WORLD METEOROLOGICAL ORGANIZATION

INSTRUMENTS AND OBSERVING METHODS

REPORT No. 36

1989

WMO/TD-No. 344

f WORLD METEOROLOGICAL ORGANIZATION

INSTRUMENTS AND OBSERVING METHODS

REPORT NO. 36

COMPATIBILITY OF RADIOSONDE GEOPOTENTIAL MEASUREMENTS

by M. KITCHEN

1989

WMOITD-No. 344 The designations employed and the presentation of material in this document do not imply the expression of any opinion whatsoever on the part of the Secretariat of the World Meteorological Organization concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.

This report has been produced without editorial revision by the WMO Secretariat, it is not an official WMO publication and its distribution in this form does not imply endorsement by the Organization of the ideas expressed. CONTENTS

Page Chapter 1 - Introduction

1.1 Aim of the report ...... ·...... 1.2 Summary of the method ...... I 1.3 Source of error in geopotential measurements ...... 2

Chapter 2 - Systematic errors in geopotential measurements

2. I Notation ...... 3 2.2 WMO intercomparison results ...... 3 2.3 . Radiation corrections for key radiosonde designs ...... ' ...... 3 2.3.1 Vaisala RS80 ...... ; ...... 3 2.3.2 UK Meteorological Office RS3 ...... 6 2.3.3 VIZ ...... 6 2.3.4 Graw M60 ...... 6 2.3.5 Indian Met. Service Mk 3 ...... 6 2.3.6 Phillips ...... •...... 6 2.4. ECMWF monitoring statistics ...... 7 2.5 120(H)000 GMT differences from time-series analysis ...... 8

Chapter 3 - Reproducibility of radiosonde geopotential measurements

3.1 Standards derived from WMO intercomparison ...... 12 3.2 Estimates from time-series analysis ...... 12 . 3.3 Estimates from ECMWF statistics ...... 12

Chapter 4 - Survey of the radiosonde network

4.1 Fully automated systems ...... 15 4.2 Manual and semi-automatic systems ...... 15 4.3 The USA network ...... ·...... 16 4.4 The USSR network ...... 16

Chapter 5 - Conclusions and recommendations

5.1 Radiosonde performance monitoring ...... 18 5.2 Radiosonde operations ...... 18 5.3 Radiosonde systems ...... 18

Acknowledgement ...... 19

References ...... 20

Tables ...... 21-40

Appendix - Radiosonde and groundstation equipment list ...... 41

- 1 -

CHAPTER 1

INTRODUCTION

1.1 The aim of the report

Radiosonde observations remain the principal source of upper-air data used in synoptic-scale meteorological analysis. There are currently approximately 950 upper-air stations world-wide and about 20 major radiosonde type variations (see Appendix). Recent comparisons between radiosonde measurements of geopotential height and short­ term forecast or analysed fields from numerical models confirm that significant biases exist in the measurements from different stations (see e.g. Radford 1987). The existence of these biases has been highlighted in the previous CIMO reports on radiosonde data compatibility (Spackman 1978, Moores 1982, Nash 1984). The biases are significant because their existence degrades the quality of upper-air analyses. However, the method used previously provided reliable estimates of the biases only where the density of stations in the upper-air network was high (e.g. in Western Europe). The results from the WMO radiosonde comparisons have directly quantified the differences between the measurements from some operational radiosonde types. However, only a fraction of the total number of operational radiosonde designs have been compared and the experiments could not simulate the global range of operating conditions.

The aim of the work described here was to use the intercomparison results to validate the use of the 'tlrst guess' (FG) field of the numerical forecasting model run at the European Centre for Medium Range Weather Forecasts (ECMWF) as a data monitoring reference (see Hollingsworth et .al. 1986). It is shown that using the ECMWF FG field, it has proved possible to provide more reliable estimates of the systematic biases on a global basis.

If the bias and reproducibility of the measurements at each station in the global upper-air network can be quantified, the results will be of value in three areas of operational weather forecasting, namely:

(a) To identify those stations in the global network which are producing measurements of poor quality or of a quality very different from that expected, given the type of radiosonde equipment believed to be in use.

(b) To identify any differences in performance of the same type of radiosonde in different locations.

(c) To provide a method whereby geopotential height measurements may be adjusted to be compatible with the WMO reference measurement. )

This study is limited to an assessment of radiosonde geopotential measurement bias and reproducibility at the 100 hPa level because most operational radiosonde ascents achieve this level, so data availability is satisfactory. Also, there is little small-scale spatial and temporal variability in the 100 hP a height fields, enabling more accurate meteorological analysis than is possible at lower levels in the atmosphere. The radiosonde measurements from the surface to 100 hPa are the most important for operational weather forecasting.

1.2 Summary of the method

As a result of the 1984/85 WMO comparison experiments, a geopotential 'reference measurement' was defined as the average of the geopotential measurements from the VIZ and Vaisala RS80 radiosonde during darkness (systems as operated during the comparison experiments). This standard is referred to as the WMO reference (or REF for short) hereafter. The WMO comparison provided two types of information (see Nash 1987):

(a) Biases between the measurements from five different radiosonde designs in current operational use (VIZ, Vaisala RS80, UK Met. Office RS3, Graw M60, Indian Met. Service MK 3) were accurately measured during darkness and during daylight at a few different solar elevation angles. - 2 -

(b) The reproducibility of the measurements from these five radiosonde designs was acc\)rately determined (see Table 1). Experimental conditions duri1"1g the comparisons aimed to simulate optimum operational conditions and the results may not reflect the measurement quality actually achieved at operational stations around the world using these same radiosonde types. The WMO comparison results represent attainable standards for the operation of the radiosonde equipment.

The five operational radiosonde designs in the comparisons are used at about 430 stations world-wide (about· 45% of the total network). ·

In this study, the biases between four of the key radiosonde designs and the WMO Reference measured in the comparisons have been compared with the bias between operational measurements using these radiosonde designs and the ECMWF FG field. The FG field was thus effectively 'calibrated' and has been used as a transfer standard to estimate the bias and reproducibility of all the stations in the global upper-air network.

For this process to be successful, detailed knowledge of the radiosonde and groundstation equipment in use at stations in the upper-air network was essential. An important source of such information was the upper-air catalogue produced by WMO (1986). However, changes in tli.e upper-air network occur continuously and this catalogue is already out of date in important areas. Also, the catalogue provides information on radiosonde types and equipment on a country-by-country basis. Many countries use two or more types of radiosonde and so there is a need for more detailed information on a station-by-station basis. An attempt has been made to compile a more detailed catalogue from other i11formation sources and this is included in this report in the Appendix. Note that analysis of geopotential data is based on summer 1988, whereas information received up to early 1989 has been included in the Appendices.

1.3 Sources of error in geopotential measurement

There are many potential sources of systematic and random errors in radiosonde geopotential measurements and the sources are different for different methods of geopotential determination. For radiosonde systems where the geopotential is computed by integration of radiosonde measurements of pressure, temperature and relative humidity, the error in geopotential,

f = -IOOO.R9.80665 .J [f.r(p *) + fpOTv/8p + fu.8Tv/8U]d(lnp *) 1np:

where ~he superscript* denotes true values, the subscript o refers to values at the surface and 100 to values at the lOO hP a pressure level. Tv is the virtual temperature attributed to the value of p in the processed radiosonde data. Er is the error in the virtual temperature measurement (including errors due to imperfections in radiation corrections), fu the error in the relative humidity measurement and fp the error in the pressure measurement. R is the gas constant for dry air. Errors introduced by data processing procedures and surface pressure measurement are not considered here. For radiosonde systems where the geopotential is calculated using geometric height measurements from a tracking system (e.g. radiotheodolitejtransponder systems) and where the radiosonde does not have a pressure sensor, the corresponding expression is:

Z100 f = T~,IOO J:.2 {fr(z) +E. aa~v Jdz Zo

""""""' ~ Note that errors in the geometric height measurement, fz, can arise from errors in range andjor elevation angle. - 3 -

CHAPTER 2

SYSTEMATIC ERRORS IN GEOPOTENTIAL MEASUREMENTS

2.1 Notation

Throughout this report, the geopotential height of the lOO hPa pressure surface is described using the following notation:

Symbols OB - Height as OBserved by radiosonde. REF - Height as defined by the WMO REFerence measurement. FG - Height from the ECMWF First Guess field at the observation point. SD (X- Y) - Standard Deviation of the difference in height between X and Y. et> - Solar elevation angle at time of observation.

Subscripts N - Observation in darkness (et>< -7 degrees). V82, V84, V86, V8x - Different radiation correction schemes for the Vaisala RS80 radisonde (see Section 2.3.1 ). U - Geopotential measurement that would be obtained in the absence of radiation c

2.2 WMO intercomparion results

Figs 1 and 2 show the measured biases of five different radiosonde designs (all in operational use) as a function of pressure during darkness (Fig. 1) and for three of the five designs during daylight (Fig. 2). The data in Fig. I are plotted relative to the WMO Reference (see Section 1.2), but in Fig. 2, the line of ;1:ero difference represents an arbitrary reference (Nash and Schmid1in 1987). As the WMO REF is defined in terms of measurements in darkness, a correction (OB(cf>)-OBN) needs to be applied to daytime measurements to eliminate the spurious bias between daytime and night-time measurements, due to imperfections/ absence of the radiation corrections. The comparison provided estimates of (OB( et>)- OBN) as a function of solar elevation for three radiosonde designs (see Fig. 3).

2.3 Radiation corrections for key radiosonde designs

2.3.1 Vaisala RS80

Before the WMO comparison results can be related to operational radiosonde measurements around the world, any differences between the radiosonde operation in the WMO comparisons and normal operation must be quantified. In particular, there are several versions of the radiation corrections which have been applied to temperature measurements from the Vaisala RS80 radiosonde. The three main schemes are as follows:

(a) Vaisala '1982' corrections (V82 for short); used with most operational RS80 radiosonde systems installed up to 1986.

(b) The correction scheme used at the WMO comparison experiments in 1984/85. These are referred to hereafter as Vaisala '1984' corrections (V84). It seems probable that a small number of operational radiosonde stations are using these corrections. - 4 -

\ VRS80 IM~k~ I 20 20

50 50

Pressure (hPa) 100 100 Pressure (hPa)

200 200

500 500

1000L---~~----~--~L-----~----L---~ 1000L---~~--~----~----~--~~----~ -120 -80 -40 0 40 80 120 -120 -80 -40 0 40 80 120 (OBN- REF) (m) (OB(

Figure I - The mean difference between the geopotential height of Figure 2 - Similar to Fig. I but for three radiosonde designs standard pressure levels as measured by five operational radiosonde in daylight (solar elevation approximately 40 degrees). designs in darkness during the WMO Radiosonde Comparisons. The mean was computed from the results of at least ten ascents. 0 UK RS3 radiosonde; + VIZ radiosonde; 0 Graw M60 radiosonde; * Indian Met. Service Mk 3; ~ Vaisala RS80 radiosonde.

40 _... --·--· VIZ (Schmidlin,--·----·--· 1987) -·-·-·-· + 20 /.-·---·--· (08(1/>)- OBN) / (m) 0~~~------~~-"~"-··_.. _.. _.. _ .. _ .. _._··-·~·-~ ..~·"-~~------~----~ 0 ...... RS3 ...... g

RS80 A A ------20 ---~------A

-40

-10 0 10 20 30 40 50 60

0 Solar elevation ( )

Figure 3 -The day-night difference in 100 hP a geopotential measurements (after elimination of the contributions from solar tides). L::.,-- -L::., Vaisala RS80 (from Nash and Schmidlin, 1987); 0 ········ 0 RS3 (from Nash and Schmidlin, 1987); +--+ VIZ (from Nash and Schmidlin, 1987); •-•- VIZ (derived from data in Schmidlin, 1987). - 5 -

(c) Vaisala '1986' corrections (V86); used with operational RS80 systems installed after 1986. This scheme was devised by Vaisala after evaluation of the WMO comparison results.

Some radiosonde stations are thought to use correction schemes other than V82, V84 or V86. A number of stations where the corrections are applied manually to the temperature data may have adopted local procedures, e.g. ignoring the recommended radiation corrections below a certain level in the atmosphere where corrections are relatively small.

The effects of the V82, V84 and V86 correction schemes on lOO hPa geopotential height measurements were computed by integration of the temperature correction profiles from the surface to the 100 hPa level. The difference between uncorrected and corrected heights (OBu-OBvsx()) are plotted as a function of solar elevation in Fig. 4. The difference between the RS80 geopotential measurements at night-time using the V84 scheme and the WMO REF ( 0Bvs4,N-REF) is known (see Fig. 1). Also the magnitude of the spurious day-night difference due to imperfections in the V84 daytime corrections (0Bvs4(4>)-0Bvs4,N) is shown in Fig. 3. Using these three pieces of information, it is possible to determine the bias between RS80 measurements and the WMO REF as a function of solar elevation angles for each of the Vaisala radiation correction schemes as follows:

50

40 Heights subtracted Correction scheme which would from raw data adjust measurements to WMO REF 30 ·--·--·--·-----.------V84 correction V86 correction --~

20 (OBu-OBvex (rp)) (m}

0 10 20 30 40 50 60 70 80 90

0 Solar elevation ( ) -10

Heights added to raw data

Figure 4 - The effect of the radiation corrections applied to Vaisala RS80 temperature measurements on the computed 100 hP a geopotential height. Also the height correction which would adjust the Vaisala RS80 geopotential to the WMO Refer~nce. (OBu-OBvs2(c/>)) for V82 correction scheme; --- (OBu-OBvs4(c/>)) for V84 correction scheme; -·-· (OBu-OBve6(c/>)) for V86 correction scheme; ----- Radiation corrections scheme for the RS80 radiosonde which would adjust the measurements to the WMO REF. - 6 -

E.g. for the V86 correction scheme

0Bvs6(cj>)-REF = {(0Bu-0Bvs4(r/>)) (0Bu-OBY86(r/>))} + (0Bvs4(r/>)-0Bvs4,N) + (0Bvs4,N-REF)

From Fig. 4 From Fig. 3 From Fig. 1

2.3.2 UK Meteorological Office RS3 radiosonde

The WMO comparison results demonstrated that the radiation corrections applied to the RS3 temperature measurements were generally effective (to within a few metres) in removing spurious differences between daytime and night-time 100 hPa geopotential height measurements (see Fig. 3). There is some question regarding the corrections applied in twilight conditions as the point plotted at rf>=3° does not appear to be consistent with the others. However, the evidence is insufficient to define an imperfection in the RS3 correction scheme. As very small solar elevations are

not encountered in operational ascents in the V nited Kingdom at 0000 and 1200 GMT ( 0 BRs3( cf> )-REF) has been taken to be approximately independent of solar elevation for the RS3 in this study.

2.3.3 VIZ

Almost all operational radiosonde stations flying VIZ radiosondes do not apply radiation corrections to the measurements (an exception is Station No. 06447, see Appendix). The WMO Radiosonde comparisons demonstrated that the VIZ temperature sensor suffers from significant radiation errors both in daylight and darkness. The correction to the 100 hPa geopotential which is necessary to remove spurious day-night differences is shown in Fig. 3. Two alternative sets of corrections are shown. One is derived directly from geopotential height data from the WMO comparisons and given in Nash and Schmidlin (1987) and the other derived from independent estimates of the errors in the VIZ radiosonde temperature measurements reported in Schmidlin (1987). The effect of both schemes was examined in this analysis (see Section 2.4). The bias between the VIZ radiosonde geopotential measurements and the WMO reference is given by:

0Bviz(1J)-REF = (OBVIZ(r/>)-OBviz,N) + (OBviz,N-REF)

From Fig. 3 From Fig. 1

2.3.4 Graw M60

The number of GM60 radiosondes flown in the WMO radiosonde comparison experiments were sufficient only to define the bias between the GM60 and the WMO reference during darkness. However, from monitoring of the operational measurements using the GM60 at stations in the Federal Republic of Germany, it is clear that the radiation corrections applied to the measurements are effectiYe in eliminating spurious day-night differences. That is (0BGM6o(1J)-OBGM6o,N) is small and can be neglected.

2.3.5 Indian Met. Service Mk3

The WMO comparison results provide estimates of the biases between the Indian Met. Service Mk 3 radiosonde and the WMO reference (see, e.g. Fig. 1). However, there is evidence (see Section 4.2) that the performance of the Mk 3 as operated in the WMO comparison experiments is very different from that achieved in routine operation. For this reason, operational measurements from this radiosonde design are not considered useful in validating the FG field.

2.3.6 Phillips

At the time of the WMO comparison experiments, this radiosonde design was in operational use in Australia. However this type has now been withdrawn from operation and does not figure in the present analysis. - 7 -

2.4 ECMWF monitoring statistics

Statistics of the difference between radiosonde measurements of I 00 hP a geopotential height and the ECMWF 'first guess' field (OB-FG) are listed in Table 2. The monthly statistics for May, June and July 1988 generated by ECMWF have been averaged together to produce a mean bias (with its standard deviation) for 0000 and 1200 GMT. The means were not computed for stations where statistics were missing for individual months within the period.

For those stations flying key radiosonde designs (RS80, RS3, VIZ, GM60, see Section 2.3) values of (OB-FG) may be combined with (OB-REP) to derive estimates of (FG-REP) as follows:

(FG-REF) = (OB-REP) - (OB-FG)

For the key radiosonde designs, simple algorithms were developed to describe the functions (OB-REP). For each station in the upper-air network flying a key radiosonde type, a value of (OB-REF) appropriate for ascents at 0000 and 1200 GMT during the period May-July was calculated.

Figs 5a and bare plots of(FG-REF) against latitude using data from those stations fulfilling three conditions:

(a) Vaisala RS80, United Kingdom RS3 or Graw M60 radiosondes are used.

, (b) Appropriate radiation corrections are applied to the temperature measurements and geopotential heights are computed automatically.

(c) The details of the radiation corrections applied to the temperature data are known with some certainty.

At both 0000 and 1200 GMT, the average value of (FG-REP) is about 25 m, with strong evidence of lower values at higher latitudes in the northern hemisphere. The points are scattered but almost all lie within 20 m of the curve (fitted by eye) through the points. The standard deviation of the points around the fitted line is about 15 m.

There is a small number of stations for which (FG-REP) is > 30 m from the curve (identified by the station number in Fig. 5). It could be that either the information regarding the sounding equipment in use at these stations is incorrect (see Appendix), or else the observing practice differs from the norm for the particular radiosonde system. The possibility of localized systematic errors in the ECMWF FG field must also be considered. It is encouraging that the number of anomalous stations is small (< 10% of the total number of stations satisfying the three criteria above).

From these results, it is considered that the ECMWF FG field is clearly of value in identifying those radiosonde stations where the 100 hPa geopotential measurements appear to have a bias which is anomalously large or is incompatible with expectations given the type of radiosonde in use. Clearly, the difference (FG-REF) is not zero and is not constant over the globe (see also below and Nash, 1987). The uncertainty in the difference (FG-REF) is about ±15m.

Estimates of (FG-REP) were also made using data from VIZ radiosondes using the Schmidlin (1987) correction scheme. For this radiosonde type, the values of (FG-REP) are more scattered, particularly for stations outside mainland USA (see Table 2). The much larger number of stations with apparently anomalous biases is almost certainly the result of anomalies in radiosonde measurements introduced by the use of manual methods in groundstation processing. Within the USA national network, groundstation processing is now automatic and there is less scope for this type of error.

Within the USA network, variations in (FG-REP) are apparent which are a function of longitude (i.e. a function of solar elevation as well), see Fig. 6a. Similar variations were also obtained using the alternative Nash and Schmidlin correction scheme (Fig. 6b) suggesting that the longitudinal variations are not easily explained by the uncertainty in the derivation of the correction schemes. The interpretation of (OB-FG) statistics inN orth America is not straightforward and these results are discussed further in Sections 2.5 and 4.3 - 8 -

70r------~------~------~ (a) 0000 GMT 60 • Vaisala RS80 o UK Met Office RS3 "'GRAW M60 50 • 40 • • .•• . •., • . 30 (FG-REF) •• • : ~ 0 ••• ...... ,· (m) 20 ------·• I 0 o ~ • • • 0 cJ>b..' • • ... 0 •"- 10 •o • 0 •45004 • • • • or------,------r--•~9~3~9~86~~------r------~------'-T------~--~------~ -90 -70 -50 -30 -10 10 30 50 • • • 90 • 01152

70 (b) 1200 GMT

•48698 60 •60020 50 (FG-REF) (m) 40 • • • • > ~ 0 • 30 • •• • • ---e --..-..00--.,-e CO 20 .. • ------·. ~ ...... - • . ·~ ;:;-- • • 10 • • o0 o ' • 0 • • .. 0 •••• 0 -90 -70 -50 -30 -10 10 622l1 30 50 70 90 0 -101L------...:L::a:::li.:.:lu::d:.::e....l.(_. )!______.. 01152 __j

Figure 5 ~(a} Computed values of (FG-REF).oo for radiosonde stations using the UK RS3, Vaisala RS80 and Graw M60. The values are plotted as a function of latitude. Stations which fall more than 20 m from the dotted line drawn through the points are identified by their WMO number, and (b) similar to Fig . .Sa but for (FG-REF)n.

2.5 1200'--0000 GMT differences. from time-series analysis

For those radiosonde stations where ascents are made at both 1200 and 0000 GMT, the systematic difference in height () between the 1200 and 0000 GMT observations (D) can be estimated from anN day continuous time series (Hawson and Caton 1961).

N N I D d(i) ~ 12(i) - 0.5 ( oo(i) +

E = J}ad - 9 -

In general, D will contain contributions from imperfections in the radiosonde radiation corrections and atmospheric tides.

The results of time-series analysis of operational data for the period May-July 1988 are contained in Table 2. It is recognized that a few radiosonde stations which should have entries in the various columns of Table 2 are missing. This is because of the difficulty in maintaining accurate up-to-date station lists. Also, the time-series method can of course only be applied to those stations which routinely make ascents at both 0000 and 1200 GMT (in the tropics, changes in 100 hPa height over a 48-hour period may be approximately linear and justify extension of the time series method to stations making one ascent per day in future).

Estimates of D from the time-series analysis may be compared with a similar quantity (OB-FG)12- (OB-FG)oo derived from ECMWF monitoring over the same 3-month period. Fig. 7a shows the results of this comparison for stations in Europe where the density of stations is high and also from a selection of remote stations around the world (Fig. 7b). Almost all the points lie within 15 m of a line of slope 1.0 through the origin and the remote stations points are not significantly more scattered than the others. This evidence suggests that the ECMWF monitoring statistics averaged over a 3-month period may be useful in estimating D with an uncertainty of about 15 m over large areas of the world. Over North America, the radiosonde ascents are at times close to the peak displacement in 100 hPa height due to the solar diurnal tide (Nash, 1984). This tide contributes to the average height difference between 0000 and 1200 GMT observations. The tidal variations in the 100 hPa height are simulated to some extent by the ECMWF FG field. In Fig. 7c, it can be seen that (OB-FG)tz- (OB-FG)oo is approximately 30 m larger than D for stations in the USA network except in , where no systematic difference is evident. The implied magnitude of the tidal variation at 100 hPa in mid latitudes (30 m) is similar to the magnitude estimated from the radiosonde observations themselves reported in Nash (1984). This is evidence that the longitudinal variations in (OB-FG) over North America (see Fig. 6) cannot be explained simply by poor representation of tidal effects in the FG fields.

-1 (a) -1 (b) I I 36 491_~ 36 /""~~8--....12 40 i~ I 46 29 20 I \ " '[ 26 I ~81 30 40-31 14 141 ~26122 3 37, 34<:; \: \ I 39 25 ) 37 } Dark 25 Daylight Dark Daylight

/~~ I ~ ;29 121 31 23 f~1 I" 6 30 ' 14 6 -8 27 21 ( 15 5 7 25 \ 31 24 9 20 19 \ 13 8 -6 -4 13 0 -8 _.) 20 30 30 17 8 3? ( 21 14 -3 ( 17 \36 21 24 19 13 15 1 11 's 14 18 8 4 -4-11 RI4 3 o 13 \ 24 19 1 I 4 35 I 5 210 24J ) 25 I 8 -10 -3 'X 30 2 8 22 10 6 26 12 11 5 -6 -8 -10 -3 25 \ 29 19 \ -10( -3 17 \ -19 1 31 \ 33 26 9 3 22 11 16 15 9 6 -4 -\(' \ 5 14\ -13 \ 17 14) 0 a--,\ I 16 _ n 2 -22 n 16 9 -1 '2J 1 1 \ 18 (':, ~J ~

Figure 6 -(a) Map of values of (FG-REF)1 2 for stations in the USA national network. The radiosonde corrections were based upon the results of Schrnidlin, 1987 (see Fig. 3), and (b) similar to Fig. 6a but the corrections were based upon data in Nash and Schrnidlin, 1987 (see Fig. 3). - 10 -

6 0 / / / / / (a) / / 5 0 AT / / / / / / / / / 4 0 / / / / / . /"!f: / / '+/ ,;+ 30 / / + / ;!+ / +,n- ,'+ / 20 / + / / ,A-+ ;¥ / + 10 / +:flf- ,' / / ¥.-' / D(m) o / ~ ... "'# + / / / .gY' + / -10 / + ,d' ;l-/ ' / /'1- / + / / -20 / / / / / ' / /. ' / -30 / / / / / / +, ' ' / -40 / / / / / / / /. / / -50 / + / ' / / / + / / / / -60 / / / / / ' / / ' / -70 / / / ' / -80 ' ' -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 (OB- FG),,- (OB- FG)oo (m)

90 / (b) 80 / / / 70 / / 60 / / / / 50 / / / /~ 40 / / / / / 30 / / / / 20 / D / X x/ (m) / 10 X / / / 0 /X / -10 / / -20 / / -30 ,( X / -40 ,( X / -50 / / xx / / -60 / / / / -70 / / -80~--~/--~~--~--~--~--~--~--~--~--~--~--~--~--~--~ -so -70 -6o -ro -40 -3o -20 -10 0 10 20 30 40 50 60 70 80 (OB- FG),- (OB- FG)oo (m) - 11 -

90

(c) 80

70 o Alaska 60 x 'Mainland' USA

50

40

D 30 (m) 20 X 10

0 X -10 X X X X /''x x -20 ,(Se~ XX -30 X

-40

-50

-60

-70 )( X

-70 -60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 BO 90

(OB- FG),- (OB- FG)oo (m)

Figure 7- (a) Comparison between D (computed from observation time series) with (OB-FG),2-(0B-FG)oo from ECMWF monitoring statistics. Upper-air station numbers 00000 to 14000, (b) similar to Fig. 7a but for a selection of isolated upper-air stations, and (c) similar to Fig. 7a but for stations in the USA national network. 0 stations in Alaska; X stations in other US states. - 12 -

CHAPTER 3

REPRODUCIBILITY OF RADIOSONDE GEOPOTENTIAL MEASUREMENTS

3.1 Standards derived from WMO intercomparison

The reproducibility of the 100 hP a geopotential height measurements for the five operational radiosonde typ.es tested in the comparison are shown in Table 1 (data from Nash and Schmidlin 1987). These figures represent the reproducibility that can be achieved under optimum operational conditions using similar groundstation processing to that used in the comparison experiments.

The standards in Table 1 will be compared with estimates of reproducibility at 100 hP a achieved in routine operation (derived using the methods set out in Sections 3.2 and 3.3).

3.2 Estimates from time-series analysis

In Table 2, values of the quantity E derived from analysis of measurement time series are listed. E is given by:

where L is the r.m.s. difference between the geopotential }].eight at a point in time and an estimate of the height based on a linear interpolation from height values 12 hours before and after this time. L can be estimated by comparing values of E with reliable independent estimates of e from radiosonde trials. Departures from linearity in the rate of change of the 100 hPa geopotential height mean that E is generally an overestimate of the true radiosonde reproducibility (e), particularly for high-quality radiosondes. For example, from Table 2, a typical best value of E of about 11 m is found at stations flying the UK RS3 and Vaisala RS80 (with fully automated groundstation processing). e = 8 m from Table 1. This suggests that L is also approx. 8 m for summertime at midlatitudes. Hence for £>20 m say, E>> L2 and E=e.

3.3 Estimates from ECMWF statistics

E can also be compared with SD (OB-FG). There are three contributions to the SD (OB-FG), namely:

(a) Random forecast errors in the FG field (F say).

(b) Representativeness errors of the radiosonde observations (R).

(c) Reproducibility of the radiosonde observations (e).

An average value of SD (OB-FG) was computed for each radiosonde station over a 3-month period (Table 2). Values of SD (OB-FG) for UK stations in summertime are about 12 m on average. Assuming that e = 8 m for the RS3 radiosonde (as above) suggests that .}(R2 +F) is about 9 m. This may be compared with an estimate of R = 6 m at the 100 hPa level in summertime for radiosonde observations used in a numerical model analysis with grid spacing= 150 km (Kitchen 1989). The implication is that SD (OB-FG) will be significantly larger than e for SD (OB-FG) < 25 m say. This simple analysis also suggests that SD (OB-FG) may be slightly larger than E, at least in the vicinity of the UK in summertime.

The mean SD (OB-FG) for 0000 and 1200 GMT was compared with E computed from the observation time series over the same 3-month period. Comparison plots are shown both for a set of stations where the upper-air - 13 -

network is dense and a set of remote stations (Fig. 8). At small values of E and SD (OB-FG), i.e. for radiosonde stations where the measurements are of high reproducibility, SD (OB-FG) is clearly slightly higher than E as expected. For larger values of E and SD (OB-FG), the points in Fig. 8 are more scattered, but almost all the points lie within 20% of a line of slope 1.0 through the origin. Outlying points probably arise because quality control procedures result in differences in the data included in the two methods of analysis.

Thus SD (OB-FG) contains useful information concerning the lOO hPa geopotential measurement reproducibility. Certainly, it is possible to distinguish between radiosonde stations making measurements of the highest quality (e < 15 m say) from those where the observations are of medium to low quality.

In Table 2, the ratio between SD ( OB-FG) and the reproducibility standard from Table 1 is listed where possible (column headed SD, MEAN/STANDARD). This identifies those stations where operationalperformance is close to the optimum (ratio less than 2 say). The distribution of (SD, MEAN/STANDARD) values for each radiosonde type are shown in Table 3. These statistics are discussed in Section 4 below.

36 (a) /J< X 34 I / 32 +17% Line / / 30 / X

/ X 28 /X X ·X / X 26 / / 24- X / E / (m) 22 / X / X X

20 / X

18 X

16

14

12

10

6

6

4

2

0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 ISD(OB- FG)oo + SD(OB- FG) h• X 0.5 (m) - 14 -

36 (b) 34

32

X 30

28

26 X

24 ' X

22 X X X OWSL 20 E OWSM X X (m) X 60020 18 70414 X 78016 78384 16 X X 78397 78583 14 91165 X 91066 91217 12 X 91245 91285 10 91765 89611 89542 8 89532 89001 6

4

0 4 6 8 10 12 14 16 18

ISO( OB~ FG)oo + SD(OB ~ FG) }12 X 0.5 (m)

Figure 8 -(a) Comparison between E (computed from observation time series) and SD (OB~ FG) from ECMWF monitoring statistics. l"pper-air station numbers 00000 to 14000, and (b) similar to Fig. 7a but for a selection of'isolated upper-air stations. - 15 -

CHAPTER4

SURVEY OF THE RADIOSONDE NETWORK

From the results presented in Tables 2 and 3, some general comments can be made regarding the geopotential measurements from the upper-air network. Comments on the performance of national networks are in the main restricted to the two largest networks: those of the USA and USSR.

4.1 Fully automated systems

The measurements with the best reproducibility (indicated by low values of SD (OB-FG) and E in Table 2) are provided by the (approximately) 200 stations which use modern radiosondes with fully automated groundstation processing (i.e. Vaisala RS80 with Microcora or Digicora and UK RS3). The reproducibility of measurement achieved at many of these stations is close to the optimum for the particular type of radiosonde (see Table 3). The current growth in the numbers of stations using such equipment should lead to a gradual improvement in the quality of geopotential measurements. Only a small number of stations using fully automated ground equipment provide obviously anomalous measurements.

