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Hydrological Research Miscellaneous Publication No 10

A Catalogue of Hydrological Resea rch in Progress in N ew Zealand 19 71

Miscellaneous hydrological publication no. 10 (1972) Ministry of !'lorks,'Water and Soi I Division Miscålianeous' ' Hydrological Publications: No. 1: Streamf low correlation in the Vlanganui basin. C. A, A. Smyfh, k re68. # Þ No. 2: Measuring stream discharge using the dye:dilution method (chemical

gauging). Hans M. Kel ler, 1969.

No. 3z A study of stream behaviour in the Cante¡bury foothills, New Zealand. Hans. M. Kel ler, 1970.

No.4:' Hydrological regions of New Zealand. C. Toebes and B. R. Palmer,

1969.

No. 5: Field testing of the IAEA portable radioisotope sediment

concenlration gauge. W. B. Morrissey, 1970. No.6: The relationship between summer low flows and geology ín Northland,

New Zealand. J. R. Waugh, 1970.

No. 7z Representative basins of New Zealand, 1970; n.a., 1970. ! No. 8: A catalogue of hydrological research in progress in New Zealand, f ¡ ta 1969; tr.â.r 1970. No. 9: A catalogue of hydrological research in progress. in New Zealand, 1970 n.a., 1971.

p i t i I t

Miscellaneous hydrological publication no. 10 (1972) MINISTRY 0F l^loRKS - IIATER AND SoIL DMSI0N

MISCELLANEOUS HYDROLOGICAL PUBLICATION NO. 10

A CATALOGUE OF

HYDROLOGICAL RESEARCH IN PROGRESS

IN NEl,l ZEALAND

l97L

ldellington, New Zealand ' 1972

Miscellaneous hydrological publication no. 10 (1972) This publ icatîon is Produced as

a New Zealand conlribution to the

I nternational Hydrological Decade,

1965-75, estab I i shed bY UNESCO

to furlher infernational

co-operation and studY in the

science of hYdrology.

published for the National V'laler and SoÎl Conservalion Organisation

By the Water and Soi I Division, Ministry of Works

Wel I i ngton, New Zea land

Miscellaneous hydrological publication no. 10 (1972) INTRODUCTION

This catalogue, the fhird in this series, has been prepared because of an original request by lhe Coordinating Councîl for the lnternational Hydrological Decade, UNESCO, Paris to report annually on hydrological research in progress on a prescribed form.

The New Zealand National Committee for the IHD subsequently requested the Ministry of Works to publish an annual catalogue in terms of the Coordînating Counci I fs request adding local information concernÎng:

(i) The name and address of the leader or correspondent for each p roject.

(i i ) Any other New Zealand agencies, as wel I as those abroad, col I ab-rati ng i n the Projecl. ln selecting the principles to be included, the following guidelines were adopled:

(¡) A research project is any projecl that may be considered as an individual work or study, whelher large or smal l. (¡i) Projecls must be in progress and have a reasonable chance of continuity, or have been carried out and completed since the starl of the lnlernational Hydrological Decade on 1 January 1965. (¡ i i) The work must be of an acceptable standard. The annual reports are prepared by lhe Hydrological Survey of the Water and Soi I Division under lhe direction of Mr C. Toebes, Chief Scienlif ic Hydr-ologist and lhe projects have been classif ied under headings in line with the scientific aroupings of the Hydrological Survey viz.: Processes and Methods Environmental Studies Water Resources Water Qua I ily.

One hundred and twenty-one of the projects listed in the 1970 catalogue have been continued and forty-nine projects have been added for 1911.

Miscellaneous hydrological publication no. 10 (1972) Miscellaneous hydrological publication no. 10 (1972) CONTENTS

Page

I ntroduct i on

Code

PROCESSES AND METHODS

I PROCESSES

Governmenl Depa rtments (Winchmore) Agriculture 1 Projects 46, 49, 96, 146 D.S.l.R. (Planf Physiology Division) 2 Projects 97-8, 147-8 MOW (Water and Soil Division) 3 Projects 18, 21 , 26-7, 29-35, 37-42, 99-103, 116, 149-153 Universities

Auckland (Civi I Engineering Department) 12 Projects 74-76, 79 Canlerbury (Geography Department) 13 Projects 72, 104, 106, 15 Lincoln Col lege (Agricultural Engineering lnstitute) 14 Projects BB-89, 90, 91, 155 Lincoln Col lege (Tussock Grasslands and Mountain Lands 16 I nst i tute ) Project 156 Otago (Botany Department) 17 Project 157 Otago (Geography Department) 17 Projects 158-161 Victoria (Botany Department) 18 Projecf 108 Wa i kato 19 Projects 162-3

I I METHODS

Government Depa rtments

D.S.l.R. (Applied Maths Division) 20 Projects 109, 110 MOW (Waler and Soi I Division) 20 Projects 28, 111, 112, 164-5 Universities

Auckland (Civi I Engineering Department) 21 Projects 77,81 Canlerbury (Civi I Engineering Department) 22 Projects 82, 85, 113, 114, 115

Miscellaneous hydrological publication no. 10 (1972) Page

Canterbury (Geography Department) 23 Projecf 166 Lincoln Col lege (Agricultural Engineering Department) 24 Projects 86-87, 167 Wai kato (Mathemati cs Department) 25 Project 168

ENVIRONMENTAL STUDIES

I GOVERNMEN i DEPARTMENTS D.S.l.R. (Soil Bureau) 26 Project 9 Forest Service (Rangiora) 26 Project 20 Forest Research lnstitute (Rotorua) 26 Project 169 MOW (Water and Soi I Division) 27 Projects B, 10-14, 19, 52, 117-119' 170-1

I I UNIVERSITIES

Canterbury (Geography Department) 31 Project 71 Li nco I n (Tussock Grass I ands and ltttrcunta i n Lands 32 I nst i tute ) Projecf 172 Massey (Geography Department) 32 Project 120 Olago (Botany Department) 32 Project 5 Vicloria (Geology Department) 33 Project 175

I I I OTHER

Cawthron I nstifute 33 Project 6

WATER RESOURCES

I GOVERNMENT DEPARTMENTS

Agri cu I ture (Wi nchmore) 34 Projects 47, 121 D. S. I . R. (Geo I og i ca I Survey ) 34 Projects 122-133 MOW (Water and Soil Division) 3B Projects 22, 43, 50, 53-60, 134-5, 174'5

I I UNIVERSITIES Lincoln (Agricullural Engineering Department) 42 Project 176

I I I OTHER

Norlh I and Calchment Commi ssion 42 Project 136

Miscellaneous hydrological publication no. 10 (1972) 43

49

49

49

51

51

52

53

Miscellaneous hydrological publication no. 10 (1972) CODE

For fhe sake of brevity the following code has been used for the entries under each project number: A Brief description of project.

B Address of organisalion carrying out the projecl with name of the correspondent or project leader in brackets.

C Summary of work carried out to the end of 1971. D Publ ications during the period under review.

E Work to be carried out during 1972.

F Name of other organisations col laborating in the project (bolh in New Zealand and abroad).

With the exception of the omiss¡on of the number of the resolution of the Coordinating Council, these are predominantly the same, and are in the same order, as those on the IHD form.

Miscellaneous hydrological publication no. 10 (1972) I PROCESSES Pro iect No. 46 A. Hydrological characterisfics of soi ls' B. Winchmore I rrigation Research Stalion, Department of Agriculture, Pri vate Bag, Ashburton. (D. S.'n¡ckard, G. G. Cossens, P' D' Fitzgerald)' C. Completion of field and laboratory studies of 135 soi ls from olago irrigaf ion areas. Soi ls are analysed for f ield capacity, bulk ¿enãity, tãxfure, moisture retenlion curve, moisture equivalent, specific gravity'and o.guni c carbon. From these, total and avai lab le moislure, porosity and macroporosity are calculated' D. Cossens, G. G. et al 1971: lrrigation investigations in Otago, New Zealand. vl I I Physical properties of soi ls of the Lower Waitaki Plains. Neu ZeaLøtd Jouv'naL of AgrLeuLtutaL ReseaPeh L4 : 539-51. E. Extension to Canterbury i rrigalion areas'

Pro.iect No. 49

A. Soî I moisture/paslure producfion study'

B. Winchmore I rrigation Research Stalîon, Department of Agriculture, Prî vate Bag, Ashburton. (P. D: Fitzgeral d, D. S. Rickard).

C. A long term Projecl comPrÎsing: (1) Measurerent of dry matter produclîon under differenl i rrigalion regimes. days of e) Corre I alion of pasf ure p roducti on w i lh number of drought during lhe growing season. (3) Correl afion of- î ntegraled moisture stress wi th pasture production under various i rrigation regimes' and D. Rickard, D. S.; Fitzgerald, P. D. 1911 : SoÎ l moisture pasture growth iñ Cantárbury. PtoeeedLngs Siæth Neu ZeaLutd GeograPhY Conference : 20L-208'

E. Continuafion of programme, exfension to crops'

Pro.iecf No. 96 A. Relalionship befween infi ltration and soi I physÎcal properties' B. winchmore Research statîon, Deparfment of Agriculture, Private Bag, Ashburfon. (P. D. Fitzgerald, G' G' Cossens, D' S' Rickard)' C. Correlation of one and three hour accumulated inlake rates from ring infilfrometers (wet runs) and the parameters in Philiprs and. Kosi¡akovrs equations, with soi I physical properties of Otago soi ls'

Miscellaneous hydrological publication no. 10 (1972) -2-

D. Fitzgerald, P. D. et al 1971: lnfiltration and soil physical properties. JoumaL of HydroLogy (N.2.) 10 (2) : LZ0-i.26. E. Project comp leted.

Pro.iect No. 146 A. Use of methods of deficit estimation to determine water requirernents of rostered i rrigation schemes. B. Winchmore lrrigation Research Station, Department of Agriculture, Pri vale B.ag, Ashburton. (P. D. Fitzgerald, G. C. Arnold).

C. Us i.ng Thornthwa ites method of ca I cu lati ng soi I nro islure def i cits, a means has been devised of determining the water requirements of roslered schemes.

D. None.

E. Pub I icatîon of results.

Pro.iect No. 97 A. Measurement of evapotranspiration of crops and pasfures. B. Microclimate and Crop Physîol.ogy Section, Plant Physîology Division, D.S. I.R., PaInersfon North.

C. Measurement of evapolranspiration rales of lucerne, maize and paspa I um.

Energy balance approach used. Emphasis placed on seasonal changes i n evapotransp I ration rate.

D. None.

E. Continue evapotranspi ration measurements. I ncl ude measurements of leaf and soi I water slalus, and leaf stomatal resistances.

Pro.iect No. 9B A. Prediction of crop evapotranspiration using a soi l-plant-atmosphere nrode I , based on phys ica I princip les. B. Microclimate and Crop Physiology Section, Plant Physiology Division, D. S. I . R. , Pa I merston North . C. Preparation of data for input to computer simulation crop evapotranspi ration model . Further stomatal resistance measurements made.

D. None. E. Continue \Ârifh testing of model.

Miscellaneous hydrological publication no. 10 (1972) -)-7

F. Dr E. R. Lemon, U.S.D.A., A.R.S., Microcl îmate I nvestigations, Cornell Universily, lthaca, New York, U'S'A'

Pro.iect No. 147 A. Moisture regimes in New Zealand so¡ ls (Southern South lsland). B. Soi I Bureau, D.S. I .R., Pri vate Bag, Lower Hutt. C. Measuremenls of moisture by neutron absorpfion, resistance of gypsum blocks and gravimetric determinations in soi I profi les of a pedological sequence of soi ls f rom loess; correlation of morphology with macroclimate.

D. None. E. Complete observations for ful I two year period.

P ro.iecl No. 1 48 A. Moisturc retenfion of profi les characteristic of main New Zealand soi I groups. B. Soi I Bureau, D.S.1.R., Private Bag, Lower Hult. C. Earlier work on North Auckland soil groups has been extended lo soi ls in northern part of wel I ington Province and Otago. D. Gradwell, M. W. 1971: The available-water capacitîes of Norlh Auckland.soi ls. N.z. JoutnaL Agt"LeuLtu.taL Research 1-4 : 253-87.

""0*:i:í"1;.*' ',¿2:n'r:2: i;'i"; [Zlt .;"1"")' ,i"n'r1j'ii'l'r*i. 6.1 - 6. L3" E. Further work in South lsland.

Pro.iect No. 1B - A/Sc/1 A. Runoff and soi I loss plot studies to determine hydrological effecls of contouring. B. Water and Soi I Division, Ministry of Works, Box 5040, Auckland. (4. N. G I ass) . C. Routine data collection of f low, sediment, precîpitation and associated pasture and stock productivity data'

D. None. E. Flow gauging of two additional plols and continuation of existing obse rvat i ons .

Miscellaneous hydrological publication no. 10 (1972) - 4-

Pro.iecl No. 21 ' Ho/HY/5 A. Mathematical estimalion of crown leaf area' B. V,later and Soi l Division, Minislry of Works, BoX 12.041 , Wel linglon. (G. J. Blake). c. lnitial work on you.ng kauri specinens ugathis austnaLis) has ceased pending the stüOy ót tne procedure received from the U.S. Forest Service and wõrk by the N.Z. Forest Service. Data from Project 29 is to be used în future. D. None. E. To be comPleled. Pro.iect No. 26 - Ho/HY/3 A. The measur-êln.:rìt of transp î ration ' B. water and soi I Division, Ministry of works, Box 12'041' Wellington. (G. J. Blake). C. Sensors (thermocouples and heaf flow plates) were instal led in a tree at Taita experimäntal basin and in a 0.3 m diameterP. raåiata at Whakarewarewa interceplion plot. D. None. E. Furlher work on the Project' F. soi I Bureau and Physics and Engineering Laboratory, D.S. l.R. Pro.îecl No. 27 ' Ho/HY/2 A. Waler retenlion properlies of leaves' B.WaterandSoilDivision,MinistryofWorks,Box12-041, Wel I inglon. (W. Burke). C. Two field trips were made to observe rainfall retention and shedding processes on some of the Plants. D.Blake,G.J.1971l]llaterretentionpz,opertie'o.fLeaues. úydrological research progress rep-ort no' 4' Ministry of Works, Wellington. E.Preparationofreporlandcomplelionofproject.

