Pacific Marine Science Report 76-16

OCEANOGRAPHIC OBSERVATIONS AT OCEAN STATION P (50 0 N, 145°W)

Volume 70

5 December 1975 - 11 January 1976

Institute of Ocean Sciences, Patricia Bay

Victoria, B.C.

July, 1976

This is a manuscript which has received only limited circulation. On citing this report in a bibliography, the title should be followed by the words "UNPUBLISHED MANUSCRIPT" which is in accordance with accepted bibliographic custom.

ABSTRACT

Physical, chemical and biological oceanographic observations are made from the weathers hip at Ocean Weather Station Papa, and between Esquimalt and Station Papa, on a routine continuing basis. Physical oceanography data only are shown, including profiles obtained with bottle casts, and conductivity­temperature-pressure instruments. Surface observations are also shown.

1

INTRODUCTION

Canadian operation of Ocean Weather Station P (Latitude 50 0 00'N, Longitude 145°00'W) was inaugurated in December 1950. The station is occupied primarily to make meteorological observations of the surface and upper air and to provide an air-sea rescue service. The station is manned by two vessels operated by the Marine Services Branch of the Ministry of Transport. They are the eeGS Vancouver and the eeGS Quadra. Each ship remains on station for a period of six weeks, and is then relieved by the alternate ship, thus main­taining a continuous watch.

Bathythermograph observations have been made at Station P since July 1952. A program of more extensive oceanographic observations commenced in August 1956. This was extended in April 1959 by the addition of a series of oceanographic stations along the route to and from Station P and Swiftsure Bank. These stations are known as Line P stations. The number of stations on Line P has been increased twice and now consists of twelve stations (Fig. 1). Bathythermograph observations and surface salinity sample collections, in addition to being made on Line P oceanographic stations, are also made at odd meridians at 40', i.e. 139°40'W, 141°40'W, etc. These stations are known as Line P BT stations. Data observed prior to 1968 has been indexed by Collins et al. (1969).

The present record includes hydrographic and .continuous1y sampled STP data collected from the eeGS Vancouver during the period 5 December 1975 to 11 January 1976.

All physical oceanographic data have been stored by the Canadian Oceanographic Data Centre (CODC), 615 Booth Street, Ottawa, Ontario, Canada. Requests for these data should be directed to CODC.

Biological and productivity data are published in the Manuscript Report series of the Fisheries Research Board of Canada (FRB), Biological Station, Nanaimo, British Columbia, Canada. Requests for these data should be directed to FRB.

Marine geochemical data are for the Ocean Chemistry Group, Ocean and Aquatic Sciences, Environment Canada, 512 - 1230 Government Street, Victoria, British Columbia, Canada.

PROGRAM OF OBSERVATIONS FROM CCGS VANCOUVER, 5 December 1975 - 11 January 1976 (P-75-9) (CODC Ref. No. 15-75-009)

Oceanographic observations were made by Mr. B.L. Twaites of CHEMEX Labs Ltd., North Vancouver, B.C.

En route to Station P, Line P Stations 1 to 5 and 12 were occupied and a STP profile made to near bottom or 1500 metres.

Samples for salinity, nitrate, nutrient, alkalinity and total CO 2 were ~aken from the seawater loop at these stations.

All other stations were missed due to late sailing.

2

Surface tarball tows were made at Stations 2 and 4.

The thermosalinograph and the surface temperature recorder were run continuously.

Mechanical BT or XBT's were taken at all Line P and BT stations.

At Station P the oceanographic program was carried out as follows:

I. Physical Oceanography

1) Profiles of salinity, temperature and oxygen were obtained from 5 hydro­graphic stations to near bottom (4200 metres) .

2) 25 STP profiles to 1500 metres and 1 to 375 metres were obtained.

3) BT's were taken every three hours to coincide with meteorological obser­vations, encoded and transmitted according to the lGOSS format.

4) Salinity samples daily at 0000 hrs GMT from the seawater loop.

II. Marine Geochemistry

1) Nutrient samples were collected daily at 0000 hrs GMT and once every hour for a 24 hour period from the seawater loop.

2) Alkalinity and total CO 2 samples every three days from the seawater loop.

3) Air CO 2 samples weekly in quadruplicate.

4) 6-surface tarball tows.

5) 2 seawater C-14 samples were extracted from 45 gallons of seawater taken from the seawater loop.

6) Hydrocasts for nutrients, alkalinity, total CO 2 , and tritium.

III. Biological and Productivity

Samples were obtained as follows:

1) 5 - 150 metre vertical plankton hauls. 2 - 1200 metre vertical plankton hauls.

2) Samples for plant pigment, nitrate and C14 productivity were obtained from two hydrocasts to 200 metres.

En route from Station P, all line P stations were missed. The ship left Station P three days ahead of schedule on a course North of Line P, to enable a rendezvous with a helicopter for an emergency evacuation of an injured seaman.

3

Samples for salinity, nitrate, nutrient, alkalinity and total CO 2 were taken from the seawater loop at 6 positions.

XBT's were taken at 16 positions.

The thermosalinograph and the surface temperature recorder were run continuously.

IV. Observations for Other Agencies

1) Marine mammal observations were made by the ship's officers for Mr. I. McAskie, Fisheries Research Board of Canada, Biological Station, Nanaimo, B.C., Canada.

2) Bird observations were made by the ship's officers for Dr. M. Myres, University of Alberta, Calgary, Alberta, Canada and Mr. J. Guiguet, Curator of Birds and Mammals, Provincial Museum, Department of Recreation and Conservation, Victoria, British Columbia, Canada.

3) Air CO 2 samples weekly in duplicate for Scripps Institution of Oceanography, La Jolla, San Diego, California, U.S.A.

Data was processed for publication by Messrs. C. de Jong, B. Minkley and E. Luscombe.

OBSERVATIONAL PROCEDURES

Temperatures at depth were measured by deep-sea-reversing thermometers of Richter and Wiese and/or Yoshino Keiki Co, manufacture. Two protected thermometers were used on all bottles, and one unprotected thermometer was used on each bottle at depths of 300 m or greater. The accuracy of protected reversing thermometers is believed to be ± 0.02°C.

Surface water temperatures were measured from a bucket sample using a deck thermometer of ± O.loC accuracy.

Salinity determinations were made aboard ship with either an Auto-lab Model 601 Mark III inductive salinometer or a Hytech Model 6220 lab salino­meter. Accuracy using duplicate determinations is estimated to be ± 0.003%°'

Depth determinations were made using the "depth difference" method described in the U.S.N. Hydrographic Office Publication No. 607 (1955). Depth estimates have an approximate accuracy of ±5 m for depths less than 1000 m, and ±0.5% of depth for depths greater than 1000 m.

The dissolved oxygen analyses were done in the shipboard laboratory by a modified Winkler method (Carpenter, 1965).

4

Line P engine intake continuous temperatures were recorded by a Honeywell Electronik 15 Recorder. The temperature probe is at a depth of approximately 3 metres below the sea surface and the instrument accuracy is believed to be ± O.loC.

Each ship is equipped with a Plessey Model 6600-T thermosalinograph which is used, on Line P, for continuous recording of surface temperatures and salinities from the ship's seawater loop. The temperature probe is mounted at the seawater loop intake (approximately 3 metres below the surface) and the salinity probe and recorder are situated in the dry lab. The accuracy of this instrument is believed to be ± O.loC for temperature and ± 0.1%0 for salin­ity.