The automation of groundstation processing can also lead to difficulties in interpretation of the (OB-FG) differences, as many radiosonde operators are now unaware of corrections made to the basic data by their groundstations software. For example, there are currently at least two radiation schemes recommeJ.1,ded for use with the Vaisala RS80 radiosonde (see Section 2). Although the Vaisala company attempt to maintain records of which station uses which correction scheme, the information is not widely available. Software updates can cause unexpected changes in the measurements from a station which is outside the control of either the operator or the station administration.

4.2 Manual and semi-automatic systems

The method of calculating geopotential from the plotted temperature profile either manually (e.g. using a Vaisala diagram) or by entering selected data into a separate calculator, introduces scope for error in the processing. The statistics in Table 2 suggest that such processing errors are widespread, affecting a large number of individual stations to a greater or lesser extent. Table I shows that the VIZ radiosonde is capable of the same reproducibility in 100 hPa height measurement as the Vaisaia RS80 and RS3. Where the VIZ radiosonde is used in conjunction with automated ground equipment in the USA national network, most stations have (SD MEAN I STANDARD) between 2 and 3 (Table 3). However a large fraction of the stations using the VIZ radiosonde with manual processing have (SD MEAN I STANDARD) > 4. Overall, VIZ radiosonde performance in operation is significantly worse on average than for the RS80 and RS3.

Some stations which use modern radiosondes but retain manual groundstation processing do not always realize the full potential of the radiosonde (i.e. they have in comprehensible biases and/ or poor reproducibility). For example, almost all the stations flying RS80 radiosondes, and which have SD MEAN/STANDARD> 3, are believed to use manual processing methods.

The reproducibility of geopotential measurements from the Indian Met. Service Mk 3 achieved in the WMO Comparisons (Table I) is also very different from that achieved in routine operation (see Tables 2 and 3).

It is possible to identify many other problems within national networks from the statistics in Table 2. This emphasizes the importance of careful control of observing practices and effective data monitoring within the national networks. Where sufficient resources cannot be devoted to these aspects of network administration, then fully automated systems are highly desirable. A radical improvement in the quality of global upper-air data could be brought about if: - 16 -

(a) Each radiosonde station provided measurements which realized the full potential of the radiosonde.

(b) The reproducibility of the measurements from each radiosonde station was brought up to the standard of the best station within each national network.

4.3 The USA network

As mentioned above, the USA national network is characterized by a high standard of reproducibility from the VIZ radiosonde measurements. The longitudinal variations in (OB-REF) are, however, difficult to understand and merit further analysis. In Fig. 9, the (OB-FG) values for June 1988 are plotted as a function of solar elevation. The distribution of the points suggests a smooth variation with solar elevation and a scatter of about± 15 m with a few outliers. Some of the stations with possible anomalous biases may be identified in Fig. 6. It has already been shown that the ECMWF FG field includes simulation of tidal effects so it might be expected that the curves fitted to the data in Fig. 9 would be similar (apart from a constant offset) to those for the VIZ radiosonde radiation errors plotted in Fig. 3. It is apparent from both Fig. 7c and Fig. 9 that the magnitude of the corrections is inadequate to account for the range in (OB-FG) and D values encountered in practice. For example for several stations in Alaska D > 60 m, whereas the largest value of D which could be anticipated on the basis of Fig. 3 is about 40 m. This discrepancy suggests that the presently devised correction schemes are not adequate to describe current VIZ radiosonde operational performance everywhere in the USA and there may be a specific problem with operations in Alaska during this period. Further work is required to clarify the situation.

4.4 The USSR network

The extensive USSR network does not present a uniform quality of observation. This is most easily seen in the large range of SD (OB-FG) and E in Table 2. Some stations provide observations of good reproducibility (e.g. 23955, 33815, 34880) using ostensibly similar equipment to those with values of Ethree or four times larger, reinforcing the points made in Section 4.2 above. Similarly the (OB-FG) biases show large, apparently random variations between stations. Fig. 9b shows (OB-FG) for June 1988 plotted as a function of solar elevation. In contrast to the similar plot for the USA network (Fig. 9a), no definable trend is evident. (OB-FG)12 is however of similar magnitude to (OB-FG)oo for most stations (see Table 2) which suggests the origin of the biases lies within the groundstations' equipment and/ or processing. Note that in the USSR network, it is believed that the geopotential measurements are derived using secondary radar measurements of geopotential height and the radiosondes are without pressure sensors (see Section 1.3).

{62)

"' .. .. "' "'"' "' .. "' M "' "' " " " Solar "' elevation {") 50 60 - 17 -

40 • 72201-72486, Southern USA, 12 Z • .. 72201-72486, OD Z A 30 (b) • A 20 • • 10 . .. (OB- FG) a .. • Solar • ... • •.. •• elevation (0 ) (m) or------,------,.~---··.~·-~·-.. -L7,.r--.-----·---.------~.------r------..--~ -20 -10 0 • •• • • 10 •• 20 30 40 50 60 ..... -10 .. • • ... -20 • • ..·· • • • -30 •

-40L------~

• 20046-39700, ooz o 20046-39700, 12Z (c) (145) • (174) 120 • 0 0 • 110 0 0

100 0 0 • 90 • 0 • • 0 •• 0 80 • 0 • 0 70 • 0 0 0 • 0 • (OB-FG) 0 • 0 0 (m) 60 • • 0 0 • ao 'b 0 • • 0 • ••••• 0 0 50 • - 0 0, \9 • Oo 0 • 0 • 0 40 • 0 0 •a • • 0 • 0 • • • 0 • 0 • 0• • 0 0 • 30 0 • 0 0 • •• 0 0 0 Oo • 0 '0 0 0 • • 0 20 • • • oo •0 0 • 0 0 • 0 • • 0 • • ••• • • • cP 0 • 0 ~0 0 'b • • • 0 0 • 0 • 10 0 o De•• o o•a.•- • & • 0 •o • \) • Solar O~------~•_,r·~~~·~---~n-r~---o--~--~·~~o~--~~--~r•~o~o~rr~~~·-el_e_va_t_io~n~(o~)4 -20 -100 • • 0° • 10 • 20 eO 30 ° 40• v50 v 60 0 • • 0 • • -10 0 0 0 0 0 0 • 0 0 • • • 0 • 0 • •0 • 0 • 0 -20 • • • • Oo • 0 • • 0 • 0 0 •• • 0 0 -30 I • • .. • 0 -40 • 0

• 0 -SOL------~

Figure 9- (a) (OB-FG), June 1988 for stations in the USA national network plotted as a function of solar elevation angle, • station numbers 72493-72797 (northern states), 1200 GMT; 0 station numbers 70026-70454 (Alaska), 1200 GMT; 4. station numbers 72493-72797, 0000 GMT; £::.. station numbers 70026-70454, 0000 GMT, (b) similar to Fig. 9a but for: • - station numbers 72201-72486 (southern states), 1200 GMT; 4. - station numbers 72201-72486, 0000 GMT, (c) similar to Fig. 9a but for the USSR network, • station numbers 20046-39700, 0000 GMT; t 0 - station numbers 20046-39700, 1200 GMT. - 18 -

CHAPTERS

CONCLUSIONS AND RECOMMENDATIONS

5.1 Radiosonde performance monitoring ' ... 5.1.1 The WMO Radiosonde Comparisons have provided information which can be used to model the performance of radiosondes flown operationally at just under half of the 950 stations in the global upper-air network. The results have been used to assess the ability of the ECMWF FG field as a tool for estimating the (OB-REF) differences (averaged over a 3-month period) at individual stations. It has been concluded that the ECMWF FG field is useful in estimating (OB-REF) differences at 100 hPa with an uncertainty of about 15 m over large areas of the world. Similarly, the quantity SD (OB-FG) can be correlated with the measurement reproducibility assessed using the time-series method.

5.1.2 Those responsible for the administration of national radiosonde networks should be alerted when monitoring results suggest that the values of (OB-FG) or (SD, MEAN I STANDARD), computed over a 3-month period, are not compatible with the expectations based upon the type of radiosonde equipment in use. The present work suggests that stations with (OB-FG) > 10 m or< -60 m or (SD, MEAN I STANDARD)> 3 for the 100 hP a level warrant investigation to eliminate possible equipment or observing practice problems.

5.1.3 Correct interpretation of the quantities such as (OB-FG), D, etc. is impossible without detailed knowledge of the radiosondes, groundstations and relevant observing practices (e.g. radiation corrections) in use at each station. The results of direct instrument comparison experiments are devalued if it is not known which operational stations operate equipment similar to that tested.

Changes in the network occur frequently and reliable up-to-date information is at a premium. Data which was valid a few years ago is inadequate for the specification of current conditions. If radiosonde data compatibility is to be first achieved and then maintained, a reliable station equipment catalogue must be compiled and updated at frequent intervals (at least annually).

5.2 Radiosonde operations

5.2.1 The advantages of automated radiosonde systems, in terms of stable, predictable biases and high reproducibility are clear from the data in Tables 2 and 3. These advantages are particularly important for remote upper-air stations or in networks where only limited resources can be devoted to routine monitoring and quality assessment.

5.2.2 Many stations are not realizing the fuii potential (in terms of measurement quality) of the radiosondes they are flying. There are also several nationaJ networks in which each station has similar radiosonde equipment but reproducibility varies markedly and significant biases exist across the network.

Radiosonde operators, as weii as network administrators, have a role to play in the monitoring of radiosonde data quality. For example, if a time-series plot of the 100 hPa geopotential height was maintained at each station, and periodically compared with similar plots produced at neighbouring stations, then anomalously poor measurement reproducibility could be identified and rectified. If also the long-term average 100 hPa height was computed (e.g. a 6- month period) and compared with other stations within national networks, then any serious systematic errors should be identified and investigated.

5.3 Radiosonde systems

5.3.1 As noted in Section 4, the introduction of automated radiosonde systems brings an opportunity to improve the uniformity of observing practice and hence the compatibility of radiosonde observations. However, if this goal is to - 19 -

be realized, then the systems' manufacturers need to accept some new responsibilities, namely:

(a) The manufacturers should consider issuing a regular report with a wide circulation giving information about relevant equipment installation and software updates for each station using their make of radiosonde/ ground equipment. This information should also be provided to the individual station operators. Advanced notice of the introduction of new correction schemes is desirable.

(b) A commitment to working towards greater uniformity in the correction schemes.

ACKNOWLEDGEMENT

Dr J. Nash provided guidance in the analysis of the data and in the interpretation of the ECMWF monitoring statistics. - 20 -

REFERENCES

Hawson, C. L. and Caton, P.: A synoptic method for the international comparison of geopotential observations. Meteorological Magazine. London, 90, pp. 336-344, 1961.

Hollingsworth, A., Shaw, D. B., Lonnberg, P., Illari, L., Arpe, K. and Simmons, A. J.: Monitoring of observation and analysis quality by a data assimilation system. Mon. Wea. Rev. 114, pp. 861-879, 1986.

Kitchen, M.: Representativeness errors for radiosonde observations. Quart. J. Roy. Met. Soc., 115, pp. 675-700, 1989.

Moores, W. H.: Compatibility of radiosonde measurements in the upper troposphere for. the period I I 11 I 80 to 31 fl 0 I 81. OS M 19, Meteorological Office, Bracknell, 1982.

N ash, J.: Compatibility of radiosonde measurements in the upper troposphere and lower stratosphere for the period I I 11 I 8 I-31 I I 0 I 82. OS M 24, Meteorological Office, Bracknell, 1984.

Nash, J.: The relevance of the WMO international radiosonde comparison results to the global operational radiosonde network. ECMWFIWMO workshop on radiosonde data quality and monitoring. ECMWF 14-16 December 1987, pp. 207-226, 1987.

Nash, J. and Schmidlin, F. J.: WMO International Radiosonde comparison (UK 1984, USA 1985). Final Report. WMO Instruments and Observing Methods Report No. 30. WMO Geneva, 1987.

Radford, A. M.: ECMWF monitoring results. ECMWF/WMO workshop on radiosonde data quality and monitoring. ECMWF 14-16 December 1987, pp. 95-114, 1987.

Schmidlin, F. J.: Test results using suggested temperature corrections for the US radiosonde and application to the intercomparison measurements. ECMWFIWMO workshop on radiosonde data quality and monitoring. ECMWF 14-16 December 1987, pp. 33-42, 1987.

Spackman, E. A.: The compatibility of upper air data, Part 11- The compatibility and performance of radiosonde measurements of geopotential height in the lower stratosphere for 1975-1976. WMO Tech Note 163, 1978.

WMO: WMO Catalogue of radiosondes and upper-air wind systems in use by members- 1986. WMO Instruments and Observing Methods Report No 27. WMO Geneva, 1986. - 21 -

Table 1

Reproducibility of 100 hPa geopotential height measurements for five operational radiosonde designs, as deduced from the results of the WMO Radiosonde Comparison.

Unit is geopotential metres

PRESSURE VAISALA+ UK GRAW* INDIAN MET. viz+ (hPa) RS80 RS3 M60 Mk3

500 4 4 4 6 11

250 6 6 6 12 20

lOO 9 8 9 21 27

50 11 10 11 25 32

20 15 15 15 40 45

10 25 25 25 55 60

+Values are averages from Phase I and Phase II of the WMO comparison.

*Values represent results using manual data processing (as at Station 08495) rather than automatic processing as at FRG stations.

- 23 -

Table 2

Summary of ECMWF Monitoring statistics and analysis of observation time-series for the 3-month period May-July 1988.

SONDE TYPE -the code for radiosonde types is given in the Appendix; (OB-FG) is the mean difference between the radiosonde 100 hPa height measurements and the height from the ECMWF FG field at the station location; SD refers to the standard deviation of (OB-FG); (FG-REF) is the computed mean difference between the FG I 00 hP a height and the height measured by the radiosonde once the measurements had been corrected to the WMO Reference radiosonde; (SD, MEAN f STANDARD) is the ratio between the average of SD for 0000 and 1200 GMT and the standard defined in Table I; E is an estimate of the radiosonde measurement reproducibility derived from an analysis of the time series of the 100 hP a height measurements from each station; D is an estimate of the mean difference between 1200 and 0000 GMT measurements from the time series analysis. Unit of items (OB-FG), SD, (FG-REF), E and D is geopotential metres.

STATION SONDE OB-FG, OOZ SD, OOZ FG-REF OB-FG, 12Z SD, 12Z FG-REF SD, MEAN/ E D NUMBER TYPE MEAN MEAN ooz MEAN MEAN 12Z STANDARD

-. ·------~- 01001 VRS80 -2.7 16.1 5 -9.3 12.3 16 1.6 11.9 -7.1 01028 VRS80 -2.5 13.7 4 -8.1 13.9 14 1.5 11.8 -1.0 01152 VRS80 25.2 18.5 -21 26.2 18.9 -19 2.1 21.7 4.7 01241 VRS80 -26.4 11.0 33 -21.4 11.7 29 1.3 12.7 8.1 01384 VRS80 -24.6 10.0 33 -26.8 14.1 35 1.3 9.9 2.1 01415 VRS80 4.1 15.3 5 8.3 15.3 I 1.7 14.7 7.0 02185 VRS80 -22.8 24.5 27 -22.1 15.9 29 2.2 15.9 12.4 02225 VRS80 02365 VRS80 -15.4 13.4 22 -14.2 13.3 22 1.5 14.5 6.6 02465 VRS80 -23.7 14.7 32 -28.6 14.6 37 1.6 14.0 0.8 02527 VRS80 -26.2 12.7 35 -29.9 13.2 39 1.4 10.1 -0.6 02544 VRS80 02591 VRS80 -23.0 16.5 32 -28.5 17.7 37 1.9 19.0 -1.3 02836 VRS80 -23.8 11.5 27 -26.5 12.8 33 1.3 9.9 3.6 02935 VRS80 -21.1 12.9 27 -21.5 13.3 29 1.5 12.9 5.1 02963 VRS80 -27.7 10.7 35 -28.5 11.4 36 1.2 9.9 6.6 03005 RS3 -36.6 21.9 16 -36.2 11.2 15 2.1 11.5 -2.8 03026 RS3 -33.8 11.6 13 -33.6 11.3 13 1.4 10.6 -3.0 03170 RS3 -28.7 14.8 8 -24.0 12.9 3 1.7 11.4 1.2 03213 RS3 -35.5 15 03322. RS3 -31.7 12.4 11 -32.9 12.3 12 1.5 11.2 -4.2 03496 RS3 -49.3 11.9 28 -54.2 11.0 33 1.4 10.8 -3.3 03502 RS3 -33.9 8.6 13 1.1 03693 RS3 -46.6 13.4 26 1.7 03743 RS3 -42.2 9.9 . 21 1.2 03763 RS3 03774 RS3 -4L3 11.4 20 -46.9 9.9 26 1.3 9.6 -6.4 03808 RS3 -49.9 14.4 29 -45.0 11.2 24 1.6 10.7 0.0 03920 RS3 -36.2 14.0 15 -29.8 10.6 9 1.5 11.6 1.6 03953 VRS80 -23.4 14.5 32 -16.4 12.4 26 1.5 11.1 -0.7 04018 VIZ -15.8 32.6 22 30.2 26.6 -9 3.3 18.3 32.2 04202 MSS 35.0 53.9 38.1 61.8 48.4 -2.4 04220 \'RS80 -1.8 12.8 4 -2.6 12.5 8 1.4 11.8 -14.8 04270 VRS80 2.9 18.4 4.8 14.2 1.8 13.1 -14.9 04320 VRS80 3.8 12.2 -2 1.8 13.0 3 1.4 10.4 0.2 04339 VRS80 8.6 11.5 -4 1.7 9.8 3 1.2 9.4 -8.4 04360 VRS80 -1.5 15.6 6 0.0 12.4 4 1.6 13.4 -10.7 06011 VRS80 -6.1 12.6 14 -13.8 13.3 22 1.4 11.3 -10.12 06030 VIZ 06181 VRS80 -7.3 17.1 16 -23.7 14.7 33 1.8 16.2 -11.1 06260 VRS80 -15.2 11.8 24 -18.5 11.8 29 1.3 9.6 0.7 - 24 -

STATION SONDE OB-FG, OOZ SO, OOZ FG-REF OB-FG, 12Z SO, 12Z FG-REF SO, MEAN/ E D NUMBER TYPE MEAN MEAN ooz MEAN MEAN 12Z STANDARD

·------~------~---- 06447 VIZ 13.1 39.1 -22 12.5 43.4 12 4.6 38.5 0.4 06476 VRS80 14.9 15.6 27 -27.2 11.6 24 1.5 12.1 -37.7 06496 06610 METLBR -42.2 25.9 -41.5 33.8 071!0 MES -34.2 38.2 -22.7 31.8 32.5 2.1 07145 MES -32.2 42.9 -0.8 39.5 39.0 25.6 07180 MES -9.0 30.5 07222 VRS80 07481 MES -50.5 31.0 -25.5 29.7 26.8 22.7 07510 MES -3.9 23.4 13.0 26.4 21.6 16.7 07645 MES -12.8 30.2 14.8 35.3 27.8 28.1 07761 MES -33.9 33.8 -21.7 26.4 28.7 17.2 08001 VRS80 5.8 16.0 36 -36.5 15.1 32 1.7 I 1.6 -50.2 08023 VRS80 -20.5 12.2 32 1.4 08140 VRS80 08221 VRS80 16.4 -34.3 08302 VRS80 12.3 -65.9 08430 VRSSO 12.9 15.1 29 -44.6 16.5 37 1.8 08495 GM60 3.0 23.6 -I -8.8 22.0 11 1.1 22.1 -13.2 08509 VIZ -45.3 27.4 36 -11.4 43.6 36 3.9 34.3 15.0 08522 VIZ -28.4 24.5 55 2.7 13.5 -6.0 08579 VRS80 21.4 13.0 21 -'-25.6 14.9 19 1.5 11.3 -53.2 08594 VIZ 14.9 38.7 11 4.3 09184 MET2-2 -13.3 27.3 13.0 24.4 26.6 33.5 09393 MET2-2 -13.0 22.4 14.9 27.6 27.7 32.6 09486 MET 30.4 31.2 09548 MET2-1 -6.4 26.4 -1.6 32.2 29.8 12.4 10035 GM60 -21.2 23.8 23 -12.7 30.3 15 1.3 28.0 14.7 10046 SPRGER 10200 SPRGER W238 SPRGER l0304 SPRGER 10338 GM60 -1!.8 22.4 14 -18.2 27.5 20 1.2 20.4 -I. I 10384 VRS80 -20.3 14.4 30 1.6 10410 GM60 -8.7 24.2 11 -2.4 22.0 4 1.1 21.6 11.5 10437 SPRGER l0618 SPRGER 10739 .G78? -24.1 20.9 -21.6 20.1 20.0 9.0 101n SPRGER 108"68 G78 -f3.7 20.6 -9.4 22.7 17.9 11.5 101}21 SPRGER l0962 GM60 11035 ·ELIN -51.0 16.3 -10.6 17.9 24.1 52.0 ll520 VINOH -1}.7 . 27.0 10.4 26.0 22.2 28.7 fl952 VINOH 20.3 40.4 23.5 42.7 32.3 15.3 12!20 MET 12330 MET 12374 MET 32.7 31.6 38~6 50.4 35.4 25.0 12425 MET 24.6 37.9 12843 MET2-2 -0.1 39.9 25.3 35.0 44.3 35.6 12982 MET2-2 20.5 31.6 31.8 37.7 32.8 23.6 13!;30 VIZ -9.9 38.8 29.1 30.0 -4 3.8 26.8 50.7 13275 VRS80 -24.7 12.8 34 1.4 15120 MET221 -15.8 67.5 49.0 55.0 63.7 80.0 15420 MET221 24.0 59.2 119.4 59.7 57.8 118.3 15480 MET221 -6.2 69.9 72.9 64.8 64.8 75.7 15614 MET2-2 -8.3 24.9 38.7 15730 M:ET2-I 64.7 80.1

/~ ,' . - 25 -

STATION SONDE OB-FG, OOZ SD, OOZ FG-REF OB-FG, 12Z SD, 12Z FG-REF SD, MEAN/ E D NUMBER TYPE MEAN MEAN ooz MEAN MEAN 12Z STANDARD

16044 VRS80 16.2 -33.7 16080 VRS80 -3.5 18.0 46 -15.2 19.6 11 2.1 13.7 -6.8 16144 VRS80 16.8 10.5 25 -31.2 11.4 27 1.2 16245 VRS80 24.1 12.8 18 -29.0 17.0 24 1.7 16320 VRS80 10.5 15.9 32 -43.1 17.4 39 1.9 15.4 -4!.2 16429 VRS80 15.3 14.9 27 -40.9 26.7 35 2.3 16.3 -43.9 16560 VRS80 21.9 14.9 20 -41.8 17.2 36 1.8 11.8 -55.2 16622 MES 19.8 35.8 167!6 VRS21 -5.4 12.1 -32.7 16.0 12.4 -11.8 16754 VRS21 -32.6 19.8 17030 -25.3 43.7 -7.3 54.3 38.6 37.4 17062 VRS80 -24.6 44.7 6.6 45.3 5.0 44.4 45.1 17130 VRS80 -54.1 32.6 -14.2 52.9 4.8 43.4 41.7 17220 VRS80 -41.9 30.5 7.1 28.3 3.3 23.0 64.8 17240 VRS80 -18.6 33.1 14.8 41.6 4.1 35.7 49.1 17280 -55.9 85.6 16.2 82.0 58.2 86.0 17352 -60.3 49.3 -2.0 57.1 17607 VIZ -9.8 26.7 34 3.0 20046 MET221 -13.6 35.6 0.9 44.4 38.7 15.2 20069 MET2-I 10.2 26.7 27.1 34.6 23.3 11.5 20107 MET221 -21.6 52.0 -17.3 39.3 33.2 8.4 20274 MET2-I -0.3 28.9 29.9 33.6 29.1 25.1 20292 MET2-I 16.4 28.1 28.9 26.6 27.9 14.1 20353 MET2-I 22.6 29.1 56.8 34.0 28.2 31.8 20674 MET2-I -4.3 38.0 6.9 29.6 25.4 19.4 20744 MET2-I -4.6 53.2 27.6 30.3 27.0 23.3 20891 MET221 -9.5 42.2 -2.7 50.5 43.6 19.1 21358 MET2-I 27.2 8.7 21432 MET2-I 8.7 18.4 21.7 26.3 24.0 15.7 21504 MET221 18.0 48.3 23.4 40.0 41.3 6.6 21647 MET2-I 40.5 32.2 21.6 17.6 25.0 -19.0 21824 MET2-I 36.0 24.5 21.7 24.7 -12.6 21965 MET2-I 25.2 -1.6 30.5 27.8 -8.7 21982 MET2-I 17.0 20.9 6.2 22.7 24.4 -14.0 22113 MET2-I 33.7 45.9 53.7 46.3 27.2 30.4 22271 MET2-I 31.0 32.1 58.3 43.2 36.4 39.3 22522 MET221 14.7 48.0 34.7 65.0 54.4 27.8 22550 MET221 -19.3 15.1 -25.0 17.7 15.5 6.2 22802 MET221 7.1 45.8 10.0 62.0 55.7 8.5 23022 MET2-I -14.0 34.1 -8.5 28.0 28.6 13.8 23146 MET221 -16.9 65.7 16.1 49.6 57.0 55.6 23205 MET221 -6.5 38.7 7.5 47.2 41.6 27.2 23330 MET2-I 64.6 40.2 58.3 30.3 22.7 17.6 23418 MET2-I 32.6 32.7 39.8 29.9 32.3 26.4 23472 MET2-I 31.9 34.4 44.0 38.6 38.3 33.0 23552 MET2-I 83.1 28.3 96.6 39.8 31.5 39.8 23804 MET2-I 33.8 36.5 46.5 36.1 29.2 28.1 23884 MET2-I 41.6 36.9 41.9 33.2 33.0 33.0 23921 MET2-I 19.2 35.6 22.3 37.7 35.1 21.0 23933 MET2-I 22.3 36.1 30.5 35.1 30.7 33.4 23955 MET221 -14.7 16.0 -14.4 19.8 14.0 23.5 24125 MET2-I 18.2 27.9 13.1 32.5 27.7 11.5 24266 MET221 3.2 54.1 29.8 46.5 44.8 35.6 24343 MET2-I -5.4 40.8 10.6 33.2 35.6 30.8 24507 MET2-I 24.7 33.8 27.5 37.7 39.3 28.8 24641 MET2-I 58.6 29.1 61.2 40.8 33.6 20.4 24688 MET221 -6.2 47.8 -3.9 49.0 44.3 27.9 24817 MET221 -7.5 72.1 -13.7 81.8 69.7 20.9 - 26 -

STATION SONDE OB-FG, OOZ SD, OOZ FG-REF . OB-FG, 12Z SD, 12Z FG-REF SD, MEAN/ E D NUMBER TYPE MEAN MEAN ooz MEAN MEAN 12Z STANDARD

24908 MET2-1 11.8 43.1 30.6 33.2 24944 MET2-I 58.8 33.5 56.4 33.5 32.5 19.2 24959 MET2-I 30.2 31.5 11.5 28.2 34.1 -0.3 25123 MET221 -9.4 70.5 9.0 44.2 47.4 18.2 25173 MET2-I 18.7 23.9 -1.1 28.2 24.7 -19.9 25399 MET221 16.9 65.1 -4.0 41.6 52.5 -18.5 25551 MET2-I 24.7 28.4 -15.2 27.9 26.5 -35.4 25563 MET2-1 48.3 25.9 3.7 38.9 27.6 -44.6 25594 MET221 26.3 56.5 2.5677 MET221 18.3 75.3 6.8 51.3 39.3 -17.9 25703 MET2-1 9.9 37.0 -20.0 33.8 35.1 -15.9 25913 MET2-l 49.3 29.9 13.2 31.6 31.5 -24.3 25954 MET221 -19.9 67.7 -11.3 44.5 42.9 12.0 26038 MET2-I 2.8 37.8 -5.8 37.0 30.1 8.8 26063 MET2-I 24.9 33.9 34.6 38.5 30.7 11.0 26258 MET2-I 14.6 32.7 24.7 44.0 33.3 29.8 26298 MET221 25.0 37.0 26422 MET2-1 -28.9 40.2 -18.2 36.7 37.7 22.5 26629 MET221 -3.2 19.6 -12.8 19.6 16.2 -0.9 26702 MET2-I 52.1 43.3 82.2 49.0 34.2 45.8 26781 MET2-I 43.1 48.7 42.6 48.1 34.7 16.1 26850 MET2-I 9.8 30.2 34.1 33.6 29.2 36.4 27037 MET221 11.5 44.0 19.6 52.1 50.7 25.3 27196 MET2-I -21.7 43.2 -4.2 44.5 33.0 32.8 27553 MET2-I -38.0 27.4 -18.5 20.6 22.9 38.5 27595 MET221 16.8 58.8 -3.6 77.0 61.2 -1.1 27612 MET2-I 13.5 36.0 37.8 43.1 37.7 38.4 27947 MET2-I 16.9 52.7 32.7 42.4 47.6 28.8 28275 MET2-I 22.7 37.3 30.7 41.5 41.0 24.9 28440 MET2-I 28.8 45.7 24.3 45.7 42.1 15.5 28698 MET2-I -13.1 30.4 -13.2 36.1 2I.I 26.2 28722 MET2-I 6.1 46.3 11.6 41.0 34.8 25.1 28900 MET2-I 3.3 67.1 25.1 55.7 47.7 38.4 28952 MET2-I 25.0 46.0 48.6 47.2 40.8 47.2 29231 MET2-1 -6.5 23.2 -5.6 29.3 24.3 26.6 29282 MET2-I 9.1 31.7 21.3 34.5 34.6 37.8 29574 MET2-I 42.2 34.6 49.4 37.3 36.1 37.0 29612 MET2-I 33.3 48.5 43.5 37 ..3 28.8 32.2 29634 MET2-I 16.4 46.5 11.4 47.1 36.6 24.4 29698 MET2-I 14.2 30.8 10.7 37.9 26.8 26.2 30054 MET221 -21.6 51.3 2.2 62.0 49.3 40.7 30230 MET2-I 32.0 29.2 36.3 31.1 30.8 27.5 30554 MET2-I 47.4 30.9 30635 MET2-I 66.5 33.5 73.9 44.4 35.8 34.9 . 30673 MET2-I 89.7 46.9 22.0 30692 MET2-1 27.6 32.4 30710 MET2-1 32.9 51.2 38.8 43.1 42.2 35.6 30758 MET2-I -19.2 25.8 -33..3 32.8 24.6 12.2 30935 MET2-I 10.9 31.8 8.0 44.9 31.7 30.4 30965 MET2-I 77.3 61.6 57.6 60.5 49.9 17.9 31004 MET2-I 49.6 32.0 45.1 44.5 40.4 18.2 31088 MET2-1 -14.6 28.4 -35.8 29.8 27.1 -0.1 31168 MET221 101.5 45.5 67.8 42.5 44.8 -7.7 31300 MET221 -18.2 25.0 -30.6 24.1 26.4 9.2 31329 MET221 68.1 61.7 31369 MET2-I 71.1 44.3 55.7 50.1 53.5 10.0 31510 MET2-I 82.0 49.0 56.7 56.4 40.3 -3.9 31707 MET2-I 111.3 42.0 - 27 -

STATION SONDE OB-FG, OOZ SD, OOZ FG-REF OB-FG, 12Z SD, 12Z FG-REF SD, MEAN/ E D NUMBER TYPE MEAN MEAN ooz MEAN MEAN 12Z STANDARD