F. Phys i cs and E.ng i neeri ng Laboralory, D' S ' I ' R'

Miscellaneous hydrological publication no. 10 (1972) -)-E

Pro.iect No. 29 ' Ho/HY/6 A. The determination of phytomorphological characterislics for a range of New Zealand sPecies' B. water and soi I Division, Minislry of works, Box 12-041 ' Wellington. (W. D. Burke). C. A procedure for determining growth form characteristics of trees and shrubs was sent to press and work began on anolher describing growth form characteri sli cs for f I atweeds '

D. None. E. Col leclion of information on growth form characterislics of grasses and preparatîon of procedure' Pro.iecf No. 30 - Ho/HY/7 A. The measurement of interceplion characteristics in several imporlant forest, scrub and herbaceous associations. Box 12-041 B. water and soi I Di vi s i on, Mi n i sfry of works, ' Wellinglon. (G. J. Blake). C. Al I sites with lhe exception of herbaceous studies on Makara experimental basin, were closed or will be closed early în 1912.

The equipment wi I I be retained unti I data processÎng is comp I eted.

D. McQueen, D. R. and Blake, G. J., 1911: The surface retention ofprecipitalionbysubalpinevegetationandlilter. papär New Zealand Ecological Society Conference, Wel I ington. I n p ress. E. closure of remaining sites, further data processing, and pub I i cation of rePorl. Pro.iect No. 31 - Ho/HY/17 A. Sucrose radÎation measuremen-|. B. water and soi I Division, Ministry of works, Private Bag, Christchurch.

C. I n abeYance for one Year. D. None. E. Cal ibrafion of equiPment.

Miscellaneous hydrological publication no. 10 (1972) -6-

Pro.iecl No. 32 - Ho/HY/11 A. soi I nroisture samp ling by the neulron scatter technique. B. waler and Soi I Division, Ministry of works, Box 12'041' Wellington. (G. J. Blake).

C. A report of work on the Makara experimenfal basin was prepared.

D. None.

E. Pub I i cation of rePort.

Pro.iect No. 33' Ho/HY/12

A. Fog precipitalion measurements, Makara.

B. Waïer and Soi I Divisîon, Ministry of Works, Box 12-041, Wel I inglon. (S. Franks). c. six pairs of rain gauges, one of each pair being fitted wilh a Grunow fog interceptor were situated in catchmenÌ 1 of the Makara experir.niul basin. lt was found that the rain gauge wìlh th9 fog caicher caughl more raîn. Regressions were carried out on this for days of no fog. Also tested was the relationship ( linear). between rainfall increase and the producl of control catch and wind velocity.

D. None.

E. Revision of Project. Pro.iect No. 34 - A/Hy/3

A. A phyfomorphological study of an experimental basin'

B. water and soi I Division, Ministry of works, Box 12-041, Wellington. (V'l. Burke).

c. Preparalion of rePort.

D. None.

E. Pub I i cation.

PIo.iect No. 35 - Ho/Hy/10 A.Climatologicalcharacleristicsalhighaltitude. B. water and soi I Division, Minislry of works, Box 12-041, Wel lington. (S. Franks). C. Data from the six climate stations al Black Birch for the period March to December 1971 were analysed'

Miscellaneous hydrological publication no. 10 (1972) -l-

D. None. E. Conlinuation of project. Pro.iecf No. 57 - A/HV/5

A. Exlens i on of i ntercepti on data, Puketurua experi menta I bas i n.

B. Water and Soi I Division, Ministry of Works, Box 12-041, Wel I ington. (G. J. Blake).

C. Analysis of the throughfall data at a number of points in lhe Puketurua experimental basin in comparison with records from lhe interception sludy was carried out.

D. None. E. To be ccmplefed. Pro.iecf No. 38 - Ha/Hy/6

A. Measurement and assessment of microcl imate.

B. Water and Soi I Division, Ministry of fVorks, privale Bag, Hami lton. (R. J. Piltams).

C. Aufomatic records of humidify, air temperature and grass minimum femperature were obtained at a base statÌon and five mobi le sites. lnvesligafions of temperature, humidity, wind studies and rainfal I measurement af canopy level were carried out.

D. None. E. Continued dafa collecfion. Pro.iect No. 39 - Na/HylB

A. Measurement and assessment of humus and I itter. B. Water and Soi I Division, Ministry of Works, Box 143, Napier. (P. J. Grant).

C. No scientific dala are available on water storage of humus and litfer. Methods of data col lection are being devised for use at representative basin in Kaweka hydrological region. D. None.

E. Testing of data col lecfion methods.

Miscellaneous hydrological publication no. 10 (1972) -B- Pro.iecf No. 40 - Ha/Hy/5 A. Channel morphology and development. B. Water and Soi I Division, Ministry of Works, Private Bag, Hami lton. (R. J. Pittams). C. Project was restarted 1971 based on techniques and work of Leopold and La.ngbein. Measured fealures on the are: width, depth, velocity, slope, sediment load, size of sediment debris, hydraul ic roughness, and discharge. Exisling gaugings were plotted tq give lhe relationships between discharge and each of width, velocily, and hydraulic mean dePth.

D. None.

E. Conli nued dala co I I ecti on.

P ro iect No . 41 ' Ha/HY / 4 A. Gul ly formation and development of draînage densily of pumice soi ls. B. Water and Soi I DivisÎon, Ministry of Works, Private Bag, Hami lfon. (R. J . Pi ttams) . C. Site inspections and photographic surveys conlinued through 1971. ln several cases the course of gully formafion has now been documenled wîth a sequence of photographs.

D. None. E. Conli nued surveys. Pro.iecf No. 42 'Ha/Hy/2 A. Methods of determining geomorphological characferistics. B. Waler and Soi I DivisÌon, Ministry of Works, Private Bag, Hami lton. (R. J. Pittams). C. Project in abeyance.

D. None. E. None. Pro.iect No. 99 - Ho/Hy/B A. Flood characteristics of representative basins. B. Water and Soi I Division, Ministry of Works, Box 12-041, Wel I inglon (C. Toebes ) . C. Projecl sti ll in abeyance pending completion of storing data on magneti c tape.

Miscellaneous hydrological publication no. 10 (1972) -9-

D. None. E. Confinue work on dala processing' Pro.iect No. 100 - Ho/HY|13 A. Roof characterislics from experimental basins' B. water and soi I Division, Minislry of works, Box 12-041, Wellington. (G. J. Blake). C.ApaperwassubmittedtoUNEsCOforpublication. D. None. E. Project in abeYance. Pro.iect No. 101 - Ho/HY/20

A. I nfi ltration rales from studies of i ndi vi dua I storms. B. water and soi I Division, Minislry of works, Box 12-041, Wel I ington North.

C. I n abeYance. D. None. E. None. Pro.iect No. 102 - A/HV/a A. The assessment of microcl imate on an experimenlal basin. B. waler and soi I Division, Ministry of works, Box 12-041' Wellington. (S. Franks) . C. Microcl imates at a selection of sites with di fferent characteristics were studied. Permanent cl imaÌe station records were used as a basis for comparîson.

Some dala col lected between March 1968 and December 1969 were analysed. The equipmenf was reinstal led for three months in 1971 to give records oi.änditions at the same sites with vegefation removed.

D. None. E. Analyse dafa and publ ish report' Pro.iect No. 105 - Na/HY/5 A. Earlh flow on mudstone. '143, B. Water and Soi I Division, Minislry of Works, Box Napier. (R. K. Smilh).

Miscellaneous hydrological publication no. 10 (1972) -10-

C. Pi lot study showed: (1) the higher the fault density the more I ikel ihood of earfh f I ows occurri ng; (2) earfh flows lend to occur between altiludes of 120 and 300 mefres; . ß) most develop on s lopes of 10-200 but display little or no preferred ori entalîon; (4) loose jointed and bentonitic mudstones, ôrgi I I ite and calcareous grey shales are the rock types most iusceptible. t

D. None.

E. More deta i I ed morphometri c ana I ys i s. Pro.iect No. 116 - Ho/Hy/4 A. 0verland flow processes. B. Water and Soi I Division, Minislry of Works, Box 304, Nelson. ( F. Scarf ) .

C. The project was lransferred to Moutere experimental basin due to difficulfies wîth fhe combined precipitation-f low recorder and the difficulty of analysing fhe grass cover at Makara.

D. None. E. Work af Moutere.

Pro.iect No. 149 ' Na/HY/6

A. Gul ly erosion in argi I I ite. B. Water and Soi I Division, Ministry of Works, Box 143, Napier. (R. K. Smith).

C. Two gul I ies below the Mangafu experimental basin were selected as satisfacfory to commence work in.

D. None.

E. I nstrumentati on of the gu I I î es and further i nvesti gatî on of other areas of Mangatu Forest for suitable sites. pro iect No. 'l50 - Na/Hyl 10 A. Wetting losses of standard rain gauges. B. Water and Soi I Division, Ministry of Works, Box 143, Napier. (P. J. Grant) . C. The wefting losses of a Mefeorological Office Mk I copper rain gauge were compared with Ìhose of a Marquis 1000 plaslic gauge. Various laboratory tests showed that the Marquis 1000 plastic rain gauge is a more accurate indicator of small amounts of rainfall than the Mk I gauge.

Miscellaneous hydrological publication no. 10 (1972) - 11 -

D. Rapier, D. A. and Granf, P. J., 1911: Comparison of wetting losses of two types of rain gauge. JoumaL of Hydrology (N.Z.) L0 : 704-10B.

E. Fu rthe r i nvest i gat i ons .

Pro.iecl No. 151 - Na/Hy/11 A. Evaporation losses from rain gauges. B. Water and Soi I Division, Minislry of Works, Box 143, Napier. (P. J. Grant).

C. Various mechanical modi fications were made to the standard Meteorological Office copper gauge and to the Marquis 1000 plastic gauge and field observations commenced lale in the year to determine effectiveness.

D. None. E. Dala col lection and analysis. Pro.iecl No. 152 - Na/Hy/12 A. Storage rain gauge comparison. B. Water and Soi I Division, Minislry of Works, Box 143, Napier" (P. J. Grant). C. A comparative experimenf befween dîfferenf types of storage rain gauge was begun al Ngahere representative basin Kaweka Range at an altitude of 975 n.

D. None. E. Continuation of work. Pro.iect No. 153 - Dn/HY/5 A. Sludy of evaporation in the GÎmmerburn basin. B. Water and soi I DivisÎon, Ministry of works, Box 451, Dunedin. C, The project incorporates a waler balance of lhe basin using both the rainfal I record and the calculaled evapotranspi ralion values. A temporary flow measuring structure (V-notch and weir) was inslal led. Fluctuations in soi I moisture were establ ished by gravimetric sampl ing within the basin. A computer program was developed to process three years of dai ly data from the four climate stations.

D. None. E. Conlinuafion of work.

Miscellaneous hydrological publication no. 10 (1972) - 12-

Pro iecl No. 74

A. I nstab i I i ly and ri ver meanders ' B. University of Auckland, Department of Civi I Engineering, Private Bag, Auckland, New Zealand. C. None. D. ca I lender, R. A. 1971 : Discuss ion on f I ume experirnents on alternate bar formation. Pyoc. ASCE VoL. 97 I,/W 4 : 766-68.

E. Project comP I eted.

Pro iect No. 75 A. Loose boundarY hYdrau I i cs. B. university of Auckland, school of Engineering, Department of Civi I Engineeri ng, Private Bag, Auckland' (Professor A. J. Raudki vi ). C. Study of the mechanics of sediment entrainment and transporf, formation of bed forms and resistance to flow in alluvial channels. principal lopics studied are bed forms, steady state resistance, the mechanics of turbulent entrainment, and scour at hydraul ic structures. D. Raudkivi, A. J. 1911 : Sediment transport mechanics. Proe. ASCE VoL. 97 HY L2 2089-83. E. Study of the effect of suspended matter on the structure of lurbulence. continuation of a Ph.D programme on physics of scour al bridge piers and hYdraulic structures. F. Nalional Roads Board (scour studies)'

P ro.iecl No . 76 A. Movemenl of moisture in capî llary and vapour phase in porous medium. B. Uni vers ily of Auckl and, Deparlment of Ci vi I Engi neeri ng, Pri vate B.ag, Auck I and. (Professor A. J. Raudki vi ). c. A study of the quantities of water moved by capi I lary effecls and in uupoû. phase subject to fhermal gradienls in porous medium' D. Raudkivi, A. J.; Nguyen, V. U. 1971 : Moislure movemenl in poróur medìa due'to temperalure gradienl-s. N.Z. Roading Synposiun K/ 1-- 7' Í'leLLington. E. Continuation of Project. F. National Roads Board'

Miscellaneous hydrological publication no. 10 (1972) - 13-

Pro.iect No. 79 A. The physics of erosion of cohesive soi ls. B. Universily of Auckland, Department of Civi I Engineering, Private Bag, Auckland. (Professor A. J. Raudki vi ). C. The sludy is aimed at clarificalion and descripfion of the physics of erosion of cohesive malerials, in lerms of the electro-chemical forces acting between lhe colloidal particles subject to water at various chemical consistencies and at various levels of shear stress. D. Raudkivi, A. J.; Hutchinson, D. L. 1971 : Erosion of cohesive soi ls. Pv,oe. Fouyth ALcstz,aLaßian Conference on HgdtauLics and ELuLd Mechartícs p. 360-366 Melbourne. E. Thesis presenfation.