STP profiles were taken with a Plessey Model 9006 STP system.

COMPUTATIONS

All hydrographic data were processed with the aid of an IBM 360 com­puter. Reversing thermometer temperature corrections, thermometric depth calculations, and accepted depth from the "depth difference" method were computed. Extraneous thermometric depths caused by thermometer malfunctions are automatically edited and replaced. A Calcomp 565 Offline Plotter was used to plot temperature-salinity and temperature-oxygen diagrams, as well as plots of temperature, salinity, and dissolved oxygen vs loglO depth. These plots were used to check the data for errors.

Missing hydrographic data were obtained using a weighted parabolas interpolation method (Reiniger and Ross, 1968). These data are indicated with an asterisk in this data record.

Data values which we suspect but which we have included in this data record are indicated with a plus. These data have been removed from punch card and magnetic tape records.

Analog records from the salinity-temperature-pressure instrument have been machine digitized, then replotted using the Calcomp plotter.

Digitization was continued until original and computer plotted traces were coincident. Temperature and salinity values were listed at standard pressures; integrals (depths, geopotential anomaly, and potential energy anomaly) were computed from the entire array of digitized data.

5

The headings for the data listings are explained as follows:

PRESS TEMP SAL DEPTH SIGMA-T SVA THETA SVA (THETA) DELTA D

POT EN OXY

B-V PERIOD

REFERENCES

is pressure (decibars) is temperature (degrees Celsius) is salinity (parts per thousand) is reported in metres is specific gravity anomaly is specific volume anomaly is potential temperature (degrees Celsius) is potential specific volume anomaly is geopotential anomaly (J/kg) is potential energy in units of 10 8 ergs/cm2

is the concentration of dissolved oxygen expressed in millilitres per litre is the Brunt-Vaisala period in minutes

Carpenter, J.H., 1965. The Chesapeake Bay Institute technique for the Winkler dissolved oxygen method. Limnol. and Oceanogr., 10: 141-143.

Collins, C.A., R.L. Tripe, D.A. Healey and J. Joergensen, 1969. The time distribution of serial oceanographic data from the Ocean Station P programme. Fish. Res. Bd. Can. Tech. Rept. No. 106.

Reiniger, R.F. and C.K. Ross, 1968. A method of interpolation with appli­cation to oceanographic data. Deep Sea Res., 15: 185-193.

U.S.N. Hydrographic Office, 1955. Instruction manual for oceanographic observations, Publ. No. 607.

LIST OF FIGURES

Figure 1. Chart showing Line P station positions.

Figure 2. Composite plot of temperature vs logIO depth. P-75-9

Figure 3. Composite plot of salinity vs logIO depth. P-75-9

Figure 4. Composite plot of oxygen vs logIO depth. P-75-9

Figure 5. Salinity difference between hydro data and STP. P-75-9

Figure 6. Temperature difference between hydro data and STP. P-75-9

1500 " " 5

5°1 rr------!if --~---t---~---_. ___ .. I "'~ .. "~€y: . ....• SOON c· -._' .: ::,':::".: . .:: ......... ,..

7 6

I I STATION P

I PA elFle o CE,liN

45 oL---==-=LU=4ZS£ I I l_ I I·"~" I ! =--==.s:uws&" ..

. J<:.~;::~:'.:.:}.:..... ... ~ 450 . ~ ... -

1500 1450 1400 1350 1300 1250 1200

Fig. 1 Chart showing Line P station positions.

OCEANOGRAPHIC DATA OBTAINED ON CRUISE P-75-9

(CODC REFERENCE NO. 15-75-009)

THIS PAGE IS BLANK

RESULTS OF HYDROGP~PHIC OBSERVATIONS

(P-7S-9)

(f)

IJJ a:: t-w 2: .. :c ~ a.... w 0

10

TEMPERATURE, C 1.00 q.OO 7.00 10.00 13.00 16.00 5~------~------~~------~------~-------+ 6 7 6 Y

~

;!~ ><

Il 5 S 7 6 Y

~

0

;!~ ><

II 5 {) 7 6 ~

II

~

+ X :x: Z

- 75 - 9 - 8 75 9 15

- 75 - 9 - 20 - 75 - 9 - 27

75 9 311

5~-------r------~~------+-------~ ______ -+

Figure 2. Composite plot of temperature vs logIO depth. P-75-9

(J')

UJ a: I­w :c ..

11

SALINITI p 0/00 30.50 3t.50 32.50 33.50 3ijD50 35.50 5~------~--------~------~ ______ ~ ______ ~ B 7 6 r

2

;!5 ~ >< II 5 B 7 8 r

It 5 e 7 8

Y

It.

~ - 75 + - 75 X - 75 x - 75 Z 75

~ r

I r r

- 9 - 8 ~ I

- 9 - 15 ~ - 9 - 20 F - 9 - 27

9 34

5~-------+------~~------+--------r ______ -+

Figure 3. Composite plot of salinity vs loglO depth. P-7S-9

(I)

UJ a: t-lLJ :E:

:r: I-0.. W Cl

12

eJX,(GEN. ML/L 0.00 2.00 q.OO 6.00 B.OO 10.00 54--------L------~~------~------~--____ _T

B "1 B r

2

~~ ><

Il 5 B "1 6 r

2 c ;!~ ><

c c

II 5 B "1 B r

~~ ><

Il

.&. - 75 - 9 - 8

+ - 75 - 9 - 15 X - 75 - 9 - 20 ){ 75 9 27 Z - 75 - 9 - 34

54--------r------~--------+_------~------_+

Figure 4. Composite plot of oxygen vs loglO depth. P-75-9

THIS PAGE IS BLANK

(I) LLJ II: t-W :E: •

:c t-a.... w 0

14

~XYGEN, ML/L 2.00 ll.oO 6.00 B.oO 10 .. 00 x 0.00

I I , I ! ~I ______ ~ ______ ~ ______ ~ ______ ~ ____ ~

SALINITY, DIDO 3t.5o 32.50 33.50 31.L.5o 35.50 + 30.50

I I I I I !

TEMPERATURE, C t.00 ll.oO 7.00 10.00 13.00 16 .. 00 5~------~------~------~------~------+ 6 7 6 r

2

~a x

II 5 6 7 8

Y

2 0

~S x

Li 5 S 7 B

r

~

t I

* - 75 - 9 - 8

~

Li 5+-------+-------+---~--+_------+_----__+

OFFSHnRF OCEANOGRAPHY GROUP POSITION 50- 0.0 N. 145- 0.0 W HYDROGPAPHIC CAST DATA

REFERENCE NO.. 75- 9- 8 GMT 18 .. 0

PP::-SS

o 9

19

28 46 69

93 lie 139 16?

185 231 277

371 467

"566 783 9a9

1193

1497 1999 2494-2981 3459 3928 4021 4105 4114

TEMP

6 .. 57 6 .. 56 fi,,58

6,,"57 6 .. 57 6 .. 57 6.,57 4",66

4 .. 83 5 .. 03 4,,74 4 .. 34

4 .. 13 3,,94 3,,80

3 .. 59

3 .. 22 2 .. 89 2 .. 63 2 .. 31

1" 96 1., 73

1" 60 1,,53 1" 52 1,,52 1,,52 1 .. 52

SAL

32 .. 6l~2

32 .. 640

32 .. 64 1

32 .. 634 32 .. 633 32 .. 63 9 32., 633 32 .. 927 33,,352 33 .. 761 33 .. 810 33 .. 835 33,,885 33 .. 9R8 34" 076 34 .. 158 34 .. 189 34., 371 34 .. 44?