31735 MET2-I 26.0 -23.4 23.0 27.2 5.5 31873 MET2-I 45.9 38.1 28.2 41.9 37.1 10.0 31909 MET2-l 38.5 46.9 32.8 58.3 48.9 19.6 31960 MET2-l 47.1 32.4 26.3 37.7 37.5 5.6 32061 MET2-l -24.4 20.2 -27.2 16.7 18.1 21.4 32150 MET2-l 21.9 33.3 -2.9 36.0 32.5 2.2 32165 MET2-l 34.3 20.7 9.3 33.5 26.2 -7.5 32186 MET2-I 54.4 50.1 19.9 51.5 36.7 -13.5 32217 MET2-l 54.0 33.8 16.2 28.3 28.9 -22.5 32389 MET221 1.1 56.8 -0.9 46.2 45.6 7.0 32540 MET2-l 19.8 35.2 -6.9 37.2 35.5 -13.0 32618 MET221 13.3 48.1 1.2 42.4 39.1 -8.6 33008 MET2-l -17.5 21.5 -13.4 23.8 21.6 14.7 33041 MET2-l -20.9 25.8 -7.4 28.8 22.0 25.2 33345 MET2-l -22.6 16.6 -27.7 20.5 17.8 9.4 33393 MET2-I 25.2 58.2 24.3 73.2 71.4 14.2 33631 MET2-l 50.5 30.5 55.7 31.1 30.4 16.3 33658 MET2-l 77.5 42.4 85.2 40.7 35.4 21.8 33815 MET2-l -19.4 17.5 -19.7 18.2 16.2 9.8 33837 MET2-l 54.7 40.2 55.8 43.1 42.8 8.1 33946 MET2-l 68.1 47.8 60.7 46.2 33.6 7.8 34009 MET221 -10.5 55.2 -3.2 48.8 48.8 24.7 34122 MET2-l 30.8 36.2 37.4 35.6 40.1 23.3 34172 MET2-l 5.5 32.4 4.5 28.7 28.7 15.0 34300 MET2-l 61.4 34.6 62.2 33.4 37.6 26.2 34560 MET221 -23.9 19.9 -28.4 17.6 18.3 15.9 34731 MET2-I 40.8 54.5 41.2 57.8 56.6 19.2 34858 MET2-l 5.7 36.7 -2.1 31.8 31.6 15.6 34880 MET2-l -39.0 22.2 -27.6 22.3 15.7 34.8 35108 MET2-l 72.0 62.9 81.5 60.0 39.7 30.7 35121 MET2-l 27.3 39.7 42.0 48.9 34.1 33.5 35229 MET2-l 41.5 54.4 48.6 54.4 46.9 25.4 35394 MET2-l 52.2 47.1 58.0 63.0 30.3 37.7 35746 MET2-l -22.6 29.3 -17.0 21.7 19.6 31.9 35796 MET2-l 63.7 42.6 79.8 48.3 41.5 37.0 36177 MET2-I 35.4 29.7 44.1 40.0 49.4 36870 MET2-l -3.2 36.8 15.5 45.9 29.5 36.1 37018 MET2-l -4.8 57.7 -6.1 44.8 43.7 11.2 37054 MET2-l 39.9 44.3 55.8 63.2 51.2 16.6 37260 MET2-l 37.7 38.5 45.1 45.2 39.1 30.6 37549 MET2-l -33.2 22.8 -33.6 33.0 27.8 20.7 37789 MET2-l 23.7 55.2 55.3 44.9 41.3 55.8 37985 MET2-l 39.8 30.8 43.7 39.7 31.0 22.4 38062 MET2-l 48.1 37.1 63.7 42.2 39.2 37.4 38392 MET221 2.0 70.4 45.1 69.5 62.1 58.8 38457 MET2-l 13.4 41.3 37.7 39.0 30.9 50.8 38507 MET2-l !46.0 61.7 161.2 53.6 45.4 41.9 38613 MET2-l -7.1 50.7 -8.3 54.3 44.0 20.5 38687 MET2-l -42.6 .40.5 -36.7 45.0 39.6 39.6 38750 MET2-l -4.2 45.7 10.1 49.6 42.0 42.5 38836 MET2-l 46.8 50.3 52.4 46.5 46.2 38.1 38880 MET2-l 38.8 44.1 21.1 51.3 38.8 9.2 38954 MET2-l 6.3 36.3 8.7 29.4 37.2 40.8 39700 MET2-l 40007 VRS80 40080 VRS80 8.3 17.1 34 1.9 40100 VRS80 40179 VIZ -0.7 34.5 -8 47.9 30.9 -24 3.6 28.0 68.7 - 28 -

STATION SONDE OB-FG, OOZ SD, OOZ FG-REF OB-FG, 12Z SD, 12Z FG-REF SD, MEAN/ E D NUMBER TYPE MEAN MEAN ooz MEAN MEAN 12Z STANDARD

-- ·····------····-. --·------··------40265 VIZ 3.1 33.7 -12 3.7 40373 -VRS80 14.1 15.0 40375 VRS80 -19.1 19.5 28 2.2 40394 VRS80 40416 VRS80 -34.8 22.0 44 2.4 40430 VRS80 40437 VRS80 -18.7 19.0 26 2.1 40582 VRS21 -19.0 17.6 -26.0 16.9 40650 VRS80 40706 40745 VRS80 40754 VRS80 40766 VRS80 40795 VIZ 40800 VRSSO 40809 40841 VRS80 40848 VRS80 40875 VRS80 40938 40948 -37.6 56.6 39.9 56.0 40990 4.8 17.6 41024 VRS80 -31.6 17.2 40 1.9 41062 VRS80 41114 VRS80 -11.8 20.8 21 2.3 41140 VRS80 41170 VRS80 41217 -14.9 26.5 -20.1 28.1 41256 VRS80 16.3 -10.6 18.4 16 1.9 4!316 VIZ 41344 VRSI8 -19.5 41360 VRSI8 41390 VRSI8 41467 VRS80 41530 VRS80 41594 VIZ 41661 VRS80 41675 VRS80 41756 VIZ 41780 VIZ -36.8 42.8 54 4.8 23.4 43.6 41883 41923 -13.1 72.7 41977 42027 IMMK3 155.1 42101 IM MK3 171.6 86.3 127.3 80.2 3.1 99.6 122.5 42182 IMMK3 15.2 118.8 55.7 96.8 4.0 119.1 96.5 42314 IM MK3 84.1 129.7 4.8 42339 IMMK3 -5.4 130.1 110.6 107.8 4.4 119.8 289.1 42361 IMMK3 218.2 41.9 78.2 1.6 42369 IM MK3 44.2 115.7 56.0 117.4 4.3 135.7 I 13.8 42379 IMMK3 -3.7 42397 IM MK3 42410 IMMK3 -4.9 109.4 -13.4 136.3 4.6 147.8 21.3 42492 IMMK3 124.2 I 15.9 166.9 92.2 3.9 42647 !M MK3 124.7 96.3 93.0 139.6 4.4 34.5 -22.0 42667 !M MK3 148.5 96.1 138.8 77.8 3.2 42700 IMMK3 107.3 56.2 2.1 42724 IM MK3 115.1 104.4 136.3 107.0 3.9 150.4 193.7 - 29 -

STATION SONDE OB-FG, OOZ SD, OOZ FG-REF OB-FG, 12Z SO, 12Z FG-REF SO, MEAN/ E D NUMBER TYPE MEAN MEAN ooz MEAN MEAN 12Z STANDARD -·---··--· ----- ·--- - 42779 IMMK3 132.6 106.9 4.0 42809 IM MK3 2.9 94.8 48.8 93.1 3.5 18.4 -57.5 42867 IM MK3 43.0 132.5 79.4 86.0 4.0 61.2 215.0 42971 IMMK3 60.1 114.6 84.7 117.1 4.3 107.0 91.5 43003 !M MK3 -27.1 137.0 11.7 116.2 4.7 87.8 83.8 43014 IM MK3 181.5 97.3 3.6 43041 IM MK3 148.0 71.6 160.3 80.9 2.8 43128 !M MK3 59.7 109.3 93.7 104.2 4.0 84.0 48.3 43150 IM MK3 3.7 109.5 -12.4 131.0 4.5 43185 IM MK3 122.9 74.8 147.4 96.8 3.2 43192 IM MK3 4.9 133.5 109.3 98.1 4.3 43279 IM MK3 121.9 104.5 145.8 93.3 3.7 98.3 5.9 43285 IMMK3 45.2 128.1 122.5 108.3 4.4 89.5 87.6 43295 IM MK3 183.2 86.3 183.0 80.8 3.1 43311 IM MK3 117.4 43333 IM MK3 129.2 75.5 49.7 97.6 3.2 50.2 -140.0 43346 IM MK3 96.8 113.7 94.8 113.8 4.2 108.4 -17.5 43353 IM MK3 43369 IMMK3 7.8 79.1 121.I 102.6 3.4 43371 IM MK3 165.8 88.9 189.5 71.8 3.0 75.7 33.1 43466 44212 MET2-I 55.1 54.6 67.0 58.4 45.0 40.3 44231 MET2-I 108.7 47.9 121.7 52.4 38.1 46.1 44259 MET2-I -60.2 69.5 -72.2 77.7 56.3 20.1 44277 MET2-I 40.5 57.4 56.1 49.9 44.7 29.0 44288 MET2-I 27.4 50.5 20.7 57.9 34.6 39.2 44292 MET2-I 41.7 116.7 -13.4 134.8 116.0 -9.7 44354 MET2-I 52.8 65.6 44373 MET2-I 135.1 49.1 126.2 61.2 69.0 24.2 44454 45004 VRS80 0.1 14.3 5 6.3 12.4 36 1.5 10.3 31.3 47041 8.4 65.6 42.8 2.5 47058 32.6 64.5 -10.0 52.6 40.8 -80.0 47122 MICRO -21.9 31.4 47138 VIZ 23.5 38.2 -3 -29.4 42.4 20 4.5 31.5 -12.6 47158 MICRO -8.8 27.4 -73.3 26.6 47185 47401 MEISEI -17.0 13.9 -33.6 14.5 13.8 7.7 47412 MEISEI -30.4 11.2 -48.3 13.5 12.3 5.8 47420 MEISEI -13.4 15.0 -35.0 13.3 15.2 -0.8 . ------~------·--··------~------··----·------· ------· 47580 MEISEI -11.7 15.0 -28.2 15.4 14.0 6.1 47582 MEISEI -1.2 18.8 -26.8 19.6 19.2 -2.9 47590 MEISEI -II.I 16.2 -30.5 16.7 16.9 2.9 47600 MEISEI -3.4 18.7 -24.8 19.9 16.1 7.2 47646 MEISEI -7.7 13.4 -33.2 13.1 13.7 -0.1 47678 MEISEI -9.7 20.5 -32.2 19.2 19.4 3.4 47681 MEISEI -9.6 19.0 -32.4 16.5 15.8 5.0 47744 MEISEI 6.6 20.4 -27.7 17.5 15.5 1.7 47778 MEISEI -7.4 20.7 -29.5 21.3 18.9 7.9 47807 MEISEI 5.3 21.2 -27.6 18.5 14.0 3.6 47827 MEISEI 7.0 22.5 -27.4 22.5 20.4 -3.8 47881 MEISEI 47909 MEISEI -3.7 24.6 -29.7 23.7 17.7 -1.1 47918 MEISEI -1.7 16.9 -18.9 16.1 13.4 6.8 47936 MEISEI -9.3 13.1 -29.9 12.9 10.5 3.6 47945 M EIS El -17.1 19.3 -30.5 16.0 14.6 8.7 47971 MEISEI -7.1 18.3 -20.7 18.7 14.9 4.7 47991 MEISEI -12.0 15.4 -26.6 16.8 13.3 -2.6 - 30 -

STATION SON DE OB-FG, OOZ SD, OOZ FG-REF . OB-FG, 12Z SD, 12Z FG-REF SD, MEAN/ E D NUMBER TYPE MEAN MEAN ooz MEAN MEAN 12Z STANDARD

48008 48053 48062 VRSI8 48097 AS TOR 48108 ASTOR 48327 MICRO -41.3 53.1 -35.9 54.3 47.9 37.3 48407 VIZ -25.7 41.1 41 -2.1 41.2 -7 4.6 35.8 40.6 48455 VIZ -72.8 41.5 87 -72.1 49.5 69 5.1 39.1 20.9 48568 VIZ -36.2 39.0 50 -44.8 43.6 36 4.6 36.5 2.4 48601 VRS80 -16.1 23.0 16.9 23.2 2.6 20.2 45.1 48615 VRS80 31.3 33.2 48648 ASTOR -22.0 34.5 -19.0 30.2 48657 ASTOR -2.0 43.7 19.9 42.6 35.0 37.5 48698 VRS80 -21.1 18.4 26 -20.1 19.7 62 2.1 48820 92.3 70.9 35.2 41.4 56.3 -18.1 48855 48900 90.8 65.2 50527 SHANG 22.3 34.3 1.2 33.7 28.7 6.3 50557 SHANG 44.4 30.6 21.6 31.5 28.0 0.9 50774 SHANG 41.6 33.5 33.8 39.1 32.5 12.8 50953 SHANG 26.8 36.5 10.3 33.9 37.6 9.7 51076 SHANG 8.0 ' 31.9 -1.7 32.9 34.0 21.5 51431 SHANG -5.2 37.4 13.3 37.0 34.2 55.5 51463 SHANG 5.4 32.8 -5.7 31.3 28.7 30.6 51644 SHANG 7.4 38.2 10.5 34.9 31.2 45.2 51709 SHANG -10.4 38.2 6.4 41.8 38.5 55.5 51777 SHANG 15.2 36.6 13.5 37.4 37.4 32.6 51828 SHANG' -10.6 35.3 -5.2 34.4 28.9 42.8 51848 SHANG -17.4 36.2 -0.7 39.4 52203 SHANG 17.4 35.9 14.5 39.0 31.4 37.4 52267 SHANG 14.2 3l.l 17.0 30.8 30.2 42.8 52323 SHANG 32.3 33.1 29.8 38.6 30.2 40.3 52418 SHANG 4.4 32.4 -2.5 35.6 35.0 37.2 52533 SHANG 28.2 30.5 28.6 33.8 33.5 42.2 52681 SHANG 24.8 29.7 25.7 29.5 31.7 44.9 52818 SHANG 8.3 45.9 1.5 43.4 38.2 33.3 52836 SHANG 35.6 38.0 6.5 44.7 36.3 12.9 52866 SHANG 15.5 33.6 -7.6 32.5 32.5 19.8 52889 SHANG 1.1 35.6 0.3 34.2 30.9 38.6 53068 SHANG 3.4 37.3 11.0 45.3 28.7 31.1 53463 SHANG 32.8 34.2 28.3 41.6 34.7 31.8 53513 SHANG 19.1 42.8 27.0 45.3 43.2 43.9 53614 SHANG 45.3 41.7 40.4 39.2 36.5 33.7 53772 SHANG 42.8 40.1 24.9 31.8 34:8 19.9 53845 SHANG 37.1 33.7 28.1 36.0 34.7 28.1 53915 SHANG 22.8 31.5 0.2 35.9 33.7 18.2 54102 SHANG 10.2 49.5 32.6 44.2 40.3 56.3 54135 SHANG 36.8 34.9 17.7 37.8 36.0 13.7 54161 SHANG 41.8 33.4 28.0 36.9 34.0 14.1 54218 SHANG 62.3 32.2 31.8 46.3 39.7 1.5 54292 SHANG 47.1 29.2 14.5 30.7 28.8 -0.3 54337 SHANG 41.4 75.8 30.8 66.6 51.6 9.8 54342 SHANG 31.1 39.8 10.8 37.8 38.6 12.5 54374 SHANG 65.0 33.3 25.9 41.8 39.5 -9.4 54497 SHANG 58,8 61.6 24.1 61.7 47.7 2.5 5451 I SHANG 37.7 47.6 34.3 34.2 36.7 29.3 54662 SHANG 62.6 35.2 42.4 41.0 33.0 15.4 54823 SHANG 68.8 39.9 32.9 39.6 38.5 3.3 - 31 -

STATION SONDE OB-FG, OOZ SD, OOZ FG-REF OB-FG, 12Z SD, 12Z FG-REF SD, MEAN/ E D NUMBER TYPE MEAN MEAN ooz MEAN MEAN 12Z STANDARD

------···------···-~----~------· ··------. .. ··- -···--·------·------·· ------~------54857 SHANG 38.9 34.6 23.4 47.3 40.3 19.7 55299 SHANG 42.9 33.1 48.2 41.1 37.5 38.7 55591 SHANG 65.6 43.0 63.7 49.5 43.1 30.2 56029 SHANG 15.6 48.0 28.0 57.6 38.3 48.9 56080 SHANG 22.6 59.0 24.4 42.5 35.9 40.4 56137 SHANG 42.8 38.1 54.2 37.4 35.4 47.8 56146 SHANG 24.5 38.6 42.0 43.9 34.8 51.7 56294 SHANG 66.4 35.8 59.4 47.2 39.3 29.8 56571 SHANG 34.0 34.6 38.3 49.8 39.9 37.6 56691 SHANG 12.8 35.6 17.0 34.4 35.4 39.2 56739 SHANG 35.8 37.9 54.6 38.3 34.6 54.1 56778 SHANG 34.7 38.3 61.3 45.8 35.6 59.2 56964 SHANG 61.0 38.0 87.5 38.3 40.3 61.3 56985 SHANG 54.2 36.1 55.1 46.8 57036 SHANG 47.8 27.3 29.7 38.6 34.4 22.7 57083 SHANG 77.2 43.1 54.5 34.9 38.2 10.9 57127 SHANG 59.2 36.9 56.5 37.8 37.4 40.2 57178 SHANG 56.2 36.8 46.9 37.4 33.7 27.2 57447 SHANG 47.2 30.2 39.7 37.2 33.6 30.3 57461 SHANG 58.6 40.6 36.3 32.1 41.3 17.1 57494 SHANG 77.8 50.8 57.2 40.0 40.7 15.2 57516 SHANG 56.7 36.2 64.8 36.7 57679 SHANG 108.5 37.7 64.7 39.5 41.2 -16.7 57749 SHANG 53.5 34.9 46.1 38.7 57816 SHANG 53.8 38.9 43.8 41.7 38.9 21.8 57957 SHANG 66.3 35.9 63.3 37.6 36.8 25.2 57972 SHANG 52.3 39.7 44.0 37.1 35.1 17.7 57993 SHANG 46.5 35.5 34.6 33.0 35.5 15.6 58027 SHANG 42.1 42.3 20.5 46.4 39.5 7.0 58150 SHANG 63.2 33.4 53.9 31.3 26.8 28.1 58203 SHANG 75.0 39.2 50.2 48.6 32.9 15.3 58238 SHANG 46.0 41.8 13.9 . 36.2 35.9 6.0 58367 SHANG 71.7 38.2 46.3 44.6 38.5 8.5 58424 SHANG 86.0. 46.1 72.8 46.2 38.8 20.1 58457 SHANG 74.5 36.4 41.1 33.2 32.8 -0.6 58606 SHANG 38.4 38.9 25.5 32.6 32.3 13.5 58633 SHANG 66.4 39.1 50.9 34.7 35.1 13.8 58666 SHANG 56.7 30.4 32.9 40.6 31.2 -2.2 58725 SHANG 58.6 32.6 39.7 33.5 32.5 4.1 58847 SHANG 57.2 42.5 30.8 39.9 41.4 1.3 58968 SHANG -9.1 29.6 -29.5 28.6 59134 SHANG 57.4 33.4 45.5 38.7 33.1 11.8 59211 SHANG 62.3 47.6 50.3 49.2 34.8 23.0 59265 SHANG 65.8 32.4 60.5 32.9 28.9 23.5 59287 SHANG 63.7 37.4 25.4 39.5 36.5 -11.8 59316 SHANG 57.8 46.7 34.1 40.2 42.6 1.1 59431 SHANG 85.6 43.9 73.6 48.4 41.5 18.3 59553 SHANG 59758 SHANG 55.5 46.2 53.8 43.0 39.8 27.9 59981 SHANG 42.9 42.4 44.2 36.5 37.1 18.5 60020 VRS80 -4.5 19.6 47 -39.8 15.1 33 1.9 17.5 -47.3 60155 MES -24.3 39.3 60191 MES 60250 MES 60390 VRS21 -26.7 20.2 -17.1 22.9 19.2 13.9 60550 RKZ-5 -32.1 57.8 60566 VRSI8? 60571 VRSI8 -35.3 47.9 -4.2 40.2 34.3 27.1 ... 32 -

STATION SONDE OB-FG, OOZ SD, OOZ FG-REF ·. OB-FG, 12Z SD, 12Z FG-REF SD, MEAN/ E D NUMBER TYPE MEAN MEAN ooz MEAN MEAN 12Z STANDARD -- 60680 VRSI8 -51.2 39.1 -20.9 28.6 17.0 6.7 60715 ·VRS80 21.2 14.4 21 1.6 60760 VRSI8 5.0 79.7 61052 VRS80 -3.2 18.4 12.8 16.2 1.9 16.7 26.1 61202 VRS18 61223 VRS80 61291 VRS80 -7.7 18.8 16.6 18.3 2.1 17.3 24.7 61415 VRS80 9.8 11.5 1.3 61641 VRS80 -8.5 19.8 9.4 23.6 2.4 14.0 12.1 61901 VRS80 8.3 25.5 -7 2.8 61902 MSS -32.1 22.6 61967 VIZ 19.5 23.4 -28 62.0 74.2 -48 5.4 29.1 15.6 61996 MES -40.9 38.7 61998 MES -57.8 26.5 62010 VRS80 23.4 25.8 19 -20.3 22.1 13 2.7 12.5 -39.3 62019 VRS80 62053 VRS80 26.9 34.9 15 -26.3 25.0' 21 3.3 18.8 -47.7 62{}62 VRS80 62103 VRS80 62124 VRS80 -38.5 31 62271 VRS80 -1.6 20.4 -3 2.3 62306 VIZ 234.2 -209 56.4 167.0 62378 VIZ 62414 VIZ 62641 VRSI8 62650 VRSI8 62721 VRSI8 62760 VRSI8 62840 VRS18 63021 VRS80 63450 VRS80 63478 VRS80 63723 MES73A 63741 MES73A -41.0 42.7 -4.7 35.9 17.2 27;{} 63832 VRS18 63894 VRS18 63985 VRS80 10.5 -21.5 34.6 3.8 8.2 -5.0 64650 VRS80 -8.8 6.3 24.7 2.7 10.2 32.5 64700 VRS80 64910 VRS80 -17.6 18.3 27 -16.6 23.3 28 2.3 21.3 23.8 65046 65123 VRSIS. 65202 VRSIS 65418 65578 VRS80 -14.7 32.4 9.8 30.7 3.5 26.2 24.5 66160 67083 VRS80 -18.7 29.3 7.3 32.3 3.4 20.3 20.3 67197 VRS80 -21.2 32.0 3.6 34.6 36.5 67237 VRS80 67341 VRS80 -0.8 17.3 5 1.9 67586 67666 VRS80 -7.6 22.8 14 2.5 67774 VRS80 33.5 20.2 2.2 67964 VRS80 34.7 28.9 3.2 68112 VRS80 68174 VRS80 -33.8 35.0 11.4 35.8 3.9 27.6 23.1 68240 -5.4 62.9 68263 VRS80 -19.8 22.7 19.2 25.8 2.7 19.6 32.4 - 33 -

STATION SONDE OB-FG, OOZ SD,OOZ FG-REF OB-FG, 12Z SD, 12Z FG-REF . SD, MEAN/ E D NUMBER TYPE MEAN MEAN ooz MEAN MEAN 12Z STANDARD

68351 VRS80 68406 VRS80 68424 VRS80 -17.5 31.6 28.7 29.2 3.4 20.5 33.8 68442 VRS80 -18.4 17.3 18.7 18.6 2.0 14.I 30.9 68461 VRS80 I8.4 21.9 2.4 685I2 VRS80 -22.5 20.6 18.1 I7.3 2.I 68588 VRS80 -17.9 27.0 17.3 23.I 2.8 20.4 33.I 68816 VRS80 -27.6 24.4 0.7 26.5 2.8 I7.4 26.6 68842 VRS80 -8.8 24.6 I8.2 26.I 2.8 19.8 27.8 68906 ·VRS80 -26.0 24.7 5.8 30.5 3.I 24.0 31.5 68994 VRS80 -37.6 28.4 -16.0 31.2 3.3 28.6 36.2 70026 VIZ 21.3 I7.4 -I -16.7 I7.3 29 1.9 I5.4 -37.1 70086 VIZ 17.0 I6.6 3 -I7.5 I8.0 30 1.9 I6.6 -32.9 70133 VIZ 5.9 19.1 15 -35.0 I6.2 46 2.0 I7.3 -42.2 70200 VIZ 1.3 16.7 20 -44.3 15.8 49 1.8 16.8 -48.3 702I9 VIZ 27.6 20.2 -5 -29.4 16.7 25 2..1 19.6 -53.8 70231 VIZ 21.3 16.5 0 -34.5 21.0 38 2.I 16.I -55.0 70261 VIZ 19.1 15.9 -29.1 16.4 41 1.8 13.4 -48.4 70266 VIZ . 70273 VIZ 22.2 15.3 -l -34.4 18.4 37 1.9 I6.4 -55.9 70308 VIZ 26.3 25.6 -3 -45.3 17.4 36 2.4 24.1 -67.8 70316 VIZ 23.2 28.1 0 -48.6 16.5 40 2.5 20.6 -65.8 70326 VIZ 23.2 16.9 -I -39.6 21.2 31 2.1 17.5 -61.0 70350 VIZ I4.6 19.0 7 -42.6 20.7 34 2.2 I7.6 -60.2 70361 VIZ 18.6 21.3 2 -33.I I8.4 39 2.2 16.1 -54.9 70398 VIZ 23.9 16.5 -4 -32.7 21.9 37 2.1 I6.2 -64.8 70414 MSS 11.9 39.4 -23.7 35.9 26.0 -29.0 70454 VIZ 52.6 57.3 -28 -7.9 28.4 -I 4.8 25.5 -53.0 71043 SANG 6.9 I8.I -16.8 18.1 15.2 -31.1 71051 SANG 7I072 SANG 5.4 21.5 -7.6 19.2 17.0 -18.1 7I081 SANG -I4.0 I5.0 -6.1 21.6 I7.0 -12.2 71082 SANG 0.3 I7.6 0.4 19.3 17.1 2.7 7II09 SANG 6.8 19.6 -33.7 I8.6 I5.1 -51.2 7III5 SANG 24.8 22.8 -10.5 21.6 20.9 -51.1 71119 SANG -3.3 I7.8 -20.2 I8.5 I6.7 -34.8 71399 SANG 22.5 13.8 71600 SANG -I7.4 23.3 23.3 I8.3 20.2 14.7 71722 SANG -I5.6 19.7 8.1 I8.5 16.9 -7.1 .. -- .. ~ ·- .... ----- ·-- -- - 71801 SAI\G -44.3 20.0 7.8 23.I 20.0 26.8 7I81I SANG -24.9 I9.7 2.9 19.1 I6.6 1.9 71815 SAI\G -35.1 24.4 0.9 25.2 25.I 8.0 7I816 SANG -I5.6 19.7 16.5 I8.7 I9.8 7.0 71823 SANG 7I836 SA:-.'G -I6.2 21.6 2.0 21.2 23.2 -10.1 7I848 SANG -4.I 28.9 -3.7 29.8 26.3 -27.6 7I867 SANG 9.8 I9.3 1.4 17.6 I7.8 -34.0 7I896 VRS80 -7.9 13.1 I3 -I6.8 15.2 21 1.6 10.8 -22.3 71906 SANG -19.2 18.2 1.5 21.9 19.5 -4.2 71907 SANG -9.9 18.7 0.1 18.1 14.5 -17.7 7I909 SANG 17.8 12.4 17.8 17.1 -3.7 7I913 SAI\G 0.7 19.7 10.7 18.2 17.5 -14.4 71915 SAI\G 7.7 16.6 19.0 24.2 16.4 -7.9 7I917 SANG 4.5 14.6 -2.3 20.2 14.4 -7.6 71924 SANG -4.6 20.6 -10.2 21.2 17.5 -13.5 71925 SANG 2.5 18.1 -7.2 19.3 15.6 -24.8 71926 SANG -4.4 17.4 -3.1 18.5 15.6 -18.6 71934 SANG 1.7 14.2 -13.2 17.6 13.7 -33.3 ,.;; 34 -

STATION SONDE OB-FG, OOZ SO, OOZ FG-REF OB-FG, 12Z SO, 12Z FG-REF SO, MEAN/ E D NUMBER TYPE MEAN MEAN ooz MEAN MEAN 12Z STANDARD

71945 SANG 19.7 18.3 -2.7 18.6 17.2 -37.0 71957 SANG 0.2 16.5 -20.2 18.4 1~.5 -26.7 71964 SANG 17.9 20.2 -17.0 18.0 16.1 -39.7 72201 VIZ -6.3 18.9 18 -3.5 22.0 18 2.3 18.5 ,.-21.7 72203 VIZ -14.7 27.2 26" 24.1 16.2 -9 2.4 23.8 17.1 72208 VIZ -19.3 28.8 31 12.8 24.2 3 2.9 22.2 -4.6 72209 VIZ 72210 VIZ -7.7 24.5 20 -1.3 18.3 16 2.4 19.0 -14.5 72213 VIZ -7.3 22.0 20 1.2 16.4 14 2.1 15.3 -13.3 72220 VIZ -5.0 23.5 18 0.3 20.7 14 2.5 17.7 -17.2 72221 MSS 72224 VIZ 72225 VIZ 72229 VIZ -3.2 22.2 17 -1.6 !8.8 16 2.3 18.3 -24.3 72233 VIZ 72235 VIZ 2.3 39.8 ll 2.2 21.5 11 3.4 18.9 ,...29.4 72239 VIZ 72240 VIZ 0.3· 19.4 14 -3.5 18.6 17 2.1 15.4 -30.8 72247 VIZ -2.9 15.8 17 -8.9 19.4 22 2.0 15.8 -37.4 72250 VIZ 13.5 20.6 ·I -4.3 22.1 16 2.4 21.4 -:-44.2 72255 VIZ 11.0 24.7 4 -5.2 28.3 17 2.9 20.7 -37.6 72257 VIZ 72260 VIZ 4.5 27.0 11 -13.9 24.2 26 2.8 20.1 -42.5 72261 VIZ -6.4 28.6' 22 6.8 26.7 5 3.1 27.9 -10.0 72265 VIZ 3.9 21.9 12 -21.0 20.1 33 2.3 14.6 -48.8 72269 MSS 72270 VIZ 26.3 29.0 -10 -24.4 27.9 31 3.2 30.3 -74.1 72274 VIZ 13.8 21.4 4 -27.7 18.6. 25 2.2 17.7 -57.5 72290 VIZ 6.9 27.8 12 -35.2 31.0 26 3.3 23.2 -56.5 72291 VIZ 72303 VIZ 72304 VIZ -8.6 17.0 20 8.0 20.6 8 2.1 19.9 -8.1 72311 VIZ -3.9 19.0 17 6.0 17.9 9 2.0 17.4 -15.2 72317 VIZ -1.8 22.4 14 13.4 18.1 2 2.3 19.5 -13.7 72327 VIZ 4.2 20.0 9 8.2 17.5 6 2.1 17.6 -23.3 72340 VIZ -11.0 25.3 25 16.8 19.7 -3 2.5 21.6 1.4 72349 VIZ 11.8 18.5 3 3.5 15.4 10 1.9 16.0 -J8.4 72353 VIZ 6.2 24.9 9 -8.9 18.8 22 2.4 19.6 -45.3 72355 VIZ 72363 VIZ 11.3 25.1 5 -16.5 20.9 29 2.6 21.4 -51.2 72365 VIZ 10.4 25.6 6 -19.2 25.4 30 2.8 22.9 -51.5 72367 VIZ 72374 VIZ 10.4 21.2 7 -33.1 18.0 35 2.2 19.2 -62.1 72381 MSS 72387 MSS 33.1 23.3 -23.3 25.2 21.3 -70 ..8 72393 MSS 9.0 25.2 -17.3 22.3 . 14.3 -53.3 72402 VIZ 8.3 24.6 4 19.5 26.8 -3 2.9 26.7 -14.7 72403 VIZ -15.3 16.9 28 -8.2 17.9 24 1.9 20.7 -24.4 72407 VIZ -22.0 20.2 34 1.4 19.7 15 2.2 72424 VIZ 72425 VIZ -1.6 18.9 15 5.7 17.7 10 2.0 16.7 -21.3 72429 VIZ 5.4 21.1 8 12.9 18.4 2 2.2 21.5 -22.1 72433 VIZ 9.6 21.5 4 9.7 21.5 5 2.4 21.1 -28.8 72451 VIZ 14.1 28.7 2 -11.6 26.3 24 3.1 24.4 -52.6 72456 VIZ 7.4 19.8 8 -6.0 19.1 19 2.2 19.8 -42.4 72468 VIZ 72469 · VIZ 9.7 25.4 7 -8.7 19.2 21 2.5 20.2 -47.3 72476 VIZ 16.6 25.1 -24.5 19.9 36 -62.6 2.5 19.3-- - 35 -

