMO, governing governing the the l ega l l status status of of

agreement agreement between between

Switzerland Switzerland

and and

requirements requirements

for for rgs8. rgs8.

tries tries are are described described

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country country and and with with

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relations relations

with with the the

host host

r egiona l l associations associations and and directors directors of of

at at its its eighth eighth session session ; ; pr es idents idents of of

cedure cedure should should b e e applied. applied. drawn drawn up up by by the the Ex ec utive utive Committee Committee

the the

conditions conditions under under which which this this pro­ technical technical assistance assistance activities activities was was

tions tions adopted adopted by by Congress Congress establishing establishing by by the the Secretariat Secretariat when when planning planning

vote, vote, in in accordance accordance with with n ew ew r egu planned. planned. la­ The The procedure procedure to to be be followed followed

matters matters have have be e n n dealt dealt with with by by postal postal - further further regional regional projects projects are are being being

are are r ev i ewe d d in in Part Part 3· 3· Several Several urg e nt nt by by 56 56 participants participants from from r8 r8 countries countries

and and th e e regulations regulations of of the the Organization Organization nican nican Republic, Republic, which which was was attended attended

Questions Questions

concerning concerning the the Convention Convention bean bean Hurricane Hurricane Seminar Seminar in in the the Domi ­

the the first first r egi onal onal project project - the the Carib­

Following Following the the

successfu

l l outcome outcome

of of the the technical technical

commissions. commissions.

r8 r8 expert expert missions missions

and and

z6 z6

fellowships. fellowships.

mittee, mittee, the the

regional regional associations associations

and and

in in operation operation during during

rg56, rg56, involving involving

composition composition

of of the the

Executive Executive

Com­

Details Details are are given given

of of

the the programmes programmes

There There were were slight slight

changes changes

in in the the

Programme Programme

of of Technical Technical

Assistance. Assistance.

category category of of Territory Territory

to to

that that

of of State. State.

carried carried out out within within

the the

UN UN

Expanded Expanded

then then in in the the process process

of of

transfer transfer

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the the

ities ities in in the the

field field of of t echnical echnical

assistance assistance

z6 z6 Territories. Territories. Certain Certain

Members Members

were were

Part Part 5 5

of of

the the

report report

concerns concerns

activ­

to to 95, 95, of of which which 6g 6g were were States States and and

membership membership at at the the end end of of the the year year

ization ization during during 1956, 1956, bringing bringing the the total total Geneva Geneva and and Paris. Paris.

Three Three new new Members Members joined joined the the Organ­ by by the the UN UN radio radio services services in in New New York, York,

WMO WMO Bulletin Bulletin

April April 1957 1957

87 87

a a sing sing u ro7 ro7 : : r r of of scale scale a a on on drawn drawn which which t t a stations stations of of d d an stations), stations),

are are which which (Europe), (Europe), VI VI ion ion eg R for for radiowind radiowind and and radiosonde radiosonde (i.e. (i.e. stations stations

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working working of of s s list ; ; associations associations regional regional

con­ will will additions additions and and Amendments Amendments

e e th of of rs rs e Memb of of and and countries, countries,

Member Member of of lists lists represented; represented; was was WMO WMO

ely. ely. iv espect r

America America

which which at at 956 956 1 during during ld ld e h

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organ­ tional tional a intern of of s s

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Annexes Annexes

broad­ for for and and logy logy eoro t e m synoptic synoptic

for for transmissions transmissions the the on on sections sections these these Members. Members. to to distributed distributed

in in given given is is information information ; ; te e l comp been been have have g g buildin Secretariat Secretariat ew ew n the the

now now is is C C Volume Volume : : s s t epor r Weather Weather of of for for Proposals Proposals Centre. Centre. a a Dat logical logical

II II Chapter Chapter 1957), 1957), ary ary Janu Ill, Ill, ion ion eg R Meteoro­ IGY IGY the the and and Unit Unit Assistance Assistance

1956; 1956; e e Jun V, V, (Region (Region sections sections nal nal egio r hnical hnical ec T e e th of of use use the the for for rented rented were were

two two these these of of publication publication the the With With building building rby rby ea a n a in in offices offices retariat, retariat, ec S

the the by by occupied occupied nt nt ese pr at at modation modation

. . - 5. . . fr Sw. Sw. , , V- n n - 3. egio R fr. fr. Sw. Sw. accom­ the the to to addition addition In In 1951. 1951. since since

- Ill Ill n n egio R : : Price Price f. f. ea Loose-l ised ised ev r completely completely been been ave ave h which which