34 .. 517 34 .. 59C 34 .. 63 7 34,,672 34 .. 678 34 .. 682 34 " 68 1.j.

34,,679

34" 678*

DEPTH

o 9

19

28 46

69 92

115 138 161 184-229 275 368 463 561 776 979

1181

1481 1975 2461 2938 3405 3863 3954 4035 4044

SIGMA T

25 .. 645 25 .. 644 25 .. 643 25 .. 638 25.,638 25 .. 642 25" 638 26 .. 096 26 .. 414 26,,715 26 .. 786 26 .. 850 26 .. 911 27 .. {H3 27 .. 097 27 OJ 1.83 270243 27",418 27",497 27,,584 27,,671 27.,726 27,. 764 27 .. 774 270778 27.,779 27 .. 775 27.,775

SV/\

235 .. 6 23507 236 .. 0 236 .. 6 236 .. 9 236 .. 7 237 .. 5 193 .. 7 1 6309 135 .. 7 129 .. 0 123,,3 117,,7 108 .. 8 101 .. 6

9400 89 .. 3 73 .. 6 66",6

59 .. 1 51",8 47 .. 3 44 .. 6 44,,5

45.,3 45 .. 5 46 • .1 46 .. 1

THETA SVA DELTA

6 .. 57 6 .. 56 6058 6 .. 57 6,,57 6 .. 56 6 .. 56 4 .. 65

4" 82 5,,02 4 .. 73 4 .. 32

4 .. 11 3 .. 91 3 .. 77 3 .. 55 3 .. 17 2 .. 82

2 .. 55 2 .. 21 1 .. 82 1 .. ~5

1.,38

1 .. 26 1., 20 1 .. 19 1 .. a 8 1 .. 18

{THETA} D

235 .. 4 235.,4 235 .. 6 235,,9 236 .. 0 235 .. 6

235 0 9 19204 162 .. 2 133 .. 6 126 .. 8 120 .. 9 115 .. 0 105 .. 3

97 .. 2 89 .. 0 83 .. 2

66 .. 5 58 .. 9 50 .. 5 42 .. 1 36 .. 1 32 .. 8

31" 6 30 .. 9 30 .. 6

31,,0 31 .. 0

0 .. 0 0 .. 21 0 .. 45 0066 1" 09 ]..,64 2 .. 20 2 .. 70 3,,11 3 .. 46 3 .. 76 4 .. 33 4 .. 89 5 .. 95 6 .. 96

7 .. 92 9 .. 91

11 .. 58 13 .. 00 14 .. 91 17 0 66 20,,09 22 .. 32 24 .. 43 26 .. 54-26,,96 27 .. 34 27 .. 39

DATE 9/12/75

POT .. EN

0.0 0 .. 01 0 .. 04 0 .. 10 0 .. 25 0 .. 58 1.04 1 .. 57

2 .. 11 2 .. 64 3 .. 17 4 .. 38 5 .. 83 9 .. 33

13 0 64 18 .. 71 32 .. 46 47 .. 50 63,,33 89 .. 39

138 .. 51 194 .. 34 .256.,34

325 .. 85 405 .. 13 422 .. 30 438 .. 06 439 .. 84

OXY

6 .. 89

6<997 6 .. 94 6,,93 6 .. 94 6 .. 96 6 .. 94 6 .. 73 5 .. 54 4 0 25 3 .. 78 2 .. 93 2,,14 1 ., 3 1 1 .. 01 0.,92 0 .. 78 0 .. 60 0 .. 63 0 .. 83 1 .. 49 2 .. 12 2 .. 61 3,,04 3,,29 3 .. 28 3 .. 31

SOUND

1474" 14740 1475 .. 1475" 1475 .. 1475 .. 1476 .. 1469., 147C .. 1472 .. 1471" 1470 .. 1470., 1471 " 14720 1473. 1475 .. 1477 .. 1480., 148.0,,,

1491 .. 1498 .. 1506" 1514 0

1522 .. 1523 .. 1525 ..

1525"

f-' \.J1

(1') UJ a:: I-lIJ ::E: ..

:::c t-a... W Cl

16 .

eJXYGEN, ML/L 2.00 It.DO 6.00 8.00 10.00 x 0.00

I I I I I I~----~~----~~----~--------------~ SALINITY, ·0/00

3t.50 32.50 33.50 3l!.50 35.50 + 30.50 I I I I I I

A TEMPERATURE, C l.00 Ll. 00 7.00 10.00 13.00 16DOO 5~------~------~--------------~----~ S 1 , 2

~S ><

II 5 S 1 6

~

2 CJ

~S x

o CJ

II 5 S 1 B

~

~3 x

II

* - 75 - 9 - 15

5+-----~+-------+-------+-------+-------+

OFFSHORE OCEANOGRAP~Y GROUP pnSITION sn-," 0,,('1 N. 145- O~O \II!

HYDRCGPAPHIC CAST DATA

REFERENCE NO", 75- 9- 15 GMT 17 .. 3

PRESS

o 9

19 28 4fl

71 96

~ 20 1 4 (~

168 1 92

24·2 290 388 L~8 7

5A5 678 Fl72

1068 1363 1860

2.362 2866 3371 3874-3q74

4065 4074

TEMP

6 .. 53 6,,'Q 6" 51", 6.,51 6,,5],

6 .. 50 6,,24

t~ '" 5 0 '5" ~ 5 t~ ~ 9:3 l~" 85 (.:,,,,50

4<. E:i 3,,9~

3",77 3.,56 3.,38

3,,05

2<1'76

2" 4f.j. 2,,07 1",7Q 1 Q 65 1,,54

1,-,52 1 .. 52 1 .. 52

1 s 52

SAL

32" 62 8 .-::12.,628 32,,62,3

32., 62.., 32,,62Ej

32.,63 C 32. 6 <;H(,

32" 898 ]3e 37 7 33,,712 33.790 33~81q

33~871

33.9Se 34.08B 34.178 34e174 34,,348 34,,423 34 .. 481 34-.559 340617 34®646 34,,686

34e674

34~692

34G694 34,,683*

DEPTH

° 9

19 28 48 71

95 1 19 1 b,3

167 191 2/-1-0

288 385 f.!,83

580 672

861.l-

1057 13'.9 1838

2'331 2825 3319 3810 3<;0P.

3996 4005

SIGMA T

25",639 25" 6.!J;·1 25 .. 638 25", 64·!