STATION SONDE OB-FG, OOZ SD, OOZ FG-REF OB-FG, 12Z SD, 12Z FG-REF SD, MEAN/ E D NUMBER TYPE MEAN MEAN ooz MEAN MEAN 12Z STANDARD - --··· .. -· ----·-· --- -· . 72486 VIZ 10.6 25.6 8 -30.0 20.3 30 2.6 24.3 -54.2 72493 VIZ 23.4 24.7 -4 -29.2 25.8 20 2.8 18.1 -60.9 72518 VIZ -5.6 20.6 18 14.2 18.9 3 2.2 16.0 -6.9 72520 VIZ -6.2 16.8 19 3.1 19.6 13 2.0 18.3 -22.5 72528 VIZ 5.5 19.6 7 7.8 20.8 8 2.2 21.6 -27.2 72532 VIZ 1.0 19.7 13 3.7 20.5 11 2.2 19.5 -29.9 72553 VIZ 0.4 17.9 15 -5.5 16.3 19 1.9 19.7 -33.7 72562 VIZ 0.7 18.2 15 -11.5 16.3 24 1.9 17.7 -41.0 72572 VIZ 16.6 19.2 I -21.5 21.0 30 2.2 15.7 -55.2 72576 VIZ 12.8 19.2 5 -19.3 17.0 31 2.0 16.6 -57.3 ·-·------~----· .. --··--- ~- ---- 72583 VIZ 22.8 26.6 -4 -27.6 17.2 25 2.4 20.8 -66.5 72597 VIZ 12.7 22.3 7 -39.5 17.6 31 2.2 17.7 -62.8 72606 VIZ -18.7 18.7 30 11.0 15.2 7 1.9 17.1 1.8 72645 VIZ -2.9 18.1 17 1.6 16.6 13 1.9 19.6 -26.6 72654 VIZ 7.0 24.3 9 -3.6 16.6 17 2.3 18.9 -38.9 72655 VIZ 9.6 18.0 6 5.5 18.0 9 2.0 17.2 -32.8 72662 VIZ 6.1 18.9 10 -11.6 15.9 24 1.9 15.9 -44.8 72681 VIZ 18.3 20.0 0 -22.6 17.1 27 2.1 22.3 -57.1 72694 VIZ 9.2 21.6 10 -37.9 20.8 34 2.4 17.1 -58.5 72712 VIZ -16.0 18.4 28 11.7 15.3 6 1.9 15.9 -0.6 72734 VIZ 15.3 -23.4 72747 VIZ -15.3 17.6 31 8.4 20.9 6 2.1 18.8 -10.0 72764 VIZ -0.3 19.5 17 -7.7 15.4 21 1.9 14.7 -33.5 72768 VIZ 12.8 16.7 4 -10.1 14.5 23 1.7 18.9 -45.6 72775 VIZ 8.7 19.4 9 -19.4 28.5 31 2.7 23.2 -49.1 72785 VIZ 15.2 29.5 4 -27.8 20.8 37 2.8 17.0 -57.6 72797. VIZ 11.2 21.5 9 -42.8 20.7 42 2.3 15.9 -66.0 73455 VIZ 74230 VIZ 74420 VIZ 7442.1 VIZ 74494 VIZ -12.6 24.1 24 32.7 52.1 . -15 4.2 39.5 14.2 74500 VIZ 74501 VIZ 74504 MSS 74521 VIZ 74606 MSS 74611 VIZ 74612 MSS 74630 VIZ 74631 VIZ 74702 VIZ 74718 VIZ 74731 VIZ 74733 VIZ 74734 VIZ 74794 MSS -17.5 36.0 76151 VIZ -10.1 42.0 4.7 14.1 -61.3 76225 VIZ 18.8 22.4 -2 -10.3 27.8 13 2.8 23.8 -52.6 76256 VIZ 37.0 38.5 -20 -9.5 36.9 I 4.2 32.3 -73.5 76394 VIZ 28.2 23.9 -13 1.3 39.8 lO 3.5 31.7 -56.4 76458 VIZ -15.4 24.6 31 -47.2 47.7 44 4.0 23.4 -59.2 76612 VIZ -12.7 25.0 !I 2.8 76644 VIZ 11.3 32.9 5.9 26.6 7 3.3 31.6 -33.8 76654 VIZ -65.1 38.3 60 4.3 76679 VIZ -4.0 29.3 18 -14.1 33.8 22 3.5 26.9 -38.5 76692 VIZ -2.1 26.9 16 -18.0 25.3 29 2.9 26.1 -38.3 76723 VIZ -34.3 61.8 25 6.9 ,_ 36 -

STATION SONDE OB-FG, OOZ SD, OOZ FG-REF OB-FG, 12Z SD, 12Z FG-REF SD, MEAN/ E D NUMBER TYPE MEAN MEAN ooz MEAN MEAN 12Z STANDARD

·--·---~------~------·--· ----~·--·- ··------· ------~-~------~------· ---~------78016 VIZ -51.0 37.1 42 10.4 32.7 8 3.9 30.6 44.7 78073 VIZ -11.1 17.7 27 2.0 78325 78355 78367 153.6 35.8 78384 -19.0 33.4 -6.1 21.3 21.5 -16.1 78397 -56.9 25.8 -0.0 24.7 23.8 14.8 78486 VIZ 16.4 0 78526 VIZ -42.4 23.4 33 0.8 19.7 17 2.4 21.8 22.1 78583 -27.7 32.9 -8.7 25.9 21.8 -20.8 78641 VIZ 78720 VIZ 78762 VIZ 78806 MSS 49.1 31.7 78861 VIZ -20.8 23.7 39 2.6 78866 VIZ 9.8 28.3 8 3.1 78897 VIZ -2.7 39.0 21 4.3 78954 VIZ? -43.1 46.9 6.1 23.1 19.3 25.6 78970 VIZ -68,5 21.1 59 -17.6 37.5 35 3.3 20.2 26.4 78988 VIZ -25,4 28.6 16 15-8 25.4 0 3.0 25.5 22.4 80222 VIZ -49.9 12.7 41 -21.2 35.0 36 2.7 13.6 3.8 80241 VRSI8 80337 VRS80 80398 VRS80 80413 VRS80 -18.4 35.1 21 3.9 80447 VRS80 80462 VRS80 80476 VRS80 81405 MES -24.7 45.9 82193 49.4 40.8 • '48.8 10~2 82280 VRS80 82332 VRS80 57.2 33.3 3.7 34.9 15~7 82397 VRS80 -40.7 26.4 2.9 82400 VRS80 48.6 62.9 7.0 82599 VRS80 ::•- 82678 VRS80 82765 VRS80 82900 VRS80 -34.9 58.0 6.4 82983 VRS80 83208 21.0 45.0 83229 VRS80 83288 VRS80 83378 VRS80 83498 VRS80 83612 VRS80 52.3 7.8 83650 VRS80 83746 VRS80 10.1 30.4 3.4 83780. VRS80 49.0 21.4 2.4 . 18.4 -37.5 83840 VRS80 30.9 37.3 4.1 39.6 41.5 83971 VRS80 7.5 28.9 3.2 25.1 -2.4 84008 VRSI8 84203 VIZ 84377 VIZ 84628 VIZ -44.6 50.3 36 5.6 85201 VIZ -25.3 45.3 39 5.0 85442 VIZ -22.5 23.6 35 2.6 85469 VIZ 7.1 44.7 5 5.0 85543 VIZ 35.0 27.1 -44 17.2 46.7 -6 4.1 23.8 -11.7 - 37 -

STATION SON DE OB-FG, OOZ SD, OOZ FG-REF OB-FG, 12Z SD, 12Z FG-REF SD, MEAN/ E D NUMBER TYPE MEAN MEAN ooz MEAN MEAN 12Z STANDARD ----·------· ------·------85799 VIZ -41.1 23.4 39 2.6 85934 VIZ -54.6 30.5 46 3.4 86218 32.1 45'.9 87047 VRS80 -33.6 49.8 5.5 87155 VRS80 87344 VRS80 -32.6 33.8 3.8 87418 VRS80 -9.7 39.8 4.4 87576 VRSSO 0.8 22.5 -23.6 24.2 2.6 14.5 -23.6 87623 VRS80 -56.6 34.1 3.8 87715 VRS80 -45.8 26.5 2.9 87748 VRS21 14.2 57.5 87860 VRS80 -34.0 30.3 3.4 88889 VRS80 5.7 20.9 36 -17.9 19.9 28 2.3 88968 89001 VRS80 -22.3 24.5 34.0 30.2 3.0 24.9 -2.8 89002 GM60 -11.3 27.3 13 0.7 89009 VIZ -42.8 37.9 34 4.2 89022 VRS80 -11.2 36.0 53 4.0 89050 MET 7.0 44.9 89055 VRS80 -46.6 34.9 3.9 89056 89512 MET 65.1 50.6 54.4 14.2 89532 MEISEI -28.6 23.1 -39.2 21.1 15.7 -0.4 89542 MET 8.3 24.9 12.2 25.4 28.5 11.1 89564 -48.7 32.1 89571 VRS80 27.2 3.0 89592 MET 52.0 46.9 14.5 51.3 89606 MET -15.8 33.3 25.4 -11.3 89611 VRS80 -Q.4 29.9 9 2.0 18.8 7 2.7 13.6 4.6 89642 -38.9 37.8 89657 25.7 50.0 89664 VIZ -44.5 23.6 36 2.6 91066 VIZ -8.5 23.6 38 -50.6 23.3 42 2.6 19.2 -37.5 91165 VIZ 16.8 21.3 10 -31.7 22.2 23 2.4 18.7 -52.0 91217 VIZ 22.3 25.1 I -28.3 21.8 19 2.6 21.3 -40.0 91245 VIZ 26.0 33.6 2 -16.3 24.0 7 3.2 19.1 -31.3 91275 VIZ 91285 VIZ 15.0 19.6 11 -30.3 21.7 21 2.3 17.6 -50.7 91334 VIZ -4.2 25.2 28 2.8 91348 VIZ -7.0 25.5 32 2.8 91366 MSS -11.1 36.8 33.4 -47.9 91376 VIZ -4.0 25.2 31 2.8 91408 VIZ 13.3 26.1 7 2.9 91413 VIZ 30.0 36.6 -8 4.1 91517 91557 VRSBO -16.2 21.1 18. 2.3 13.4 -7.5 91592 MES 15.1 36.1 91610 VIZ 91643 VIZ -51.4 32.5 75 3.6 91680 ASTOR -23.8 45.0 91765 14.7 24.1 -41.1 29.7 27.5 -56.1 91801 VIZ 91843 VIZ -36.4 48.1 56 5.3 91925 MES 5.9 38.8 91938 MES -0.6 29.9 91943 MES 91944 MES -23.8 57.9 91948 MES? .:.. 38 -

STATION SONDE OB-FG, OOZ SD, OOZ FG-REF . OB-FG, 12Z SD, 12Z FG-REF SD, MEAN/ E D NUMBER TYPE MEAN MEAN ooz MEAN MEAN 12Z STANDARD

91958 -5.4 35.7 93012 VIZ -5.9 37.5 23 -48.3 36.4 39 4.1 93780 VIZ 93844 VIZ -15.4 36.1 31 -52.3 26.9 43 3.5 34.7 .-42.5 93944 VRS80 -14.2 22.2 -14.7 2.5 93986 VRS80 -0.8 18.4 3 -12.1 20.0 21 2.1 94120 VRS80 -28.7 17.0 33 -19.7 17.0 29 1.9 14.9 11.6 94150 VRS80 -20.1 16.2 25 -11.0 14.8 20 1.7 94203 VRS80 -29.5 15.8 32 1.8 94294 VRS80 -17.8 18.6 23 2.1 94299 VRS80 -25.1 16.4 31 1.8 94300 VRS80 -62.6 24.4 65 2.7 94312 VRSSO -29.1 20.5 31 2.3 94326 VRS80 -26.0 19.6 29 2.2 94332 VRS80 -27.3 17.0 31 1.9 94380 VRS80 -15.5 22.3 21 2.5 94461 VRS80 -6.1 45.4 8 5.0 94510 VRSSO -1.1 22.4 5 2.5 94527 VRS80 1.7 18.5 2 2.1 94578 VRS80 -!9.8 21.9 24 2.4 94610 VRS80 1.5 28.2 0 -2.1 22.0 11 2.8 16.9 6.8 94637 . VRS80 94638 VRS80 11.0 17.9 -9 2.0 94659 VRS80 9.7 27.5 -7 3.1 94672 VRS80 6.9 27.5 -5 4.1 16.9 5 2.5 13.9 4.0 94711 VRS80 8.2 24.1 -5 2.7 94750 VRSSO 1.6 25.4 I 2.8 94767 VRS80 94776 VRSSO 17.6 41.6 -14 4.6 94802 VRS80 0.0 29.0 2 3.2 94821 VRS80 22.5 2.5 94865 VRSSO 0.8 20.6 -3.1 23.1 12 2.4 21.8 10.7 94867 VRSSO 94910 VRS80 11.5 23.7 -9 2.6 94975 VRS80 -48.. 6 25.3 51 -74.9 26.2 84 2.9 22.7 -21.3 94995 VRS80 -5.4 20.9 10 2.3 94996 VRS80 -19.7 18.4 25 2.0 94998 VRSSO -11.1 20.0 13 27.2 •' 2.6 13.2 -0.3 96035 20.2 96163 96237 -37.1 111.6 96315 -41.0 48.9 96413 ASTOR -52.6 32.2 -82.7 35.8 28.5 -16.7 96441 AS TOR -74.1 42.0 -79.3 44.7 35.5 5:5 96471 VRS80 48.1 20.2 28.9 4.3 . 25.9 26.0 96481 VRS80 6.9 33.7 3.7 96749 -44.8 45 .. 2 96781 96881 96935 -105.7 53.8 96996 VRS80? -50.3 26.9 97014 37.5 5.3.4 97072 -25.5 57.2 97180 -38.6 54.9 97560 90.6 66.2 . 97724 98223 VRS80 98327 VIZ - 39 -

STATION SONDE OB-FG, OOZ SD, OOZ FG-REF OB-FG, 12Z SD, 12Z FG-REF SD, MEAN/ E D NUMBER TYPE MEAN MEAN ooz MEAN MEAN 12Z STANDARD

98646 VRSI8 98836 VRSI8 BNTA DBBH VRS80 DRAY EREA MET 53.6 33.4 51.3 39.9 EREB MET EREC MET EREH MET 58.8 ERE! MET 34.9 31.0 27.2 43.6 ERES MET -33.8 31.9 64.2 ERET MET EREU MET ESGG MET FNMZ FNOR VRS80 9.3 18.9 -33.0 9.8 1.6 FNOU VRS80 9.3 15.3 -48.5 19.3 1.9 FNPH VRS80 -18.8 FNRS VRS80 20.1 -39.6 20.2 2.2 IBWQ JBOA VRS80 -3.8 15.1 13 -23.6 13.7 33 1.6 LADB2 VRS80 -17.5 18.7 4.6 16.0 1.9 LBHA LBHB ONDA VRS80 -52.2 6.8 61 -37.2 46 0.8 OVYA VRS80 3.6 26.4 2.9 C7C MET -0.8 41.6 16.0 35.2 C7L VRS80 9.6 12.9 -I -15.8 24 1.6 C7M VRS80 -21.1 17.7 -18.6 12.8 1.7 PWMG PWSA UAAX MET us;-;z MET UHQS MET UMAY MET 70.7 UMFW MET 1.0 25.9 22.7 35.4 UPt:J MET UUPB MET -24.6 -1.9 27.4 UVMJ MET UWEC MET UZGH MET VPHA RS80 -27.8 16.0 37 -24.2 17.2 33 1.8 VSBV3 VRS80 -36.4 45 -24.5 12.4 33 1.4 ZCSK VRS80 -11.1 16.4 17.5 12.6 1.6 - 40 -

Table 3

Distribution of values of (SD, MEAN/SI ANDARD) for five radiosonde types.

SD, MEAN/STANDARD

RADIOSONDE 0-1 1-2 2-3 3-4 ;;;::4 TYPE

VRS80* 1 (1) 56 (30) 56 (17) 23 (3) 10 (1)

VIZ 0 15 77 22 23

RS3 0 10 1 0 0

GM60 1 4 0 0 0

IMMK3 0 1 2 12 15

* Numbers in brackets are for VRS80 + Microcora or Digicora ground equipment - 41 -

Appendix to the report 'Compatibility of Radiosonde Geopotential Measurements -1988'

DIRECTORY OF UPPER-AIR STATIONS- APRIL 1989

PART A- UPPER-AIR STATIONS AND RADIOSONDE TYPES

PART B- GROUND STATION AND WINDFINDING EQUIPMENT

UK Meteorological Office

A- UPPER-AIR STATIONS AND RADIOSONDE TYPES

I. The station list is largely based upon the WMO Publication Number 9 Volume A (August 1987 edition) supplemented by information: from other sources. The information on radiosonde types and radiation corrections is based upon the WMO upper-air catalogue compiled by Mr F. Finger, information supplied by Vaisala OY and private sources.

2. The accuracy of the information cannot of course be guaranteed. Blanks in the list indicate not applicable or missing information. A question mark following an entry indicates doubt concerning the accuracy of the data. - 42 -

3. Only the major types of radiosonde have been distinguished. Below is a list of all the types appearing in the catalogue along with the number of radiosonde stations world-wide believed to be using each type.

CODE SONDE TYPE/MANUFACTURE NUMBER

·BLANK UNKNOWN 66 ASTOR PHI LIPS 7 ELIN I G78 GRAW 78 I G78? I GM60 GRAW M60 6 IMMK3 INDIAN MET SERVICE 36 MEISEI 22 MES MESURAL 19 MES73A 2 MES? 1 MET METEORIT 35 MET221 34 MET2-I 133 MET2-2 5 METLBR METEOLABOR 1 MICRO BEUKERS MICROSONDE 3 MSS SPACE DATA CORP. 14 RKZ-5 METEORIT 1 RS3 UK MET OFFICE MK 3 13 SANG SANGAMO 34 SDC SPACE DATA CORP. I4 SHANG SHANGHAI RADIO 90 SPRGER SPRENGER 8 VINOH VINOHRADY 2 VIZ V.I.Z. I74 VIZ? 1 VRSI8 V AISALA RS I 8 21 VRSI8? 1 VRS21 VAISALA RS21 5 VRS80 V AISAL'A RS80 223 VRS80? 1

4. Not all the upper-air stations in the list maintain a regular observing programme.

5. Where radiation corrections are applied to the radiosonde temperature measurements and the type of correction is known, an entry is made in the column titled RADN CORRN. V82 and V86 refer to the two main correction schemes applied to measurements from Vaisala RS80 radiosondes named '1982' and '1986' respectively by Vaisala.

6. If two types of radiosonde are in use at a station, the alternative type is listed in the column titled ALT SONDE.

7. For land stations, COUNTRY refers to the physical location of the station; a different nation may be responsible for the administration/ operation of the station. For ships, however, COUNTRY refers to the nation responsible for the operation of the upper-air equipment rather than the registration or ownership of the vessel. - 43 -

UPPER AIR STATIONS AND RADIOSONDE TYPES January 1989

STATION LAT LONG STATION NAME COUNTRY SONDE RADN.. ALT. NUMBER (- = S) (-=W) CORRN SONDE - ----· 01001 70.93 -8.67 JAN MA YEN NORWAY VRS80 V86 01028 74.52 19.02 BJORNOYA NORWAY VRS80 V86 01152 67.25 14.40 BODO NORWAY VRS80 V86 01241 63.70 9.60 ORLAND NORWAY VRS80 V86 01384 60.20 11.10 OSLO/GARDERMOEN NORWAY VRS80 V86 01415 58.87 5.67 STA VANGER/SOLA NORWAY VRS80 V86 02185 65.55 22.13 LULEA/KALLAX SWEDEN VRS80 V86 02225 63.18 14.50 OSTERSUND/FROSON SWEDEN VRS80 V86 02365 62.53 17.45 SUNDSV ALL-HARNOSAND SWEDEN VRS80 V86 02465 59.35 17.95 STOCKHOLM/ BROMMA SWEDEN VRS80 V86 02527 57.67 12.30 GOTEBURG/LANDVETTER SWEDEN VRS80 V86 02544 58.52 14.53 KARLSBORG SWEDEN VRS80 V86 02591 57.65 18.35 VISBY AEROLOGISKA SWEDEN VRS80 V86 02836 67.37 26.65 SONDANKYLA FINLAND VRS80 V86 02935 62.40 25.67 JYVASKYLA FINLAND VRS80 V86 02963 60.82 23.50 JOKIOINEN FINLAND VRS80 V86 03005 60.13 -1.18 LERWICK UNITED KINGDOM RS3 RS3 03026 58.22 -6.32 STORNOWAY UNITED KINGDOM RS3 RS3 03170 56.43 -2.87 SHANWELL UNITED KINGDOM RS3 RS3 03213 54.32 -3.40 ESKMEALS UNITED KINGDOM RS3 RS3 03322 53.55 -2.92 AUGHTON UNITED KINGDOM RS3 RS3 03496 52.68 1.68 HEMS BY UNITED KINGDOM RS3 RS3 03502 52.13 -4.57 ABERPORTH UNITED KINGDOM RS3 RS3 03693 51.55 0.83 SHOEBUR YNESS UNITED KINGDOM RS3 RS3 03743 51.20 -1.80 LARK HILL UNITED KINGDOM RS3 RS3 03763 51.38 -0.78 BEAUFORT PARK UNITED KINGDOM RS3 RS3 03774 51.08 -0.22 CRAWLEY UNITED KINGDOM RS3 RS3 03808 50.22 -5.32 CAM BORNE UNITED KINGDOM RS3 RS3 03920 54.48 -6.10 LONG KESH UNITED KINGDOM RS3 RS3 03953 51.93 -10.25 VALENTIA EIRE VRS80 V86 04018 63.97 -22.60 KEFLAVIK VIZ 04202 76.52 -68.83 THULE AIRFORCE BASE MSS 04220 68.70 -52.75 EGEDESMINDE GREENLAND VRS80 V86 04270 61.18 -45.43 NARSSARSSUAQ GREENLAND VRS80 V82? 04320 76.77 -18.77 DANMARKSHA VN GREENLAND VRS80 V86 04339 70.48 -21.97 SCORESBYSUND GREENLAND VRS80 V82 04360 65.60 -37.63 ANGMAGSSALIK GREENLAND VRS80 V82 06011 62.02 -6.77 THORSHAVN DENMARK VRS80 '\ (FAROE ISL) 06030 57.10 9.87 ALBORG DENMARK VIZ 06181 55.77 12.52 KOBENHAVN DENMARK VRSBO V86 06260 52.10 5.18 DE BILT NETHERLANDS VRS80 V86 06447 50.80 4.35 UCCLE BELGIUM VIZ UCCLE GM60 06476 50.03 5.40 ST-HUBERT BELGIUM VRS80 V82 06496 50.47 6.18 ELSENBORN BELGIUM 06610 46.82 6.95 PAYERNE SWITZERLAND METLBR 07110 48.45 -4.42 BR EST FRANCE MES 07145 48.77 2.02 TRAP PES FRANCE MES 07180 48.68 6.22 NANCY/ESSEY FRANCE MES 07222 47.17 -1.60 NANTES FRANCE VRS80 MES 07481 45.73 5.08 LYON/SATOLAS FRANCE MES 07510 44.83 -0.70 BORDEAUX/ MERIGNAC FRANCE MES 07645 43.87 4.40 NIMES/ COURBESSAC FRANCE MES 07761 41.92 8.80 AJACCIO FRANCE MES 08001 43.37 -8.42 LACORUNA SPAIN VRS80 V82 08023 43.47 -3.82 SANTANDER SPAIN VRS80 V86 - 44 -

STATION LAT LONG STATION NAME COUNTRY SONDE RADN. ALT. NUMBER (-=S) (-=W) COR RN SONDE

08140 41.72 -4.85 VALLADOLID SPAIN VRS80 V82 08221 40.47 -3.58 MADRID SPAIN VRS80 V82 08302 39.60 2.70 PALMA SON BONET SPAIN VRS80 V82 08430 38.00 -1.17 MURCIA SPAIN VRS80 V82 08495 36.15 -5.33 GIBRALTAR GIBRALTAR GM60 GRAW 08508 38.73 -27.07 LAJES PORTUGAL VIZ (A CORES) 08522 32.63 -16.90 FUNCHAL PORTUGAL VIZ (MADEIRA) 08579 38.77 -9.05 LISBOA/GAGO COUTINHO PORTUGAL VRS80 V82 08594 16.73 -22.95 SAL CAPE VERDE ISLS VIZ 09184 54.10 13.38 GREIFSWALD GDR MET2-2 09393 52.22 14.12 LINDENBERG GDR MET2-2 09486 51.12 13.68 WAHNSDORF GDR MET 09548 50.55 0.37 MEININGEN GDR MET2-1 10035 54.53 9.55 SCHLESWIG FRG GM60 GRAW 10046 54.38 10.15 KIEL-KRONSHAGEN FRG SPRGER 10200 53.35 7.22 EMDEN-KOENIGSPOLDER FRG SPRGER 10238 52.82 9.93 BERGEN FRG SPRGER 10304 52.72 7.32 MEP PEN FRG SPRGER 10338 52.47 9.70 HANNOVER FRG GM60 GRAW 10384 52.47 13.40 BERLIN-TEMPELHOF FRG. VRS80 V86 10410 51.40 6.97 ESSEN FRG GM60 GRAW 10437 51.13 9.28 FRITZLAR-KASSELERW FRG SPRGER 10618 49.70 7.33 IDAR-OBERSTEIN FRG SPRGER 10739 48.83 9.20 STUTTGART FRG G78? G78 10771 . 49.43 11.90 GAERMERSDORF FRG SPRGER 10868 48.25 11.55 MUENCHEN FRG G78 G78 10921 47.98 8.90 NEUHAUSEN OB ECK FRG SPRGER 10962 47.80 11.02 HOHENPEISSENBERG FRG GM60 GRAW 11035 48.25 16.37 WIEN/HOHE WARTE AUSTRIA ELIN I 1520 50.00 14.45 PRAHA-LIBUS CZECHOSLOVAKIA VINOH 11952 49.03 20.32 POPRAD/GANOVCE CZECHOSLOVAKIA VINOH 12120 54.75 17.53 LEBA POLAND MET 12330 52.42 16.83 POZNAN POLAND MET 12374 52.40 20.97 LEGIONOWO POLAND MET 12425 51.13 16.98 WROCLAWI POLAND MET 12843 47.43 19.18 BUDAPEST/LORINC HUNGARY MET2-2 12982 46.25 20.10 SZEGED HUNGARY MET2-2 13130 45.82 16.03 ZAGREB/MAKSIMIR YUGOSLAVIA VIZ 13275 44.78 20.53 BEOGRAD YUGOSLAVIA VRSBO V86 15120 46.18 23.57 CLUJ-NAPOCA ROMANIA MET221 15420 44.50 26.13 BUCARESTI/ IMH ROMANIA MET221 15480 44.22 28.63 CONSTANTA ROMANIA MET221 15614 42.82 23.38 SOFIA (OBSERV.) BULGARIA MET2-2 15730 41.63 25.40 KURDJALI BULGARIA MET2-1 16044 46.03 13.18 UDINE/ CAMPOFORMIDO ITALY VRS80 V82 16080 45.43 9.28 MILANO / LINATE ITALY VRS80 V82 16144 44.65 11.38 S.PIETRO (BOLOGNA) ITALY VRS80 V82 16245 41.65 12.43 PRATICA DI MARE ITALY VRS80 V82 16320 40.65 17.95 BRINDISI ITALY VRS80 V82 16429 37.92 12.50 TRAPANI/BIRGI ITALY VRS80 V82 16560 39.25 9.05 CAGLIARI/ ELM AS ITALY VRS80 V82 16622 40.52 22.97 THESSALONIKI/ MIKRA GREECE MES 16716 37.90 23.73 A THENS(HELLINIKON) GREECE VRS21 VRS21 16754 35.33 25.18 HERAKLION GREECE VRS21 VRS21 17030 41.28 36.33 SAMSUN TURKEY 17062 40.97 29.08 1ST ANBUL/ GOZTEPE TURKEY VRS80 - 45 -

STATION LAT LONG STATION NAME COUNTRY SON DE RADN. ALT. NUMBER (-=S) (-=W) COR RN SONDE ·------·--- . - -- -. ·--·- 17130 39.95 32.88 ANKARA/ CENTRAL TURKEY VRS80 17220 38.43 27.17 IZMIR TURKEY VRS80 17240 37.75 30.55 ISPARTA TURKEY VRS80 17280 37.88 40.18 DIYARBAKIR TURKEY 17352 36.98 35.30 ADANA TURKEY 17607 35.15 33.40 ATHALASSA CYPRUS VIZ 20046 80.62 58.05 GMO IM.E.T.KRENKELJA USSR MET221 20069 79.50 76.98 OSTROV VIZE USSR MET2-I MET2-2 20107 78.07 14.22 BARENCBURG USSR MET221 20274 77.50 82.23 OSTROV UEDINENIJA USSR MET2-1 MET2-2 20292 77.72 104.28 GMO IM.E.K. FEDEROVA USSR MET2-I MET2-2 20353 76.95 68.58 MYS ZELANIJA USSR MET2-l MET2-2 20674 73.50 80.23 OSTROV DIKSON USSR MET2-I MET2-2 20744 72.38 52.73 MALYE KARMAKUL Y USSR MET2-I MET2-2 20891 71.98 102.47 HATANGA USSR MET221 21358 76.15 152.83 OSTROV ZOHOVA USSR MET2-I MET2-2 21432 76.00 137.90 OSTROV KOTEL'NYJ USSR MET2-I MET2-2 21504 74.67 112.93 OSTROV PREOBRAZENIJA USSR MET221 21647 73.18 143.93 MYSSALAUROVA USSR MET2-I MET2-2 21824 71.58 128.92 TIKSI USSR MET2-I MET2-2 21965 70.63 162.40 OSTROV CETYREH- USSR MET2-I MET2-2 21982 70.97 -178.53 OSTROV VRANGELJA USSR MET2-I MET2-2 22113 68.97 33.05 MURMANSK USSR MET2-I MET2-2 22217 67.13 32.43 KANDALAKSA USSR MET2-I MET2-2 22271 67.88 44.13 SOJNA USSR MET2-I MET2-2 22522 64.98 34.78 KEM'-PORT USSR MET221 22550 64.58 40.50 ARHANGEL'SK USSR MET221 22802 61.72 30.72 SORTOVALA USSR MET221 23022 69.77 61.68 AMDERMA USSR MET2-l MET2-2 23146 68.47 73.60 MYS KEMENNYJ USSR MET221 23205 67.65 53.02 NAR'JAN-MAR USSR MET221 23330 66.53 66.53 SALEHARD USSR MET2-l MET2-2 23418 65.12 57.10 PECORA USSR MET2-I MET2-2 23472 65.78 87.95 .TURUHANSK USSR MET2-1 MET2-2 23552 64.92 77.82 TARKO-SALE USSR MET2-I MET2-2 23804 61.67 50.85 SYKTYVKAR USSR MET2-I MET2-2 23884 61.60 90.00 BOR USSR MET2-I MET2-2 23921 60.68 60.43 I VD EL' USSR MET2-1 MET2-2 23933 60.97 69.07 HANTY-MANSIJSK USSR MET2-I MET2-2 23955 60.43 77.87 ALEKSANDROVSKOE USSR MET221 24125 68.50 112.43 OLENEN USSR MET2-I MET2-2 24266 67.55 133.38 VERHOJANSK USSR MET221 24343 66.77 123.40 ZIGANSK USSR MET2-1 MET2-2 24507 64.17 100,07 TURA USSR MET2-I MET2-2 24641 63.77 121.62 VILJUJSK USSR MET2-I MET2-2 24688 63.27 143.15 OJMJAKON USSR MET221 24817 61.27 108.02 ERBOGACEN USSR MET221 24908 60.33 102.27 VANAVARA USSR MET2-I MET2-2 24944 60.40 20,42 OLEKMINSK USSR MET2-I MET2-2 24959 62.08 129.75 JAKUTSK USSR MET2-I MET2-2 25123 68.80 161.28 CERSKIJ USSR MET221 25173 68.92 -179.48 MYS SMIDTA USSR MET2-1 MET2-2 25399 66.17 -169.83 MYS UELEN USSR MET221 25551 64.68 170,42 MARKOVO USSR MET2-I MET2-2 25563 64.78 177.57 ANADYR' USSR MET2-I MET2-2 25594 64.43 -173.23 BUHTA PROVIDENJA USSR MET221 25677 63.05 179.32 BERINGSKOVKAJA '\]SSR MET221 25703 62.92 152.42 SEJMCAN USSR MET2-I MET2-2 - 46 -