F. Financial support from Sir Wi lliam Stevenson.

Pro.iect No. 72 A. Conlemporary processes of deltaic sedimentafion and their modification by marine action. B. Geography Deparfment, Universîfy of Canterbury. (!V. J. Slephen). C. Long ferm and short term profi le changes, foreshore texlural changes, and nearshore wave regime.

D. None. E. Analysis of presenl data.

Pro.iect No. 104 A. Micro cl imatological study - lvory Glacier.

B. University of Canterbury in conjunction with M¡nistry of Works, Glacia logica I Section. (F. Harding).

C. Measurement of radiative flux, sensib le and latent heal fluxes, wi nd speed and di rection, ab I ation, rai nfa I I , heat lransfer through snow pack. D. M.A. Thesis. E. Continuation of project.

Miscellaneous hydrological publication no. 10 (1972) -14-

Pro.iect No. 106 A. Transport processes in natural channels. B. Geography Department, University of Canterbury. (T. Day ) .

C. Slug injectîons of salt solutions were used to evaluate the behaviour of turbulent di ffusion (velocity fl uctuations) and dispersion (transverse velocity gradients) processes affecfing the longitudinal transport of mass in natural channels.

D. None.

E. Continuation of fiel d data to cover sufficient discharge ranges.

Pro.iecf No. 154 A. Coasfal processes in the Kaikoura area.

B. Geography Deç :rtment, Un i vers i ty of Canterbury. (E. Ki rk).

C. (1) Beach sediment budgets, sources and variations between Mangamaunu and Kahulara.

Q) Beach morpho I ogy stud i es i n the same a rea.

(3) Surf and runup processes on mixed sand shingle beaches. D. Ki rk, R. M. 1971 : Swash Zone Processes , CoastaL Research Notes 3(4) : L-3. Georgia Marine lnstitute, Florida, U.S.A. Book and other papers in preparation

E. (1) Offshore sedimenl survey Mangamaunu fo Kahutara to study dispersal routes of fine sediments.

(2) Wave recording to defermine seasonal ttwave climatert and to obtain statistics for beach process studies. (3) Study of micro-erosion rafes on shore platforms, Kaikoura Peninsula.

Pro.iect No. BB

A. Mechan î cs of ra i ndrop eros i on.

B. New Zealand.Agricullural Engineering lnstitute, Lincoln College, Canterbury. (D. J. Painter) C. A fundamental sludy of the effecfs of raindrops in promoting erosion from soi I surfaces. Earl ier work with single drops and stationary water fi lms was exlended to a study of simulated rainfal I on flowing fi lms. Stroboscopic and cine-photography, hot fi lm lurbulence measurements and

Miscellaneous hydrological publication no. 10 (1972) -15-

measurement of mean flow properties were used to explain the modificafion of the flow by rainfal l. Direct observation of the drop-cavily-jef-turbulence sequence has been an importanl aspect. D. Tuong, T. P. 1972: An experimental study of rainfall-modified overland flow. Ph.D. thesis, University of Canterbury. E. Preparation of shorter publ ications. F. Department of Agricultural Engineering, Lincoln College.

Pro.iect No. 89 A. Developmenl of erodibi lify indices as a guide to the potential erosion hazard of selected soi I types.

B. New Zealand Agricultural Engineering lns-litute, Lincoln College, Canle rb u ry. (D. J. Painler).

C. An indo:r dripping-thread rainfal I simulafor was construcled and used to study the soil losses from a laboratory soil bîn using samples

of three yel low-grey earths. The results were compared with soi I physîcal and profi le properties. D. Khatri Chhelri, T. B. 1911 : Relative erodibility of soi ls. M.Ag.Sc. thesis, Lincoln Col lege, Canterbury. Khafri Chhefri, T. B.; Painler, D. J. 1971 : Erodibi lity of New Zealand soi ls. Jouz,naL of Hgdz,oLogg (N.2.) L0(1) : 49-58.

Further pub I i cafi on :

Painter, D. J. 19722 ( ¡) An introduction to the universal soi I loss equalîon. (i¡) Lincoln research efforts on soil erodibility.

Both in: I'oess soiLs mtd probLems of Lønd use on the dounLands of the South IsLm,d, Nøu ZeaLøtd. Otago Catchment Board Pub I i cation No. 4.

E. Project comp I eted. F. Department of Agricultural Engineering, Lincoln Col lege.

Pro.iecl No. 90

A. Mechanics of tunnel-gul ly erosion.

B. New Zealand Agricultural Engineering lnslîtufe, Lincoln Col lege, Cante rb u ry . (D. J. Pai nter).

Miscellaneous hydrological publication no. 10 (1972) -16-

C. Field invesligalion of tunnel-gully areas was followed by prof ile sampling at an area on the Port Hills near Christchurch. The clay dispersion caused by high exchangeable sodium levels and the swelling and slaking properties of the soi I were sludied with specially devised techniques for lhe latter two.

D. Mi ller, D. E. K. 1911 : Soi I properties affecting lunnel-gully erosion. M.Ag.Sc. thesis, Lincoln Col lege, Canterbury.

E. Project comp I eted.

Pro.iect No. 91 A. Water requi rements of croPs. B. New Zealand Agricultural Engineering lnstitute, Lincoln College, Canterbury. (D. J. Painter, T. D. Hei ler). C. Work on the project is conlinuing.

D. None.

Pro.iect No. 155 A. Recharge of undergr-ound waler f rom gravel ly river beds. B. Agricultural Engineeri.ng lnslitufe, Lincoln College, Canterbury. (Grant Huber, Bessel vanrt Woudt).

C. Field surveys and a review of I iterature and experience are leading to a study of the basic principles in a flume, and of bed characteristics, and possibly to infí ltrafion measurements under field condifions.

D. None. E. Continuation of work. F. N.Z. Geological Survey, D.S. l.R.

Pro.iect No. 156 A. Torlesse Research Area - sedimentafion, erosion and land use stud i es. B. Tussock Grasslands and Mountain Lands lnstitute, Lincoln Col lege, Cante rb u ry . C. Detai led channel survey including 60 permanently eslabl ished cross sectîons; four man base hut bui lt; vortex tube sediment trap bui lt; investigations info nature of, and movement processes on, rock debris slopes; delermination of partÏcle size distribulions in slream channe I s.

Miscellaneous hydrological publication no. 10 (1972) -11 -

D. None.

E. Record bed load and suspended load sediment; commence the fol lowing: studies of sedimenl source areas studies lo determine source areas of sfream flow record wind borne sediment investigations in geologY of area studY of animal grazing behaviour studies of plant sociology conditÎon and frend'

F. Canterbury University: Dr A. J. Sutherland, Department of Civi I Engineering; Prof. J. M. Soons, Geography Deparlment' Agricultural Engineering lnslitute: Dr J ' Painter' D.S.l.R. (Soil Bureau): D. W. lves. N.Z. lnstitute of Nuclear Sciences: Dr W' McCave' Lincoln Col lege: Dr G. T. DalY. North Canterbury Calchmenl Board: R. D. Dick'

Pro.iect No. 157 A. Precipitation gradient on Rock and Pi I lar Range, CenTral Otago. B. Bolany Deparfment, university of otago, Dunedin. (Dr Mark). C. Study of water balance of snow tussock wilh data collection at a main stalion (1030 m) and from storage gauges al five other altitudes above and below the main slatîon. All were installed in April 1969. Results so far s.u.ggest a steady increase in annual preciPilution from ca. 750 mm at 365-m (base of range) to 1290 nm at about 1100 m beyond which the catch decreases to about 90 mm'on the summit ridge at about 1370 n. These long-term estimates become less precise as elevation i ncreases.

D. None. E. Continuatîon of work.

Pro.iecl No. 1 58

A. Rainfal I measurement in snow tussock grassland.

B. Geography Department, University of Otago. (D. L. Murray and R. M. Jackson).

C. Data col leclion for lesting homogeneity of site, and analysis.

D. None.

E. Stratiiication of gauges and appl icatîon of fi rst treatments.

Miscellaneous hydrological publication no. 10 (1972) - 18 -

Pro.iecl No. 1 59 A. Evaluation of the effects of subsurface drainage on soil moisture status and related pasture productivity. B. Geography Deparlment, University of Otago. (H. F. R. Lagocki ). C. Literature review; survey of area and subdivision for treatment; laying of mole and ti le drains; instal lation of meteorological site.

D. None.

E. Estab I i shmenf an.l tesfi ng of measurement network; samp I i ng determinations on several soi I parameters.

Pro.iect No. 160 A. Evaporalion sup ressanls for rain gauges. B. Geography Deparlment, UnÎversÎty of Otago. (D. L. Murray). C. Testing of rales of evaporation and effects of two suppressants in standard rain gauges.

D. None. E. Dala analysis and planning of further lrials.

Pro.iecl No. 161 A. The accuracy of rain gauges under exposed conditions. B. Geography Department, University of Otago. (K. R. Dreaver). C. Completion of data analysis and preparation of thesis.

D. None. E. Projecf is completed.

Pro.iect No. 108 A. Vegetation structure and moisture interception. B. Botany Department, Vicloria University, Wel I ington, Box 196, Wel I inglon. (D. R. McQueen).

C. Suspended whi le leader absent on leave.

Miscellaneous hydrological publication no. 10 (1972) -19-

D. None.

E. None.

Pro.iecl No. 162 - (See a lso project No . 12) A. Origin of overland flow in Otutaru catchment. B. University of Waikato. C. Analysis of data from 14 runoff plots and Otutaru catchment for fhree year period. Study of infl uence of rainfal I intensity and antecedent soi I moislure conditions.

D. None. E. Soil moisture sludies as part of hydrological water balance, in particular the depletion and recharge processes, soi I moisture movemenl and its influence on runoff response.

Pro.iect No. 163 - (See a lso project No. 12) A. Causes of inf iltration, runoff and erosion in pumice soils.

B. Un i vers i ty of Wa i kato. C. Analysis of three years of observations on runoff plots at Otutira; 108 runs with an infi ltrometer on OtutÎra soi ls; studies of gul ly erosion in a flume. D. Selby, M. J. 1970 : Design of a hand-portable rainfal l-simulaling infi ltrometer, with trial results from the Otutira catchment. Jouzmal of HydroLogg (N.Z.) I(2), LL7-732. E. Extension of runoff analysis and preparation of report on erosion stud i es.

Miscellaneous hydrological publication no. 10 (1972) -20-

II METHODS

Pro.iect No. 109 A. A stochastic model for rainfal l. B. Applied Mathematics Division, D.S.l.R. (Dr S. F. L. Gal lot, Dr R. B. Davies). C. Models of infi ltralion of rainwater. D. None. E. Continuation of work.

Pro.iect No. 110 A. lnvestigation of Hurst effect. B. Applied Mathe,,Êtics Division, D.S.l.R. (Dr S. F. L. Gal lot, Dr R. B. Davies). C. (a) lnvestigation of slochastic rainfall models. (b) lnvestigation of long term dependence in hydrological data.

D. None. E. Continuation of work.

Pro.iect No. 28 A. An evaluation of chemical gauging techniques. B. v,/ater and soi I Division, Minisfry of works, 21 Road, Bel fast, Christchurch. C. lllork was completed and a report was published. D. Bel lamy, R. J . 1971 z An euaLuation of ehenrLeaL gaugíng techniques Hydrological research progress reporl no. 6. Ministry of Works, Wel I ingfon.

E. None. Pro.iecl No. 111 - Ho/HY/Z1 A. Appl ication of Nashrs analytical form of instantaneous unit hyd rograph . B. Wafer and Soil Division, Minîstry of V'/orks, Box 12-041 , Wel lington (R. P. lbb¡tt). C. The design procedure was tested by calchmenf authorities' '

D. None.

Miscellaneous hydrological publication no. 10 (1972) -21

E. Furlher fesfing of design procedure. Pro.iect No. 112 - Ho/Hy/2Z A. The development of a conceptual model to simulate mean flows of New Zealand rivers.

B. Water and Soil Division, Ministry of Works, Box 12-041, Wel I inglon. (R. P. tbb¡tl). C. The interceplion component of the model was completed and testing of lhe surface flow componenl began. D. lbb¡tl, R. P. 1971 z DeueLopment of a coneeptuøL nodeL of interception. Hydrological research progress report no. 5. Ministry of Works, Wel I inglon, New Zealand. E. Contînuation of work. Pro.iect No. 164 - Ho/Hy/24 A. The developmenf of a mathematical model to simulaÌe earthflows.