25,,641 25",6'f-4 25",728 26,,090 26,,398 26~688

26",T58 26.,820 26 .. 898 27",O!3 27,d09 27" 202 27,,216 27'" 385 27",4.71 27,,5'~5

27" 637 27',,706

27.,739 27 .. 780 27,,771 27,,786 270779 27,,779

SVA

2.3601)1 236.,1 236",6 236,,3

2361>5 .236,,6 228,,8 ~ 94·.,3 165",6

~38 .. 3

131,,8 126,,3 119,,1

109" 0 100.,5

92,,4· 91" /.;. 76,,2 68,,7

62,,6

5ll· '" 9 49,,1 <;·6 <> 8

4·3" 8 45 .. 8 {.,4" 8 .{~5" 6 <.5,,6

THETA SVA DELTA

6<\\53 6 .. 51 6,,54

6 e 51

6" 5l 6" e~9 6,,23 tJ,,, 49

5,,14 4 .. 92 <4 '" 8l~ 4", ~·8

'.j." 13 3,,91 3<l)74

3" 52 3",33 2",99 2,,69 2,,35 1 ~ 9'!· l @ 62 1 '" (~t~ 1" 28 1 ,,21 1., 20

1" 19 1 9 19

{THETA} D 235,,9 235 .. 6 236 .. 0 235 .. 7 235",6 235 .. 4 227 '" (~

193",0 163,,7 136",2

129,,5 123,,6 116 .. ],

105.,J

96 .. 1 87 .. 2 85" 8 69,,7

61",4 54,,4 l~50l:+

38,,7

35,,2 31", 1 31 .. e 30., ], 30 .. 6

3097

0,,0 0",21 0 .. 45 0 .. 67 1" 1 4 1 .. 69 2026 2 .. 77 3 .. 21

3 .. 57 3 .. 89 4-,,53 5,,12 6 m23 7",27 8 .. 21 9,,06

10.,70

12" 11 14 .. 04 16 .. 93 19,,53

2 X" 9.3 24,,21 26.,48 26 .. 9 L}

27 .. 3 {~ 27",39

DATE 15/12/75

POT .. EN

0 .. 0 0,,01 0 .. 0 t;.

0.,10

0 .. 28 0,,62 1,,10 1,,66 2,,25 2",83 3 ot~ 2 (~" 8:5 6044

1 0 ,,28 ll~,.90

20'l> 0 3 25,,5J 38",4- J. 52,,30 76",24

123,,88 179,,58 2 t .3,,82 316,,01 400",24 1+18 .. 4-1 435,,13 436087

OXV

6.,.l38 6,,95 6 .. 9{j.

6 0 93 6 .. 92

6 G 87 6",84-

5,,7'9 4· .. 32 3,,96

2.,26 1 ,,3t{-1,,02 0" 7/-1-

0,,63 0,,62 0,,71 1" 33 1,,91 2 .. 4·7 3",01

3027 3 .. 30

SOUND

1474., 1(;74.,

1474" 14 i'4 .. 1475., l475., lL,.75G 1 4}68" 1472 Q

lL~72.,

1472",

147'1 G

1 ,o,c 71 ., lL}72",

1. /.J.73 '"

1473" 1 47 l l·"

lt~76"

J. ll-78 " 1482", 1489",

1496 " 1 504" 15120 1521 .. 1522 .. 1524", 15240

l-' -.J

<n ~ ~ t-W =c •

JC ~ D-LU C)

18

X ~XYGENp ML/L OeoO 2.00 ~.00 6.00 6.00 10.00 ~I------~!------~'------~I------~I------~I

+ SALINITY. DIDO 30.50 3t.5o 32.50 33.50 3~.5o 35.50 ~'------~I------~I------~'------~'------~I

A TEMPERATURE~ C 1.00 ~.OO 7.00 10.00 13.00 16.00 54-------~------~----~------~------_+ S 7 6 r

2

~s ><

q

5 B 7 6 ~

2 o ~a ><

~

5 6

* - 75 .... 9 .... 20 7 8 ~

q

5+-------+-------~----~-------+-------+

OFFS HORE OCEANOGRAPHY GROUP REFERENCE NO. 75- 9- 20 DATE 22/12/75

POSITION 50- 0.0 N, 145- 0.0 w GMT 18.9 HYDROGRAPHIC CAST DATA

PRESS TEMP SAL CEPTH SIGMA SVA THET .A. SVA DELTA POT. OXY SOUND T (THETA) D E1\I

0 6.17 .32.644 0 25.697 230 .. 6 6 .. 17 230.4 0 .. 0 0.') 6.93 1473 " 10 6. 12 32.647 10 25 .. 706 229.9 6.12 229.6 0.23 0.01 6 .. 96 1473. 20 6.14 32.647 20 25.703 230.3 6 .. 14 229 .. 8 C .. 46 0 .. 05 6.95 1473. 3C 6.12 32 .. 647 30 25.706 2.30 .. 1 6 .. 12 229 .. 6 Q.,69 0.11 6 .. 98 1473. 50 6.12 32 .. 657 50 25 .. 713 229.6 6 .. 12 228 .. 8 1.16 0.3') 6.96 1473. 75 6.12 320652 75 25 .. 710 230.3 6 .. 11 229. 1 1 .. 74 () .. 67 6.97 1474 ..

100 5.99 32.697 99 250761 225 .. 7 5 .. 98 224.2 2.30 1.17 6.93 1474. 125 5.08 33 •. 29: 124 26 .. 339 170.9 5 .. 07 169 e 3 2.80 1.74 5 .. 93 1471 •

f-' 14<; 5.04 33 .. 726 148 26 .. 686 138.3 5.03 1.36 .. 4 3 .. 17 2.·25 4.50 1472. '.D

173 4.85 33 .. 801 172 26.767 130 .. 8 4 .. 84 128.7 3 .. 49 2 .. 78 3 .. 92 1472a 197 4.60 33.823 19F. 26.812 126 .. 7 4.59 124.4 3 .. 80 3.,7 3857 1471. 247 4 .. 29 33.858 245 26 .. 873 121 .. 2 4.27 11806 4041 4.75 2072 1471 • 295 4.06 33.914 29 ] 2t .. 942 115.0 4"C4 1 1 2 • 1 4.98 6.1 ., 1 .. 98 147C. 395 3.88 34.0GB 392 27.035 106.9 3.85 103.2 6.09 10 .. 22 1.27 1471. 499 3 .. 74 34.094 495 27 • .117 9908 3 .. 70 95 .. 3 7 .. 16 15" 1 1 0.90 1 4 73 .. 608 3.54 34.160 603 27.189 93.7 3.50 88.4 8 .. 21 21.06 0.99 1474. 807 3. 21 34024<; 800 27,,291 8489 3.15 7·'3" 6 9.99 33.91 0.68 1476.

1 0 1 1 2.1'39 34.393 1001 27 .. 435 72.0 2.82 64.9 11.58 48.61 0.59 1478. 1213 2.62 34.443 1 201 27,,499 66 .. 6 2 0 54 58 .. 7 12.96 64.45 0.63 148C" 1519 2 .. 31 ,4.517 1502 270584 59.2 2" 21 50.5 14.89 91.0'3 0!,!33 1484 .. 2027 1" 96 34.594 2002 27.674 51 .. 6 1 .. 82 41 .. 8 17 .. 68 141.44 1 .. 53 1491 • 2537 1.72 34.638 2503 27 .. 728 47 .. 3 1 a 54 36.5 20.18 199.74 2.15 1499. 3054 1.59 34 .. 665 3009 27 .. 759 45 .. 2 1 .. 36 33.3 22.56 267.45 2.71 1507. 3578 1 .. 53 34.686 3521 27.780 44.3 1 .. 25 30.9 24.89 346.18 3.08 1516. 411 1 1.52 34.676 4041 27 .. 773 46.2 1 .. 1 8 31.2 27 .. 32 441.83 3.31 1525. 4208 1.52 34.690 4136 27.784 45.6 1 D 17 30 .. 1 27 .. 77 460 .. g3 3.26 1526. 4219 1.52 34 0 694 4146 27.787 45 .. 3 1. 17 29.7 27,,82 462.94 3.27 1527.