RADN. ALT. STATION LAT LONG STATION NAME COUNTRY SONDE CORRN SONDE NUMBER (- = S) (-=W)

25913 59.58 150.78 MAGADAN USSR MET2-I MET2-2 25954 60.35 166.00 KORF USSR MET221 26038 59.42 24.80 TALLIN USSR MET2-I MET2-2 26063 59.97 30.30 LENINGRAD/TOWN USSR MET2-I MET2-2 26258 57.83 28.35 PSKOV USSR MET2-I MET2-2 26298 57.90 34.05 BOLOGOE USSR MET221 26422 56,97 24.07 RIGA USSR MET2-I MET2-2 26629 54.88 23.88 KAUNAS USSR MET221 26702 54.70 2o.62 KALININGRAD USSR MET2-l MET2-2 26781 54.75 32.07 SMOLENSK USSR MET2-1 MET2-2 26850 53.87 27.53 MINSK USSR MET2-1 MET2-2 27037 59.28 39.87 VOLOGDA USSR MET221 27196 58.65 49.62 KIROV USSR MET2-l MET2-2 27553 56.22 43.82 GOR'KIJ USSR MET2-I MET2-2 27595 55.78 49.18 KAZAN USSR MET221 27612 55.75 37.57 MOSKVA USSR MET2-l MET2-2 27947 52.73 41.47 TAMBOV USSR MET2-I MET2-2 28275 58.15 68.18 TOBOL'SK USSR MET2-I MET2-2 28440 56.80 6o.63 SVERDLOVSK USSR MET2-I MET2-2 28698 54.93 73.40 OMSK USSR MET2-I MET2-2 28722 54.75 56.00 UFA USSR MET2-l MET2-2 28900 53.25 50.45 KUJBYSEV(BEZENCUK) USSR MET2-I MET2-2 28952 53.22 63.62 KUSTANAJ USSR MET2-I MET2-2 29231 58.30 82.90 KOLPASEV USSR MET2-I MET2-2 29282 58.42 97.40 BOGUCANY USSR MET2-I MET2-2 29574 56.00 92.88 KRASNOJARSK USSR MET2-I MET2-2 29612 55.37 78.40 BARABINSK USSR MET2-I MET2-2 29634 55.03 82.90 NOVOSIBIRSK USSR MET2-I MET2-2 29698 54.88 99.03 NIZNE-UDINSK USSR MET2-I MET2-2 30054 59.45 112.58 VITIM USSR MET221 30230 57.77 108.12 KIRENSK USSR MET2-I MET2-2 30554 54.47 113.58 BOGDARIN USSR MET2-I MET2-2 30635 53.43 108.98 UST'-BARGUZIN USSR MET2-I MET2-2 30673 53.73 119.78 MOGOCA USSR MET2-I MET2-2 30692 54.00 123.97 SKOVORODINO USSR MET2-l MET2-2 30710 52.27 104.35 IRKUTSK USSR MET2-l MET2-2 30758 52.02 113.33 CITA USSR MET2-I MET2-2 30935 50.37 108.75 KRASNYJ CIKOJ USSR MET2-I MET2-2 30965 50.38 116.52 BORZJA USSR MET2-I MET2-2 31004 58.62 125.37 ALDAN USSR MET2-I MET2-2 31088 59.37 143.20 OHOTSK USSR MET2-1 MET2-2 31168 56.45 138.15 AJAN USSR MET221 31300 53.75 127.23 ZEJA USSR MET221 31329 53.07 132.93 EKIMCAN USSR MET221 MET2-2 31369 53.15 140.70 NIKOLAEVSK-NA-AMURE USSR MET2-1 31510 50.27 127.50 BLAGOVESCENSK USSR MET2-I MET2-2 31707 47.73 130.97 EKATORINO-NIKOL'SKOE USSR MET2-l MET2-2 31735 48.52 135.17 HABAROVSK USSR MET2-I MET2-2 31873 45.87 133.73 DAL 'NERECENSK USSR MET2-I MET2-2 31909 45.03 136.67 TERNEJ USSR MET2-I MET2-2 MET2-2 31960 43.12 131.90 VLADIVOSTOK USSR MET2-1 MET2-2 32061 50.90 142.17 ALEKSANDROVSK-S'SKIJ USSR MET2-I 32150 46.92 142.73 JUZNO-SAHALINSK USSR MET2-I MET2-2 32165 44.02 145.82 JUZNO-KURIL'SK USSR MET2-I MET2-2 32186 46.20 150.50 URUP USSR MET2-I MET2-2 32217 50.00 155.38 MYS VASIL'EVA USSR MET2-I MET2-2 32389 56.32 160.83 KLJUCI USSR MET221 32540 52.97 158.75 PETROPAVLOSK-KA'SKIJ USSR MET2-I MET2-2 - 47 -

STATION LAT LONG STATION NAME COUNTRY SONDE RADN. ALT. NUMBER (- = S) (-=W) COR RN SONDE

32618 55.20 165.98 NIKOL'SKOE USSR MET221 33008 52.12 23.68 BR EST USSR MET2-I MET2-2 33041 52.45 31.00 GOMEL' USSR MET2-I MET2-2 33345 50.40 30.45 KIEV USSR MET2-I MET2-2 33393 49.82 23.95 L'VOV USSR MET2-I MET2-2 33631 48.63 22.27 UZGOROD USSR MET2-I MET2-2 33658 48.27 25.97 CERNOVCY USSR MET2-I MET2-2 33815 47.02 28.87 KISINEV USSR MET2-1 MET2-2 33837 46.48 30.63 ODESSA USSR MET2-I MET2-2 33946 45.02 33.98 SIMFEROPOL' USSR MET2-I MET2-2 34009 51.65 36.18 KURSK USSR MET221 34122 51.70 39.17 VORONEZ USSR MET2-I MET2-2 34172 51.57 46.03 SARATOV USSR MET2-I MET2-2 34300 49.93 36.28 HAR'KOV USSR MET2-I MET2-2 34560 48.68 44.35 VOLGOGRAD USSR MET221 34731 47.25 39.82 ROSTOV-NA-DONU USSR MET2-I MET2-2 34858 45.92 43.35 DIVNOE USSR MET2-I MET2-2 34880 46.27 48.03 ASTRAHAN' USSR MET2-I MET2-2 35108 51.25 51.40 URAL'SK USSR MET2-I MET2-2 35121 51.75 55.10 ORENBURG USSR MET2-1 MET2-2 35229 50.28 57.15 AKYJUBINSK USSR MET2-I MET2-2 35394 49.80 73.13 KARAGANDA USSR MET2-I MET2-2 35700 47.02 51.85 GUR'EV USSR MET2-I MET2-2 35746 46.78 61.67 ARAL'SKOE MORE USSR MET2-l MET2-2 35796 46.90 75.00 BALHAS USSR MET2-I MET2-2 36177 50.35 80.25 SEMIP ALATINSK USSR MET2-I MET2-2 36870 43.23 76.93 ALMA-ATA USSR MET2-I MET2-2 37018 44.10 39.07 TUAPSE USSR MET2-I MET2-2 37054 44.22 43.10 MINERAL'NYE VODY USSR MET2-I MET2-2 37260 42.87 41.13 SUHUMI USSR MET2-l MET2-2 37549 41.68 44.95 TBILISI USSR MET2-I MET2-2 37789 40.13 44.47 EREVAN USSR MET2-I MET2-2 37985 38.73 48.83 LENKORAN' USSR MET2-I MET2-2 38062 44.77 65.53 KZYL-ORDA USSR MET2-I MET2-2 38392 41.83 59.98 TASAUZ USSR MET221 38457 41.27 69.27 TASKENT USSR MET2-I MET2-2 38507 40.03 52.98 KRASNOVODSK USSR MET2-I MET2-2 38613 40.92 72.95 DZALAL-ABAD USSR MET2-I MET2-2 38687 39.08 63.60 CARDZOU USSR MET2-I MET2-2 38750 37.47 53.97 GASAN-KULI USSR MET2-I MET2-2 38836 38.58 68.78 DUSANBE USSR MET2-I MET2-2 38880 37.97 58.33 ASHABAD USSR MET2-I MET2-2 38954 37.50 71.50 HOROG USSR MET2-I MET2-2 39700 47.02 51.85 GUR'EV USSR MET2-I MET2-2 40007 36.12 37.22 ALEPPO SYRIA VRS80 V82 40080 33.42 36.52 DAMASCUS NEW.INT.A/P SYRIA VRS80 V82 40100 33.82 35.48 BEYROUTH(AEROPORT) LEBANON VRS80 40179 32.00 34.82 BETDAGAN ISRAEL VIZ 40265 32.37 36.27 MAFRAQ JORDAN VIZ 40373 28.33 46.12 HAFR AL-BA TIN SAUDI ARABIA VRS80 V86 40375 28.37 36.58 TABUK SAUDI ARABIA VRS80 V86 40394 27.43 41.68 HAIL SAUDI ARABIA VRS80 V86 40416 26.27 50.17 DHANRAN SAUDI ARABIA VRS80 V86 40430 24.55 39.72 MADINAH SAUDI ARABIA VRS80 V86 40437 24.93 46.72 KING KHALED INT. A/P SAUDI ARABIA VRS80 V86 40582 29.22 47.98 KUWAIT INT. AIRPORT KUWAIT VRS21 RS21 40650 33.23 44.23 BAGHDAD IRAQ VRS80 V82 40706 38.08 46.28 TABRIZ IRAN - 48 -

STATION LAT LONG STATION NAME COUNTRY SONDE RADN. ALT. NUMBER (- = S) (-= W) COR RN SONDE -··...-··-··-··-···--- 40745 36.27 59.63 MASH HAD IRAN VRS80 40754 35.68 51.32 TEHRAN-MEHRABAD IRAN VRS80 V82 40766 34.32 47.12 BAKHTARAN IRAN VRSSO 40795 32.40 48.38 DEZFUL IRAN VIZ 40800 32.62 51.67 ESFAHAN IRAN VRS80 40809 32.87 59.20 BIRJAND IRAN 40841 30.25 56.97 KERMAN IRAN VRS80 40848 29.60 52.53 SHIRAZ IRAN VRS80 40875 27.22 56.37 BANDAR ABBAS IRAN VRS80 V82 40938 34.22 62.22 HERAT AFGHANISTAN 40948 34.55 69.22 KABUL AIRPORT AFGHANISTAN 40990 31.50 65.85 KANDAHAR AIRPORT AFGHANISTAN 41024 21.67 39.15 JEDDAH (KAA INT.A/P) SAUDI ARABIA VRS80 V86 41062 20.47 45.62 SULAYEL SAUDI ARABIA VRS80 V86 41114 18.30 42.80 KHAMIS MUSHAIT SAUDI ARABIA VRS80 V86 41140 16.90 42.58 GIZAN SAUDI ARABIA VRS80 V86 41170 25.25 51.57 DOHA INT. AIRPORT QATAR VRS80 V82 41217 24.43 54.65 ABU DHABI INT. A/P UNITED ARAB EMIRATES 41256 23.58 58.28 SEEB INT. AIRPORT OMAN VRS80 V82 41316 17.03 54.08 SALALAH OMAN VIZ 41344 15.52 44.18 SANA'A YEMEN VRSI8 41360 14.75 42.98 HODEIDAH YEMEN VRS18 41390 13.68 44.13 TAIZ YEMEN VRSI8 41467 12.83 45.03 ADEN KHORMAKSAR DEMOCRATIC VRS80 V82 YEMEN 41530 34.02 71.58 PESHAWAR PAKISTAN VRS80 41594 32.05 72.67 SARGODHA PAKISTAN VIZ 41661 30.18 66.95 QUETIA(SHEIKH MANDA) PAKISTAN VRS80 41675 30.20 71.43 MULTAN PAKISTAN VRS80 41756 25.07 61.80 JIWANI PAKISTAN VIZ 41780 24.90 67.13 KARACHI AIRPORT PAKISTAN VIZ 41883 24.85 89.37 BOG RA BANGLADESH 41923 23.77 90.38 DHAKA BANGLADESH 41977 22.35 91.82 CHITTA GONG (AMBAGAN) BANGLADESH 42027 34.08 74.83 SRINAGAR INDIA IM MK3 42101 30.33 76.47 PATIALA INDIA IMMK3 42182 28.58 77.20 SAFDARJUNG INDIA IMMK3 42314 27.48 95.02 DIBRUGARH INDIA IM MK3 42339 26.30 73.02 JODHPUR INDIA IMMK3 42361 26.23 78.25 GWALIOR INDIA IMMK3 42369 26.75 80.88 LUCKNOW/AMAUSI INDIA IMMK3 42379 26.75 83.37 GORAKHPUR INDIA IMMK3 42397 26.67 88.37 SILIGURI INDIA IM MK3 42410 26.10 91.58 GAUHATI INDIA IMMK3 42492 25.60 85.10 PATNA INDIA IMMK3 42647 23.07 72.63 AHMADABAD INDIA IMMK3 42667 23.28 77.35 BHOPAL/BAIRAGARH INDIA IM MK3 42700 23.43 85.40 RAN CHI INDIA IMMK3 42724 23.88 91.25 AGARTALA INDIA IM MK3 42779 22.77 81.90 PENDRA INDIA IMMK3 42809 22.65 88.45 CALCUTTA/DUM DUM INDIA IMMK3 42867 21.10 79.05 NAGPURSONEGAON INDIA IMMK3 42971 20.25 85.83 · BHUBANESW AR INDIA IMMK3 43003 19.12 72.85 BOMBAY/SANTACRUZ INDIA IMMK3 43014 19.85 75.40 AURANGABAD CHIK AERO INDIA IMMK3 43041 19.08 82.03 JAGDALPUR INDIA IM MK3 43128 17.45 78.47 HYDERABAD AIRPORT INDIA IM MK3 - 49 -

STATION LAT LONG STATION NAME COUNTRY SONDE RADN. ALT. NUMBER (- = S) (-=W) COR RN SONDE

43150 17.70 83.30 CWC VISHAKH'WALTAIR INDIA IMMK3 43185 16.20 80.15 MACHILIPATNAM INDIA IM MK3 43192 15.48 73.82 GOA/PANJIM INDIA IM MK3 43279 13.00 80.18 MADRAS/ MINAMBAKKAM INDIA IM MK3 43285 12.95 74.83 PANAMBUR INDIA IM MK3 43295 12.97 77.58 BAN GALORE INDIA IM MK3 43311 11.10 72.70 AMINI DIVI INDIA IM MK3 43333 11.67 92.72 PORTBLAIR INDIA IM MK3 43346 10.92 79.83 KARAIKAL INDIA IMMK3 43353 9.93 76.27 COCHIN/WILLINGDON INDIA IMMK3 43369 8.30 73.00 MINI COY INDIA IM MK3 43371 8.48 76.95 TRIVANDRUM INDIA IMMK3 43466 6.90 79.87 COLOMBO SRI LANKA IMMK3 44212 49.80 92.08 ULAN-GOM MONGOLIA MET2-1 44231 49.63 100.17 MUREN MONGOLIA MET2-I 44259 48.10 114.50 CHOIBALSAN MONGOLIA MET2-I 44277 46.40 96.25 ALTAI MONGOLIA MET2-I 44288 46.27 102.78 ARBAIHER MONGOLIA MET2-I 44292 47.93 106.98 ULAN-BATOR MONGOLIA MET2-I 44354 44.90 110.12 SAINSHAND MONGOLIA MET2-I 44373 43.58 104.42 DALANZADGAD MONGOLIA MET2-I 44454 27.70 85.40 KATMANDU AIRPORT NEPAL 45004 22.32 114.17 KING'S PARK HONG KONG VRS80 V82 47041 39.93 127.55 HAMHEUNG N. KOREA 47058 39.03 125.78 PYONGYANG N. KOREA 47122 37.10 127.03 OSAN AB S. KOREA MICRO 47138 36.03 129.38 PO HANG S. KOREA VIZ 47158 35.12 126.82 KWANGJU AB S. KOREA MICRO 47185 33.28 126.17 CHEJU UPPER/ RADAR KOREA 47401 45.42 141.68 WAKKANAI JAPAN MEISEI 47412 43.05 141.33 SAPPORO JAPAN MEISEI 47420 43.33 145.58 NEMURO JAPAN MEISEI 47580 40.68 141.38 MISAWA JAPAN MEISEI 47582 39.72 140.10 AKITA JAPAN MEISEI 47590 38.27 140.90 SEND AI JAPAN MEISEI 47600 37.38 136.90 WAJIMA JAPAN MEISEI 47646 36.05 140.13 TATENO JAPAN MEISEI 47678 33.12 139.78 HACHIJOJIMA/ OMURE JAPAN MEISEI 47681 34.73 137.67 HAMAMATSU AB JAPAN MEISEI 47744 35.43 133.35 YONAGO JAPAN MEISEI 47778 33.45 135.77 SHIONOMISAKI JAPAN MEISEI 47807 33.58 130.38 FUKUOKA JAPAN MEISEI 47827 31.63 130.58 KAGOSHIMA/YOSHINO JAPAN MEISEI 47881 34.13 134.60 TOKUSHIMA AB JAPAN MEISEI · 47909 28.38 129.55 NAZE/FUNCHATOGE JAPAN MEISEI 47918 24.33 124.17 ISHIGAKIJIMA JAPAN MEISEI 47936 26.20 127.67 NAHA/KAGAMIZU JAPAN MEISEI 47945 25.83 131.23 MINAMIDAITOJIMA JAPAN MEISEI 47971 27.08 142.18 CHICHIJIMA JAPAN M EIS El 47991 24.30 153.97 MINAMITORISHIMA JAPAN MEISEI 48008 25.37 97.40 MYITKYINA BURMA 48053 20.83 95.83 MEIKTILA BURMA 48062 20.13 92.88 AKYAB BURMA VRSI8 RSI8 48097 16.77 96.17 RANGOON BURMA ASTOR 48108 14.10 98.22 TAVOY BURMA ASTOR 48327 18.78 98.98 CHIANG MAl THAILAND MICRO 48407 15.25 104.87 UBON RATCHATHANI THAILAND VIZ 48455 13.73 100.50 BANGKOK THAILAND VIZ VRS80 - 50 -

STATION LAT LONG STATION NAME COUNTRY SONDE RADN. ALT. NUMBER (-:::: S) (-=W) CORRN SONDE

48568 7.20 100.60 SONGKHLA THAILAND VIZ 48601 5.30 100.27 PENANG/BAYAN LEPAS MALAYSIA VRS80 48615 6.17 102.28 KOTA BHARU MALAYSIA VRS8 48648 3.10 101.65 KUALA LUMPUR MALAYSIA AS TOR 48657 3.78 103.22 KUANTAN MALAYSIA AS TOR 48698 1.37 103.98 SINGAPORE/CHANGI A/P SINGAPORE VRS80 V82 48820 21.02 105.80 HANOI VIETNAM 48855 16.03 108.18 DA NANG VIETNAM 48900 10.82 106.67 HO CHI MIN VILLE VIETNAM 50527 49.22 119.75 HAILAR CHINA SHANG 50557 49.17 125.22 NENJIANG CHINA SHANG 50774 47.72 128.90 YICHUN CHINA SHANG 50953 45.68 126.62 HARBIN CHINA SHANG 51076 47.73 88.08 ALTAY CHINA SHANG 51431 43.95 81.33 YINING CHINA SHANG 51463 43.90 87.47 URUMQI CHINA SHANG 51644 41.72 82.95 KUQA CHINA SHANG 51709 39.47 75.98 KASHI CHINA SHANG 51777 39.03 88.17 RUOQIANG CHINA SHANG 51828 37.13 79.93 HOTAN CHINA SHANG 51848 37.93 83.65 ANDIR CHINA SHANG 52203 42.82 93.52 HAM! CHINA SHANG 52267 41.98 101.07 EJIN QI CHINA SHANG 52323 41.63 96.88 MAZONG SHAN CHINA SHANG 52418 40.13 94.78 DUNHUANG CHINA SHANG 52533 39.77 98.52 JIUQUAN CHINA SHANG 52681 }8_:?2______!_Q3_:_~~-----~!~QI~------______5_!:!~~-----·--- _____S_!:!~G 52818 36.20 94.63 GOLMUD CHINA SHANG 52836 36.33 98.03 DULAN CHINA SHANG 52866 36.75 101.60 XINING CHINA SHANG 52889 36.05 103.88 LANZHOU CHINA SHANG 53068 43.65 112.00 ERENHOT CHINA SHANG 53463 40.82 111.68 HUHHOT CHINA SHANG 53513 40.77 107.40 LINHE CHINA SHANG 53614 38.48 106.22 YINCHUAN CHINA SHANG 53772 37.78 112.55 TAIYUAN CHINA SHANG 53845 36.60 109.50 YAN AN CHINA SHANG 53915 35.55 106.67 PINGLIANG CHINA SHANG 54102 43.95 116.07 XILIN HOT CHINA SHANG 54135 43.60 122.27 TONGLIAO CHINA SHANG 54161 43.90 125.22 CHANGCHUN CHINA SHANG . 54218 42.27 118.97 CHIFENG CHINA SHANG 54292 42.88 129.47 YANJI CHINA SHANG 54337 41.13 121.12 JINZHOU CHINA SHANG 54342 41.82 123.55 SHENYANG CHINA SHANG 54374 41.72 126.92 LINJIANG CHINA SHANG 54497 40.05 124.33 DANDONG CHINA SHANG 54511 39.80 116.47 BEIJING CHINA SHANG 54662 38.90 121.63 DALIAN CHINA SHANG 54823 36.68 116.98 JINAN CHINA SHANG 54857 36.07 120.33 QINGDAO CHINA SHANG 55299 31.48 92.05 NAGQU CHINA SHANG 55591 29.70 91.13 LHASA CHINA SHANG 56029 33.10 96.75 YUSHU CHINA SHANG 56080 34.92 103.07 HEZUO CHINA SHANG 56137 31.18 96.98 QAMDO CHINA SHANG 56146 31.63 99.98 GARZE CHINA SHANG 56294 30.67 104.02 CHENGDU CHINA SHANG - 51 -

STATION LAT LONG STATION NAME COUNTRY SONDE RADN. ALT. NUMBER (- = S) (-=W) CORRN SONDE

·--- .. ---·-·----· ·------···-----~------~--- 56571 27.88 102.30 XICHANG CHINA SHANG 56691 26.87 104.28 WEINING CHINA SHANG 56739 25.12 98.48 TENGCHONG CHINA · SHANG 56778 25.02 102.68 KUNMING CHINA SHANG 56964 22.67 101.40 SIMAO CHINA SHANG 56985 23.38 103.38 MENGZI CHINA SHANG 57036 34.30 108.93 XI'AN CHINA SHANG 57083 34.72 ll3.65 ZHENGZHOU CHINA SHANG 57127 33.07 107.03 HANZHONG CHINA SHANG 57178 33.03 ll2.58 NANYANG CHINA SHANG 57447 30.27 109.37 ENS HI CHINA SHANG 57461 30.70 111.08 YICHANG CHINA SHANG 57494 30.63 114.07 WUHAN CHINA SHANG 57516 29.52 106.48 CHONGQING CHINA SHANG 57679 28.20 113.07 CHANGSHA CHINA SHANG 57749 27.57 110.00 HUAIHUA CHINA SHANG 57816 26.58 106.72 GUIYANG CHINA SHANG 57957 25.33 110.30 GUILIN CHINA SHANG 57972 25.75 112.98 CHENZHOU CHINA SHANG 57993 25.83 114.83 GANZHOU CHINA SHANG 58027 34.28 117.30 XUZHOU CHINA SHANG 58150 33.77 120.25 SHEYANG CHINA SHANG 58203 32.93 115.83 FUYANG CHINA SHANG. 58238 32.00 118.80 NANJING CHINA SHANG 58367 31.17 121.43 SHANGHAI CHINA SHANG 58424 30.52 117.03 ANQING CHINA SHANG 58457 30.23 120.17 HANGZHOU CHINA SHANG 58606 28.67 115.97 NANCHANG CHINA SHANG 58633 28.97 118.87 QUXIAN CHINA SHANG 58666 28.45 121.88 DACHEN DAO CHINA SHANG 58725 27.33 117.47 SHAOWU CHINA SHANG 58847 26.08 ll9.28 FUZHOU CHINA SHANG 58968 25.03 121.52 TAIBEI TAIWAN 59134 24.45 118.07 XIAMEN CHINA SHANG 59211 23.92 106.53 BOSE CHINA SHANG 59265 23.48 111.30 WUZHOU CHINA SHANG 59287 23.13 113.32 GUANGZHOU CHINA SHANG 59316 23.40 116.68 SHANTOU CHINA SHANG 59431 22.82 108.35 NANNING CHINA SHANG 59553 22.70 120.80 DONGGANG CHINA SHANG 59758 20.03 110.35 HAIKOU CHINA SHANG 59981 16.83 112.33 XISHADAO CHINA SHANG 60020 28.47 -16.25 SANTA CRUZ TENERIFE CANARY ISL VRS80 V82 (SPAIN) 60155 33.57 -7.67 CASABLANCA MOROCCO MES 60191 32.37 -6.40 BENI-MELLAL MOROCCO MES 60250 30.38 -9.57 AGADIR MOROCCO MES 60390 36.72 3.25 DAR-EL-BEIDA ALGERIA VRS21 MES 60550 33.68 1.02 ELBAYADH ALGERIA RKZ-5 60566 32.38 3.82 GHARDAIA ALGERIA VRS18? 60571 31.62 -2.22 BECHAR ALGERIA VRS18 60680 22.78 5.52 T AMANRASSET ALGERIA VRS18 60715 36.83 10.23 TUNIS CARTHAGE TUNISIA VRS80 V82 60760 33.92 8.12 TOZEUR TUNISIA VRSI8 61052 13.48 2.17 NIAMEY-AERO NIGER VRS80 61202 20.20 0.98 TESSALIT MALI VRSI8 61223 16.72 -3.00 TOMBOUCTOU MALI VRS80 61291 12.53 -7.95 BAMAKO/SENOU MALI VRS80 - 52 -

STATION LAT LONG STATION NAME COUNTRY SONDE RADN. ALT. NUMBER (- = S) (-=W) CORRN SONDE

··-- --~·--~--~------~ 61415 20.93 -17.03 NOUADHIBOU MAURITANIA VRS80 61641 14.73 -17.50 DAKAR/YOFF SENEGAL VRS80 61901 -15.93 -5.67 STHELENA ST HELENA VRS80 V86 S.ATLANTIC 61902 -7.97 -14.40 WIDE AWAKE FIELD ASCENSION ISL MSS 61967 -7.35 72.48 DIEGO GARCIA DIEGO GARCIA VRS80 V86 61996 -37.80 77.53 MARTIN DE VIVIES ILE AMSTERDAM MES 61998 -49.35 70.25 PORT-AUX-FRANCAIS ILES KERGUELEN MES 62010 32.68 13.17 TRIPOLI INT AIRPORT LIBYA VRS80 V82 62019 31.20 16.58 SIRTE LIBYA VRS80 V82 62053 32.08 20.27 BENINA LIBYA VRS80 V82 62062 32.10 23.92 TOBRUK LIBYA VRS80 V82 62103 30.13 9.50 GHADAMES LIBYA VRS80 V82 62124 27.02 14.43 SEBHA LIBYA VRS80 V82 62271 24.22 23.30 KUFRA LIBYA VRS80 V82 62306 31.33 27.22 MERSA MATRUH EGYPT VIZ 62378 29.87 31.33 HELWAN EGYPT VIZ 62414 23.97 32.78 ASSWAN EGYPT VIZ 62641 19.58 37.22 PORT SUDAN SUDAN VRSI8 62650 19.17 30.48 DONGO LA SUDAN VRSIS 62721 15.60 32.55 KHARTOUM SUDAN VRS18 62760 13.62 25.33 EL FASHER SUDAN VRSIS 62840 9.55 31.65 MALAKAL SUDAN VRSI8 63021 15.28 38.92 ASMARA ETHIOPIA VRS80 V86 63450 8.98 38.80 ADDIS ABABA ETHIOPIA VRS80 V86 63478 5.10 44.58 GODE ETHIOPIA VRS80 V86 63723 -0.47 39.63 GARISSA KENYA MES73A 63741 -1.30 36.75 NAIROBI/ DAGORETTI KENYA MES73A VRSIS 63832 -5.08 32.83 TABORA AIRPORT TANZANIA VRS18 63894 -6.87 39.20 DARES SALAAM A/P TANZANIA VRS18 63985 -4.68 55.53 SEYCHELLESINT.A/P SEYCHELLES VRS80 64650 4.40 18.52 BANGUI CENTRAL VRS80 AFRICAN REP. 64700 12.13 15.03 NDJAMENA CHAD VRS80 64910 4.02 9.70 DOUALAR.S. CAMEROON VRS80 V86 65046 12.05 8.53 KANO NIGERIA 65123 9.62 6.53 M INN A NIGERIA VRS18 RSI8 65202 6.55 3.35 LAGOS/OSHODI NIGERIA VRS18 RSI8 65418 9.50 -0.85 TAMALE GHANA 65578 5.25 -3.93 ABIDJAN COTE D'IVOIRE VRS80 66160 -8.85 13.23 LUANDA ANGOLA 67083 -18.80 47.48 ANTANANARIVO/ IV ATO MADAGASCAR VRS80 67197 -25.03 46.95 FORT-DAUPHIN MADAGASCAR VRS80 67237 -15.10 39.28 NAMPULA MOZAMBIQUE VRS80 67341 -25.92 32.57 MAPUTO/MAVALANE MOZAMBIQUE VRS80 V86 67586 -13.78 33.77 KAMUZU INTL. AIRPORT MALAWI 67666 -15.42 28.32 LUSAKA CITY AIRPORT ZAMBIA VRS80 V86 67774 -17.83 31.02 HARARE (BELVEDERE) ZIMBABWE VRS80 67964 -20.15 28.62 BULAWAYO (GOETZ OBS) ZIMBABWE VRS80 68112 -22.48 17.47 J.G.STRIJDOM NAMIBIA VRS80 68174 -23.87 29.45 PIETERSBURG SOUTH AFRICA VRS80 68240 -24.22 25.92 SERETSE KHAMA A/ P BOTSWANA 68263 -25.92 28.22 PRETORIA (IRENE) SOUTH AFRICA VRS80 68351 -26.67 27.10 POTCHEFSTROOM U/A SOUTH AFRICA VRS80 68406 -28.57 16.53 ALEXANDER BAY SOUTH AFRICA VRS80 68424 -28.40 21.27 UPINGTON SOUTH AFRICA VRS80 68442 -29.10 26.30 BLOEMFONTEIN (JBMH) SOUTH AFRICA VRS80 68461 -28.25 28.33 BETHLEHEM AIRPORT SOUTH AFRICA VRS80 - 53 -