B. Waler and SoÌl Division, Ministry of Works, Box 1?-041, Wel lington. C, Preparation of a theoretical model to be tested by field meas u rements .

D. None.

E. Field measurements. Pro.iecÌ No. 165 - Ho/Hy/20 A. Development of hydrological stabilily constanls.

B. Water and Soi I Division, Ministry of Works, Box 12-041, Wel I ington. (8. St. C. Corcoran).

C. A mathematical model was developed which uses precipitation f low and soil moisture data to eslablish a stability conslant for hydrological reg i ons. D. Corcoran, B. St. C. 1971 : A general spatial model. Applicalion toefficientlanduse.Jout,rlaLofHydroLogyN.Z.10(2) 727-L32. E. Continuation of work.

Pro.iect No. 77 A. Generation of rainfal I effects. B. University of Auckland, Department of Civi I Engineering, Private Bag, Auckl and. (Professor A. J. Raudkivi ).

Miscellaneous hydrological publication no. 10 (1972) -22-

C. Further development of stochasfic models.

D. None. E. Continuation of work.

Pro.iect No. 81

A. Multivariate analysis of non-linear hydrologic systems. B. Universify of Auckland, Department of Civî I Engineering, Private Bag, Auckland. (Professor A. J . Raudki vi ) .

C. None.

D. Bîdurell, V. J. 1971 : Regression analysis of non-linear catchment systems. Water Resouz,ces Researeh VoL. 5. U.S. Geophysical Union.

E. None.

Pro.iecl No. 82 A. Digilal simulation of catchment behaviour. B. Civi I Engineering Department, University of Canlerbury. (4. J. Sutherland).

C. lncorporation of alternative infi ltration component into Stanford watershed model and lesting with storrn dala from three hydrologically sma I I catcirments.

D. None. E. Comparison of revised model performance with that of basic Stanford mode I .

F. Minislry of Works, catchmenl boards.

Pro.iect No. 85

A. Hydrological effects of land use changes. B. Department of Civi I Engineering, University of Canterbury. (Dr A. J. Sutherland).

C. lmproved the Laurenson model. Col lection and processing of hydrological data for more than 20 storms in the Molueka catchment.

D. None.

E. App I y a rnod i f ied vers ion of the Lau renson rnode I to the Motueka catchment; determine factors that affect loss rale; examine lhe sensitivily of the catchment to land use changes in different sub-catchments. F. Minisfry of Works, Nelson Calchment Board.

Miscellaneous hydrological publication no. 10 (1972) _23_

Pro.iect No. 115 A. High speed open channel flow on Aviemore spi I lway. B. Civi I Engineeri ng Department, UnÎversily of Canterbury. ( l. R. Wood). C. Reduction of data oblained from fiel d tests on Aviemore spi I lway. Examînation and interpretation of the data was completed. D. Hince, R. F.; Keller, R. J. 1971 : Field measurement of self- aerated high speed open channel f low. /l/.2. Engineer|ng 26(1-): 20-24.

E. Suspended. Pro,iect No. 1i4 A. lncipienf motion on a gravel bed. B. Civi I Engineering Department, University of Canterbury. (Dr A. J. Sutherl and). C. An experimental programme to investigate val idity of a theoretical model linking f low turbulence to initial motion of gravel was carrÎed out. D. lrvine, H. M. 1971: A probabilistic approach to lhe initiation of movement of non-cohesive sediments in al luvial channels. M.E. thesis, Universily of Canlerbury.

E. Suspended.

Pro.iecl No. 115 A. Velocity distribution in a tidal river. B. Civi I Engineering Department, University of Canterbury. (Dr A. J. Sutherland).

C. A section on a bend in the Heathcote River was investigaled. A detailed survey of velocities in the section lhroughout a complete tide cycle was made and results are being analysed.

D. None. E. Compilation of results and comparison with previous work on the Avon River. F. Christchurch Drainage Board.

Pro.iect No. 166

A. Radiative flux model I ing.

Miscellaneous hydrological publication no. 10 (1972) -24-

B. Geography Department, University of Canterbury, Private Bag, Christchurch. (Dr John E. Hay). C. lnstrument construction, purchasing and instal lation. Collection of radiation and meleorological data. Preparation of analytica I programmes. D. Hay, J. E. 1971 : Computation model for radiative fluxes. JouwnL of HydnoLogg (N.2.), L0(1): 36-48. E. lnstallation of additional instruments, further data collection, prel iminary analysis and model developmenl and testing.

F. N.Z. Meteorologica I Service, lnt. Assoc. of Meteorology and Atmos Physics ( I .U.G.G. ), Radiation Commission.

Pro.iect No. 86

A. The effects of spatial ly dislributed rainfal I on catchment response. B. New Zealand Agrîcultural Engineering lnstitute, Lincoln College, Canlerbury. (T. D. Heiler). C. As a result of a re-assessment of the project, the present objective of this study is to demonstrate the effect of non-uniformly distributed rainfall on the response of a linear catchment rnodel and to delermine to what extent spatial ly distributed rainfal I can compl icate the appl ication of unit hydrograph theory in praclice.

D. None. E. Publication of M.E. lhesis. F. Department of Agricultural Engineering, Lincoln Col lege.

Pro.iect No. 87 A. The assessment of a mathematical model for runoff prediction in N. Z.

B. New Zealand Agricultural Engineering lnstitute, Lincoln College, Canterbu ry. (T. D. Heiler). C. A nrodified Boughton wafer balance malhematical nrodel was filled to rainfal I runoff records from seven New Zealand calchments. Optimisation and sensitivity analysis results of parameters are presented. The model was shown to give satisfactory results in split record tests and shows promise for extending stream flow information using long term rain- fal I records.

Miscellaneous hydrological publication no. 10 (1972) -25_

D. None. E. Presentation of thesis by M. A. W. Taylor; other shorler publ ications. F. Department of Agricullural Engineering, Lincoln College.

Pro.iect No. 167 A. Concepts and techniques in integrated river basin planning. B. Agricultural Engineering Department, Lincoln Col lege, Canterbury. (Greg Pemberton, Bessel vanrl Woudt). C. The projecl is a review of techniques currently appl ied overseas with emphasis on benefit analysis and a system approach and consideration of their possible application under New Zealand conditions. Literature collection and preliminary analyses were carried out during the period.

D. None.

E. Summary of work completed and preparation of report.

Pro.iect No. 168 A. Mathematical problems of porous media flow. B. University of Waikato (Mathematics), Hamilton. C. Steady flow:

( i ) single drain in saluraled soi I (¡ ¡) several drains in saturated soi I (under consideralion).

D. None. E. Possibly time dependenf problems.

Miscellaneous hydrological publication no. 10 (1972) -26-

ENVIRONMENTAL STUDIES

Pro.iecl No. 9

i IHD experimental A. basin no . 7 - Taita. sludy of hydrologíca I effects of grass, nalive and foresl exotic forest on central yellow- i brown earths

B. Soil Bureau, D.S.l.R., privafe Bag, Lower Hutt. (Dr R. J. Jackson).

C. Routine collection and reduction of raínfall, climate, streamf low, soi I moisture, groundwater, interception and chemical balance data. D. None. E. Confinued dafa col lection and reducfion. Pro.iect No. 20 - Ch/Hy/1

A. IHD experimental basin no. 12 - Camp Stream. Study of hydrological effecls of tussock vs beech vs animal control.

B. New Zealand Forest Service, Foresl and Range Experiment Station, Box 106, Rangiora. (1. K. Rowe). c. Flow, cl imate and rainfal I observations and in camp Stream, measurements of snowpack along one course.

D. Johnson, F. A. 1970: sediment movement in a small mountain stream. N.Z. Forestry Research lnstilute Protection Forestry Report No. 86. ( Unpub I i shed ) .

Johnson, F. A. 1971 : stream temperatures in an alpine area. Joumal of Hydtology XIV( 314) : 322-556. E. Continuation of work.

F. Water and Soi I Division, Minisfry of Works.

Pro.iect No. 169

A. Purukohukohu project. FRI project Sp.9.

B. Foresl Research lnstifute, Rotorua.

C. Forest management and research in the Puruki and Puruorakau catchments are co-ordinated with the overal I hydrological objectives of the experimenfal basin.

Preliminary estimates of transpiration rates by pínus ra&Lata.

Miscellaneous hydrological publication no. 10 (1972) -21 -

Joint participalion in sfreamflow chemical analyses. Methods of assessing crown mass and tofal production by Pinus nadiata.

D. None. E. Pi lot trials of instrumentalion and recording for solar energy budget i ng. Conlinuation of joinl streamflow analyses.

F. Ministry of Works.

Pro.iect No. B - Vle/Hy/3 A. IHD experimental basin no. B - Moutere. Study of hydrological effects of cropping on grass with land management practices vs exotic fo rest.

B. Water and Soi I Division, Ministry of Works, Box 304, Nelson. (F. Scarf).

C. ln catchment 15 two graded banks were conslructed and Pinus z,a&iata planted. The remaining five Kent water-level recorders were replaced wilh Fischer and Porter event recorders. Data col lection confinued.

D. National Waler and Soi I Conservation Organisation 1971 : HgdtoLogieal researeh qnnuaL report no. 20" Moutere L970. Ministry of Works, Wel I ington.

E. Continualion of work. F. Minislry of AgrÌculture and Fisheries, Cawlhron lnslitute.

Pro.iect No. 10 - We/Hy/7 A. IHD experimental basin no. 6 - Makara. Study of hydrological effects of changes in land use - second land management cycle.

B. |Vater and Soî I Division, Ministry of Works, Box 12-041, Wel I ington. (M. E. Yates).

C. Two calchmenls were sown in Pinus ra&Lata, whi le others were cultivated and sown fo pasfure. Flow, rainfal l, cl imate, stock grazing and paslure produclion were routinely observed. There was no evidence of high soi I loss from catchments during cultivalion or cropping.

D. Yates, M. E. 1971: Effecls of cultural changes on Makara experimenlal basin. Hydrological and agricultural produclion effecls of two levels of grazing on unimproved and improved smal I catchments. JournaL of HyfuoLogy (N.2.) L0(L): 59-84. E. Continuation of work.

F. Soi I Bureau, D.S.1.R., Ministry of Agrículture and Fisheries, Lands and Survey Department, N.Z. Foresl Service.

Miscellaneous hydrological publication no. 10 (1972) _28_

Pro.iect No. 11 ' Ha/Hy/8 A. IHD experimental basin no. 4/5 - Purukohukohu. Sludy of hydrological effects of grass vs nafive foresfs vs exotic forests. B. Water and Soil Division, Ministry of Works, Private Bag, Hamilton. (H. Drost).

C. Fischer and Porter and direct-drive Lea recorders, recording evaporation pan, and Troxler neulron scatterer instal led. The spring- fed Purukohukohu catchment was compared with another smal I bush clad cafchment to test ils response to rainfall. lt was found that dry channels and springs are both fairly comrnon in the area.

D. National lVater and Soi I Conservation Organisation 1971 : Hydz,oLogieaL researeh anrruaL report no. 1-9, Puzukohukohu to 1-969. Ministry of Works, Wel I ington, New Zealand. E. Conlinuation of work. F. Ministry of Agriculture and Fisheries, Forest Research lnstitute, New Zealand Forest Service, Waikato Val ley Aufhority. Pro.iect No. 12 - Ha/Hy/1 A. IHD experimenfal basin no. 3 - Otulira. Study of hydrological effects of scrub vs grass on pumice soi ls. B. Water and Soil Division, Ministry of Works, Private Bag, Hamilton. (R. J. Pittams). C. ln Otumaroke catchment crushed scrub was burned fol lowed by top- dressing and seed sowing. Routine data col lection continued. To give an indication of the background flow of nutrienls samples were collected from lhe three experÌmental catchments with perennial flow and L. Taupo samples were analysed for phosphate, nitrate and ammoniacal nitrogen, alkalinity, hardness, chloride, pH and conductivity.

D. National Water and Soi I Conservalion Organisation 1971 : HgdzoLogícaL reseaneh qnnunL report no. 18, )tutira L969. Ministry of Works, Wel I ingfon.

E. Analysis of daTa lo establish a value for interception loss as an annual proportion of rainfal l, and during storms of different intensities and durations. Continued dala collection. F. Minislry of Agriculture and Fisheries, Geological Survey, D.S.l.R., Waikalo Val ley Authority, University of Waikato. Pro.iect No. 13 - A/Hy/z A. Sludy of hydrological effects of urbanisation.

B. Water and Soil Division, Ministry of Works, Box 5040, Auckland. (J. Waugh).

Miscellaneous hydrological publication no. 10 (1972) -29-

C. No major storms were recorded in 1971. lnslal lalion of instruments proceeded. The original experimental basin project was extended lo include six other catchments în the Auckland area. D. Nafional Water and Soi I Conservation Organisation, 1971 z HydroLogíeaL reseaz,eh qnnunL r,eport no. 1.7, Manukau Citg to L970. Ministry of Works, Wel I ington. E. Confinuafion of work.