(I) UJ a: ..... w :E: ..

::I: t-e... w Cl

20

OXYGEN, MLIL 2.00 'l.00 6.00 6.00 10.00

I I I I , x 0.00 ~I ______ ~ ____________________ ~~ ____ ~

SALINITY, DIDO 31.50 ·32.50 33.50 3L!.50 35.50 , , « « , + 30.50

I

TEMPERATURE, c· 'l. 00 . 7.00 10.00 13.00 16.00

A t.oo 5+-------~------~------------~------~ 6 1 6

~

2

;!S ><

II 5 S 1 6 ~

2 0

;!S ><

o c

It 5 S 1 6

Y

;!S ><

q

* - 75 - 9 - 27

5+-------+-------~----~-------+-------+

OFFSHORE OCEANOGRAP~Y GROUP POSITlnN 50- 000 N, 14~- OeO W HYORCGRAPHIC CAST DATA

REFERENCE NOo 75- 9- 27 GMT 18.4

PRE'S';

o 1 (\ 1 q

29 49 71 99

1 2 q

1 ,~ '~:,

1 74· 1 9 r.~

2'::,1 302 404-505 604 787 983

1180 1476 1971

2468 2965 3463 3959 4048 40")8

TEMP

5 .. 96 5,,95 5,,97 5 .. 97 5 .. 96 5 .. c)6

5 .. 88 4 .. 94 (1 .. 92

t~" 97 4 .. 7{~

4,,"33 4,,12 ],.94

3 .. 75 3 .. 54 3.,25 2,,93

2.,66 2035 1 .. 97 1 e 7 t~

1 ~ 6 1

1 " "i3 1" 52 1" 52 1,,52

SAL

32 .. 664 32,,664 32" 67 0 320659 320664 32 .. 662 32,,674 33 .. 285 33,,568 33 .. 788 33,,809 33 .. 83 6 33 .. 894 33,,982 340110 34 .. 139 34 .. 248

34 .. 373 34" 43 7 34 .. 504 34 .. 586 34 0 637* 34 .. 666 :'14 .. 680 34.,684-

34 .. 693* 34 .. 694

DEPTH

o 10 19

29 49 73 98

123 14B 173 198 249 300 401 501 599 780 <;74

1168 1460 1947 2435 2922 3409 3893 3980 3990

SIGMA T

25 .. 739 25 .. 740 25,,742 25" 734 25,,739 25 .. 737 25 .. 756 26,,349 26.,575 26 .. 743 26,,7e6 26 .. 852 26" 920 27 .. 008 27 .. 129 27,,172 21.,287 27 .. 416 27,,491 27 .. 571 27.,667 27 .. 726 27",758 27 .. 776 27 .. 779 27 .. 787 21 .. 787

SVA

226 .. 7 226 .. 6 226 .. 6 227 .. 5 227.3 227 .. 6

226 .. 1 1.69 .. 9 148 .. 8

133,,1 129,,3 123 .. 3

117 .. 1 109.,6

98 .. 8 95 .. 2 85 .. 3 73,,8 6792 60 .. 4 52 .. 1 47,,3 45 .. 1 44 .. 4 45 .. 3 44,,9 44.,9

THETA SVA

5,,96 5",<15 5.,97 5 .. S7 5,,96 5 .. 95 5 .. 87 4 .. 93 4" 91 4 .. 96 4 .. 72 4 .. 31 4 .. 10

341 91 3 .. 71 3 .. 50 3 .. 20 2,,86 2",58 2025

1 .. 83 1" 57 1 .. 39 1 .. 26 1 .. 20

1" 19 1 .. 19

(THETA) 226 .. 5 226.3 226 .. 1 226 .. 9 226.4-226,,5 224 .. 7 168 .. 4-147 .. 0 131 .. 0

126 .. 9 120.1 114 .. 1

105 .. 7 94 .. 2 90 .. 0 79.1 66 .. 8 .59& 5

51 .. 9 42",6 36,,7 33 .. 4 31 .. 5 30 .. 7 30 .. 0 29 .. 9

DELTA D

0 .. 0 0.23 0 .. 43 0 .. 66 1.12 1 .. 67 2 .. 25 2 .. 75 3 .. 15 3 .. 50

'3 .. 63 4,48 5 .. 09 6 .. 25 7.,30 8 .. 25 9 .. 91

11 .. 47 12 .. 84 14,,72 17 .. 49 19 .. 94 22 .. 22 24 .. 44 26 0 68 27 .. 09 27 .. 13

DATE 29/12/75

POT. EN

0 .. 0 0 .. 01 0.04 0.10 0 .. 28 Oe6.3 1.14-1 .. 70 2,.25 2 .. 83 3 .. 46 4 .. 95 6 .. 69

10 .. 85 15 .. 70 21 .. 12 32 .. 86 46 .. 88 62 .. 08 87 .. 55

136 .. 06 191 .. 56 254 .. 85 327 .. 58 412 .. 35 428",79 430 .. 70

OXy

6 .. 93 6 .. 99 6 .. 98 6 .. 98 6 .. 99 6 .. 99 6 .. 96 5.85 4 .. 84 4 .. 21 3.76 2 .. 95 2 .. 16 1 .. 44 0 .. 92 0 .. 93 0 .. 79

0,,59 0 .. 59 0.,81 1 .. 50 2 .. 09 2 .. 63 3 .. 01 3,,32 3,,28 3 .. 30

SOUND

14720 1472. 1472. 1472. 1473 .. 1473 .. 1473 .. 1470 .. 1471 .. 1472 .. 1472 " 1471 .. 1471 .. 1472 .. 1473 .. 1474 .. 1476" 1478", 1480 ..

1483 ..

1490 " 1498 .. 1505" 1514., 1522 .. 1524" 152 101- "

N f-'

(/)

LLI a: I-lLJ E •

:J: ...-. Q....

W Cl

22

ClX,GEN, ML/L 2.00 1l.00 6.00 6.00 10.00 x 0.00

I I , I I I~'----~~----~~------------~--------

+ 30.50 SALINITY. DIDO

3t .. 50 32 .. 50 33.50 3L!.50 35.50 I , , I I ,

A TEMPERATURE, C t.OO 'l.00 7.00 10.00 13 .. 00 16.00 S+-------~------~------~------~------+ S 1 6 r

2

~S x

Il 5 S 7 6 r

2 CJ

;!S ><

c o

It 5 S 1 6 r

~S x

* - 75 - 9 - 3ll

t + .Il

ST-------+-------+-------+-------+-------+

OFFSHORE OCEANOGRAPHY GROUP REFERENCE NO .. 75- 9- 34- DATE 61 1/76 POSITION '50- 0 .. 0 N. 145- 0",0 w GMT 1707 HYDROGRAPHIC CAST DATA

PRESS TEMP SAL CEPTH SIGMA SVA THETA SVA DELTA POT" OXY SOUND T (THETA) D EN

0 6 .. 24· 12 ",62 0 0 25 .. 669 2.33 .. 2 6 .. 24 233 .. C C .. 0 0,,0 6 .. 92 1473 .. 9 6" 23 32 .. 61 q 9 25,,670 233,,3 6",23 233 .. 0 0.,21 0 .. 01 6099 1473 ..