TP-4. TP-4. 9· 9· No. No. - WMO WMO . . ) schedules , , rules staff staff UN UN e e th ith ith e w e lin into into m m e th

Transmissions Transmissions If- (Chapter (Chapter missions missions bringing bringing to to view view a a with with begun begun was was

Trans­ Volume Volume - : : C C reports reports Weather Weather es es rul staff staff rnal rnal e int the the of of ion ion s revi The The

Congress. Congress. by by proved proved ap t t en hm s tabli es

e e th in in changes changes with with accordance accordance in in d d e fill

d. d. e us posts posts additional additional and and ssified ssified cla - re were were

instruments instruments the the of of and and observations observations posts posts Secretariat Secretariat Certain Certain activities. activities.

of of es es typ the the of of details details and and tions tions financial financial and and e e dministrativ a of of 7 7 Part Part in in

observa­ the the ing ing ak m for for ponsible ponsible es r y y urve s a a with with concludes concludes report report The The

country country participating participating the the of of name name the the

Atlas. Atlas.

Cloud Cloud

station, station, e e th of of ordinates ordinates - co graphical graphical

International International e e th of of

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the the . . re re e w Year 1956 1956 during during publications publications

Geophysical Geophysical International International the the Major Major . . rt during during epo r the the of of section section this this in in d d e

out out carried carried be be will will ly ly e tiv ec resp s s c ri e sf rib­ esc d also also are are tions tions a niz ga r o national national

and and ozone ozone radiation, radiation, of of ­ r e int observations observations other other with with collaboration collaboration in in

1957 1957 April April tin tin e ll u B WMO WMO

88 88

ened ened the the task task of of reading reading the the 1916 1916 edition, edition, climatic climatic areas- especially especially in in South South America. America.

speare speare and and other other great great writers writers which which light­ research research flights flights in in powered powered aircraft aircraft in in other other

that that the the occasional occasional quotations quotations from from Shake­ acquire acquire further further experience experience during during numerous numerous

It It may may be be perhaps perhaps a a sign sign of of our our times times plenty plenty of of opportunity opportunity in in recent recent years years to to

Research Research Institute. Institute. Moreover, Moreover, he he has has had had

worthy worthy successor successor to to its its predecessors. predecessors. scientific scientific head head of of the the German German Gliding Gliding

There There can can be be no no doubt doubt that that this this book book several several is is a a decades, decades, and and for for many many years years was was

ments ments

in in the the text text and and in in the the illustrations. illustrations. been been closely closely associated associated with with gliding gliding for for

Throughout Throughout the the book book there there are are improve­ effects effects on on the the aircraft. aircraft. The The author author has has

sub-headings sub-headings will will be be generally generally welcomed. welcomed. ena ena encountered encountered during during flight flight and and their their

while while the the addition addition of of an an index index and and of of more more explain explain to to them them the the meteorological meteorological phenom­

mary mary of of how how weather weather maps maps are are prepared, prepared, both both powered powered aircraft aircraft and and gliders gliders ; ; it it will will

Another Another new new chapter chapter provides provides a a useful useful sum­ The The book book is is addressed addressed to to the the pilots pilots of of

British British weather weather forecasts forecasts on on television. television.

numerical numerical forecasting forecasting and and an an account account of of of of the the aviation aviation during during that that period. period.

positive positive attitude attitude to to the the potentialities potentialities 30 30 of of years, years, but but also also reflects reflects the the development development

Other Other changes changes are are the the adoption adoption of of a a in in more more aeronautical aeronautical meteorology meteorology during during the the past past

the the immense immense progress progress which which has has been been made made

the the theories theories of of Sutcli:ffe. Sutcli:ffe. parison parison of of the the two two editions editions not not only only shows shows

and and provides provides an an admirable admirable introduction introduction meteorologie, meteorologie, tQ tQ which which appeared appeared in in 1927. 1927. Com­

the the modern modern forecaster forecaster of of upper-air upper-air charts charts This This is is an an entirely entirely new new edition edition of of Flug­

which which explains explains very very clearly clearly the the use use made made by by

air; air; this this is is the the subject subject D.M. D.M. of of a a 35.-. 35.-. new new chapter chapter

increased increased attention attention now now given given to to schaft) schaft) the the upper upper 1956. 1956. Pp. Pp. 332 332 ; ; 217 217 figures. figures. Price Price : :