F. Manakau City Counci l, School of Engineering, University of Auckland. Pro.iect No. 14 - A/Hy/1 A. IHD experimental basin no. 1 - Puketurua. Study of hydrological effects of scrub vs grass vs conservation treatment. B. Water and Soi I DivisÌon, Ministry of Works, Box 641, Whangarei. (J. Waugh I . C. Development to pasture conlinued. Flow duralion curves for 1965-68 were plotted. A programme of water sampl ing commenced with analysis being carried out by the Freshwater Section, Department of Scientlf ic and lnduslrial Research. D. National Water and Soi I Conservation Organisation 1911 : HydrologicaL yeseaych annuaL z,eport no. L6 Puketurua (1969-1970) Ministry of Works, We I I i ngton, New Zea I and. Francis, S. 1911 : Pukeknua mieroeLimate surueA. Hydrological research progress reporl no. 2. Ministry of Works, Wel I ington. E. Complete cultivation cycle; conlinued data collection and reduction. F. D.S. I.R. Pro.iect No. 19 - Ch/Hy/z

A. IHD experimental basin no. 14 - Adair Study of hydrological effects of grass vs cropping. B. Water and Soil Division, Minislry of Works, 2l Kainga Road, Belfast, Christchurch. (G. Martin). C. Conventional Lea-type recorders replaced the origînal twin-pens. Construction was completed. Routine dala col lection contÎnued. D. National Water and Soi I Conservation Organisation, 1971 z HydroLogi,eaL y,eseareh annuaL repoz,t no. 21, Adair 1970. Ministry of Works, Wellinglon. E. Continued data col lection. F. Lincoln Col lege, Canterbury, Soi I Bureau, D.S. l.R.

Miscellaneous hydrological publication no. 10 (1972) -30-

Proiect No. 52 - Ho/HY/1 A. Eslabl ishment of representalive basins in New Zealand. Division, Minislry of ltlorks, Box 12-041, Wellingfon. B. Water and Soil i (!,l. B. MorrisseY). C. Data colleclion and analYsis' Three furlher basins in the Blenheim, Farewel I Spit and North Kaimanawa hydrological regions were selected but not instrumented as the regions are relaf ively unimportanl' D. None. E. None. F. Regional water boards, universities, N.Z. Forest Service. Pro iecl No. 117 - Ch/HY/a A. Hydrology of wet and dry hi I I slopes - Adair' B. water and soi I Division, Ministry of works, christchurch. (G. Marlin). C. Soil rncisture measurements continued with neutron scatfer (on a reasonably regular basis) and gypsum block methods'

D. None. E. Continuation of work. Pro.iect No. 118 - Na/HY/7 A. IHD experimenlal basîn no. 9, stage I - MangaTu. Study of hydrological effects of grass vs exotic foresls on argi I I ites' B. water and Soi I Division, Ministry of works, Box 143, Napier. (P. J. Grant). C. A detai led survey was completed and maps drawn. Because of numerous springs and seepages, monitoring began in one large spring zone adjoining two basins fo detérmine its souice. Soil nroisture measurements (gravimetric method) were commenced at three sites. D. None. E. Continualion of work. F. N.Z. Forest Service. Pro.iect No. 119 - Ch/Hy/B ¡ A. A hydrological sludy of the Waitangi-roto calchment, South Westland. B. Waler and Soî I Division, Ministry of Works, Box 12-041, Wel I ington. (bl. B. MorrisseY).

Miscellaneous hydrological publication no. 10 (1972) -31 -

C. lnstal lation of rainfal I recorder and storage gauges. Prel iminary water balance calculalions and examination of the base flow recession showed the presence of significant influent groundwater.

D. None. E. To be completed. F. Botany Division, D.S.1.R., Lands and Survey Department, Westland Calchment Board.

Pro.iect No. 170 - Dn/Hy/4

A. IHD experimental basin no. 16 - Manorburn. Study of hydrological effects of land management practices on a tussock association. B. Water and Soi I Division, Ministry of Works, Box 451, Dunedin. C. The basis of acquisition of the lessorfs interests has been agreed to and the legal aspects will be formalised in 1972. A meeting of co-operating'arties was held to programme the finer delails of research.

D. None. E. Further preparation of work.

F. Otago Calchment Board, D.S. I .R., Otago Unîversîly, Tussock Grasslands and Mounïain Lands lnstitute. Pro.Ìect No. 171 - Na/Hy/9 A. Ngahere representative basin sludy of the hydrology of native beech forest. B. Water and Soil Division, Minislry of Works, Box 143, NapÎer. (P. J. Grant). C. Vegetation mapping and reporf, installation of interception plot, soi I moi slure samp I í ng.

D. None. E. Continuation of work.

Pro,iect No. 71

A. Chi lton Val ley Project. B. Deparlment of Geography, University of Canterbury, Christchurch. C. Studies of relalionships between rainfal l, runoff and infi ltration. D. Soons, J. M., 1971 : Faclors involved in soil erosíon in the Southern Alps, New Zealand. ZeitzchrLft fur geomorphoLogíe 15(4): 460-470 (GermanY). E. Continuation of observalions.

Miscellaneous hydrological publication no. 10 (1972) -32-

Pro.iect No. 172 A. paddle Hi I I Creek - a co-operative programme of ecosystem research. B. Tussock Grasslands and Mountain Lands lnstifute, Box 56, Lincoln Col lege, CanterburY. (J. A. HaYward). c. observations of cl imate; soi I characterisation; mapping of geological features; produclivily and nutrient cycl ing of ChionoehLoa rLgída and C. ma,c?a, grasslands.

D. None. E. Continualion of above work; study of feasibi I ity of developing a digital model lo simulate parl or al I of this ecosysfem.

F. New Zea I and: Lincoln col lege, canterbury university, otago university.

Overseas : United States l.B.P. Grasslands Biome, Forl Collins, Colorado.

Pro iecï No. \20 A. Hydrological investigations of Tuapaka catchment - an experimenfal basin. B. Geography Departmenl, Massey university, Palmerslon North C. lnsfallation of rfV-nolchfr weir, three autographic (monthly) rain gauges, and wind recorder, to supplement manual rain gauges, read weekly.

D. None. E. Meleorological instrumentation; stream flow and rainfal I data to be ana I Ysed.

Pro.iecl No. 5 A. Water balance studies in low alpine snow tussock grassland in Centra I Otago. B. Botany Department, University of Otago. C. Maintenance and regular servicing, also installaTion of a bare soil treatmenl in December, 1969.

D. None. E. Continualion of Project.

Miscellaneous hydrological publication no. 10 (1972) -33-

Pro.iect No. 173 A. Coriaria - ecosystem study on Mt. Egmont. B. Geology Deparlment, Victoria University of Wel I ington. (V. E. Neall). C. An invesligation of a Coriariø-nìoss ecosystem on the north-west slopes of Mt. Egmont, was conducted between 1968-72. The ecosystem was investigated at an altitude of 1,2O0 m, and is developed uPon an BO-year old debris f low. Runoff samples from fwo lysimeters (one dominantly CoriarLa, the other dominantly moss) were collecled at monthly întervals for a period of 1B months, together with raînfal I samples. Selecfed stream samples 1aere also col lected from Maero Slream and Stony River. Samples were analysed for Na, K, Ca, Mg, N, P, and Cl.

D. None. E. Analysi; of resulfs.

Pro.iect No. 6 A. Ecological study of Waikoropupu Twin Springs, Takaka.

B. Cawthron I nsti lute, Ne I son.

C. Species I ists and maps of the aquatic vegetation al various seasons were prepared together wîth lists of animal species and fhe communities associated with particular plant species. Biomass and productivity estimations were made.

Data was examined to determine what ecological factors, in this environment of conslant temperature and nutrient conditions affect growth and reproducfion of aquatic animals.

D. None. E. Critical analYsis of dafa.

Miscellaneous hydrological publication no. 10 (1972) -34-

I.IATER RESOURCES

Pro.iecl No. 47

A. So i I nro i slure slud i es.

B. Winchnrore lrrigalion Research Station, Department of Agriculture, t Privale Bag, Ashburton. (D. S. Rickard, P. D. Fitzgerald). C. Calculation of changes in soi I moislure on the irrigated and non-irrigated areas of Mid-Canterbury completed for a period of 41 years. Information obtained also gives data on i rrigalion frequencies, infervals between i rrigations, days above several deficit levels and runoff under various i rrigation regimes. D. Rickard, D. S.; Fi'lzgerald, P. D. 1971 : Soil rnoisture and pasture growth in Canlerbury. Pxoceedings Síæth Neu ZeaLxnd GeognøPhY Confenence, 20L-208. E. Analysis and publ ication of results.

Pro iect No. 121 A. lnvestigation of wafer requirements of crops. B. Winchmore lrrigation Research Station, Deparlment of Agriculture, Privafe Bag, Ashburton. (E. G. Drewitt, C. G. Janson, D. S. Rickard, R. Sloker). C. lnvestigation of lhe response of crops lo irrigation at various moisture levels and physîological stages of growfh. Crops investigated include wheal, polatoes, peas, barley, beans, rice, maize, sunflowers and lucerne. Assessment is made of lhe effect on quality as well as on yield.

D. None. E. Continuation and expansion of above programmes. Measurement of plant-water stress as affected by the various irrigalion treatments.

Pro,iect No. 122 A. Historical retreat and advance of glaciers.

B. New Zealand Geological Survey, Box 90, . (W. A. Sara). C. A watch on the glaciers conlinues. D. None. E. As above.

Miscellaneous hydrological publication no. 10 (1972) -35'

Pro îect No. 123 A. Glaciological studies on Tasman glacier. B. New Zealand Geological Survey, Box 5342, Dunedin. ( I . C. McKel lar). C. Wriling up of the project is sti I I delayed.

D. None. E. Complete rePort.

Pro.iect No. 124

A. Groundwater resources, Norlh I and. B. New Zealand Geological Survey, Box 61-012, Olara. (8. C. Walerhouse). C. Accumulation of dala on groundwaler in permeable and fissured rocks of Northland.

D. None. E. ContÎnuation of work.

Pr.o.iect No. 125 A. Regional study of groundwater of Hami lton Lowlands.

B. New Zealand Geological Survey, Box 61-012, Otara' (J. C. Schofield). c. Field work complete, publication proceeding. A bullelin has reached fhe page Proof stage. D. None. E. Publ ication of results.

Pro.iect No. 126 A. Southern Norlh lsland groundwater. B. New Zealand Geological survey, Box 30-368, Lower Hutt. (T. L. Granl-TaYlor). C. Advice to the Manawatu Catchment Board and lo local bodies in Wa i rarapa conti nued.

D. None. E. Continuation of work.

Miscellaneous hydrological publication no. 10 (1972) '36-

F. Hawkes Bay, Manawatu and l'/airarapa Catchment Boards. lnsf itute of Nuclear Science (trilium).

Pro,iect No. 127 A. Groundwater survey, Waimea Plains and Nelson. B. New Zealand Geological Survey, Box 376, Nelson. (M. R. Johnston). C. Nelson Catchment Board is dri I I ing lo determine extent and avai labi I ity of groundwaler in the Nelson area. Geological evaluation by Geological Survey.

D. None. E. Continuafion of work.

F. Ne I son Catchrnent Boa rd .

Pro.iect No. 128 A. Groundwaler resources of Wai rau Plains. B. New Zealand Geological Survey, Box 1471, ChrÎslchurch. (1. J. Brown). C. A preliminary report was prepared for publicalion and is now in p ress .

D. None. E. Publ ication. F. Marlborough Calchment Board,i

Pro.iecl No. 129

A. Eval uation of groundwater resources in the immediate vicinity of Christchurch citY.

B. New Zealand Geological survey, Box 1471, Christchurch. (L. J. Brown, D. D. Wi lson). C. Maps at 1:25,000 being prepared for publication presenf information regarding groundwaler occurrence near Christchurch. They wi I I also serve as induslrial geological maps of the christchurch area.

Bul k of data presentation completed.

D. None. a E. Continuation of preparaf ion for publication. F. Assistance by local bodies and governmenl departments.

i-

Miscellaneous hydrological publication no. 10 (1972) -37'

Pro iecl No. 130 A. A regional sludy of groundwater in Canterbury (from Kaikoura lo the south bank of Waitut,¡ River) including well observations and data compi lation.

B. New Zealand Geological survey, Box 1471, Christchurch. (D. D. V'lilson, L. J. Brown)' C. Groundwater wel I observations conti nued'

Compi lation of maps at 1:631360 continues'

D. None. E. Continuation of work.

Pro îect No. 131 A. lnvesligations of groundwater, particularly near Oamaru. B.NewZealandGeologicalSurvey,Box5342,Dunedin' (4. R. Mutch). C. The determination of slructure contours of aquifers below inlensive market-gardeni ng areas near Oamaru'

D. None. E. Continuafion of work. F. Otago Catchment Board.

Pro.iecf No. 132 Groundwaler stuciy of a represenlative karst basin in King country A. stream' wifh both fissured I imestone and greywacke basemenl, Manakowhai B.NewZealandGeologicalsurvey,Box6l-012'Olara' (1. 0. Kermode). c. Geological reconnaissance and determination of boundaries of both the surface and subterranean watersheds'

D. None. E. Continualîon of work. F. Ministry of Works Hydrological Survey' Hamilton' New Zeaiand Speleological Society, Auckland'

Pro iecl No. 133 A. Geothermal resources of New Zealand' Lower Hutt and Box 499, B. New Zealand Geological Survey, Box 30-368, Rotorua. (l.A.NairnrE.F'LloydandJ'Healy'Rotorua;P'R'L'Browne' Lower Hutt).