STATION LAT LONG STATION NAME COUNTRY SONDE RADN. ALT. NUMBER (- = S) (-=W) COR RN SONDE

68512 -29.67 17.88 SPRINGBOK SOUTH AFRICA VRS80 68588 -29.97 30.95 DURBAN (LOUIS BOTHA) SOUTH AFRICA VRS80 68816 -33.97 '18.60 CAPE TOWN (D.F.MALAN) SOUTH AFRICA VRS80 68842 -33.98 25.60 PORT ELIZABETH SOUTH AFRICA VRS80 68906 -40.35 -9.88 GOUGH ISLAND SOUTH AFRICA VRS80 68994 -46.88 37.87 MARION ISLAND SOUTH AFRICA VRS80 70026 71.30 -156.78 BARROW/ W.POST W.ROD' UNITED STATES VIZ 70086 70.13 -143.63 BARTER ISLAND UNITED STATES VIZ 70133 66.87 -162.63 KOTZEBUE, RALPH WIEN UNITED STATES VIZ 70200 64.50 -165.43 NOME UNITED STATES VIZ 70219 60.78 -161.80 BETHEL AIRPORT UNITED STATES SDC 70231 62.97 -155.62 MCGRATH UNITED STATES SDC 70261 64.82 -147.87 FAIRBANKS / INT. UNITED STATES SDC 70266 63.97 -145.70 FORT GREELY/ALLEN UNITED STATES VIZ 70273 61.17 -150.02 ANCHORAGE/ INT. UNITED STATES VIZ 70308 57.15 -170.22 ST. PAUL UNITED STATES VIZ 70316 55.20 -162.72 COLD BAY UNITED STATES VIZ 70326 58.68 -156.65 KING SALMON UNITED STATES VIZ 70350 57.75 -152.52 KODIAK UNITED STATES VIZ 70361 59.52 -139.67 YAKUTAT UNITED STATES VIZ 70398 55.03 -131.57 ANNETTE ISLAND UNITED STATES VIZ 70414 52.72 174.10 SHEMYAAFB UNITED STATES MSS 70454 51.88 -176.65 ADAK/NAVY UNITED STATES VIZ 71043 65.28 -126.80 NORM'WELLS UA, N.W.T. CANADA SANG 71051 71.98 -125.28 SACHS HARBOUR, N.W.T. CANADA SANG 71072 76.23 -119.33 MOULD BAY, N.W.T. CANADA SANG 71081 68.78 -81.25 HALL BEACH, N.W.T. CANADA SANG 71082 82.50 -62.33 ALERT, N.W.T. CANADA SANG 71109 50.68 -127.3 PORT HARDY, B. C. CANADA SANG 71115 50.23 -119.28 VERNON, B.C. CANADA SANG 71119 53.55 -114.10 EDMONTON STONY PLAIN CANADA SANG 71399 43.72 -65.25 SHELBURNE, N.S. CANADA SANG 71600 43.93 -60.02 SABLE ISLAND, N.S. CANADA SANG 71603 43.87 -66.10 YARMOUTH N.S. CANADA VRS80 71722 46.38 -75.97 MANIWAKI, QUE. CANADA SANG 71801 47.62 -52.75 ST.JOHN'S UA, NFLD CANADA SANG 71811 50.22 -66.27 SEPT-ILES UA, QUE. CANADA SANG 71815 48.53 -58.55 STEPHENVILLE, NFLD. CANADA SANG 71816 53.32 -60,42 GOOSE UA, NFLD. CANADA SANG 71823 53.70 -73.67 LA GRANDE IV, QUE. CANADA SANG 71836 51.27 -80.65 MOOSONEE CANADA SANG 71848 58.83 -89.87 BIG TROUT LAKE, ONT. CANADA SANG 71867 53.97 -101.10 THE PAS, MAN. CANADA SANG 71896 53.88 -122.67 PRINCE GEORGE, B.C. CANADA VRS80 V86 71906 58.10 -68.42 KUUJJAQUA UA, QUE. CANADA SANG 71907 58.45 -78.12 INUKJUAK, QUE. CANADA SANG 71909 63.75 -68.55 IQALUIT UA, N.W.T. CANADA SANG 71913 58.75 -94.07 CHURCHILL, MAN. CANADA SANG 71915 64.20 -83.37 CORAL HARBOUR, N.W.T. CANADA SANG 71917 80.00 -85.93 EUREKA, N.W.T. CANADA SANG 71924 74.72 -94.38 RESOLUTE, N.W.T. CANADA SANG 71925 69.10 -105.12 CAMBRIDGE BAY, N.W.T. CANADA SANG 71926 64.30 -96.00 BAKER LAKE UA, N.W.T. CANADA SANG 71934 60.02 -111.97 FORT SMITH UA, N.W.T. CANADA SANG 71945 58.83 -122.58 FORT NELSON UA, B. C. CANADA SANG 71957 68.30 -133.48 INUVIK UA, N.W.T. CANADA SANG 71964 60.72 -135.07 WHITEHORSE, Y.T. CANADA SANG 72201 24.55 -81.75 KEY WEST/INT., FL. UNITED STATES VIZ - 54 -

STATION LAT LONG STATION NAME COUNTRY SON DE RADN. ALT. NUMBER (- = S) (-=W) COR RN SONDE

""- 72203 26.68 -80.12 WEST PALM BEACH/INT. UNITED STATES VIZ 72208 32.90 -80.03 CHARLESTON/MUN., SC. UNITED STATES VIZ 72209 31.88 -81.57 FT.STEWART, GA. UNITED STATES VIZ 72210 27.70 -82.38 TAMPA BAY AREA, FL. UNITED STATES VIZ 72213 31.25 -82.40 WAYCROSS/WARE CO., GA UNITED STATES VIZ 72220 29.73 -84.98 APALACHICOLA/MUN., FL UNITED STATES VIZ 72221 30.48 -86.52 VALP ARAISO / EG LIN AFB UNITED STATES MSS 72224 29.68 -85.37 CAPE SAN BLAS, FL. UNITED STATES VIZ 72225 32.33 -84.83 FORT BENNING, GA UNITED STATES VIZ 72229 32.90 -87.25 CENTREVILLE, AL. UNITED STATES VIZ 72233 30.33 -89.82 sqDEL UNITED STATES VIZ 72235 32.32 -90.08 JACKSON/ALLEN C.T. FD UNITED STATES VIZ 72239 31.03 -93.03 FORT POLK, LA. UNITED STATES VIZ 72240 30.12 -93.22 LAKE CHARLES/MUN., LA UNITED STATES VIZ 72247 32.35 -94.65 LONGVIEW, TX. UNITED STATES VIZ 72250 25.90 -97.43 BRO'WNSVILLE/INT., TX UNITED STATES VIZ 72255 28.85 -96.92 VICTORIA REGIONAL, TX UNITED STATES VIZ 72257 31.10 -97.33 FORT HOOD, TX. UNITED STATES VIZ 72260 32.22 -98.18 STEPHENVILLE C FIELD UNITED STATES VIZ 72261 29.37 -100.92 DEL RIO/INT., TX. UNITED STATES SDC 72265 31.95 -102.18 MIDLAND REG. AIR TERM UNITED STATES SDC 72269 32.38 -106.48 WHITE SANDS, NM. UNITED STATES · VIZ 72270 31.80 -106.40 EL PASO/INT., TX. UNITED STATES SDC 72274 32.12 -110.93 TUCSON/INT., AZ. UNITED STATES SDC 72291 33.25 -119.45 SAN NICOLAS IS./NF UNITED STATES VIZ 72293 32.85 -117.12 SAN DIEGO/MIRAMAR UNITED STATES VIZ 72304 35.27 -75.55 CAPE HATTERAS, NC. UNITED STATES VIZ 72311 33.95 -83.32 ATHENS/MUN., GA. UNITED STATES VIZ 72317 36.08 -79.95 GREENSBORO/G. HIGH PT UNITED STATES VIZ 72327 36.25 -86.57 NASHVILLE/OLD HICK'Y UNITED STATES VIZ 72340 34.83 -92.27 N. LITTLE ROCK M.A/P. UNITED STATES VIZ 72349 36.88 -93.90 MONETT, MO. UNITED STATES VIZ 72353 35.40 -97.60 OKLAHOMA CITY/W.R.W. UNITED STATES VIZ 72355 34.60 -98.40 FORT SILL, OK. UNITED STATES VIZ 72363 35.23 -101.70 AMARILLO/INTL., TX. UNITED STATES SDC 72365 35.05 -106.62 ALBUQUERQUE/INT., NM. UNITED STATES SDC 72374 35.02 -110.73 WINSLOW/MUN., AZ. UNITED STATES SDC 72381 34.92 -117.90 EDWARDS AFB, CA. UNITED STATES MSS 72387 36.60 -116.00 MERCURY /DESERT ROCK. UNITED STATES MSS 72393 34.75 -120.57 V ANDENBERG AFB, CA. UNITED STATES MSS 72402 37.85 -75.48 WALLOPS ISLAND, V A. UNITED STATES VIZ 72403 38.98 -77.47 STERLING, VA. UNITED STATES VIZ 72407 39.45 -74.57 ATLANTIC CITY, NJ. UNITED STATES VIZ 72424 37.90 -85.97 FT. KNOX, KY. UNITED STATES VIZ 72425 38.37 -82.55 HUNTINGTON/TRISTATE. UNITED STATES VIZ 72429 39.87 -84.12 SULPHUR GROVE, OH. UNITED STATES VIZ 72433 38.65 -88.97 SALEM, LECRONE, IL. UNITED STATES VIZ 72451 37.77 -99.97 DODGE CITY/ MUN., KS. UNITED STATES VIZ 72456 39.07 -95.63 TOPEKA/MUN., KS. UNITED STATES VIZ 72468 38.70 -104.77 FORT CARSON, CO. UNITED STATES VIZ 72469 39.75 -104.87 DENVER/STAPLETON INT UNITED STATES SDC 72476 39.12 -108.53 GRAND JN /WALKER FLD. UNITED STATES SDC 72486 39.28 -114.85 ELY/YELLAND, NV. UNITED STATES SDC 72493 37.73 -122.20 OAKLAND INT., CA. UNITED STATES VIZ 72518 42.75 -73.80 ALBANY CO., NY. UNITED STATES VIZ 72520 40.53 -80.23 PITTSBURGH/MOON TOWN UNITED STATES VIZ 72528 42.93 -78.73 GREATER BUFFALO INT. UNITED STATES VIZ 72532 40.67 -89.68 GREATER PEORIA, IL. UNITED STATES VIZ - 55 -

STATION LAT LONG STATION NAME COUNTRY SONDE RADN. ALT. NUMBER (- = S) (-=W) COR RN SON DE

72553 41.37 -96.02 OMAHA, NE. UNITED STATES VIZ 72562 4I.l3 -100.68 N. PLATTE/LEE BIRD, NE UNITED STATES VIZ 72572 40.77 -111.97 SALT LAKE CITY/ INTNL UNITED STATES SDC 72576 42.82 -108.73 LANDER/HUNT, WY. UNITED STATES VIZ 72583 40.90 -117.80 WINNEMUCCA/ MUN., NV. UNITED STATES VIZ 72597 42.37 -122.87 MEDFORD JACKSON CTY. UNITED STATES VIZ 72606 43.65 -70.32 PORTLAND/INT. JET PT. UNITED STATES VIZ 72637 42.97 -83.73 FLINT/BISHOP, MI. UNITED STATES VIZ 72645 44.58 -88.13 GREEN BAY/A. STRAUBEL UNITED STATES VIZ 72654 44.38 -98.22 HURON REGIONAL SD. UNITED STATES VIZ 72655 45.55 -94.07 ST. CLOUD/WHITNEY, MN. UNITED STATES VIZ 72662 44.05 -103.07 RAPID CITY/REG., SD. UNITED STATES VIZ 72681 43.57 -116.22 BOISE/MUN., ID. UNITED STATES VIZ 72694 44.92 -123.02 SALEM/MCNARY, OR. UNITED STATES VIZ 72712 46.87 -68.02 CARIBOU/MUN., ME. UNITED STATES VIZ 72734 46.47 -84.37 SAULT STE. MARIE, MI. UNITED STATES VIZ 72747 48.57 -93.38 FALLS INT. MN. UNITED STATES VIZ 72764 46.77 -100.75 BISMARCK/MUN., ND. UNITED STATES VIZ 72768 48.22 -106.62 GLASGOW/INT., MT, UNITED STATES VIZ 72775 47.48 -111.37 GREAT FALLS/INT., MT UNITED STATES VIZ 72785 47.63 -117.53 SPOKANE/INT., WA. UNITED STATES VIZ 72797 47.95 -124.55 QUILLA YUTE, WA. UNITED STATES VIZ 73455 39.10 -96.77 FORT RILEY, KS. UNITED STATES VIZ 74230 46.43 -105.87 MILES CITY, MT. UNITED STATES VIZ 74420 40.30 -109.98 ROOSEVELT, UT. UNITED STATES VIZ 74421 40.50 -107.52 CRAIG, CO. UNITED STATES VIZ 74494 41.67 -69.97 CHATHAM, MA. UNITED STATES VIZ 74500 39.00 -121.33 SHERIDAN, CA. UNITED STATES VIZ 74501 38.75 -120.52 FRESHPOND, CA. UNITED STATES VIZ 74504 37.50 -122.50 PILAR POINT AFS, CA. UNITED STATES MSS 74521 31.20 -107.82 DURANGO, CO. UNITED STATES VIZ 74606 34.65 -120.57 S.VANDENBERG AFB CA. UNITED STATES MSS 74611 35.28 -116.37 BICYCLE LAKE AAF, CA. UNITED STATES VIZ 74612 35.68 -117.68 CHINA LAKE, NAF, CA. UNITED STATES MSS 74630 33.82 -106.67 STALLION AAF, NM. UNITED STATES VIZ 74631 33.17 -106.48 WHITE SANDS SITE 32 UNITED STATES VIZ 74702 36.33 -119.95 LEMOORE, CA. UNITED STATES VIZ 74718 33.22 -115.87 SALTON SEA, CA. UNITED STATES VIZ 74731 32.22 -101.52 BIG SPRING, TX. UNITED STATES VIZ 74733 33.90 -106.40 NORTHRUP LAND. STRIP UNITED STATES VIZ 74734 32.63 -106.40 WHITE SANDS SITE 39 UNITED STATES VIZ 74794 28.30 -80.50 CAPE CANAVERAL, FL. UNITED STATES MSS 76151 29.17 -118.32 ISLA GUADALUPE, U.C. MEXICO VIZ 76225 28.63 -106.07 UNIV. DE CHIHUAHUA. MEXICO VIZ 76256 27.95 -110.80 EMPALME, SON. MEXICO VIZ 76394 - 25.87 -100.23 AEROP INT. MONTERREY. MEXICO VIZ 76458 23.18 -105.42 COLONIA JUAN CARRAS' MEXICO VIZ 76612 20.60 -103.30 GUADALAJARA, JAL. MEXICO VIZ 76644 20.95 -89.67 AEROP. INT. MERIDA MEXICO VIZ 76654 19.10 -104.10 MANZANILLO, COL. MEXICO VIZ 76679 19.43 -99.07 AEROP. INT. MEXICO, D.F MEXICO VIZ 76692 19.15 -96.12 HACIENDA YLANG YLANG MEXICO VIZ 76723 18.72 -110.95 ISLA SOCORRO, COL. MEXICO VIZ 78016 32.37 -64.68 N.A.S. KINDLEY. BERMUDA VIZ 78073 25.05 -77.47 NASSAU AIRPORT BAHAMAS VIZ 78325 23.17 -82.35 CASA BLANCA, HABANA. CUBA 78355 21.40 -77.92 CAMAGUEY, CAMEGUEY. CUBA 78367 19.90 -75.15 GUANTANAMO, ORIENTE. CUBA - 56 -

STATION LAT LONG STATION NAME COUNTRY SONDE RADN. ALT. NUMBER (- = S) (-= W) COR RN SONDE

78384 19.32 -81.35 O.R.A. GRAND CA YMAN. CA YMAN ISLANDS VIZ 78397 17.93 -76.78 KINGSTON/NOR' MAN'. JAMAICA VIZ 78486 18.47 -69.88 SANTO DOMINGO DOMINICAN VIZ REPUBLIC. 78526 18.43 -66.00 SAN JUAN/INT. PUERTO RICO VIZ 78583 17.53 -88.30 BELIZE/INT.AIRPORT. BELIZE VIZ 78641 14.58 -90.52 AERO' LA AURORA. GUATEMALA VIZ 78720 14.05 -87.22 TEGUCIGALPA HONDURAS VIZ 78762 9.98 -84.22 JUAN SANTAMARIA. COSTA RICA VIZ 78806 8.97 -79.60 HOWARDAFB. PANAMA MSS 78861 17.12 -61.78 COOLIDGE FIELD. ANTIGUA. VIZ 78866 18.05 -63.12 JULIANA AIRPORT. ST. MAARTEN. VIZ 78897 16.27 -61.53 LE RAIZET GUADELOUPE VIZ 78954 13.07 -59.48 GRANTLEY ADAMS BARBADOS VIZ? 78970 10.62 -61.35 PIARCO INT. AIRPORT TRINIDAD VIZ 78988 12.20 -68.97 HATO AIRPORT CURACAO VIZ 80222 4.70 -74.13 BOGOTA/ELDORADO COLOMBIA VIZ 80241 4.55 -70.92 GAVIOTAS COLOMBIA VRS18 RSI8 80337 1.57 -78.68 TUMACO{EL MIRA COLOMBIA VRS80 80398 -4.17 -69.90 LETICIA/VASQUEZ COBO COLOMBIA VRS80 80413 10.25 -67.65 MARACA Y-B.A. SUCRE VENEZUELA VRS80 V86 80447 7.85 . -72.45 SAN ANTONIO VENEZUELA VRS80 VIZ 80462 4.60 -61.12 S. ELENA DE UAIREN VENEZUELA VRS80 VIZ 80476 10.52 -71.65 LA CANADA (MARACAIBO) VENEZUELA VRS80 VIZ 81405 4.83 -52.37 CAYENNE/ROCHAMBEAU FRENCH GUIANA MES 82193 -1.38 -48.48 BELEM (AEROPORTO) BRAZIL 82280 -2.53 -44.28 SAO LUIZ BRAZIL VRS80 82332 -3.15 -59.98 MAN AUS (AEROPORTO) BRAZIL VRS80 82397 -3.73 -38.55 FORTALEZA BRAZIL VRS80 82400 -3.85 -32.42 FERNANDO DE NORONHA BRAZIL VRS80 82599 -5.92 -35.25 NATAL BRAZIL VRS80 82678 -6.77 -43.02 FLORIANO BRAZIL VRS80 82765 -7.33 -47.47 CAROLINA BRAZIL VRS80 82900 -8.05 -34.92 RECIFE (CURADO) BRAZIL VRS80 82983 -9.38 -40.48 PETROLINA BRAZIL VRS80 83208 -12.73 -60.13 VILHENA BRAZIL 83229 -13.02 -38.52 SALVADOR BRAZIL VRS80 83288 -13.27 -43.42 BOM JESUS DA LAPA BRAZIL VRSSO 83378 -15.87 -47.93 BRASILIA (AEROPORTO) BRAZIL VRS80 83498 -17.73 -39.25 CARAVELAS BRAZIL VRS80 83612 -20.47 -54.67 CAMPO GRANDE (A/P) BRAZIL VRS80 83650 -20.50 -29.32 TRINIDADE (ILHA) BRAZIL VRS80 V82 . 83746 -22.82 -43.25 GALEAO BRAZIL VRS80 83780 -23.62 -46.65 SAO PAULO (AEROPORTO) BRAZIL VRS80 83840 -25.52 -49.17 CURITIBA (AEROPORTO) BRAZIL VRS80 83971 -30.00 -51.18 PORTO ALEGRE (A/P) BRAZIL VRS80 84008 -0.90 -89.60 SAN CRISTOBAL GALAPAGOS ISL VRS18 84203 -2.15 -79.88 GUAYAQUIL/S BOLIVAR ECUADOR VIZ 84377 -3.75 -73.25 IQUITOS PERU VIZ 84628 --12.00 -77.12 LIMA-CALLAO/ AEROP. PERU VIZ 85201 -16.52 -68.18 LA PAZ/ALTO BOLIVIA VIZ 85442 -23.43 -70.43 ANTOFAGASTA CHILE VIZ 85469 -27.17 -109.43 ISLA DE PASCUA CHILE VIZ 85543 -32.78 -71.53 QUINTERO CHILE VIZ 85799 -41.47 -72.93 PUERTO MONTT CHILE VIZ 85934 -53.03 -70.85 PUNT A ARENAS CHILE VIZ 86218 -25.27 -57.63 AS UNCI ON/ AEROPUERTO PARAGUAY 87047 -24.85 -65.48 SALTAAERO ARGENTINA VRS80 - 57 -

STATION LAT LONG STATION NAME COUNTRY SONDE RADN. ALT. NUMBER (-=S) (-=W) CORRN SON DE

87155 -27.45 -59.05 RESISTENCIA AERO ARGENTINA VRS80 87344 -31.32 -64.22 CORDOBA AERO ARGENTINA VRS80 87418 -32.83 -68.78 MENDOZA AERO ARGENTINA VRS80 87576 -34.83 -58.53 EZEIZAAERO ARGENTINA VRS80 87623 -36.57 -64.27 SANTA ROSA AERO ARGENTINA VRS80 87715 -38.95 -68.13 NEUQUEN AERO ARGENTINA VRS80 87748 -38.73 -62.17 COMANDANTE ESPORA BA ARGENTINA VRS21 87860 -45.78 -67.50 COMODORO RIV ADA VIA ARGENTINA VRS80 88889 -51.82 -58.45 MOUNT PLEASANT FALKLAND VRS80 V82 ISLANDS 88968 -60.75 -44.72 ISLAS ORCADAS D.N 89001 -70.30 -2.35 S.A.N.A.E. STATION ANTARCTICA VRS80 89002 -70.62 -8.37 GEORG VON NEUMA YER ANTARCTICA GM60 89009 -90.00 0.00 AMUNDSEN-SCOTT ANTARCTICA VIZ 89022 -75.50 -26.65 HALLEYBAY ANTARCTICA VRS80 V86 89050 -62.20 -58.93 BELLINGSHAUSEN ANTARCTICA MET 89055 -64.23 -56.72 VICECOMODORO ANTARCTICA VRS80 89056 -62.25 -58.93 PDTE. EDUARDO FREI ANTARCTICA 89512 -70.77 11.83 NOVOLAZAREVSKAJA ANTARCTICA MET 89532 -69.00 39.58 SYOWA ANTARCTICA MEISEI 89542 -67.67 45.85 MOLODEZNAJA ANTARCTICA MET 89564 -67.60 62.87 MAWSON ANTARCTICA 89571 -68.58. 77.97 DAVIS ANTARCTICA VRS80 89592 -66.55 93.02 MIRNYJ ANTARCTICA MET 89606 -78.45 106.87 ANTARCTICA MET 896II -66.27 110.53 CASEY ANTARCTICA VRS80 V86 89642 -66.67 140.02 DUMONT D'URVILLE ANTARCTICA 89657 -69.50 159.38 LENING RADSKAJ A ANTARCTICA 89664 -77.85 166.67 MCMURDO ANTARCTICA VIZ 91066 28.22 -177.37 MIDWAY ISLAND MIDWAY ISL VIZ PACIFIC 91165 21.98 -159.35 LIHUE KAUAI, HAWAII VIZ 91217 13.55 144.83 GUAM MARIANA ISL, VIZ PACIFIC 91245 19.28 166.65 WAKE ISLAND AIRFIELD WAKE ISLAND VIZ PACIFIC 91275 16.73 -169.52 JOHNSTON ISLAND JOHNSTON ISL VIZ PACIFIC 91285 19.72 -155.07 HILO GEN. LYMAN HAWAII VIZ 91334 7.47 151.85 TRUK CAROLINE ISL VIZ PACIFIC 91348 6.97 158.22 PO NAPE CAROLINE ISL VIZ PACIFIC 91366 8.73 167.73 KWAJELEIN/BUCHOLZ MARSHALLIS MSS PACIFIC 91376 7.08 171.38 MAJURO MARSHALLIS VIZ PACIFIC 91408 7.33 134.48 KOROR PALAU ISL VIZ PACIFIC 91413 9.48 138.08 YAP CAROLINE IS VIZ PACIFIC 91517 -9.42 159.97 HONIARA SOLOMONISL PACIFIC 91557 -17.70 168.30 BAUERFIELD (EFATE) VANUATU VRS80 V82 PACIFIC 91592 -22.28 166.45 NOUMEA NLLE-CALEDONIE MES 91610 1.35 172.92 TARAWA KIRIBATI PACIFIC VIZ 91643 -8.52 179.22 FUNAFUTI TUVALU PACIFIC VIZ - 58 -

STATION LAT LONG STATION NAME COUNTRY SONDE RADN. ALT. NUMBER (- = S) (-= W) COR RN SONDE

91680 -17.75 177.45 NAND! FIJI PACIFIC ASTOR 91765 -14.33 170.72 PAGO PAGO INT. A/P SAMOA PACIFIC 91801 -9.00 -158.05 PENRHYN COOK ISL PACIFIC VIZ 91843 -21.20 -159.82 RAROTONGA· COOK ISL PACIFIC VIZ 91925 -9.80 -139.03 ATUONA MARQUESAS ISL FRENCH MES POLYNESIA 91938 -17.55 -149.62 TAHITI-FAAA FRENCH MES POLYNESIA 91943 -14.48 -145.03 TAKAROA FRENCH MES POLYNESIA 91944 -18.07 -140.95 HAO (TUAMOTU ISL) FRENCH MES POLYNESIA 91948 -23.13 -134.97 RIKITEA (TUAMOTU IS) FRENCH MES? POLYNESIA 91958 -27.62 -144.33 RAPA (AUSTRAL ISL) FRENCH POLYNESIA 93012 -37.13 173.27 KAITAIA NEW ZEALAND VIZ 93417 -40.90 174.98 PARAPARAUMU NEW ZEALAND VRS80 93844 -46.42 168.33 INVERCARGILL A/P NEW ZEALAND VIZ 93944 -52.55 169.15 CAMPBELL ISLAND NEW ZEALAND VRS80 V86? 93986 -43.95 -176.57 CHATHAM ISLAND NEW ZEALAND VRS80 V86 93997 -29.25 -177.92 RAOUL ISLAND NEW ZEALAND 94120 -12.40 130.87 DARWIN AIRPORT AUSTRALIA VRS80 V86 94150 -12.27 136.82 GOVE AIRPORT AUSTRALIA VRS80 V86 94203 -17.95 122.22 BROOME AIRPORT AUSTRALIA VRS80 V86 94294 -19.25 146.75 TOWNSVILLE AIRPORT AUSTRALIA VRS80 V86 94299 -16.30 149.98 WILLIS ISLAND AUSTRALIA VRS80 V86 94300 -24.88 113.67 CANARVON AIRPORT AUSTRALIA VRS80 V86 94312 -20.37 118.62 PORT HEDLAND AIRPORT AUSTRALIA VRS80 V86 94326 -23.80 133.90 ALICE SPRINGS A/P AUSTRALIA VRS80 V86 94332 -20.65 139.48 MT ISA AIRPORT AUSTRALIA VRS80 V&6 94380 -23.85 151.27 GLADSTONE AUSTRALIA VRS80 V86 94461 -25.03 128.30 GILES AUSTRALIA VRS80 V86 94510 -26.42 146.27 CHARLEVILLE AIRPORT AUSTRALIA VRS80 V86 94527 -29.47 149.85 MOREE AUSTRALIA VRS80 V86 94578 -27.43 153.08 BRISBANE AIRPORT AUSTRALIA VRS80 V86 94610 -31.93 115.95 PERTH AIRPORT AUSTRALIA VRS80 V86 94637 -30.77 121.45 KALGOORLIE AIRPORT AUSTRALIA VRS80 V86 94638 -33.82 121.88 ESPERANCE AUSTRALIA VRS80 V86 94659 -31.15 136.80 WOOMERA AIRPORT AUSTRALIA VRS80 V86 94672 -34.93 138.52 ADELAIDE AIRPORT AUSTRALIA VRS80 V86 94711 -31.48 145.82 CO BAR AUSTRALIA VRS80 V86 94750 -34.95 150.53 NOWRA AIR STATION AUSTRALIA VRS80 V86 94767 -33.95 151.18 SYDNEY AIRPORT AUSTRALIA VRS80 V86 94776 -32.78 151.82 WILLIAMTOWN AUSTRALIA VRS80 V86 94802 -34.95 117.80 ALBANY AIRPORT AUSTRALIA VRS80 V86 94821 -37.73 140.78 MT GAMBlER AIRPORT AUSTRALIA VRS80 V86 94865 -37.85 144.73 LAVERTON AERODROME AUSTRALIA VRS80 V86 94867 -37.68 144.95 MELBOURNE A/P T.A. AUSTRALIA VRS80 V86 94910 -35.15 147.45 WAGGA AIRPORT AUSTRALIA VRS80 V86 94975 -42.83 147.50 HOBART AIRPORT AUSTRALIA VRS80 V86 94995 -31.52 159.08 LORD HOWE ISLAND AUSTRALIA VRS80 V86 94996 -29.03 167.93 NORFOLK ISLAND A/P AUSTRALIA VRS80 V86 94998 -54.48 158.93 MACQUARIE ISLAND AUSTRALIA VRS80 V86 96035 3.57 98.68 MED AN/ POLONIA INDONESIA 96163 -0.88 100.35 PADANG/TABING INDONESIA 96237 -2.17 106.13 PANGKALPINANG INDONESIA 96315 4.93 114.93 .BRUNEI AIRPORT BRUNEI DARUSSALAM - 59 -

STATION LAT LONG STATION NAME COUNTRY SONDE RADN. ALT. NUMBER (- = S) (-= W) COR RN SON DE

96413 1.48 110.33 KUCHING MALAYSIA AS TOR 96441 3.20 113,03 BINTULU MALAYSIA AS TOR 96471 5.95 116.05 KOTA KINABALU MALAYSIA VRSSO 96481 4.27 117.88 TAWAU MALAYSIA VRSSO 96749 -6.12 106.65 JAKARTAISOEKARNOHATA INDONESIA 96781 -6.90 107.58 BANDUNGIHUSEIN INDONESIA 96881 -7.62 111.52 MAD! UN I ISW AHYUDI INDONESIA 96935 -7.37 112.77 SURABAYAIJUANDA INDONESIA 96996 -12.18 96.82 COCOS ISLANDS AlP COCOS ISLS VRS80? V86 PACIFIC 97014 1.53 124.92 MENADOIDR.RATULANGI INDONESIA 97072 -0.68 119.73 PALU I MUTIARA INDONESIA 97180 -5.07 119.55 UJUNG PANDANG INDONESIA 97560 -!.IS 136.12 BIAKIMOKMER INDONESIA 97724 -3.70 128.08 AMBONIPA TTIMURA INDONESIA 98223 18.18 120.53 LAONG PHILIPPINES VRSSO V82 98327 15.17 120.57 CLARKAB PHILIPPINES MSS 98646 10.30 123.97 MACTAN PHILIPPINES VRS18 RSI8 98836 6.90 122.07 ZAMBOANGA PHILIPPINES VRSI8 RSI8 BNTA XIANG YANG HONG 5 C7C 52.75 -35.50 USSR MET C7L 57.00. -20.00 CUMULUS UNITED KINGDOM VRSSO· V86 C7M 66.00 2.00 POLAR FRONT NORWAY VRS80 DBBH METEOR FRG VRS80 V86? DBFJ FRITHJOF FRG VRS80 V86 DBFM MEERKATZE FRG VRS80 V86 DBLK POLARSTERN FRG VRS80 V86 DRAY PLANET FRG DUTU KALANTIO EREA MUSSON USSR MET EREB VOLNA USSR MET EREC PRILIV USSR MET EREH PRIBOY USSR MET ERE I OKEAN USSR MET ERES VIKTOR BUGAEV USSR MET ERET GEORGY USHAKOV USSR MET EREU ERNST KRENKEL USSR MET ESGG VYACHESLA V FROLOV USSR MET FNMZ CO RIO LIS FRANCE FNOR FORT ROYAL FRANCE VRS80 FNOU FORT FLEUR D'EPEE FRANCE VRS80 FNPH' FORT DESAIX FRANCE VRS80 FNRS .FORT SAINT CHARLES FRANCE VRSSO GACA CUMULUS UNITED KINGDOM VRS80 V86 IBWQ FLAUVA ITALY JBOA CHOFUMARU JAPAN VRS80 V86 JCCX JAPAN VRS80 V86 JDWX JAPAN VRS80 V86 LADB2 SKAUGRAN CANADA VRS80 V86? LBHA NORDKAPP NORWAY LBHB SENJA NORWAY ONDA CANMAR EUROPE UNITED KINGDOM VRS80 V86 OVYA NUKAITTUK DENMARK VRS80 V86? PWMG MINAS GERAIS BRAZIL PWSA ALTE SALDADHA BRAZIL UAAX A.I. VOEKOV USSR MET UBNZ AKADEMIK SHULIEKIN USSR MET UHQS AKADEMIK KOROLEV USSR MET - 60 -·

STATION LAT LONG STATION NAME COUNTRY SONDE RADN. ALT. NUMBER (- = S) (-=W) COR RN SONDE

- -- ~ UJFO PROFESSOR MULTANOV' USSR MET UMAY AKADEMIK SHIRSHOV USSR MET UMFW PROFESSOR ZUBOV USSR MET UPUI USSR MET UPUJ PROFESSOR VIZE USSR MET UUPB AKADEMIKSHOKALSKY USSR MET UUQR USSR MET UVMJ VSEVOLOD BEREZKIN USSR MET UWEC USSR MET UYAJ USSR MET UZGH PASSAT USSR MET UZNZ GLEB OUSPENSKII USSR MET VPHA OOCL CHALLENGE UNITED KINGDOM VRS80 V86 VSBV3 CANMAR AMBASSADOR FINLAND VRS80 V86 ZCSK SKEENA CANADA VRS80 V86? - 61 -

B- GROUND STATION AND WINDFINDING EQUIPMENT

I. This list is intended to supplement the station and radiosonde type list by providing more detailed information (where available) on the ground equipment at each station. Only the major items of ground equipment are listed which may be relevant to the nature and/ or quality of the processed data.