Weather Weather Map Map in in 1939 1939 is is reflected reflected in in the the am am Main Main (Akademische (Akademische Verlagsgesell­

appearance appearance of of the the third third edition edition of of The The By By Professor Professor Dr. Dr. W. W. GEoRGII. GEoRGII. Frankfurt Frankfurt

ment ment of of meteorological meteorological forecasting forecasting since since Flugmeteorologie Flugmeteorologie the the (Aeronautical (Aeronautical Meteorology). Meteorology).

features features of of the the latest latest version. version. The The develop­

review review must must be be to to call call attention attention to to the the new new

O.M.A. O.M.A. well well known known that that the the main main purpose purpose of of a a

instructed, instructed, general general public" public" The The J J earlier earlier editions editions of of this this book book are are so so

to to the the intelligent, intelligent, but but meteorologically meteorologically un­

Pp. Pp. 105; 105; 37 37 figures. figures. Price Price : : ros. ros. 6d. 6d. which which is is now now written written "in "in a a style style appropriate appropriate

(Her (Her Majesty's Majesty's Stationery Stationery Office) Office) 1956. 1956. ices", ices", have have entirely entirely disappeared disappeared in in a a book. book.

The The Weather Weather Map. Map. Fourth Fourth edition. edition. London London written written "for "for the· the· use use of of the the military military serv­

observations observations which which are are requested requested for for session session of of RA RA VI. VI.

the the symbols symbols differentiate differentiate between between those those will will be be republished republished for for each each future future

For For observations observations at at present present effected, effected, circulated circulated annually annually and and the the charts charts

are are shown shown by by distinguishing distinguishing symbols. symbols. form form of of written written corrections corrections will will be be

are are recommended, recommended, but but not not yet yet effected, effected, March March rg56 rg56 ; ; amendments amendments I I in in the the

present present made made and and those those where where they they The The data data given given were were correct correct on on

tions tions at at which which observations observations are are at at

observation. observation. On On each each chart chart the the sta­ association. association.

networks networks for for each each standard standard time time of of have have not not been been rejected rejected by by the the regional regional

wind wind and and radiosonde radiosonde observational observational authority authority may may be, be, in in so so far far as as they they

showing showing separately separately the the surface, surface, upper upper shown, shown, whatever whatever the the recommending recommending

6o

N. N. The The set set contains contains

14 14 charts, charts, recommended recommended but but not not yet yet effected effected are are 0

with with standard standard parallels parallels at at 30° 30° and and those those which which are are not. not. Observations Observations

Lambert Lambert conformal conformal conic conic projection projection the the basic basic network network of of the the Region Region and and

WMO WMO Bulletin Bulletin April April 1957 1957

89 89

O.M.A. O.M.A. S. S. H. H.

book. book. the the of of parts parts of of translations translations piloting. piloting. on on English English processes processes meteorological meteorological of of effects effects

provided provided having having for for author author the the the the to to grateful grateful appreciate appreciate be be to to meteorologist meteorologist the the and and

will will German German reading reading in in atmosphere atmosphere difficulty difficulty the the has has of of who who physics physics the the understand understand

reader reader to to English-speaking English-speaking flyer flyer The The the the help help will will discovered. discovered. experience, experience, flight flight and and

far far so so has has Baur Baur Dr. Dr. which which scientific scientific of of rules rules wealth wealth the the a a to to on on based based work, work, This This

be be may may reader reader the the of of attitude attitude the the whatever whatever

study study

careful careful

repay repay

will will

such such as as and and logy, logy, world. world. the the of of parts parts other other in in waves waves

meteoro­ on on

text-book text-book

general general a a sense sense any any in in of of use use making making by by flights flights

long-distance long-distance

not not book, book,

original original an an is is

this this up, up, Summing Summing out out carrying carrying of of possibility possibility the the concerning concerning

advice advice valuable valuable give give to to used used are are Project Project

Wave Wave Mountain Mountain American American the the of of forecasting. forecasting. results results long-range long-range

the the ; ; soaring soaring local local for for wave wave of of rules rules principles principles developing developing the the in in of of interested interested are are

given given is is who who those those by by explanation explanation full full A A welcomed welcomed be be detail. detail. also also some some will will in in tion tion

with with dealt dealt circula­ are are streams streams atmospheric atmospheric jet jet general general the the low-level low-level on on hand, hand, chapters chapters

other other the the on on The The time; time; in in research. research. variation variation further further their their for for and and material material of of

surface surface lot lot a a earth's earth's contain contain the the which which over over tables, tables, streams streams by by jet jet up up level level taken taken are are

high­ the the of of pages pages 6o 6o distribution distribution than than more more geographical geographical example, example, the the to to For For valuable. valuable.