Miscellaneous hydrological publication no. 10 (1972) -38-

C. Continuation of resource studies in Rolorua region. D. None. E. Continuation of work. ' Prcr.iect No. 22 - Na/llY/3 A. Rainfal I patterns in remote regions. B. Waler and Soi I Division, Mînisfry of Works, Box 143, Napier. (P. J. Granl). C. For the Ruahine Range provisional normal annual rainfal I values were derived and a patlern mapped to assist with the Hawkes Bay water resources project.

D. None. E. Continualion of work. F. New Zealand Foresf Service, Tramping and Deerstalkers Clubs, Urewera National Park Board.

Pro.iecl No. 43 - Ha/Hy/3 A. Water balance studies in Lake Ro-lorua.

B. Water and Soi I Division, Ministry of Works, Prîvate Bag, Hami lton. (R. J. Pittams). C. Further investigations were made into lhe problem of seepage from Lakes Rolorua and Rotoehu.

D. None. E. Continuation of work. Pro.iect No. 50 - C\/HV/3 and Ch/Hy/l A. lvory glacier project. B. Water and Soi I Division, Ministry of Works, Box 1479, Christchurch. (T. J. Chinn). C. A network of accumulation and ablation poles was mainlained throughout lhe year for mass balance measurements. Ofher measurements including radiation, rainfall, and water-level (lvory Slream) were also made.

D. None. E. Continuation of observalions.

F. IASH Committee on Snow and lce;Geology and Geography Departments, Canterbury Un i vers i ty; Geography Department, Massey Un i vers i ty; Forest and Range Experiment Station, NZFS, Rangiora; N.Z. Geological Survey, D.S.l .R., Duned i n.

Miscellaneous hydrological publication no. 10 (1972) -39-

Pro.iecl No. 55 - Na/Hy/Z A. Water resources project, Hawkes Bay. B. wafer and soi I Division, Ministry of works, Box 143, Napier. (P. J. Granl).

C. Broad I ithologic mapping (1:253,000) was comp leted. Accumulaled series of low flow values were mapped in readiness for analysis and transformation to values for different return periods (2, 5 and 10 years).

D. None. E. ConTinualion of work. F. Regional water boards, New Zealand Foresl Service, universities. Pro.iect No. 54 - Ha/Hy/10 A. Water resources project, Hami lton. B. Water and Soi I Division, Ministry of Works, Private Bag, Hami lton. (H. Drost). C. A provisional minimum flow map was drawn up.

D. None. E. Work on the preparalion of flow maps showing specîfic discharge i sohyds. F. Regional waler boards. Pro.iect No. 55 - A/Hy/7 A. Water resources projecl, Northland. B. Water and Soi I Division, Minisfry of Works, Box 461, Whangarei. (J. Waugh). C. Work continued on mapping minimum and mean waler yields for recurrence intervals of 5, 10 and 20 years.

D. None. E. Confinuation of work. F. Northland Regional Water Board. Pro.iect No. 56 - Wa/Hy/1 A. Waler resources project, Taranaki. B. Wafer and Soi I Division, Ministry of Works, Privale Bag, Wanganui. (W. B. MorrisseY) .

Miscellaneous hydrological publication no. 10 (1972) -40-

C. A provisional map showing long term mean annual flows as specific discharge isol ines ( isohyds) was prepared.

D. None. E. Furfher field investigations to evaluate disparity in the calculated specific discharges of many catchments.

F. New Zealand Forest Service, universities. Pro.iect No. 57 - Na/Hy/1 A. Groundwaler sludy, Heretaunga Plains. B. Waler and Soil Division, Ministry of Works, Box 143, Napier. (P. J. Grant).

C. A number of invesligation wel ls were sunk in the unconfined groundwater area aboul the recharge zones.

D. None. E. Further investigation. F. Heretaunga Plains Underground Waïer Authority. Pro.iect No. 58 - Dn/Hy/3 A. Upper Taieri water balance and water resources.

B. Water and Soi I Divísion, Ministry of Works, Box 451, Dunedin. ( l. Simmers). C. Preparation of reporf

D. Hutchison, P.; Simmers, I . 1971 : A modi fied catchment model of the upper Taieri River, Otago, New Zealand. JowmaL of HydroLogy (N.2.) 10(1): 2-27. E. Project completed. F. Otago University. Pro.iect No. 59 - We/Hy/9 A. Waler resources project, Nelson/Marlborough.

B. Water and Soi I Division, Ministry of Works, Box 304, Nelson. (F. Scarf).

C. Base flow recession constants at some 50 sites in the Nelson districl were determined. lt was shown that a new hydrological region, the Nelson ultramatic, was requi red. Average annual flow mapping of this region was completed. '

Miscellaneous hydrological publication no. 10 (1972) -41

D. None. E. Average annual flow mapping for remaining three Nelson hydrologÌcal reg i ons. F. Nelson and Marlborough Regional Waler Boards, Cawfhron lnstitute.

Pro.iecl No. 60 A. Surface waler resources, Soulh Canterbury. B. Waler and Soil Division, Ministry of Works,21 Kainga Road, Belfast, Chrislchurch. (G. N. MarlÎ n ) . C. Establ ishmenf and rating of temporary flow-measuring stations.

D. None. E. Eslablishmenl of evaporation, precipitation, allitude relations. Extending short-term records by reference to long-lerm records of rainfal I and runoff. Pro.iect No. 134 ' A/Hy/6 A. Groundwater survey, Puketurua experimental basin' B. Water and Soi I Division, Ministry of Works, Box 461, Whangarei. (J. Waugh). C. Weekly readings continued at 11 deep bore holes (commenced 1968), while chari records were oblained from one site (bore 4), in an area of greensand.

D. None. E. Continuation of work. Pro.iect No. 135 - A/HV/5 A. Rainfal I samPl ing, Pukefurua. B. Water and Soi I Division, Ministry of Works, Box 641, Whangarei. (J . R. V'laugh ) . c. Re-installalion of ground-level gauges to conform lo wMO specifications.

D. None. E. ConÌinue data col lection from re-instal led gauges'

Pro.iect No. 174 A. Water resources in New Zealand. B. Water and Soi I Division, Ministry of Works, Box 12-041, Wel I ington Norlh. (C. Toebes). Miscellaneous hydrological publication no. 10 (1972) -42-

C. The surface water resources of New Zealand in terms of stream flow have been mapped fo a scale 1:1,000,000 and the discharges^of all rivers flowing into the sea and having a catchmenl area > 50 km¿ have been ca I cu I ated.

D. None. E. Publ ication of surface waler resources map and discharges of rivers f I ow i ng i nto the sea. Calculalion of water balance of New Zealand and residence times of water storages in New Zealand. Pro.iect No. 175 - Ha/Hy/9 A. Ohote rePres€nlatÎve basin peaf study. B. Ministry of Works, Private Bag, Hami lton. (8. H. Knowles). C. Preliminary s;udy of area, selection of approximafe transect and bench mark positions.

D. None. E. Soi I sampl ing and water depth invesligation.

Pro.iect No. 176 A. lnvestigation of the groundwater contours in the Waipara area. B. Agricultural Engineering Department, Lincoln Col lege, Canterbury. (C. B. Judd). C. Waler levels were measured simultaneously in 18 wel ls. Ground level at the wells and water levels in adjacent creeks, were determined. A contour plan was drawn showing groundwater contours and the relation- ship between groundwater and surface wafer.

D. None. E. Conclusion of project and publ ication of report with I imited distribution.

Pro.iect No. 136 A. Waler resources of supply catchments near hlhangarei. B. Northland Catchment Commission. C. Quantitive measurement of stream flows issuing from springs having their origin in volcanic formations to obtaÎn minimum actual water yields.

D. None.

E . Conl i nuat i on and comp I et i on of p rogramme.

Miscellaneous hydrological publication no. 10 (1972) -43-

I,IATER QUALITY

Pro.iect No. 67 A. Analysis of river and lake walers. B. Chemistry Division, Department of Scientific and lndustrial Research, Chri stchurch. C. Chemical and bacteriological analyses of river and lake waters in the Canterbury, |Vestland, Nelson and Marlborough provinces.

A publ ication is being PrePared.

D. None. E. Continuation of work.

Pro.iect No. 68 A. Studies of the qual ity of drinking water suppl ies. B. Chemistry Division, Department of Scientific and lndustrial Research, Petone.

C. Approxi mate I y 1 ,000 samp I es ana I ysed.

A publication is being PrePared.

D. None. E. Conlinuation of work.

Pro.iecl No. 69 A. Development of analylical methods for testing water qual ity. B. Chemislry Division, Deparlment of Scienlific and lndustrial Research, Petone. C. Samples ci rculated to each of the four Chemistry Division laboratories have been analysed to determine the precision and accuracy of methods presenlly used for 22 constituents comnìonly determined in walers. Results for low levels of phosphorus and nitrate were unsat i sfactorY.

D. None. E. Continualion of comparative studies after improvements in methods for nîtrate and phosphorus. Extension of comparative analytical studies to include al I interested laboratories in New Zealand.

Miscellaneous hydrological publication no. 10 (1972) -44-

Pro.iect No. 137 A. Survey of water qual ily in the . B. Chemistry Division, Deparlment of Scientific and lndusfrial Research, Auckland. C. Chemlcal and bacferlologlcal analyses of water collected at selected sample points along lhe Waikato River. D. Tables of results obtained during two surveys are avai lable to i nterested parties. E. Continuation of the project to obtain base-l ine data of interesl in the long term.

Pro.iect No. 61 A. Use of environmenlal trif ium in hydrological studies.

B. Tritium Laboratory, lnstitule of Nuclear Sciences, D.S. | .R., Private Bag Lower Hutl. (Dr C. B. Taylor).

C. Problems sludied incl ude: Estimalion of travel times within aquifers; surface runoff contribution to rivers; measurement of tritium at different levels of new artesian dri llholes as an aid to determining suitable levels for new draw-off; measurement of pre-thermonuclear tritium levels within suilable aquifers by sampl ing at special infervals from recharge points; geofhermal waters; contribution of vapour exchange to tritium balance of lakes.

D. None. E. Simi lar studies are continuing.

Pro.iect No. 62

A. Measurement of tritium deposition in the South Pacif ic area.

B. Tritium Laboratory, lnslitule of Nuclear Sciences, D.S. | .R., Private Bag, Lower Hutl. (Dr C. B. ïaylor). C. Measurements of tritium in precipilation have been carried out since 1958. Present stations for nronthly collec-lions include Tarawa, Fiji, Rarolonga, Kaitaia, Kailoke, lnvercargil l, Campbel I lsland, Melbourne, Darwin, Alice Springs, Adelaide.

D. Taylor, C. B. 1971: lnfluence of 1968 French thermonuclear lests on trilium fallout in the Southern Hemisphere. Earth qrtd PLm,etang Seienee Letters, 1-0: 1-96-798. E. Routine measurements are continuing. F. lnternalional Atomic Energy Agency, Vienna: worldwide survey of lritium in precipitation.

Miscellaneous hydrological publication no. 10 (1972) -45-

Proiecl No. 63 A. Measurement of tritium in rivers' B. Tritium Laboratory, lnstitute of Nuclear Sciences, D.s.1.R., Privale Bag, Lower Hult. (Dr C. B. TaYlor). C. Rivers have not been measured with a view to estimating the discharge of tritium to the oceans, but rather in the context of hydrological studies in particular areas'

D. None. E. Rivers will be sampled only as part of hydrological invesligations in particular areas.

Pro.iect No. 1 58 A. Sludy of hydrogen and oxygen îsolopes in Anlarctic snow and firn" B. Tritium Laboratory, lnstitute of Nuclear sciences, D.s.1.R., Private Bag, Lower Hutt. (Dr C. B. TaYlor). C. Detailed sampling carried out from fresh pits on Ross lce Shelf and at South Pole. D. None. E. lsolopic analyses on col lected samples to be completed.

Pro.iect No. 177 A. Hydrological sludies using oxygen-lB' B. Trilium Laboralory, lnstitule of Nuclear sciences, D.s.l'R" Privale Bag, Lower Hutt. (Dr C. B. TaYlor). C. A survey of 180 ratios in South Pacific waters is beîng constructed.' special studies are being made in some New Zealand areas' particularLy witi-r respect to rivers, precipitation and origin of ground- walers. These sludies supplemenl trili um data' D. None. E. StudY continuing. Pro.iect No. 'l 78 A. The residence time of effluenl in the River' B. lnstitute of Nuclear Sciences, D.S.l.R., Privale Bag, Lower Hutt. (W. J. McCabe).

Miscellaneous hydrological publication no. 10 (1972) -46-

C. The mean residence time of effluent discharged into the river at a poinl lhree miles above its confluence with the Oreti River was determined using a radioactive tracer. A mathematical model was constructed from the daÌa obtained. D. McCabe, W. J. et al 1971: The radiometric determination of effluent bui ld-up in the - lnstitute of Nuclear Sciences, D,S.l.R. Report No. 104. E. Project completed.

F. The Al I iance Freezing Co. (Southland) Ltd.

Pro.iect No. 179 A. Radioactive studies of eff luent dispersion and dilulion in the lower Wanganui River. B. lnstilute of Nuclear Sciences, D.S.1.R., Private Bag, Lower Hutt. (W. J. McCabe). C. Di lution ratios and eddy diffusion coefficienls for effluenf discharged from a number of proposed emergency overflow points for the new sewage scheme in Wanganui were determined. A test made from a proposed marine outfal I confi rmed thal the eddy diffusion coefficient varies as the 4/3 power of the scale of the phenomena.