2. The information has been obtained from the same sources as Part A. The accuracy of the information cannot be guaranteed.

3. Note that some types of radiosonde do not have pressure sensors, and geopotential heights are derived from range and elevation measurements by either radar,. secondary radar or radiotheodolite. -· 62. -

GROUND STATION AND WINDFINDING EQUIPMENT LIST January 1989

STATION COUNTRY SONDE FREQ GROUND WIND FINDING WIND FINDING NUMBER MHz EQUIPMENT SYSTEM EQUIPMENT

------~-~---- 01001 NORWAY VRS80 403. MICROCORA OMEGA 01028 NORWAY VRS80 403 MICROCORA OMEGA 01152 NORWAY VRS80 403 PPI I+BEUKERS LORAN BEUKERS 01241 NORWAY VRS80 403 PPI I+BEUKERS LORAN BEUKERS 01384 NORWAY VRS80 403 PPII+BEUKERS OMEGA 01415 NORWAY VRS80 403 PPI I+BEUKERS LORAN BEUKERS 02185 SWEDEN VRS80 403 DIGICORA RADAR 02225 SWEDEN VRS80 403 DIGICORA RADAR 02365 SWEDEN VRS80 403 DIGICORA RADAR SELENIA 02465 SWEDEN VRS80 403 DIGICORA RADAR EEC-WFIOO 02527 SWEDEN VRS80 403 DIGICORA RADAR SELENIA 02544 SWEDEN VRS80 403 DIGICORA RADAR 02591 SWEDEN VRS80 403 ·mGICORA RADAR 02836 FINLAND VRSSO 403 MICROCORA OMEGA MICROCORA 02935 FINLAND VRS80 403 MICROCORA OMEGA MICROCORA 02963 FINLAND VRSSO 403 MICROCORA OMEGA MICROCORA 03005 UNITED KINGDOM RS3 30 FERRANTI RADAR COSSOR 3530 03026 UNITED KINGDOM RS3 30 FERRANTI RADAR COSSOR 353D 03170 UNITED KINGDOM RS3 30 FER RANT! RADAR COSSOR 3530 03213 UNITED KINGDOM RS3 30 FERRANTI RADAR COSSOR 3530 03322 UNITED KINGDOM RS3 30 FERRANTI RADAR COSSOR 353D 03496 UNITED KINGDOM RS3 30 FERRANTI RADAR COSSOR 353D 03502 UNITED KINGDOM RS3 30 FERRANTI RADAR COSSOR 353D 03693 UNITED KINGDOM RS3 30 FERRANTI RADAR COSSOR 353D 03743 UNITED KINGDOM RS3 30 FERRANTI RADAR COSSOR 353D 03763 UNITED KINGDOM RS3 30 FERRANTI RADAR COSSOR 353D 03774 UNITED KINGDOM RS3 30 FERRANTI RADAR COSSOR3530 03808 UNITED KINGDOM RS3 30 FERRANTI RADAR COSSOR 3530 03920 UNITED KINGDOM RS3 30 FERRANTI RADAR COSSOR 3530 03953 EIRE VRS80 403 DIGICORA RADAR COSSOR 353D 04018 ICELAND VIZ 1392 RADIOTHEODOLITE BEND! X 04202 GREENLAND MSS GMD5 RADIOTHEODOLITE GMD5 04220 GREENLAND VRS80 403 MICROCORA OMEGA MICROCORA 04270 GREENLAND VRS80 403 MODCORA OMEGA CORA 04320 GREENLAND VRS80 403 MICROCORA OMEGA MICROCORA 04339 GREENLAND VRS80 403 MODCORA OMEGA CORA 04360 GREENLAND VRS80 403 MODCORA OMEGA CORA 06011 DENMARK (FAROE VRS.80 403 MICROCORA OMEGA MICROCORA ISL) 06030 DENMARK VIZ GMDI RADIOTHEODOLITE GMDI 06181 DENMARK VRS80 403 MODCORA RADAR PLESSEY WF2 06260 NETHERLANDS VRS80 403 DIGICORA OMEGA MICROCORA 06447 BELGIUM VIZ 1206 RADAR EEC 06476 BELGIUM VRS80 403 MODCORA OMEGA CORA 06496 BELGIUM 06610 SWITZERLAND METLBR 400 RADAR 07110 FRANCE MES RADAR 07145 FRANCE MES RADAR 07180 FRANCE MES RADAR 07222 FRANCE VRS80 403 SARE OMEGA/ RADAR 07481 FRANCE MES RADAR 07510 FRANCE MES RADAR 07645 FRANCE MES RADAR 07761 FRANCE MES RADAR 08001 SPAIN VRS80 403 MICROCORA OMEGA MICROCORA 08023 SPAIN VRS80 403 MICROCORA OMEGA MICROCORA - 63 -

STATION COUNTRY SONDE FREQ GROUND WIND FINDING WIND FINDING NUMBER MHz EQUIPMENT SYSTEM EQUIPMENT

08140 SPAIN VRS80 403 MOD CORA OMEGA CORA 08221 SPAIN VRS80 403 MODCORA OMEGA CORA 08302 SPAIN VRS80 403 MOD CORA OMEGA CORA 08430 SPAIN VRS80 403 MICROCORA OMEGA MICROCORA 08495 GIBRALTAR GM60 28 UK MET OFFICE RADAR COSSOR 353D 08508 PORTUGAL VIZ 1392 RADIOTHEODOLITE (A CORES) 08522 PORTUGAL VIZ 1392 RADIOTHEODOLJTE (MADEIRA) 08579 PORTUGAL VRS80 403 MODCORA OMEGA CORA 08594 CAPE VERDE ISLS VIZ 1392 RADIOTHEODOLITE 09184 GDR MET2-2 METEORIT RADAR METEOR IT 09393 GDR MET2-2 METEORIT RADAR METEORIT 09486 GDR MET METEORIT RADAR METEORIT 09548 GDR MET2-I METEORIT RADAR METEOR IT 10035 FRG GM60 RADAR EEC 10046 FRG SPRGER 10200 FRG SPRGER 10238 FRG SPRGER 10304 FRG SPRGER 10338 FRG GM60 RADAR EEC 10384 FRG · VRS80 403 DIGICORA ·.OMEGA DIGICORA '10410 FRG GM60 RADAR EEC 10437 FRG SPRGER 10618 FRG SPRGER 10739 FRG G78? RADAR EEC 10771 FRG SPRGER 10868 FRG G78 RADAR EEC 10921 FRG SPRGER 10962 FRG GM60 RADAR EEC 11035 AUSTRIA ELIN RADAR PLESSEY 11520 CZECHOSLOVAKIA VINOH RADAR 11952 CZECHOSLOVAKIA VINOH RADAR 12120 POLAND MET RADAR/RAD.THEOD METEORIT 'METOX 12330 POLAND MET RADAR/ RAD.THEOD METEORIL METOX 12374 POLAND MET RADAR/RAD.THEOD METEORIT. METOX 12425 POLAND MET RADAR/RAD.THEOD METEORIT, METOX 12843 HUNGARY MET2-2 RADAR METEORIT 12982 HUNGARY MET2-2 RADAR METEORIT 13130 YUGOSLAVIA VIZ GMDIA RAD.THEOD/RADAR GMD/PLESSEY WF3 13275 YUGOSLAVIA VRS80 403 DIGICORA OMEGA DIGICORA 15120 ROMANIA MET221 RADAR METEOR IT 15420. ROMANIA MET221 RADAR METEOR IT 15480 ROMANIA MET22I RADAR METEORIT 15614 BULGARIA MET2-2 RADAR 15730 BULGARIA MET2-I 16044 ITALY VRSSO 403 MICROCORA OMEGA MICROCORA 16080 ITALY VRSSO 403 MICROCORA OMEGA MICROCORA 16144 ITALY VRS80 403 MICROCORA OMEGA MICROCORA 16245 ITALY VRS80 403 MICROCORA OMEGA MICROCORA 16320 ITALY VRS80 403 . MICROCORA OMEGA MICROCORA 16429 ITALY VRS80 403 MICROCORA OMEGA MICROCORA 16560 ITALY VRS80 403 MICROCORA OMEGA MICROCORA 16622 GREECE MES RADIOTHEODOLITE BENDIX 16716 GREECE VRS21 CORA OMEGA CORA 16754 · GREECE VRS21 CORA OMEGA CORA 17030 TURKEY 17062 TURKEY VRS80 1680 'PPI1 RADIOTHEODOLITE GMD - 64 -

STATION COUNTRY SONDE FREQ GROUND WIND FINDING WIND FINDING NUMBER MHz EQUIPMENT SYSTEM EQUIPMENT

-----· --- --~--~-.,---:;:-----·-··----y--- 17130 TURKEY VRS80 1680 PP II RADIOTHEODOLITE GMD 17220 TURKEY VRS80 1680 PP! I RADIOTHEODOLITE GMD 17240 TURKEY VRS80 1680 PP! I RADIOTHEODOLITE GMD 17280 TURKEY 17352 TURKEY 17607 CYPRUS VIZ 1395 RADAR PLESSEY 20046 USSR MET221 216 MALA CHIT RADIOTHEODOLITE MALA CHIT 20069 USSR MET2-I METEOR IT RADIOTHEODOLITE METEOR IT 20107 USSR MET221 216 MALACHIT RADIOTHEODOLITE MALACHIT 20274 USSR MET2-I METEORIT RADIOTHEODOLITE METEORIT 20292 USSR MET2-I METEORIT RADIOTHEODOLITE METEORIT 20353 USSR MET2-I METEOR IT RADIOTHEODOLITE METEORIT 20674 USSR MET2-1 METEOR IT RADIOTHEODOLITE METEORIT 20744 USSR MET2-I METEOR IT RADIOTHEODOLITE METEOR IT 20891 USSR MET221 216 MALACHIT RADIOTHEODOLITE MALA CHIT 21358 USSR MET2-I METEOR IT RADIOTHEODOLITE METEORIT 21432 USSR MET2-I METEOR IT RADIOTHEODOLITE METEORIT 21504 USSR MET221 216 MALA CHIT RADIOTHEObOLITE MALACHIT 21647 USSR MET2-I METEOR IT RADIOTHEODOLITE METEORIT 21824 USSR MET2-I METEORIT RADIOTHEODOLITE METEORlT 21965 USSR MET2-I METEORIT RADIOTHEQDOLITE METEORIT 21982 USSR MET2-I METEORIT . RADIOTHEODOLITE METEORIT· 22113 USSR MET2-I METEORIT RADIOTHEODOLITE METEORJT 22217 USSR MET2-I METEOR IT RADIOTHEODOLITE METEORIT 22271 USSR MET2-I METEORIT RADIOTHEODOLITE METEOR IT 22522 USSR MET221 MALA CHIT RADIOTHEODOLITE MALACHIT 22550 USSR MET221 . MALACHIT RADIOTHEODOLITE MALACHIT. 22802 USSR MET221 216 MALA CHIT RADIOTHEODOLITE MALACHIT· 23022 USSR MET2-1 METEOR IT RADIOTHEODOLITE METEORIT 23146 USSR MET221 216 MALACHIT RADIOTHEODOLITE MALA CHIT 23205 USSR MET221 216 MALACHIT RADIOTHEODOLITE MALA. CHIT 23330 USSR MET2-I METEOR IT RADIOTHE0DOLITE METEOR IT 23418 USSR MET2-1 METEOR IT RADIOTHEODOLITE METEOR IT 23472 USSR MET2-I METEOR IT RADIOTHEODOLITE METEOR IT 23552 USSR MET2-1 METEOR IT RADIOTHEODOLITE METEOR IT 23804 USSR MET2-I METEOR IT RADIOTHEODOLITE METEORIT 23884 USSR MET2"1 METEORIT RADIOTHEODOLITE METEORIT 23921 USSR MET2•1 METEOR IT RADIOTHEODOLITE METEORIT 23933 USSR MET2-1 METEORIT RADIOTHEODOLITE METEORIT 23955 USSR· MET221 216 MALA CHIT RADIOTHEODOLITE MALACHIT 24125 USSR MET2-I METEORIT RADIOTHEODOLITE METEOR IT 24266 USSR MET221 216 MALA CHIT RADIOTHEODOLITE MALACHIT 24343 USSR MET2-I METEORIT RADIOTHEODOLITE METEORIT 24507 USSR MET2-I METEORIT RADIOTHEODOLITE METEORJT. 24641 USSR MET2-l METEORIT RADIOTHEODOLITE METEORIT 24688 USSR MET221 216 MALA CHIT RADIOTHEODOLITE MALACHIT 24817 USSR MET221 216 MALACHIT RADIOTHEODOLITE MALA CHIT 24908 USSR MET2-l METEORIT RADIOTHEODOLITE METEORIT . 24944 USSR MET2-I METEORIT RADIOTHEODOLITE METEOR IT 24959 USSR MET2-I METEORIT RADIOTHEODOLITE METEORIT 25123 USSR MET221 . 216 MALA CHIT RADIOTHEODOLITE MALA CHIT 25173 USSR MET2-l METEORIT RADIOTHEODOLITE METEORIT 25399 USSR MET221 216 MALA CHIT RADIOTHEODOLITE MALA CHIT 25551 USSR MET2-I METEORIT RADIOTHEODOLITE METEORIT 25563 USSR MET2-I METEORIT RADIOTHEODOLITE METEOR IT 25594 USSR MET221 216 MALA CHIT RADIOTHEODOLITE MALA CHIT 25677 USSR MET221 216 MALACHIT RADIOTHEODOLITE MALA CHIT 25703 USSR MET2-l METEOR IT RADIOTHEODOLITE METEORtT - 65 -

STATION COUNTRY SONDE FREQ GROUND WIND FINDING WIND FINDING NUMBER MHz EQUIPMENT SYSTEM EQUIPMENT

25913 USSR MET2-I METEOR IT RADIOTHEODOLITE METEOR IT 25954 USSR MET221 216 METEOR IT RADIOTHEODOLITE METEOR IT 26038 USSR MET2-I METEOR IT RADIOTHEODOLITE METEOR IT 26063 USSR MET2-l METEOR IT RADIOTHEODOLITE METEOR IT 26258 USSR MET2-I METEORIT RADIOTHEODOLITE METEORIT 26298 USSR MET221 216 MALA CHIT RADIOTHEODOLITE MALA CHIT 26422 USSR MET2-1 METEORIT RADIOTHEODOLITE METEOR IT 26629 USSR MET221 216 MALA CHIT RADIOTHEODOLITE MALACHIT 26702 USSR MET2-1 METEORIT RADIOTHEODOLITE METEORIT 26781 USSR MET2-1 METEOR IT RADIOTHEODOLITE METEORIT 26850 USSR MET2-1 METEOR IT RADIOTHEODOL!TE METEORIT 27037 USSR MET221 216 MALA CHIT RADIOTHEODOLITE MALA CHIT 27196 USSR MET2-I METEOR IT RADIOTHEODOLITE METEOR IT 27553 USSR MET2-1 METEORIT RADIOTHEODOLITE METEOR IT 27595 USSR MET221 216 MALA CHIT RADIOTHEODOLITE MALA CHIT 27612 USSR MET2-1 METEOR IT RADIOTHEODOLITE METEORIT 27947 USSR MET2-I METEOR IT RADIOTHEODOLITE METEORIT 28275 USSR MET2-I METEORIT RADIOTHEODOLITE METEOR IT 28440 USSR MET2-I METEORIT RADIOTHEODOLITE METEOR IT 28698 , USSR MET2-1 METEORIT RADIOTHEODOLITE METEOR IT 28722 USSR MET:i-1 METEORIT RADIOTHEODOLITE METEOR IT 28900 USSR MET2-I METEORIT RADIOTHEODOLITE METEORIT 28952 USSR MET2-I METEORIT RADIOTHEODOLITE METEOR IT 29231 USSR MET2-1 METEORIT RADIOTHEODOLITE METEOR IT 29282 USSR MET2-I METEORIT RADIOTHEODOLITE METEOR IT 29574 USSR MET2-I METEOR IT RADIOTHEODOLITE METEORIT 29612 USSR MET2-I METEOR IT RADIOTHEODOLITE METEORIT 29634 USSR MET2-I METEORIT RADIOTHEODOLITE METEORIT 29698 USSR MET2-I METEORIT RADIOTHEODOL!TE METEOR IT 30054 USSR MET221 216 MALA CHIT RADIOTHEODOLITE MALA CHIT 30230 USSR MET2-I METEORIT RADIOTHEODOLITE METEORIT 30554 USSR MET2-I METEORIT RADIOTHEODOLITE METEOR IT 30635 USSR MET2-I METEORIT RADIOTHEODOLITE METEOR IT 30673 USSR MET2-I METEOR IT RADIOTHEODOLITE METEOR IT 30692 USSR MET2-1 METEOR1T RADIOTHEODOLITE METEORIT 30710 USSR MET2-I METEORIT RADIOTHEODOL!TE METEORIT 30758 USSR MET2-I METEORIT RADIOTHEODOLITE METEOR IT 30935 USSR MET2-1 METEORIT RADIOTHEODOLITE METEOR IT 30965 USSR MET2-I METEOR IT RADIOTHEODOLITE METEOR IT 31004 USSR MET2-1 METEORIT RADIOTHEODOLITE METEOR IT 31088 USSR MET2-I METEORIT RADIOTHEODOLITE METEOR IT . ' 31168 USSR MET221 216 · MALACHIT RADIOTHEODOLITE MALA CHIT 31300 USSR MET221 216 MALA CHIT RADIOTHEODOLITE MALA CHIT 31329 USSR MET221 216 MALA CHIT RADIOTHEODOLITE MALA CHIT 31369 USSR MET2-1 METEORIT RADIOTHEODOLITE METEORIT 31510 USSR MET2-I METEOR IT RADIOTHEODOLITE METEOR1T 31707 USSR MET2-1 METEORIT RADIOTHEODOLITE METEORIT 31735 USSR MET2-I METEOR IT RADIOTHEODOLITE METEORIT 31873 USSR MET2-1 METEORIT RADIOTHEODOLITE METEOR IT 31909 USSR MET2-1 METEORIT RADIOTHEODOLITE METEORIT 31960 USSR MET2-1 METEORIT RADIOTHEODOLITE METEORIT 32061 USSR MET2-I METEORIT RADIOTHEODOLITE METEOR IT 32150 USSR MET2-I METEORIT RADIOTHEODOLITE METEORIT 32165 USSR MET2~1 METEORIT RADIOTHEODOLITE METEORIT '32186 USSR . MET2-I METEOR IT RADIOTHEODOL!TE METEORIT 32217 USSR MET2-I METEORIT RADIOTHEODOL!TE METEOR IT 32389 USSR MET221 216 MALA CHIT RADIOTHEODOLITE MALA CHIT 32540 USSR MET2-1 METEORIT RADIOTHEODOLITE METEOR IT - 66 -

WIND FINDING STATION COUNTRY SONDE FREQ GROUND WIND FINDING EQUIPMENT NUMBER MHz EQUIPMENT SYSTEM

32618 USSR MET221 216 MALA CHIT RADIOTHEODOLITE MALA CHIT 33008 USSR MET2-I METEOR IT RADIOTHEODOLITE METEOR IT 33041 USSR MET2-I METEOR IT RADIOTHEODOLITE METEOR IT 33345 USSR MET2-I METEOR IT RADIOTHEODOLITE METEOR IT 33393 USSR MET2-I METEOR IT RADIOTHEODOLITE METEOR IT 33631 USSR MET2-I METEOR IT RADIOTHEODOLITE METEOR IT 33658 USSR MET2-1 METEORIT RADIOTHEODOLITE METEORIT 33815 USSR MET2-l METEOR IT RADIOTHEODOLITE METEORIT 33837 USSR MET2-I METEORIT RADIOTHEODOLITE METEORIT 33946 USSR MET2-I METEOR IT RADIOTHEODOLITE METEOR IT 34009 USSR MET221 216 MALA CHIT RADIOTHEODOLITE MALA CHIT 3412Z USSR MET2-l METEORIT RADIOTHEODOLITE METEOR IT 34172 USSR MET2-l METEOR IT RADIOTHEODOLITE METEORIT 34300 USSR MET2-l METEORIT RADIOTHEODOLITE METEOR IT 34560 USSR MET221 216 MALA CHIT RADIOTHEODOLITE MALACHIT 34731 USSR MET2-l METEORIT RADIOTHEODOLITE METEOR IT 34858 USSR MET2-l METEOR IT RADIOTHEODOLITE METEORIT 34880 USSR MET2-l METEORIT RADIOTHEODOLITE METEOR IT 35108 USSR MET2-l METEORIT RADIOTHEODOLITE METEOR IT 35121 USSR MET2-l METEORIT RADIOTHEODOLITE METEORIT 35229 USSR MET2-l METEOR IT RADIOTHEODOLITE METEOR IT 35394 ·USSR MET2-l METEOR IT RADIOTHEODOLITE METEOR IT 35700 USSR MET2~1 METEORIT RADIOTHEODOLITE METEOR IT 35746 USSR MET2-I METEORIT RADIOTHEODOLITE METEOR IT 35796 USSR MET2-l METEORIT RADIOTHEODOLITE METEORIT 36177 USSR MET2-l METEORIT RADIOTHEODOLITE METEOR IT 36870 USSR MET2-l METEOR IT RADIOTHEODOLITE METEORIT 37018 USSR MET2-I METEOR IT RADIOTHEODOLITE METEORIT 37054 USSR MET2-I METEORIT RADIOTHEODOLITE METEOR IT 37260 USSR MET2-I METEORIT RADIOTHEODOLITE METEOR IT 37549 USSR MET2-I METEORIT RADIOTHEODOLITE METEOR IT 37789 USSR MET2-1 METEOR IT RADIOTHEODOLITE METEORIT 37985 USSR MET2-I METEOR IT RADIOTHEODOLITE METEORIT 38062 USSR MET2-I METEORIT RADIOTHEODOLITE METEORIT 38392 USSR MET221 216 MALA CHIT RADIOTHEODOLITE MALA CHIT 38457 USSR MET2-I METEORIT RADIOTHEODOLITE METEOR IT 38507 USSR MET2-I METEOR IT RADIOTHEODOLITE METEORIT 38613 USSR MET2-I METEORIT RADIOTHEODOLITE METEORIT 38687 USSR MET2-l METEORIT RADIOTHEODOLITE METEORIT 38750 USSR MET2-I METEORIT RADIOTHEODOLITE METEOR IT 38836 USSR MET2-I METEORIT RADIOTHEODOLITE METEORIT 38880 USSR MET2-l METEORIT RADIOTHEODOLITE METEOR IT 38954 USSR MET2-l METEORIT RADIOTHEODOLITE METEORIT 39700 USSR MET2-l METEORIT RADIOTHEODOLITE METEOR IT 40007 SYRIA VRS80 403 MICROCORA OMEGA MICROCORA 40080 SYRIA VRS80 403 MICROCORA OMEGA MICROCORA 40100 LEBANON VRS80 403 PPII 40179 ISRAEL VIZ 1392 RADIOTHEODOLITE BENDIX 40265 JORDAN VIZ 1392 40373 SAUDI ARABIA VRS80 403 MICROCORA OMEGA MICROCORA 40375 SAUDI ARABIA VRS80 403 MICROCORA OMEGA MICROCORA 40394 SAUDI ARABIA VRS80 403 MICROCORA OMEGA MICROCORA 40416 SAUDI ARABIA VRS80 403 MICROCORA OMEGA MICROCORA 40430 SAUDI ARABIA VRS80 403 MICROCORA OMEGA MICROCORA 40437 SAUDI ARABIA VRS80 403 MICROCORA OMEGA MICROCORA 40582 KUWAIT VRS21 CORA OMEGA/ RADAR CORA/ ENTERPRISE 40650 IRAQ VRS80 403 MICROCORA OMEGA/RAD THEOD MICROCORA; METOX 40706 IRAN - 67 -

STATION COUNTRY SONDE FREQ GROUND WINDFINDING WIND FINDING NUMBER MHz EQUIPMENT SYSTEM EQUIPMENT

40745 IRAN VRS80 PPII RADAR? PLESSEY WF2 40754 IRAN VRS80 403 MICROCORA OMEGA MICROCORA 40766 IRAN VRS80 PPII RADAR? PLESSEY WF2 40795 IRAN VIZ RADIOTHEODOLITE 40800 IRAN VRS80 PPII RADAR PLESSEY WF2 40809 IRAN 40841 IRAN VRS80 PPII RADAR PLESSEY WF2 40848 IRAN VRS80 PP11 RADAR PLESSEY WF2 40875 IRAN VRS80 403 MICROCORA OMEGA MICROCORA 40938 AFGHANISTAN 40948 AFGHANISTAN 40990 AFGHANISTAN 41024 SAUDI ARABIA VRS80 403 MICROCORA OMEGA MICROCORA 41062 SAUDI ARABIA VRS80 403 MICROCORA OMEGA MICROCORA 41114 SAUDI ARABIA VRS80 403 MICROCORA OMEGA MICROCORA 41140 SAUDI ARABIA VRS80 403 MICROCORA OMEGA MICROCORA 41170 QATAR VRS80 403 MICROCORA OMEGA MICROCORA 41217 UNITED ARAB EMIRATES 41256 OMAN VRS80 403 MICROCORA OMEGA MICROCORA 41316 OMAN VIZ OMEGA 41344 YEMEN VRSI8 RT/AR 41360 YEMEN VRS18 RT/AR 41390 YEMEN VRSI8 RT/AR 41467 DEMOCRATIC VRS80 403 MICROCORA YEMEN 41530 PAKISTAN VRS80 PP!! 41594 PAKISTAN VIZ 1206 METOX/WF-3 RADTHEOD? METOX? 41661 PAKISTAN VRS80 PP I! 41675 PAKISTAN VRS80 PP II 41756 PAKISTAN VIZ 1206 METOX/WF-3 RADTHEOD? METOX? 41780 PAKISTAN VIZ 1206 METOX/JAP RADAR JAPAN RADIO RADIO 41883 BANGLADESH 41923 BANGLADESH 41977 BANGLADESH 42027 INDIA IM MK3 RADAR BHARAT 42101 INDIA IM MK3 RADAR BHARAT 42182 INDIA IM MK3 RADAR BHARAT 42314 INDIA IM MK3 RADAR BHARAT 42339 INDIA IM MK3 RADAR BHARAT 42361 INDIA IM MK3 RADAR BHARAT 42369 INDIA IM MK3 RADAR BHARAT 42379 INDIA IM MK3 RADAR BHARAT 42397 INDIA IM MK3 RADAR BHARAT 42410 INDIA IM MK3 RADAR BHARAT 42492 INDIA IMMK3 RADAR BHARAT 42647 INDIA IM MK3 RADAR BHARAT 42667 INDIA IM MK3 RADAR BHARAT 42700 INDIA IM MK3 RADAR BHARAT 42724 INDIA IMMK3 RADAR BHARAT 42779 INDIA IM MK3 RADAR BHARAT 42809 INDIA IM MK3 RADAR BHARAT 42867 INDIA IM MK3 RADAR BHARAT 42971 INDIA IM MK3 RADAR BHARAT 43003 INDIA IM MK3 RADAR BHARAT 43014 IXDIA IM MK3 RADAR BHARAT 43041 INDIA IMMK3 RADAR BHARAT

.• - 68 -

STATION COUNTRY SONDE FREQ GROUND WIND FINDING WIND FINDING NUMBER MHz EQUIPMENT SYSTEM EQUIPMENT

43128 INDIA IM MK3 RADAR BHARAT 43150 INDIA IM MK3 RADAR BHARAT 43185 INDIA IM MK3 RADAR BHARAT 43192 INDIA IM MK3 RADAR BHARAT 43279 INDIA IM MK3 RADAR BHARAT 43285 INDIA IM MK3 RADAR BHARAT 43295 INDIA IM MK3 RADAR BHARAT 43311 INDIA IM MK3 RADAR BHARAT 43333 INDIA IM MK3 RADAR BHARAT 43346 INDIA IM MK3 RADAR BHARAT 43353 INDIA IM MK3 RADAR BHARAT 43369 INDIA IMMK3 RADAR BHARAT 43371 INDIA IM MK3 RADAR BHARAT 43466 SRI LANKA IM MK3 44212 MO:-.IGOLIA MET2-I RADAR RS 44231 MONGOLIA MET2-I RADAR RS 44259 MONGOLIA MET2-I RADAR RS 44277 MO:-.IGOLIA MET2-I RADAR RS 44288 MONGOLIA MET2-I RADAR RS 44292 MO:'IIGOLIA MET2-1 RADAR RS 44354 MO:-.IGOLIA MET2-I RADAR RS 44373 MO:'IIGOLIA MET2-I RADAR RS 44454 NEPAL 45004 HONG KONG VRS80 403 MOD CORA OMEGA CORA 47041 N. KOREA 47058 N. KOREA 47122 S. KOREA MICRO 403 BEUKERS OMEGA? BEUKERS 47138 S. KOREA VIZ RADIOTHEODOLITE MEISEI 47158 S. KOREA MICRO 403 BEUKERS OMEGA? 47185 KOREA 47401 JAPAN MEISEI 1680 RADIOTHEODOLITE MEISEI, OK! 47412 JAPAN MEISEI 1680 RADIOTHEODOLITE MEISEI, OKI 47420 JAPAN MEISEI 1680 RADIOTHEODOLITE MEISEI, OKI 47580 JAPAN MEISEI 1680 RADIOTHEODOLITE MEISEI, OKI 47582 JAPAN MEISEI 1680 RADIOTHEODOLITE MEISEI, OKI 47590 JAPAN MEISEI 1680 RADIOTHEODOLITE MEISEI, OKI 47600 JAPAN MEISEI 1680 RADIOTHEODOLITE MEISEI, OKI 47646 JAPAN MEISEI 1680 RADIOTHEODOLITE MEISEI, OKI 47678 JAPAN MEISEI 1680 RADIOTHEODOLITE MEISEI, OK! 47681 JAPAN MEISEI 1680 RADIOTHEODOLITE MEISEI, OKI 47744 JAPAN MEISEI 1680 RADIOTHEODOLITE MEISEI, OKI 47778 JAPAN MEISEI 1680 RADIOTHEODOLITE MEISEI, OKI 47807 JAPAN MEISEI 1680 RADIOTHEODOLITE MEISEI, OKI 47827 JAPAN MEISEI 1680 RADIOTHEODOLITE MEISEI, OKI 47881 JAPAN MEISEI 1680 RADIOTHEODOLITE MEISEI, OKI 47909 JAPAN MEISEI 1680 RADIOTHEODOLITE MEISEI, OKI 47918 JAPAN MEISEI 1680 RADIOTHEODOLITE MEISEI, OKI 47936 JAPAN MEISEI 1680 RADIOTHEODOLITE MEISEI, OKI 47945 JAPAN MEISEI 1680 RADIOTHEODOLITE MEISEI, OKI 47971 JAPAN MEISEI 1680 RADIOTHEODOLITE MEISEI, OKI 47991 JAPAN MEISEI 1680 RADIOTHEODOLITE MEISEI, OKI 48008 BURMA OPT. THE OD ONLY 48053 BURMA OPT. THE OD ONLY 48062 BURMA VRSI8 RTI9/RR23 OPT. THEOD ONLY 48097 BURMA ASTOR MEI2 OPT. THE OD ONLY 48108 BURMA AS TOR MEI2 OPT. THE OD ONLY 48327 THAILAN:O MICRO 403 BEUKERS OMEGA? BEUKERS 48407 THAILAND VIZ 1392 - 69 -