given given is is more more space space book book the the little little of of Only Only features features soaring. soaring. other other wave wave the the of of and and some some

streams streams find find jet jet will will to to others others devoted devoted is is themselves, themselves, chapter chapter for for last last The The rules rules Baur's Baur's

testing testing enjoy enjoy will will readers readers many many Although Although

cited. cited. is is research research British British and and American American

recent recent

most most the the icing, icing, aircraft aircraft on on section section chance. chance.

comprehensive comprehensive a a In In to to possibilities. possibilities. due due gliding gliding to to being being presented presented facts facts the the of of bility bility

and and

conditions conditions flying flying to to them them proba­ relates relates the the and and states states also also he he cases cases other other in in and and

masses masses air air of of types types various. various. the the this this of of In In erties erties I952. I952. and and I92I I92I Igrr, Igrr, I887, I8gg, I8gg, I887,

prop­ the the discusses discusses author author I84I, I84I, the the I8zi, I8zi, Elsewhere Elsewhere I8o8, I8o8, I796, I796, I782, I782, of of summers summers

the the by by obeyed obeyed was was rule rule this this that that shows shows

author author the the table, table, purposes. purposes. practical practical for for accompanying accompanying than than an an In In rather rather

science science of of interest interest the the in in out out carried carried were were

which which Argentina, Argentina, in in experiments experiments own own his his

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parachutes). parachutes).

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typical typical

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observations observations a a by by described described best best are are which which

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form form

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on on

measurements measurements the the in in are are presented presented results results main main The The

trigonometric trigonometric ; ; flight flight glider glider long-distance long-distance

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contains contains

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example, example, For For included. included. is is advice advice practical practical

of of deal deal great great a a and and detail, detail, in in with with dealt dealt is is

atmosphere atmosphere the the of of 42.-. 42.-. thermodynamics thermodynamics D.M. D.M. The The

: : Price Price tables. tables. 76 76 ; ; figures figures 30 30 ; ; 38 38 I I

+ + viii viii

Pp. Pp.

I956. I956.

MBH) MBH)

lagsgesellschaft lagsgesellschaft covered. covered. not not are are aircrews aircrews of of

Ver­

(Akademische (Akademische Main Main

am am Frankfurt Frankfurt briefing briefing the the and and forecasting forecasting weather weather nautical nautical

BAUR. BAUR.

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weather weather of of forecasts forecasts for for corresponding corresponding and and diagrams diagrams aerological aerological

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tutes tutes

Grund­ als als Regeln Regeln

Physikalisch-statistische Physikalisch-statistische consti­ work work this this meteorologists, meteorologists, to to Thus, Thus,

1957 1957 April April

Bulletin Bulletin WMO WMO

90 90

ON ON SALE SALE FROM FROM

WMO, WMO, AVENUE AVENUE DE DE LA LA PAIX, PAIX, GENEVA GENEVA

No. No. 16 16

Superadiabatic Superadiabatic

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and and

R e l a

tion tion to to Perform a nce nce Criteri a. a. W . L. L.

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Price Price

Recent Recent additions additions to to WMO WMO the the series series of of Technical Technical Notes Notes include: include:

WMO WMO TECHNICAL TECHNICAL NOTES NOTES

(

t e n

tat

i ve) ve)

of of ICAO ICAO (SAM / SA T T RAN) RAN) (sit e e not not yet yet k n own). own).

14-30 14-30 October October

2 nd nd So u th th American - South South Atlantic Atlantic Reg i onal onal M e eting eting

to l ogy ogy a nd nd Bio m eteo r o l ogy , , Vienna, Vienna, Aust ri a a

23-27 23-27

Septemb

e r r

1st 1st Congress Congress of of the the International International Soc i ety ety of of Bioc li ma­

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9-20 9-20

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Internationa l l Conference Conference on on R ad i o -i sotopes sotopes in in Scie n­

burg, burg, Ge r many many

8-15 8-15

September September

4th 4th Int ernat i ona l l Congress Congress of of Crop Crop Protect i on, on, Ham­

3-14 3-14

Septem

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nth nth Ge n era l l Assemb l y y of of IUGG, IUGG, T oron to , , C an ada ada

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Ca ra cas, cas, Venez u e l a a

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(tentat

i ve) ve)

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14-

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Beginning Beginning

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1

8 8 June

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Pa r is, is, France France

r8 r8 June-

9 9

Jul

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