D. None. E. Publication of results.

F. Worley, Downey, Mui r and Associates, Auckland. Vlanganui City Counci I .

Pro.iect No. 180

A. Eff I uent d i spers ion stud i es on the Manukau Harbour. Nuclear Sciences, D.S.l.R. Privafe Bag, Lower Hutt. B. lnslitute of , i (W. J. McCabe).

i C. The first of a series of radioaclive Ìracer tesls, designed to assist in the study of the dispersion patterns of effluenT from the Manukau treatment plant, was made.

D. None.

i Further tracer tests under various tide condilions are planned. E. i

F. Auckland Regional Authority. ] Pro.iect No. 181 t A. Chemical runoff from land undergoing changed use. (See also projecl no. 14). . =- B. Freshwater Section, Ecology Division, D.S.l.R.

i

Miscellaneous hydrological publication no. 10 (1972) I -47-

C. Chemical runoff before and after l.iming and superphosphate appl ication.

D. None. E. Continuation of work. F. MinistrY of Works.

Pro.iect No. 182 A. Chemical runoff from land under different lypes of use. (See also project no. 9). B. Freshwater Seclion, Ecology Division, D'S.l'R' C. Flux of rreactiver phosphorus in four catchments'

D. None. E. Extension of work to include total phosphorus, total dissolved phosphorus, nitrate-nifrogen, ammonîa nilrogen; effects of appl ication of I ime and superphosphate to one catchment'

Pro.iect No" 45 A. Limnological budget for Lakes Rotorua and Rotoili, Norlh lsland, New Zealand. B. Fisheries Research Division, Ministry of Agriculture and Fisheries, P.0. Ngapuna, Rotorua. C. All data collected during fhe survey from 1967 lo 1970 were analysed and a final report was submifted to the Director, Fisheries Research Division, at the end rf the year.

D. None. E. ProjecÌ is comPleted. Pro.iect No. 16 - Vle/Hy/6 A. Nutrient movement on sprinkled plols, Moulere' B. waler and soil Division, Ministry of v,/orks, Box 304, Nelson. C. Analysis of hydrograph records from rainfal I simulator lests on six plols.

D. None. E. Presenlalion of thesis; continualion of work' Pro.iecl No. 51 - Ho/Hy/9 A. sediment sampl ing techniques using radioaclive sources. B. Water and soi I Division, Minisïry of works, Box 12-041, Wel I ingfon' (W. B. MorrisseY ) .

Miscellaneous hydrological publication no. 10 (1972) _48_

C. A final reporf was completed. A high voltage electrical component failed during a f lood on 3 May 1971. However, it was concluded ti-rat by comparison with conventional methods, radioisotope methods are entirely justified.

D. None. E. Project is completed.

F. lnïernalional AÌomic Energy Agency, Vienna. Pro.iect No. 70 - Dn/Hy/1

A. C I ufha sed i ment ba I ance.

B. water and soi I Division, Ministry of works, Box 451, Dunedin. ([ll. Harri son, M. J . Cunn i ngham) .

C. Standard suspended sediment sampl ing; confirmation of sedîment ratings at selected sites.

D. None. E. Bed load analysis in upper Kawarau-shotover area; further sediment sampl ing.

F. New Zealand Geological Survey, D.S.l.R. New Zea land Electricity Department. Pro,iect No. 159 - Na/Hy/4

A. Sediment transport, Waipaoa River.

B. lvater and soil Djvision, Ministry of works, Box 143, Napier. (P. J. Grant).

C. lnstallation of equipmenÌt llow and sedîment gaugings. D. None.

E. Continuation of work.

F. Poverty Bay Catchment Board.

Pro.iecl No. 2

A. Biology of submerged exotic and indigenous water weeds in the Rotorua and Waikato hydro lakes. B. Botany Department, Auckland University.

C. 1. Continualion of study of întroduced aquatic submerged weeds with reference to physical factors of the environment. 2. Ef fect of dense weed beds uporr 02 r.eginre of waler. 3. Study of Myt"iophyLLwn bz,asiLiense.

Miscellaneous hydrological publication no. 10 (1972) -49-

D. None. E. 1. Continuation of (1). 2. Energy flow in system : water weeds - grass carp - decomposition of excrefa. 3. Nufrient uPlake bY waler weeds. F. Fisheries and Freshwater Division, Department of Natural Resources, Michigan Stale University, Easf Lansing; New Zealand Electricity Department; Department of Scientific and lndustrial Research; Minislry of Agriculture and Fisheries.

Pro.iecf No. 183 A. Fate of diquat when used as a herbicide in the Rolorua lakes. B. Botany Deparfment, Auckland University. C. Analyses of water, plant and lake bed samples at given dates, before, during and after sPraYing.

D. None. E. Expecfed to complete Project.

Pro.iect No. 184 A. Anaerobic-aerobic conlact melhods of treafing waslewaters under fluctuating loadings. B. Civi I Engineering Deparlmenf, Auckland Universily. (1. W. Gunn). c. Pi lol plant set-up. Note fluctuating loadings are of the type experienced in hol iday areas. D. Gunn, l. W. 1971 : Wastewafer disposal from hol iday areas. N.Z. Suvueyor 26(5) 469-477.

E. Commencement of pi lol plant sludies.

Pro.îect No. 140 A. Ecology of the Avon and Heathcote Rivers and the Avon-Heathcote Estua ry . B. Zoology Deparlment, university of canlerbury, christchurch. C. Continuation of work on: biology of the Bromley Oxidalion Ponds nutrient levels in the rivers and estuary nutrient levels in the sediments ecology of the green algae biology of lhe O-grouP flounders biology of the benlhic fauna.

Miscellaneous hydrological publication no. 10 (1972) -50-

D. None. E. Confinuation of work.

Pro.iect No. 141

A. Limno log ica I slrtdy of Lake Grasmere and Lake Pearson, CanTerbury. B. Department oÍ Toology, University of Canterbury. (Dr V. M. Stout). C. Complelion of delai led programme on Lake Grasmere, and commencement of regular npnthly nronitoring programme. Beginni.ng of simi lar programme on nearby Lake Pearson.

D. Stout, V. M. ( in Press). Plankton composition in relation fo nutrient inf low in a small New Zea I and I ake. Verh. int. Ver. Limnol., 18. E. fr4onthly monitoring programme on Lake Grasmere. Physical, chemical, biological (including productivity) sludies on Lake Pearson. F. Chemistry and Ecology Division, D.S. I .R., Chrislchurch; Botany Department and Forestry School, University of Canterbury.

Pro.iecl No. 142 A. Limnological study of some South lsland hydro-electric lakes. B. Departmenl oÍ Zoology, Universily of Canterbury. (Dr V. M. Stoul). C. Further visils to Waitaki hydro-electrîc lakes. Analysis of data col lecled.

D. None.

E. Commencement of doctoral thesis on lhe Waitaki hydro-electric lakes. F. Chemistry and Ecology Division, D.S.l.R., Chrislchurch; New Zea land Electricity Department.

Pro.iect No. 143 A. Limnological studies of some WesT Coast lakes, South lsland. B. Departmenl of Zool.ogy, University of Canterbury. (Dr V. M. Stoul). C. Analysis of dala and preparaf ion for publicalion.

Miscellaneous hydrological publication no. 10 (1972) _51

D. None.

E. Project comp lefed.

F. Chemistry and Ecology Division, D.S. I .R., Christchurch; Weslland Nafional Park Board.

Pro.iect No. l85

A. Limnological studies on Lakes Monowai, Manapouri and Te Anau. B. Department of Zoology, University of Canterbury. (Dr V. M. Stout).

C. Physical, chemical and biological analyses.

D. None. E. Continuation of work. F. Chemisfry Division, D.S.l.R., Chrisfchurch; Dr E. A. Fl int, Ecology Division, D.S.l.R., Christchurch; Fiordland National Park Board; New Zea land El ectricity Department.

Pro.iect No. 4

A. Productivify and dynamics of colonisation by Tgpha oyientaLis on coastal dune lakes.

B. Department of Botany and Zoology, Massey Universily, Palmerslon North. (J. Ogden).

C. Further estimates of rate of shoot production and of underground biomass were obtained. An experiment to estimale the decay rate of dead Typha was completed. Experimental stands oÍ Tgpha (in tanks at Massey) have been establ ished.

D. None. E. With the exception of the experimental sfands the above project is to be drawn to its conclusion and results publ ished. F. Botanicky Ustav Csar, Trebon, Czechoslovakia.

' Pro.iect No. 186

A. Pollution in Wainuiomata Slream.

B. Zoology Department, Victoria Universily of Wel I inglon. C. Analytical and biological investigations.

D. None. E. Continuation of work.

Miscellaneous hydrological publication no. 10 (1972) -52-

Pro iect No. 144 A. production studies of zooplankton in Lake Rototoa, South Kaipara peninsula, Auckland. B. school of science, university of ltrlaikato, Hami lton. (Mr J. D. Green). C. Laboratory sfudies on feeding ratesr_ Particle sizg selection, respi ration raíes and growth rates of CaLønoeeia Lucasi (Copepoda; Calanoida). Analysis of population dynamics of the f ield populalion. D. None. E. Completion of writing up this work'

Pro iect No. 145 A. production studies of plankton in lakes of lhe Rotorua area. B. School of Sci:nce, University of Waikato, Hami lton. (Dr M. A. ChaPman). C. Completion of paper on zooplankton production' D. None. E. Further studies on the trophic relations of the zooplankton will be carried out in the summer of 1972-73; publication of paper. F. Ministry of Agriculture and Fisheries (G. R. Fish, Rotorua).

Pro.iect No. 1 87 A. Zooplankton studies on Lakes Rotoaira end Taupo' B. school of Science, university of waikato, Hami lton. (Dr M. A. ChaPman). C. Studies of the seasonal abundance of zooplankton with parlicular emphasis on BoeekeLLa ProPínqua. D. None. E. Laboratory analYsis of data. F. Ministry of Agriculture and Fisheries (E' Cudby) '

Pro.iect No. 1 BB A. Phytoplanklon ecology of the Rotorua lakes' B. University of Waikato, Hami lton' ( M. A. Chapman , A. S . Ednronds, J ' Baa rs ) '

Miscellaneous hydrological publication no. 10 (1972) -53-

C. A programme of regular, fortnightly surveys of the species and abundance of phytoplankton at several permanent stations in Lake Rolorua and Lake Okatira has commenced. Dala on physical and chemical properties of the lake water is also being accumulated.

D. None.

E. Surveys wi I I be continued throughout this period and measures of phytop I ankton productivity attempted.

Pro.iect No. 189 A. Studies on lhe limnology of l¡Vaikato Bog Lakes. B. School of Science, University of Waikato, Hamî lton. (Dr M. A. ChaPman, Mr J. D. Green). C. Prel iminary surveys of selected lakes.

D. None. E. Producfion studies of Lake D wi I I be undertaken.

Pro.iect No. 190 A. Analysis of nifraTe in groundwater. B. School of Science, Universily of Waikato, Hami lton. (Professor A. T. Wi lson, H. L. Baber). C. Survey of groundwater in Waikato for nîlrate.

D. None. E. None.

Pro.iect No. 191 A. Physiology of aquatic macrophyles. B. School of Science, University of Waikalo, Hami lton. (Dr S. W. Cowl ing, Mr A. S. Edmonds). C. The equipment to construct a flowing nutrient culture apparafus to simulate river conditions is being assembled. This equipmenl will control flow rales, nutrient concentration, temperature, I ight intensity and light quality.

D. None. E. lnitially lhe physiological oplima of CeratophyLLun d.emetsum will be investigated.

Pro.iect No. 7 A. Survey of water quality in rivers of Nelson province and effect of agricultural praclices and induslrial use. B. Cawthron lnstitule, Nelson.

Miscellaneous hydrological publication no. 10 (1972) I

rl

-54-

C. A delailed study of the Waimea Plains area with parlicular reference lo the relationships between agricultural practice, soil type and nitrification in groundwaters.

D. None. E. Continuation of work. Pro,iect No. '192 A. lnvestigation of hYdrosoi ls. B. Cawthron lnstitute, Nelson. C. Prel iminary investigalion of the sedimenfs in Lakes Rotoroa and Rotoiti, Nelson to eslabl ish physical and chemical characteristics as base informalion for microbiological invesfigalion and to determine the relationship of sedimenls lo the location and growth of weed beds.

D. None. E. Continualion of work.

Pro.iect No. 193 A. Microbiological utilisation of organic and mineral nutrients in freshwaters and its relation to the process of eutrophication in enriching wafers.

B. Cawlhron I nst i tute, Ne I son. C. Using a kinetic approach, based on the enzyme-subslrate relation- ship eslablished by Michaelis and Menten, a study is being made of the uti I isation of C14 label led organic subslrates by micro-organisms in .

Scinti I lation counting method is used to provide a measure of heterotrophic potential, rate of mineralisation and turnover time. Paral lel with these studies an autoradiographic lechnique is being used fo determine heterotrophic activily lhroughouf lake water and sedimenlation. These measuremenls wi I I þe relaled to biomass determinations.

D. None. E. Continuation of work. F. None.

Pro.iecl No. 194 A. Nutrient levels in water originating in a farmed, inland sand country catchment.