19 6,,25 32062e 19 25 .. 671.1- 233 .. 0 6 .. 25 232,,6 011045 0 .. 04- 6 .. 97 14-73 .. 28 6 .. 23 32 .. 626 28 25 .. 675 233,,0 6" 23 232 .. 5 0 .. 66 0 .. 09 6 .. 98 1473 .. 47 6 .. 24 32" 62 7 47 25 .. 675 233 .. 2 6 .. 24 232.,5 1 .. 10 0 .. 27 6 .. 98 1474., 71 6,,21 32.,626 71 25,,678 233 .. 3 6,,20 232 .. 2 1.67 0 .. 61 6,,99 1474 .. 97 5 0 61 32 .. 837 96 25,,917 210.,7 5 .. 60 209 .. 4- 2 .. 24- 1 .. 10 6 .. 88 1472 ..

121 5 .. 03 33,,433 120 26.,(~56 159 .. 8 5002 158 .. :3 2,,68 1 .. 59 5 .. 52 1471 '" N

146 5,,09 33,,760 1 t~ 5 26",707 136",3 5 .. 08 134 .. 3 3,,05 2 .. 09 4,,42 1472 .. w

170 4 .. 85 33",820 169 26",782 129,,3 4",84- 127.,2 3 .. 37 2 .. 60 3 .. 82 1472 .. 195 4 .. 53 13 .. e:32 194- 26 .. 827 125 .. 2 4 .. 52 123" 0 3 .. 69 3,,20 3 .. 40 1471 " 241: 4" 21 33,,857 244- 26 .. 881 :1.20 .. 4 4,,19 117,,8 4",31 4,,59 2955 1470 .. 297 4,,05 33",908 295 26.,938 11503 4 .. 03 112 .. 4 4,,91 6,,27 1 .. 91 1470 .. 399 3 .. 86 34,,031 396 27 .. 055 105 .. 0 3 .. 83 101,,2 6 .. 04 10",25 1 .. 13 1471 .. 500 3 .. 70 311-.,160 496 27 .. 173 94,,5 3 .. 66 89 .. 9 7.,011- 14 .. 84 Oe83 1473" 600 3 0 52 34,,181 595 27,,208 9108 3 .. 48 86 .. 7 1 9 97 20,,04 0 .. 72 1474·<, 778 3., 21 34 .. 233 771 27",279 85 .. 9 3 .. 16 79,,9 9 .. 55 31 .. 22 0066 1475" 974 2,,89 34 0 383 965 27 .. 427 72",6 2 .. 82 65",7 11" 11 45007 0 .. 53 1477 ..

1173 2 .. 63 34·,,(~49 1161 27,,503 66,,0 2 .. 55 58 e 4 12.:.48 60 .. 04 0 .. 56 14800 1471 2 .. 31 34,,528 1455 27 .. 593 58",2 2,,21 49,,7 141:132 84,,82 0 .. 73 1483 " 1972 1 <> 96 34,,596 1948 27",676 5 n .. 2 1", 82 41. .. 7 17002 132,,39 1 0 41 1490" 2476 1,,74 34 .. 643* 2443 270730 4609 1 .. 56 36 .. 3 19,,48 188.,14- 2,,09 1498., 2982 1 .. 60 34'0672 2939 27 .. 764 .tl·4",6 111>38 32 .. 8 21 6 79 252.,26 2,,61 1506" 348e 1 G 53 34.,688 3434 27",782 tf3 .. 9 1 .. 26 30 .. 8 21~,,02 325<1>82 3,,00 1514" 39g3 1,,52 3l!·,,696* 3926 27 .. 789 44 .. 6 1" 20 29",8 26,,25 410 .. 82 3 .. 27 l523., 4084 1" 52 3./~c698* i~O 15 27",791 '.4" 7 1",19 29 .. 6 26 0 65 427,,59 .1524." 4094- 1",52 340698 4025 27.,791 1.".14",7 1,,19 29,,6 26.,70 '-1·29 .. 51 3,,30 1524 "

THIS PAGE IS BLANK

RESULTS OF STP OBSERVATIONS

(P-7S-9)

200

lIDO

,....., en a::: w 600 l-W L ........

I t- 800 CL W 0

1000

1200

l\!OO

26

SRLINITY DIFFERENCE _0/00 -.08 -.Oll o

1/

II .. II

111 111 ..

1/

.Oll .08 .12 .16

... II .. "'.

111 11

-" It

111

111 11 11

If

.. 11

CORRECTION APPLIED <I;

TO STP PLOTS

III

11

•

Figure 5. Salinity difference between hydro data and STP. P-75-9

27

TEMPERRTURE DIFFERENCE pC - .. 04 o .04: .. 08 .12 .16

III III 18 III

,. iii

III WIlli II

11 11 II 81 III 200 III III l1li

WI \Ill l1li

II \III. w· II l!00 III I II

11 If

II if (f)

a:: w 600 .,;e ~ CORRECTION APPLIED W ""l

:E II TO STP PLOTS --..;

J: \Ill 1I1II I- 800

II (L

W III

0

\III

1000 III

IJI/

1200

II

1400

iii 111 It

Figure 6. Temperature difference between hydro data and STP. P-7S-9

.. w a::: :=) (J1

o

75

~225 a: 0....

300

28

TEMPERATURE, o ~ 8

REF. N~ •. 75 - 9 - 1

MO.-12 DAI-6 GMT-3.8

35

29

OFFSHORE OCEANCGRAPt-y GRCUP REFERENCE NO. 75- 9- 1 DATE 6/12/75 POSITION 48-33.0N. 125-:':3.0W GMT 3.8 RESULTS OF STP CAST 79 POINTS TAKE" FF<Ot-.l AN.ALOG TRACE

PRESS TEMP SAL DEPTH SIGMA SVA DELTA FOT .. SOUND T D EN

0 8 .. 55 31.35 0 24.36 357.9 0.0 0.0 14800 10 8.97 31.72 10 24.58 336.8 0.35 0 .. C2 1483" 20 9" 21 ~2 .. 12 20 24.e6 310 .. 8 0.67 0.07 14840 30 9.12 32 .. 19 30 24.93 304&4 0.<;8 0.14 1484. 50 8.58 32.66 50 25.36 263.4 1.56 0.38 1483. 75 7.94 33.17 75 25.87 215.0 2.14 011>75 1482.