STATION COUNTRY SONDE FREQ GROUND WIND FINDING WIND FINDING NUMBER MHz EQUIPMENT SYSTEM EQUIPMENT

·--~- -~-· ·--- 48455 THAILAND VIZ METOX/MICRO- RAD THEOD, OMEGA METOX/ MICROCORA CORA 48568 THAILAND VIZ 1392 RADIOTHEODOLITE METOX 48601 MALAYSIA VRS80 PP!! RADAR PLESSEY 48615 MALAYSIA VRS80 PP!! RADAR PLESSEY 48648 MALAYSIA ASTOR RADAR PLESSEY 48657 MALAYSIA AS TOR RADAR PLESSEY 48698 SINGAPORE VRS80 MICROCORA OMEGA MICROCORA 48820 VIETNAM 48855 VIETNAM 48900 VIETNAM 50527 ' CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 50557 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 50774 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 50953 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 51076 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 51431 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 51463 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 51644 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 51709 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 51777 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 51828 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 51848 CHINA SHANG 400 SECONDARy· RADAR BRIDGE MACH 52203 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 52267 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 52323 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 52418 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 52533 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 52681 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 52818 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 52836 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 52866 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 52889 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 53068 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 53463 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 53513 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 53614 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 53772 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 53845 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 53915 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 54102 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 54135 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 54161 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 54218 CHINA ·SHANG 400 SECONDARY RADAR BRIDGE MACH 54292 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 54337 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 54342 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 54374 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 54497 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 54511 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 54662 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 54823 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 54857 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 55299 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 55591 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 56029 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 56080 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 56137 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH - 70 -

STATION COUNTRY SONDE FREQ GROUND WIND FINDING WIND FINDING NUMBER MHz EQUIPMENT SYSTEM EQUIPMENT

56146 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 56294 .CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 56571 CHINA SHANG 400, SECONDARY RADAR BRIDGE MACH 56691 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 56739 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 56778 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 56964 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 56985 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 57036 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 57083 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 57127 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 57178 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 57447 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 57461 CHINA _.,_. -~-HbNG 400 SECONDARY RADAR BRIDGE MACH 57494 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 57516 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 57679 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 57749 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 57816 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 57957 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 57972 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 57993 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 58027 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 58150 CHINA SHA.NG 400 SECONDARY RADAR BRIDGE MACH 58203 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 58238 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 58367 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 58424 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 58457 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 58606 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 58633 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 58666 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 58725 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 58847 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 58968 TAIWAN 59134 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 59211 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 59265 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 59287 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 59316 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 59431 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 59553 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 59758 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 59981 CHINA SHANG 400 SECONDARY RADAR BRIDGE MACH 60020 CANARY ISL VRS80 403 MODCORA OMEGA CORA (SPAIN) 60155 MOROCCO MES RADIOTHEODOLITE MORIN 60191 MOROCCO MES RADIOTHEODOLITE MORIN 60250 MOROCCO MES OPT. THEOD? 60390 ALGERIA VRS21 MEI2/METOX RADIOTHEOD? 60550 ALGERIA RKZ-5 60566 ALGERIA VRSI8? RADAR? PLESSEY WF3? 60571 ALGERIA VRS18 RADAR PLESSEY WF3 60680 ALGERIA VRSI8 RADAR PLESSEY WF3 60715 TUNISIA VRS80 403 MODCORA OMEGA CORA 60760 TUNISIA VRSIS 61052 NIGER VRS80 METOX.PPII RADIOTHEODOLITE METOX 61202 MALI VRS18 RT18/RR 22 - 71 -

STATION COUNTRY SON DE FREQ GROUND WIND FINDING WIND FINDING NUMBER MHz EQUIPMENT SYSTEM EQUIPMENT

61223 MALI VRS80 CITAR/PP!l RADAR? 61291 MALI VRS80 CITAR/PP!l RADAR? 61415 MAURITANIA VRS80 CITAR/PP!l RADAR? 61641 SENEGAL VRS80 CITAR/PP!l RADIOTHEODOLITE METOX 6!90! ST HELENA VRS80 403 PP!!+ RADAR PLESSEY WF3 S.ATLANTIC 61902 ASCENSION ISL MSS MSS RADIOTHEODOLITE MSS 61967 DIEGO GARCIA VRS80 . 400 MAR WIN OMEGA MAR WIN 61996 !LE AMSTERDAM MES 61998 ILES KERGUELEN MES 62010 LIBYA VRS80 403 MICROCORA OMEGA MICROCORA 62019 LIBYA VRS80 403 MICROCORA OMEGA MICROCORA 62053 LIBYA VRS80 403 MICROCORA OMEGA MICROCORA 62062 LIBYA VRS80 403 MICROCORA OMEGA MICROCORA 62103 LIBYA VRS80 403 MICROCORA OMEGA MICROCORA 62124 LIBYA VRS80 403 MICROCORA OMEGA MICROCORA 62271 LIBYA VRS80 403 MICROCORA OMEGA MICROCORA 62306 EGYPT VIZ RADAR PLESSEY/EEC 62378 EGYPT VIZ RADAR PLESSEY /EEC 62!tl4 EGYPT VIZ RADAR PLESSEY/EEC 62641 SUDAN VRSI8 RADIOTHEODOLITE FRONKE GRODASIE 62650. SUDAN VRSI8 RADIOTHEODOLITE FRONKE GRODASIE 62721 SUDAN · VRSI8 RADIOTHEODOLITE FRONKE GRODASIE 62760 SUDAN VRSI8 RADIOTHEODOLITE FRONKE GRODASIE 62840 SUDAN VRSI8 RADIOTHEODOLITE FRONKE GRODASIE 63021 ETHIOPIA VRS80 403 DIGICORA OMEGA DIG! CO RA 63450 ETHIOPIA VRS80 403 DIGICORA OMEGA DIGICORA 63478 ETHIOPIA VRS80 403 DIG! CO RA OMEGA DIGICORA 63723 KENYA MES73A RADAR ZEPHYR 63741 KENYA MES73A RADAR ZEPHYR 63832 TANZANIA VRSI8 RADAR/ RAD THE OD ENTERPRISE/ MES 63894 TANZANIA VRSI8 RADAR/ RAD THEOD ENTERPRISE/ MES 63985 SEYCHELLES VRS80 403 PP! I RADAR PLESSEY WF3 64650 CE;-.;TRAL VRS80 METOXIPPII AFRICAN REP. 64700 CHAD VRS80 METOX/PPII OPT.THEOD ONLY? 64910 CAMEROON VRS80 DIGICORA OMEGA DIG! CO RA 65046 NIGERIA 65123 NIGERIA VRSI8 65202 NIGERIA VRSI8 65418 GHANA 65578 COTE D'IVOIRE VRS80 CITAR/PPII 66160 ANGOLA 67083 MADAGASCAR VRS80 403 OMERA/PPI! RADAR? 67197 MADAGASCAR VRS80 403 OMERAIPPII RADAR? 67237 MOZAMBIQUE VRS80 1680 GMD/PPII RADIOTHEODOLITE GMD 67341 MOZAMBIQUE VRS80 403 DIG! CO RA OMEGA DIG! CO RA 67586 MALAWI 67666 ZAMBIA VRS80 403 DIGICORA OMEGA DIGICORA 67774 ZIMBABWE VRS80 RADAR PLESSEY I ZEPHYR 67964 ZIMBABWE VRS80 PP! I RADAR PLESSEY I ZEPHYR 68112 NAMIBIA VRS80 1680 PP I! RADIOTHEODOLITE RD65A 68174 SOUTH AFRICA VRS80 1680 PP!! RADIOTHEODOLITE RD65A 68240 BOTSWANA 68263 SOUTH AFRICA VRS80 1680 PP! I RADIOTHEODOLITE RD65A 68351 SOuTH AFRICA VRS80 1680 PP! I RADIOTHEODOLITE RD65A 68406 SOL:TH AFRICA VRS80 1680 PP! I RADIOTHEODOLITE RD65A 68424 SOlJTH AFRICA VRS80 1680 PP!! RADIOTHEODOLITE RD65A - 72 -

STATION COUNTRY SONDE FREQ GROUND WIND FINDING WIND FINDING NUMBER MHz EQUIPMENT SYSTEM EQUIPMENT

-···--·-~------·-·· 68442 SOUTH AFRICA VRS80 1680 RADIOTHEODOLITE RD65A 68461 SOUTH AFRICA VRS80 1680 RADIOTHEODOLITE RD65A 68512 SOUTH AFRICA VRS80 68588 SOUTH AFRICA VRS80 1680 RADJOTHEODOLITE RD65A 68816 SOUTH AFRICA VRS80 1680 RADIOTHEODOLITE RD65A 68842 SOUTH AFRICA VRS80 1680 RADIOTHEODOLITE RD65A 68906 SOUTH AFRICA VRS80 1680 RADIOTHEODOLITE RD65A 68994 SOUTH AFRICA VRS80 1680 RADIOTHEODOLITE RD65A 70026 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 70086 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 70133 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 70200 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 70219 UNITED STATES SDC 1680 RADIOTHEODOLITE SERVO CORP 70231 UNITED STATES SDC 1680 RADIOTHEODOLITE SERVO CORP 70261 UNITED STATES SDC 1680 RADIOTHEODOLITE SERVO CORP 70266 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 70273 UNITED STATES VIZ 1680 RADJOTHEODOLITE SERVO CORP 70308 UNITED STATES VIZ 1680 RADJOTHEODOLITE SERVO CORP 70316 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 70326 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 70350 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 70361 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 70398 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 70414 UNITED STATES MSS 1680 GMD5 RADIOTHEODOLITE GMD5 70454 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 71043 CANADA SANG 1680 RADIOTHEODOLITE BENDIX 71051 CANADA SANG 1680 RADIOTHEODOLITE BEND! X 71072 CANADA SANG 1680 RADIOTHEODOLITE BEND IX 71081 CANADA SANG 1680 RADIOTHEODOLITE BEND! X 71082 CANADA SANG 1680 RADIOTHEODOLITE BEND! X 71109 CANADA SANG 1680 RADIOTHEODOLITE BENDIX 71115 CANADA SANG 1680 RADIOTHEODOLITE BENDIX 71119 CANADA SANG 1680 RADJOTHEODOLITE BEND! X 71399 CANADA SANG 1680 RADIOTHEODOLITE BEND IX 71600 CANADA SANG 1680 RADIOTHEODOLITE BENDIX 71603 CANADA VRS80 403 PPII LORAN BEUKERS LOCATE 71722 CANADA SANG 1680 RADIOTHEODOLITE BEND! X 71801 CANADA SANG 1680 RADIOTHEODOLITE BENDIX 71811 CANADA SANG 1680 RADIOTHEODOLITE BEND! X 71815 CANADA SANG 1680 RADIOTHEODOLITE BENDIX 71816 CANADA SANG 1680 RADIOTHEODOLITE BENDIX 71823 CANADA SANG 1680 RADIOTHEODOLITE BEND! X 71836 CA:-.IADA SANG 1680 RADIOTHEODOLITE BENDIX 71848 CANADA SANG 1680 RADIOTHEODOLITE BENDIX 71867 CANADA SANG 1680 RADIOTHEODOLITE BEND IX 71896 CA:-.IADA VRS80 1680 OMEGA DIG! CO RA 71906 CA:-./ ADA SANG 1680 RADIOTHEODOLITE BEND! X 71907 CA:-./ ADA SANG 1680 RADIOTHEODOLITE BEND IX 71909 CA:-.IADA SANG 1680 RADIOTHEODOLITE BEND! X 71913 CA:-.IADA SANG 1680 RADIOTHEODOLITE BENDIX 71915 CANADA SANG 1680 RADIOTHEODOLITE BENDIX. 71917 CANADA SANG 1680 RADIOTHEODOLITE BENDIX 71924 CANADA SANG 1680 RADIOTHEODOLITE BENDIX 71925 CANADA SANG 1680 RADIOTHEODOLITE BENDIX 71926 CANADA SANG 1680 RADIOTHEODOLITE BENDIX 71934 CA:\ ADA SANG 1680 RADIOTHEODOLITE BEND! X 71945 CANADA SANG 1680 RADIOTHEODOLITE BENDIX 71957 CANADA SANG 1680 RADIOTHEODOLITE BEND! X - 73 -

STATION COUNTRY SONDE FREQ GROUND WIND FINDING WINDFINDING NUMBER MHz EQUIPMENT SYSTEM EQUIPMENT

71964 CANADA SANG 1680 RADIOTHEODOLITE BENDIX 72201 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72203 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72208 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72209 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 722l0 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72213 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72220 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72221 UNITED STATES MSS 1680 GMD5 RADIOTHEODOLITE GMD5 72224 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72225 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72229 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72233 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72235 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72239 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72240 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72247 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72250 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72255 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72257 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72260 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72261 UNITED STATES SDC 1680 RADIOTHEODOLITE SERVO CORP 72265 UNITED STATES SDC 1680 RADIOTHEODOLITE SERVO CORP 72269 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72270 UNITED STATES SDC 1680 RADIOTHEODOLITE SERVO CORP 72274 UNITED STATES SDC 1680 RADIOTHEODOLITE SERVO CORP 72291 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72293 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72304 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72311 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72317 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72327 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72340 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72349 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72353 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72355 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72363 UNITED STATES SDC 1680 RADIOTHEODOLITE SERVO CORP 72365 UNITED STATES SDC 1680 RADIOTHEODOLITE SERVO CORP 72374 UNITED STATES SDC 1680 RADIOTHEODOLITE SERVO CORP 72381 UNITED STATES MSS 1680 MSS RADIOTHEODOLITE MSS 72387 UNITED STATES MSS 1680 GMD5 RADIOTHEODOLITE GMD5 72393 UNITED STATES MSS 1680 MSS RADIOTHEODOLITE MSS 72402 UNITED STATES VIZ 1680 LORAN BEUKERS 72403 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72407 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72424 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72425 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72429 Ul'\ITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72433 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72451 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72456 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72468 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72469 UNITED STATES SDC 1680 RADIOTHEODOLITE SERVO CORP 72476 U;'\ITED STATES SDC 1680 RADIOTHEODOLITE SERVO CORP 72486 UNITED STATES SDC 1680 RADIOTHEODOLITE SERVO CORP 72493 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72518 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72520 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP - 74 -

WIND FINDING STATION COUNTRY SONDE FREQ GROUND WIND FINDING EQUIPMENT NUMBER MHz EQUIPME;.;T SYSTEM

·-·· ---·---~------·------·------~-~------~------~~--- 72528 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72532 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72553 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72562 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72572 UNITED STATES SDC 1680 RADIOTHEODOLITE SERVO CORP 72576 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72583 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72597 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72606 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72637 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72645 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72654 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72655 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72662 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72681 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72694 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72712 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72734 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72747 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72764 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72768 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72775 UNITED:STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72785 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 72797 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 73455 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 74230 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 74420 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVOCORP 74421 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 74494 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 74500 U:';ITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 74501 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 74504 UNITED STATES MSS 1680 MSS RADIOTHEODOLITE MSS 74521 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 74606 u;.;ITED STATES MSS 1680 MSS RADIOTHEODOLITE MSS 74611 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 74612 UNITED STATES MSS 1680 MSS RADIOTHEODOLITE MSS 74630 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 74631 u;.;ITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 74702 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 74718 U;.;ITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 74731 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 74733 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 74734 UNITED STATES VIZ 1680 RADIOTHEODOLITE SERVO CORP 74794 UNITED STATES MSS 1680 MSS RADIOTHEODOLITE MSS 76151 MEXICO VIZ 1680 RADIOTHEODOLITE GMDI 76225 MEXICO VIZ 1680 RADIOTHEODOLITE GMDI 76256 MEXICO VIZ 1680 RADIOTHEODOLITE GMDI 76394 MEXICO VIZ 1680 RADIOTHEODOLITE GMDI 76458 MEXICO VIZ 1680 RADIOTHEODOLITE GMDI 76612 MEXICO VIZ 1680 RADIOTHEODOLITE GMDI 76644 MEXICO VIZ 1680 RADIOTHEODOLITE GMDI 76654 MEXICO VIZ 1680 RADIOTHEODOLITE GMDI 76679 MEXICO VIZ 1680 RADIOTHEODOLITE GMDI 76692 MEXICO VIZ 1680 RADIOTHEODOLITE GMDI 76723 MEXICO VIZ 1680 RADIOTHEODOLITE GMDI 78016 BERMUDA VIZ RADIOTHEODOLITE GMD 78073 BAHAMAS VIZ 1680 78325 CUBA - 75 -

STATION COUNTRY SONDE FREQ GROUND WIND FINDING WIND FINDING NUMBER MHz EQUIPMENT SYSTEM EQUIPMENT

-~ .. --_..,...... ,.,...,--··"--~------·-·--·~ - 78355 CUBA 78367 CUBA 78384 CA YMAN ISLANDS VIZ 1680 RADIOTHEODOLITE 78397 JAMAICA VIZ I680 RADIOTHEODOLITE 78486 DOMINICAN VIZ 1680 RADIOTHEODOLITE BEND IX REPUBLIC 78526 PUERTO RICO VIZ RADIOTHEODOLITE 78583 BELIZE VIZ 1680 RADIOTHEODOUTE 78641 GUATEMALA VIZ 1680 OPT THE OD ONLY 78720 HONDURAS VIZ 1680 RADIOTHEODOLITE BEND IX 78762 COSTA RICA VIZ 1680 RADIOTHEODOLITE BEND! X 78806 PANAMA MSS 1680 GMD5 RADIOTHEODOLITE GMD5 78861 ANTIGUA VIZ 1680 GMD4 RADIOTHEODOLITE GMD4 78866 ST.MAARTEN VIZ 1680 78897 GUADELOUPE VIZ 1680 78954 BARBADOS VIZ? 1680 78970 TRINIDAD VIZ 1680 RADIOTHEODOLITE 78988 CURACAO VIZ 1680 80222 COLOMBIA VIZ GMDI RADIOTHEODOLITE GMDI 80241 COLOMBIA VRSJ8 RADIOTHEODOLITE BEND! X? 80337 COLOMBIA VRS80 PPII RAD THEOD? BENDIX? 80398 COLOMBIA VRS80 PPII RADTHEOD? BEND IX? 80413 VEXEZUELA VRS80 DIGICORA OMEGA DIGICORA 80447 VEXEZUELA VRS80 RADIOTHEODOLITE RD65A 80462 VENEZUELA VRS80 RADIOTHEODOLITE RD65A 80476 VE:"i"EZUELA VRS80 RADIOTHEODOLITE RD65A 81405 FRENCH GUIANA MES 82193 BRAZIL 82280 BRAZIL VRS80 METOX/PPII RADIOTHEODOLITE METOX 82332 BRAZIL VRS80 METOX/PPII RADIOTHEODOLITE METOX 82397 BRAZIL VRS80 METOX/PPJJ RADIOTHEODOLITE METOX 82400 BRAZIL VRS80 METOX/PPJI RADIOTHEODOLITE METOX 82599 BRAZIL VRS80 GMD/PPII RADIOTHEODOLITE GMD 82678 BRAZIL VRS80 METOX/PPII RADIOTHEODOLITE METOX 82765 BRAZIL VRS80 METOX/PPII RADIOTHEODOLITE METOX 82900 BRAZIL VRS80 METOX/PPII RADIOTHEODOLITE METOX 82983 BRAZIL VRS80 METOX/PPII RADIOTHEODOLITE METOX 83208 BRAZIL 83229 BRAZIL VRS80 METOX/PPII RADIOTHEODOLITE METOX 83288 BRAZIL VRS80 METOX/PPII RADIOTHEODOLITE METOX 83378 BRAZIL VRS80 METOX/PPII RADIOTHEODOLITE METOX 83498 BRAZIL VRS80 METOX/PPJI RADIOTHEODOLITE METOX - ~------83612 BRAZIL VRS80 METOX/PPII RADIOTHEODOLITE METOX 83650 BRAZIL VRS80 403 CORA OMEGA CORA 83746 BRAZIL VRS80 METOX/PPIJ RADIOTHEODOLITE METOX 83780 BRAZIL VRS80 METOX/PPIJ RADIOTHEODOLITE METOX 83840 BRAZIL VRS80 METOX/PPIJ RADIOTHEODOLITE METOX 83971 BRAZIL VRS80 METOX/PPII RADIOTHEODOLITE METOX 84008 GALAPAGOS ISL VRSI8 84203 EClJADOR VIZ 1392 RADAR ENTERPRISE 84377 PERU VIZ GMD RADIOTHEODOLITE GMD 84628 PERU VIZ GMD RADIOTHEODOLITE GMD 85201 BOLIVIA VIZ 85442 CHILE VIZ GMD RADIOTHEODOLITE GMD 85469 CHILE VIZ GMD RADIOTHEODOLITE GMD 85543 CHILE VIZ GMD RADIOTHEODOLITE GMD 85799 CHILE VIZ GMD RADIOTHEODOLITE GMD 85934 CHILE VIZ GMD RADIOTHEODOLITE GMD" - 76 -

STATION COUNTRY SONDE FREQ GROUND WIND FINDING WIND FINDING NUMBER MHz EQUIPMENT SYSTEM EQUIPMENT

86218 PARAGUAY 87047 ARGENTINA VRS80 PP!! 87155 ARGENTINA VRS80 PP!! 87344 ARGENTINA VRS80 PP!! 87418 ARGENTINA VRS80 PP!! 87576 ARGENTINA VRS80 PP!! 87623 ARGENTINA VRS80 PP!! 87715 ARGENTINA VRS80 403 MICROCORA OMEGA MICROCORA 87748 ARGENTINA VRS21 ARI5 RADAR EEC 87860 ARGENTINA VRS80 403 MICROCORA OMEGA MICROCORA 88889 FALKLAND VRS80 403 MICROCORA OMEGA MICROCORA ISLANDS 88968 ANTARCTICA 89001 ANTARCTICA VRS80 1680 PP!! RADIOTHEODOLITE RD65A 89002 ANTARCTICA GM60 403 89009 ANTARCTICA VIZ 89022 ANTARCTICA VRS80 403 MICROCORA OMEGA MICROCORA 89050 ANTARCTICA MET 89055 ANTARCTICA VRS80 403 MODCORA OMEGA CORA 89056 ANTARCTICA 89512 ANTARCTICA MET 89532 ANTARCTICA MEISEI 89542 ANTARCTICA MET 89564 ANTARCTICA 89571 ANTARCTICA VRS80 PP!! 89592 ANTARCTICA MET 89606 ANTARCTICA MET 8961 [ ANTARCTICA VRS80 DIGICORA OMEGA DIGICORA 89642 ANTARCTICA 89657 ANTARCTICA 89664 ANTARCTICA VIZ 91066 MIDWAY ISL VIZ GMD RADIOTHEODOLITE GMD PACIFIC 91165 KAUAI, HAWAII VIZ GMD RADIOTHEODOLITE GMD 91217 MARIANA ISL, VIZ GMD RADIOTHEODOLITE GMD PACIFIC 91245 WAKE ISLAND VIZ GMD RADIOTHEODOLITE GMD PACIFIC 91275 JOHNSTON ISL VIZ GMD RADIOTHEODOLITE GMD PACIFIC 91285 HAWAII VIZ GMD RADIOTHEODOLITE GMD 91334 CAROLINE ISL VIZ GMD RADIOTHEODOLITE GMD PACIFIC 91348 CAROLINE ISL VIZ GMD RADIOTHEODOLITE GMD PACIFIC 91366 MARS HALL IS MSS I680 MSS RADIOTHEODOLITE MSS PACIFIC 91376 MARSHALL IS VIZ GMD RADIOTHEODOLITE GMD PACIFIC 91408 PALAUISL VIZ GMD RADIOTHEODOLITE GMD PACIFIC 91413 CAROLINE IS VIZ GMD RADIOTHEODOLITE GMD PACIFIC 91517 SOLOMON ISL PACIFIC 91557 VA~UATU PACIFIC VRS80 403 MICROCORA OMEGA MICROCORA 91592 NLLE-CALEDONIE MES RADIOTHEODOLITE METOX 91610 KIRIBATI PACIFIC VIZ RADAR? - 77 -

STATION COUNTRY SONDE FREQ GROUND WIND FINDING WIND FINDING NUMBER MHz EQUIPMENT SYSTEM EQUIPMENT

9I643 TUVALU PACIFIC VIZ RADAR? 9I680 FIJI PACIFIC AS TOR 91765 SAMOA PACIFIC 91801 COOK ISL VIZ PACIFIC 91843 COOK ISL VIZ PACIFIC 91925 FRENCH MES RADIOTHEODOLITE METOX POLYNESIA 91938 FRENCH MES RADIOTHEODOLITE METOX POLYNESIA 91943 FRENCH MES RADIOTHEODOLITE METOX POLYNESIA 91944 FRENCH MES RADIOTHEODOLITE METOX POLYNESIA 91948 FRENCH MES? RADIOTHEODOLITE METOX POLYNESIA 91958 FRENCH POLYNESIA 93012 NEW ZEALAND VIZ 403 RADAR 93417 NEW ZEALAND VRS80 403 PP!! 93844 NEW ZEALAND VIZ 403 RADAR 93944 NEW ZEALAND VRS80 403 D!GICORA RADAR 93986 NEW ZEALAND VRS80 D!GICORA OMEGA DIGICORA 93997 NEW ZEALAND 94120 AUSTRALIA VRS80 403 PPII RADAR 94150 AUSTRALIA VRS80 403 PP! I RADAR 94203 AUSTRALIA VRS80 403 PPI! RADAR 94294 AUSTRALIA VRS80 403 PP I! RADAR 94299 AUSTRALIA VRS80 403 PP I! RADAR 94300 AUSTRALIA VRS80 403 PP!! RADAR 94312 AUSTRALIA VRS80 403 PPII RADAR 94326 AUSTRALIA VRS80 403 PP!! RADAR 94332 AUSTRALIA VRS80 403 PPII RADAR 94380 AUSTRALIA VRS80 403 PP I! RADAR 94461 AUSTRALIA VRS80 403 PP!! RADAR 94510 AUSTRALIA VRS80 403 PP! I RADAR 94527 AUSTRALIA VRS80 403 PP!! RADAR 94578 AUSTRALIA VRS80 403 PP I! RADAR 94610 AUSTRALIA VRS80 403 PP!! RADAR 94637 AUSTRALIA VRS80 403 PP! I OPT.THEOD ONLY 94638 AUSTRALIA VRSBO 403 PPII RADAR 94659 AUSTRALIA VRS80 403 PPI! RADAR 94672 AUSTRALIA VRS80 403 PP!! RADAR 94711 AUSTRALIA VRS80 403 PPII RADAR 94750 AUSTRALIA VRS80 403 PP I! RADAR 94767 AUSTRALIA VRS80 403 PP!! RADAR 94776 AUSTRALIA VRS80 403 PPII RADAR 94802 AUSTRALIA VRS80 403 PP!! RADAR 94821 AUSTRALIA VRS80 403 PP! I RADAR 94865 AUSTRALIA VRS80 403 ·PP!! RADAR 94867 AUSTRALIA VRS80 403 PPII RADAR 94910 AUSTRALIA VRS80 403 PPI! RADAR 94975 AUSTRALIA VRS80 403 PPII RADAR 94995 AUSTRALIA VRS80 403 PP!! RADAR 94996 AUSTRALIA VRS80 403 PP!! RADAR 94998 AUSTRALIA VRS80 403 PP! I RADAR 96035 INDONESIA - 78 -

STATION COUNTRY SONDE FREQ GROUND WIND FINDING WIND FINDING NUMBER MHz EQUIPMENT SYSTEM EQUIPMENT

96163 INDONESIA 96237 INDONESIA 96315 BRUNEI DARUSSALAM 96413 MALAYSIA AS TOR RADAR PLESSEY 96441 MALAYSIA AS TOR RADAR PLESSEY 96471 MALAYSIA VRS80 PP11 RADAR PLESSEY 96481 MALAYSIA VRS80 PP I! RADAR PLESSEY 96749 INDONESIA 96781 INDONESIA 96881 INDONESIA 96935 INDONESIA 96996 COCOS ISLS VRS80? PPil? RADAR? PACIFIC 97014 INDONESIA 97072 INDONESIA 97180 INDONESIA 97560 INDONESIA 97724 INDONESIA 98223 PHILIPPINES VRS80 403 MICROCORA OMEGA MICROCORA 98327 PHILIPPINES MSS 1680 GMD5 RADIOTHEODOLITE GMD5 98646 PHILIPPINES VRSI8 98836 PHILIPPINES VRS18 BNTA C7C USSR MET C7L UNITED KINGDOM VRS80 403 MODCORA OMEGA CORA C7M NORWAY VRS80 LOCATE+PPII LORAN LOCATE DBBH FRG VRS80 403 DIGICORA? OMEGA DIGICORA? DBFJ FRG VRS80 403 DIGICORA OMEGA DIGICORA DBFM FRG VRS80 403 DIGICORA OMEGA DIGICORA DBLK FRG VRSSO 403 DIGICORA OMEGA DIGICORA DRAY FRG DUTU EREA USSR MET EREB USSR MET EREC USSR MET EREH USSR MET EREI USSR MET ERES USSR MET ERET USSR MET EREU USSR MET ESGG USSR MET FNMZ FRANCE NONE FNOR FRANCE VRS80 403 PPII+SARE OMEGA SARE FNOU FRANCE VRS80 403 PPil+SARE OMEGA SARE FKPH FRANCE VRS80 403 PPU+SARE OMEGA SARE FNRS FRANCE VRS80 403 PPII+SARE OMEGA SARE GACA UNITED KINGDOM VRS80 403 MODCORA OMEGA MODCORA IBWQ ITALY NONE JBOA JAPAN VRS80 403 DIGICORA OMEGA DIGICORA JCCX JAPAN VRS80 403 DIGICORA OMEGA DIGICORA JDWX JAPAN VRS80 403 DIGICORA OMEGA DIGICORA LADB2 CA:'\ ADA VRS80 403 DIGICORA OMEGA DIGICORA LBHA NORWAY NONE LBHB NORWAY NONE 0:\DA UNITED KINGDOM VRS80 403 DIGICORA OMEGA DIGICORA OVYA DE:\ MARK VRS80 403 DIGICORA? OMEGA DIGICORA? PWMG BRAZIL NONE - 79 -

STATION COUNTRY SONDE FREQ GROUND WIND FINDING WIND FINDING NUMBER MHz EQUIPMENT SYSTEM EQUIPMENT

····-·--· - PWSA BRAZIL NONE UAAX USSR MET UBNZ USSR MET UHQS USSR MET UJFO USSR MET UMAY USSR MET UMFW USSR MET UPUI USSR MET UPUJ USSR MET UUPB USSR MET UUQR USSR MET UVMJ USSR MET UWEC USSR MET UYAJ USSR MET UZGH USSR MET UZNZ USSR MET VPHA UNITED KINGDOM VRS80 403 DIGICORA OMEGA DIGICORA VSBV3 FINLAND VRS80 403 DIGICORA OMEGA DIGICORA ZCSK CANADA VRS80 403 DIGICORA OMEGA DIGICORA?