B. Manawatu Catchment Board, BoX 422, Palmerston North.

Miscellaneous hydrological publication no. 10 (1972) -55-

C. Water samples were taken and tested for phosphate and nitrafe levels, at various poinls in the stream and under various flow conditions. Flow rating and collection of rainfall records was carried out.

D. None. E. Continuafion of water sampl ing and testing. lnstal lation of automatic water level recorder. Conlinuation of f low rating and collection of rainfall records.

Miscellaneous hydrological publication no. 10 (1972) -56-

No. Project Page

2 Biology of weeds in Rolorua and Waikato Lakes (4.U.) 48

4 Colonîsation of coaslal dune lakes by Iypha rm,rcLLeri (M.U. ) 51 5 Waler balance of mountain snow tussock grassland (0.U.) 32

6 Ecological survey of Waikoropupu Springs (C. l. ) 33 7 Survey of water qual ity of rivers of Nelson Province (C. l.) 53

I Moutere experi menta I bas i n (MOW) 27 9 Taita experimental basin (DSIR) 26 10 Makara experimental basin (MOW) 27 11 Purukohukohu experimenïa I bas in (¡¡OWl 28 12 Otutira experimental basin (MOW) 28

13 Manakau Cily experimenlal basin (l\4CW) 28

1,4 Puketurua experimenta I bas ín (MOV'/) 29 16 NuTrient movement in sprinkler i rrigafed soi ls (MOW) 47

18 Hydrological effects of graded banks (MOW) 3

19 Adairexperimental basin (MOW) 29

20 Camp Stream experi menta I bas i n (NZFS ) 26

2l Mathematical estimale of crown leaf area (MOW) 4 22 Rainfal I patterns in remote areas (MOW) 38

26 Measurement of transpiration (MOW) 4

27 The water retention properties of leaves (MOW) 4 28 An evaluation of chemical gauging fechniques (MOW) 20

29 Determination of phylonrorphological characteristics (MOW) 5

30 Measurement of interception in several herbaceous associations 5 (MOW )

31 Chemical measurement of solar radiafion (MOlt/) 5

32 Measurement of soi I moisture with neutron scatterer (MOW) 6

33 Measurement of precipitation from fog (MOW) 6

Miscellaneous hydrological publication no. 10 (1972) -57-

No. P roj ect Page

34 Phytomorphological survey, Puketurua experimenlal basin (MQW) 6 35 Microclimate studies at high altitudes (MOW) 6 37 Extension of interception data (MOW) 7 38 Measuremenf and assessmenl of microcl imate (MOW) 7

39 Measurement and assessment of humus and I itfer (MO\^/) 7 40 Channel morphology and development (MOW) B

41 Gul ly formation and development of drainage densily (MOw) I 42 Methods for deÌermining geomorphological characterislics (lvlOw) I 43 Water balance studies, Rotorua Lakes (MOW) 38 45 Limnological budgets for Lakes Rotorua and Rotoiti (Ag.D) 47

46 Determinatîon of moisture holding capacilîes, eÌc. of soi ls 1 (49.D) 47 Estimation of evapotranspiration etc. from climaÌological dala 34 (As.D)

49 Soi I moisture and cl imatic factors affecting pasture growth 1 (Ag.D)

50 lvory glacier, waler and energy balance (MOW) 38

51 Evatualion of a radioisolope sediment gauge (MOW) 47

52 Estab I i shmenl of representati ve bas i ns (MOW) 30

53 Surface water resources Hawkefs Bay, Poverly Bay, East Coast 39 (MOW)

54 Surface water resources : Hami llon DisÌrict (MOW) 39

55 Surface water resources : Norlhland (MOV{) 39

56 Surface water resources : Taranaki (MOIV) 39

57 Groundwater resources : Heretaunga Plains (MOV'/) 40

58 Water resources: Olago (MOW) 40

59 Surface water resources : Nelson (MOW) 40

60 Surface wafer resources : South Canterbury (MOW) 41

61 use of environmenlal tritium in hydrological sludies (DSIR) 44

Miscellaneous hydrological publication no. 10 (1972) -58-

No. Project Page

62 Measurement of tritium deposition in South Pacif ic area (DSIR) 44

63 Measurement of tritium in rivers (DSIR) 45

67 Analysis of river and lake waters (DSIR) 43

68 The qualify of drinking water supplies (DSIR) 43

69 Development of analytical mefhods for testing water qual ity 43 (DSIR)

70 Clulha sedimenl survey (MOW) 48

7L Chi lÌon Val ley project (C.U. ) 31

72 Contemporary pr-ocesses of de lta ic sed imentalíon (C. U. ) 13

74 I nstabi I ity of ri ver meanders (4.U. ) L2

75 Loose boundary hydraul ics (4.U. ) t2

76 Movement of water in porous media (4.U.) L2

77 Generalion of rainfal I sequences (4.U.) 2T

79 The physics of erosion of cohesive soi ls (4.U. ) 13

81 Mullivariate analysis of non-linear hydrological systems (4.u. ) 22

BZ Digital simulation of caÌchment behaviour (C.U.) 22

85 Catchment model for sensitivity analysis (Linc. ) 22

86 Syntheti c un itgraphs for sma I I rura I catchmenfs ( Li nc. ) 24

87 Yield eslimation for small rural calchmenls (Linc.) 24

88 Mechanics of raindrop erosion (Linc. ) I4

89 Development of erodibility indices (Linc.) 15

90 Mechan i cs of tunnel gu I I y erosion ( Li nc. ) 15

91 Water requ i rements of crops ( Li nc. ) 16

96 Relationship between inf iltration and soil physical properties 1 (Ag.D)

97 Measurement of evapotranspiration of crops and pastures (DSIR) 2

98 Predîction of crop evapotranspiration (DSIR) 2

99 Flood characteristics of representative basins (MOW) 8

Miscellaneous hydrological publication no. 10 (1972) -59-

I'lo. Project Page

100 Root characferistics from experimenlal basins (MOVìI) 9

101 lnf iltration rates f rom studies of individual storms (MOIV) 9

102 The assessment of microcl imate - Puketurua (MOW) 9

103 Earfhflow on mudstone (MOW) 9

I04 Meleorological studies in a glacial basin (MOW) 13

106 Fluvial process studies on braiding rivers in New Zealand (C.U. ) T4

108 Vegetation struclure and moisture interception (V.U.Vr/. ) 18

109 A stochaslíc model for rainfal I (DSIR) 20

110 lnvesligalion of Hurst effect (DSIR) 20

111 Appl icalion of Nashts analylical form of instantaneous unit 20 hydrograph to N.Z. rivers (MOW)

LIz Development of a conceptual model fo simulale mean flows in 2L N.Z. rivers (MOV'/)

113 High speed open channel flow on Aviemore spi I lway (C.U. ) 23

114 lncipîenl motion on a gravel bed (C.U. ) 23

115 Velocity distribution in a tidal river (C.U.) 23

116 Overland f low processes (surface detention/phytomorphological 10 re I ations) (MOW)

Il7 Hydrology of wef and dry hi I I slopes - Adair (MOW) 30

118 IHD experimental basin No. 9, Stage 1 Mangatu (MOVV) 30

119 A hydro I og i ca I sludy of the Wa i tang î -rolo catchment, South 30 West I and, ( ¡40W )

I20 Hydrologîcal investigation of Tuapaka catchment (M.U. ) 32

L21, lnvestigation of water requirements of crops (Ag.D) 34 I22 Description of historical retreat and advance of glaciers 34 (DS IR)

I23 Glaciological studies on Tasman glacier (DSIR) 35

I24 Groundwater resources, Norlh I and (DS I R) 35

L25 Regional study of groundwater of Hami lton Lowlands (DSIR) 35

L26 Soulhern Norlh I s I and groundwater (DS I R) 35

Miscellaneous hydrological publication no. 10 (1972) -60-

No. Project Page

127 Groundwafer survey, Waimea Plains and Nelson (DSIR) 36

128 Groundwater resources of wa i rau p I a i ns (DS I R) 36 I2g Groundwater resources near Christchurch City (DSIR) 36 130 Groundwater in Canlerbury (DSIR) 37 131 Groundwaler of Otago, especial ly near Oamaru (DSIR) 37 L32 Groundwater study of a representative karsl basin in King 37 CountrY, (DSIR)

133 Geothermal resources of New Zealand (DSIR) 37 134 Groundwater survey - Puketurua (MOW) 4L

135 Ra i nfa I I samp I i ng - Pukelurua (MOW) 41 136 Water resources of supply catchments near Vihangare¡ (NCC) 42 137 survey of water qual ily in the waikato river (DSIR) 44 138 Study of hydrogen and oxygen isotopes in Antarctic snow and 45 firn (DSIR) 139 Sedimenl transporl Waipaoa River (MOW) 48 140 Ecology of the Avon and Heathcote Rivers and the Avon-Heathcote 49 Estuary (C.U. ) l4I Limnological study of Lake Grasmere, Canterbury (c.u.) 50 742 Limnological study of some South lsland hydroelectric lakes 50 (c. u. ) 143 Limnological study of some West Coast lakes, South lsland 50 (c. u. ) I44 Production studies of zooplanklon in Lake Rototoa, S. Kaipara 52 Pen i nsul a, Auckl and (W.U. ) 145 Production studies of zooplankton in Lakes Rotorua and Rotoiti 52 (|1J. u. )

L46 Use of methods of deficit esfimation to determine waler 2 requirements of rostered irrigation schemes (Ag.D) I47 Moisture regimes in N.Z. soils (southern South lsland) (DSIR) 3 148 tr4oisture retention of prof lles characleristic of main N.Z. soil 3 groups (DS lR)

Miscellaneous hydrological publication no. 10 (1972) - 61

No. Project Page

149 Gul ly erosion in argi I I ite (MOW) 10

1s0 Wetfing losses of standard rain gauges (t\40W) 10

151 Evaporation losses from rain gauges (MOW) 11

I5?- Storage rain gauge comparison (MOW) 11

153 Study of evaporation in the Gimmerburn basin (MOW) 11

154 Coastal processes in the Kaikoura area (C.U.) 14

155 Recharge of underground water from gravel ly river beds (Linc.) 16

156 Tor I esse resea rch a rea ( L i nc. ) 16 r57 Precipilation gradient on Rock and Pi I lar Range, Central Otago t7 (0. u. )

158 Ra i nfa I I measurement i n snow tussock grass I and (0. U. ) T7

159 Evaluation of lhe effects of subsurface drainage on soi I 18 moislure stalus and related pasture productivity (0.U.)

160 Evaporalion suppressan-ls for raîn gauges (0.U. ) 18

161 Accuracy of rain gauges under exposed condilions (0.U. ) iB

L62 Origin of overland flow in Otutaru calchment (W.U.) 19

163 Causes of i nfi ltration, runoff and erosion in pumice soi I s 19 (w. u. )

164 Development of a malhemalical model to simulate earth flows 2I (MOW)

165 Development of hydrological stabi I ity constants (MOIV) 2T

166 Radiative flux model I ing (C.U.) 23

167 Concepts and techniques in integraled river basin planning 25 (Linc.)

168 Mathematical problems of porous media f low (W.U. ) 25

169 Purukohukohu project, FRI project SP 9 (NZFS) 26

I70 Manorburn experimental basin (MOW) 31

L7l Ngahere represenlaÌive basin (MOW) 31

I72 Paddle Hi I I Creek projecl (Linc. ) 32

Miscellaneous hydrological publication no. 10 (1972) -62-

No. Project Page

L73 Coriaria-ecosystem study on Mt. Egnront (V. U.W. ) 33 t74 Waler resources in N.Z. (MOW) 4l

175 Ohote represenlative basin peat study (MOW) 42 t76 lnvestigation of the groundwaler contours in Vlaipara area (Linc.) 42

177 Hydrological studies using oxygen-18 (DSIR) 45

L78 Residence time of effluent in the Makarewa River (DSIR) 45

179 Radioactive studies of effluent dispersion and dilution in the 46 l lower Wanganui River (DSIR) 180 Effluent dispersion studies on Manukau Harbour (DSIR) 46

181 Chemica I runof f f '-om land undergoing changed use (DS lR) 46 182 Chemical runoff from Taila experimental basin (DSIR) 47 183 Fate of diquat when used as a herbicide in lhe Rotorua lakes 49 (A, U. )

184 Anaerobic-aerobic contact methods of lreating waslewaters under 49 f I uctuati ng I oad i ngs (4. U. )

185 Limnological sfudies on Lakes Monowai, Manapouri and Te Anau 51 (c. u. )

186 Pol lution in Wainuiomafa Stream (V.U.W. ) 51 tB7 Zooplankton studies on Lakes Rotoaira and Taupo (W.U.) 52

188 Phytoplankton ecology of the Rotorua lakes (W.U.) 52

189 Studies on the I imnology of Waikato bog lakes (W.U.) 53

190 Analysis of nitrate in groundwater (W.U.) 53

191 Physiology of aqualic macrophytes (W.U. ) 53

t92 lnvesligalion of hydrosoi ls (C. I . ) 54

193 Microbiological uti lisation of organic and mineral nutrients 54 i n fresh water (C. I . ) L94 Nutrient levels in water originating in a farmed inland sand 54 couñlry catchment (MCB)

Ít

Miscellaneous hydrological publication no. 10 (1972) Miscellaneous hydrological publication no. 10 (1972)