DEPTI-! TEMP SAL DEPTh TEMP SAL

O. 8 .. 55 31.35 46. 8.8E 32,,38 1 .. 8.59 31.36 47. 8.84 32.40 2. e.59 31.3 E 480 8.72 32.59 3 .. 8.63 31.3e 49. 8.70 :32.E3 4. 8.70 31.46 50. 8 .. 68 32.66 5 .. 8,,71 31.48 ~1. 8,,66 32968 6. 8 .. 82 31.54 52. 8.59 32.69 7. 15'.90 31.63 53. 8 9 56 32974 8 0 8,,91 31.67 54 .. 8.4<; 32 .. 79

9" Eh95 31.69 55. 8 .. 41 32 .. 84 10. 8 .. 97 31 .. 72 57 11 8tl 2 <; 32.90 11 • 8098 31.78 59. 8022 "22 .. <;6 12. 9.03 31 .. 83 to. 8.1 9 ·33000 13. g .. 03 31 .. 84 el .. 8 .. 1 e 33 .. C C 14. 9 .. 08 32 .. 01 63 .. 8 .. 10 33 .. 00 15. 9 .. 13 32.0'5 (54 .. 8" 04 33 0 06 17 .. 9,,17 32.08 6640 8 0 00 3.3 .. 11 18 .. 9,,18 32" 0<; cs .. 7 .. 99 33 .. 15 19 .. 9 .. 19 32 .. 10 t9 41 70ge 33" 15 2 0 .. 9 .. 21 32 .. 12 70" 7 .. 97 33 " ie: 21 .. 9,,22 32 .. 12 71. 7 .. 96 33 6 17

22" 9 .. 23 32.13 72. 7 .. 9c 33 .. 17 23 .. <;92'3 32.12 74 .. 7.,95 33617 25 .. 9.,21 32 .. 13 76", 7 .. 94 33ele 26 .. 9 ... 19 32 .. 14- 78,. 71191 33 .. 23 27" 9 .. 17 32 .. 11: eo" 7086 33027 28 0 ge~6 32 .. 17 81 .. 7085 33028 30 .. q .. 12 32.19 82 .. 7 .. 81 33 .. 31 31 .. 9,,10 32020 E'3 .. 7 .. 79 33 .. 32 3~ .. 9,,09 32.21 E'4 " 7 .. 75 33e39 33& 9,,08 32.22 E5. 7,,70 33 .. 40 34" 9 .. 06 32 .. 22 86 .. 7&67 33942 35 .. 9004 32 .. 2~ 87 .. 7 .. 66 33944 37 .. 9 .. 03 32 .. 23 E'9 o 7 .. 6:: 33 .. 45 :3 P e Q .. 02 32,,23 90 .. 7,,1')4 33 .. 46 40 0 ~e99 ?2 .. 2!: 91 .. 7,,(3 33047 ~2e >'1"Q9 32 .. 2E "3 D 7052 33 .. 4E 43 .. ~" 9 5 3 2 .. 3C <;70 7 .. 50 '3304<;

4 t~ €I ;;~ .. 9 i 32 .. 30 <;'3. 7 .. 60 33.4<; t.. ::: o..,qe 32.:5

w a: :::J en

o

75

~225 a: (L

300

o

30

TEMPERRTURE,C 4 8 12 16

REF. N~. 75 - 9 - 2

48-38eO N 126-0.0 ~

M~.-12 DAi-6 GMT-5.8

31

OFFSHOR~ OCEANOGRAPrY GROUP ReFERENCE NO. 75- 9- 2 DATE 6/12/75 POSITION 48-3800N 9 12£- o.o~ GMT 5.8 ReSULTS OF STP CAST 35 POINTS TAKEN FROM ANALCG TRACE

PRESS

o 10 20 30 50 75

DEPTH

o. 3. 4 .. 6 .. 8,.

9" 10 .. 12. 13 ..

15 .. 20e 23..,

250 3210 33.

41 " 43 .. 46 ..

TEMP

8.69 9 .. 16 9.49 9033 9 .. 17 8.'59

TEMP

8 0 69

8 .. 69 8.72 8 .. 82 8 0 88 8 .. 96

9 .. 16 9.32 9 .. ,3 9 0 46 <;;.49 9 0 48 <; .. 41 ;,,30

9,,30

9 .. 25 9 .. 22

'1 .. 20

DEPTH

o 10 20 31 51 76

DEPTH TEMP

480 9.19 ~OO 9017 51 • 9.16 54. 9.05 58. 9 .. 00 £2. 8.97 £4. 8.94 E8 .. 8.90 750 8 0 59 76. 8 0 53 78. 8.36 79" 8.23 80 .. 8.21 El. 7.97 83 e 79 7 5 84. 7.94 e8 .. 7.6c

~

w a:: :::> U1

300

~900 a:. CL

1200

32

TEMPERATURE, C 4 8 12 16

1 I

REF. NO. 75 - 9 - 3

MO.-12 DAY-6 GMT-S.S

35

33

OFFSHORE OCEANOGRAPhY (ROUP REFEHENCc NO. 75- 9- 3 CATE 6/12/75 POSITIO~ 48-42~ON, 12t-40.0W GMT 8 .. 5 RESULTS OF STP CAST 348 PO 1I'11S TAKEN FROM ANALOG TRACE

PRESS TEMP SAL DEPTH SIGMA SVA OEL1A ~OT. SOUND T D EN

0 9.40 31.2<; 0 24,. 1. e 374,,7 0.0 0 .. 0 1483,. 10 9 0 37 31.29 10 24. 1 9 374,.7 0.37 0" 02 1483 .. 20 ge85 31.58 20 24.34 360.3 0 .. 74 Q,,07 1486. 30 9.98 32. ° e 30 24 .. 70 325 .. 8 1" 08 0,,16 14870 50 9 .. 59 32 0 41 50 25,,02 295.6 1.71 0.42 1486. 75 7.63 32 .. 87 75 25 .. 68 233 .. 3 2.37 0.84 148O ..

100 6 0 82 33.34 99 26.16 188.0 2.89 1.30 1478. 125 6.93 33.63 124 26.37 168.1 3 .. 33 1.81 14790 150 6",73 33.,85 149 26.57 149 .. 5 3.13 2.36 1479" 175 6.47 33.90 174 26.65 142.7 4.10 2.<;6 1478. 200 6.16 33.93 199 26.71 136.9 4.44 3.63 1478. 225 6.04 33.94 223 26 .. 74 135.0 4 .. 78 th 37 1477" 250 5.86 33.97 248 26.78 130.8 5.12 5.17 1477. 300 5059 34.00 298 26.84 1 2~. 8 5",76 6 0 97 1477" 400 5" 22 :34.06 397 26,. 93 118.1 6 .. 97 11 .. 28 14770 500 4.73 34.15 496 27 .. 05 1 C60 8 8.09 16.40 1477. 600 4.40 34" 18 595 27 .. 12 101.5 9.12 22 .. 21 14770 800 3.93 34" 31 793 27,,27 88 .. 3 11.01 ~5066 1479.

1000 3.47 3 4 0 4 0 991 27.3<; 78.0 12.66 50.74 lt480. 1200 3 .. O~ 34.47 1188 27 .. 49 68 .. 9 141'1 14 c7 e24 1482.

.. w a: :::J (f1

o

300

~900 a: (L

1200·

34

TEMPERATURE, 048

MOG-12 ORY-6 GMT-12.S

35

35

OFFSHORE OCEANOGRAPHY GROUP REFERENCE NO. 75- 9- 4 D.ATE 6/12/75 POSITION 48-4c.ON, 127-40.0\'1 GMT 12.5 RESULTS OF STP CAST 366 POINTS TAKEN FROM ANALOG TRACE

PRESS TEMP SAL DEPTH SIGM~ SVA DELTA FOTe SOUND T 0 EN

0 8 .. 53 32.03 0 24.1:<; 30790 0.0 0.0 1481. 10 8.52 32003 10 24.8<; 307.2 0.31 0.02 14818 20 8.'55 32011 20 24.95 301.9 0.61 0 .. 06 1482. 30 8 .. 50 32.3E 30 25.15 282.8 00 gO 0014 1482. 50 8.13 32 .. 45 50 25.28 271.1 1.45 0.36 1481e 75 7.41 32.99 75 25.81 221.1 2 .. 08 0.75 1479 ..

100 6.97 33 .. 54 99 26.30 17500 2.57 1.19 1479" 125 6. <;;5 33.80 124 26.51 155.7 2.98 1 e 66 1479<11 150 6,,63 33.87 149 26860 146.7 3.36 2 .. 19 1479 0

175 6.43 33.92 174 26.67 141.0 3071 2.78 1478. 200 6927 33.94 199 26.70 137.6 4 .. 06 3.,45 1478. 225 6.06 33 .. 96 223 26.75 134.0 4.40 481e 1478. 2~0 5.93 33.98 248 26 e 78 131eO 4 .. 73 40 <;8 1478. 300 5 .. 64 34.01 298 26 0 84 125,,8 5 0 38 6.78 1477" 400 5.00 34 8 05 397 26.95 116 .. 2 6,,58 11,,08 1476 .. 500 4.60 34.13 496 27.06 106" 7 7.69 16~17 1476", 600 4 0 34 34.1 e 595 27.12 100.9 e 0 73 21e>c;e 147 7 0 800 3.82 34 .. 32 793 27029 86.3 10.61 350:32 1478 9

1000 3041 34 .. 40 C;90 27.39 77 .. 6 12.24 50 ... 25 14804>

1200 3.01 34.46 1188 27.,48 6906 1.3.71 Ec"c9 1482 e

w a: ::l (J1

o

300

~900 a:: 0-

1200

36

TEMPERATURE, 048

REF. NO. 75 - 9 - 5

MO.-12 OAY-6 GMT-12.S

150~ 1 35

37

OFFS~ORE OCEANOGRAPHY GROUP REFERENCE NO. 75- 9- 5 DATE 6/12/75 POSITION 48-510 ON, 12e-40.0'll GMT 12.5 RESULTS OF STP CAST 373 POINTS TAKEN FROM ANALOG TRACE

PRESS TEMP SA.L DEPTH SIGMA SVA DELTA FCTo SOUND T D EN

0 8 .. 24 32.41 0 25.23 274.6 0.0 0,,0 1480", 10 8,,24 32.41 10 254123 275 .. 0 0,,27 0.01 14810 20 e .. ~o 32 .. 41 20 25 .. 24 274 .. 6 0.55 o .. oe 14819 30 8 .. 18 328 4 2 30 25825 273.8 0.82 0 .. 13 1481. 50 8.01 32.4 :3 50 2= .. 28 270 0 6 1.37 o~ 3!: 1480. 75 7045 32 0 81 75 25 .. 66 235.4 2 .. 03 0.77 1479.,

100 6.90 33.22 99 26006 1<;7.9 2,,56 10124 1478 0

125 6.9.3 .33.56 124 26 .. 32 173.3 3.03 1.77 1479. 150 6 .. 94 33 .. 7':: 149 2c .. 47 15903 3.44- 2035 14800 175 6 0 61 33.88 174 26061 14t .. 0 3.82 2&98 1479 .. 200 6.,. 25 33 .. 8<;; 199 26.67 141.0 4.18 3.67 1478 0

225 5.81 33.89 223 26 .. 73 135.6 4.53 4042 1477 .. 250 5 .. 56 33 .. 90 248 26.76 132.4 4.86 5 .. 23 1476. 300 5 .. 33 33.97 2c;e 26 .. 85 125 .. 0 5.50 7003 1476. 400 4 .. 78 34 .. 05 :!97 26 .. 97 ,. 13.8 6 .. 69 11 0 2 C 1475 e

500 4 .. 52 34 .. 1 ~ 496 27.08 10403 7.78 16 .. 25 1476 41

600 4027 34 .. 21 595 27,,1!: <;7 .. <;; 8 .. 79 21 .. 89 1477 .. 800 3 .. gO 34 .. 33 793 27 .. 30 85 .. 3 10 .. 61 34082 1478.

1000 :3" 39 34.;41 9SO 27 .. 40 76$ 6 121921 49 .. 54 1480" 1200 2 .. 913 34 .. 45 1188 27047 70 .. 0 13069 66 .. 04 1481"

.. w a:: :::J (J)

o

300

~900 a: 0....

1200

38

TEMPERATURE, C o 4 8 12 16

REFD NO. 75 - 9 - 6

MO.-12 DAY-8 GMT-19.0

3-5

39

OFFSHORE OCEANOGRAP .... y GROUP REFERENCE NO. 75- 9- 6 DATE 8/12/75 POSITION 49-490 ON, 142-40 .. 0'11 GMT 19.0 RESULTS OF STP CAST 23f' POINTS T.AKEN FROM ANALOG Tt<ACE

PRESS TEMP SAL DEPTH 51 GM A SVA DELTA FeT .. SOUND T 0 EN

0 6.54 32063 0 25 0 64 235.9 0.0 0.0 14740 10 6.54 32.63 10 25.64 236.3 0.24 Oe 01 14740 20 6.54 32 .. 63 20 25.64 236.4 0.47 0.05 1474 .. 30 6.54 32.63 30 25.64 236.5 0.71 O~d 1 1475. 50 6$54 32.63 50 25 .. 64 236.7 1 II 18 0f/30 14750 75 6.53 32.63 75 25.64 237.0 1.77 0.68 1475.

100 5e17 32 .. 80 99 25.94 208 .. 4 2.34 1.18 1470$ 125 4 .. 89 33.03 124 26 .. 15 188 .. 5 2.83 1 .. 74 1470 .. 150 4.95 33.40 149 26.44 161e7 3.27 2.35 14716 175 5 .. 08 33072 174 26.68 139.5 3. £:4 2.';7 1472. 200 4085 33.80 199 26.77 131.1 3.98 3061 1472. 225 4 .. 52 33.84 223 26883 124.8 4030 4.30 1471. 250 4.35 33.85 248 26 .. 86 122 .. 4 4060 5005 1471. 300 4" 12 33891 2 <; 8 26.93 116 0 0 5.20 6 .. 71 1471 .. 400 3 .. 88 34 .. 02 397 27 0 04 106.3 6.::0 10 .. 63 1472,. 500 3075 34 .. i 0 496 27 0 1"2 9908 7 .. 32 154>33 14730 600 3"S3 3401 e 595 27020 9209 8,,28 20 9 70 14740 800 3 .. 21 34 ... 30 793 27.33 81 e 3 10.,03 33.10 14760

1000 2,,90 34037 990 27041 73 .. 9 llo!:7 47&25 1478 0

1200 2864 34&43 1188 27 0 4<; 5705 12e99 ~3010 1480.

.. w a:: ::J U1

o

300

~900 a:. (L

1200

o

150~ 1

40

TEMPERATURE, 4 8 16

REF. NO. 75 - 9 - 7

50-0.0 N lijS-O.O W

MO.-12 ORl-9 GMT-21.0

35

41

OFFSHORE OCEANCGRAPrY GROUP REFERENCE NO .. 75- 9- 7 DATE 9/12/75 POSITION 50- C. ON 9 145- 0.0\'1 G,..T 21 .0 RESULTS OF STP CAST 216 POINTS TAKEN FROM ANALOG TRACE

PRESS TEMP SAL DEPTH SIGMA SVA DELTA FCT. SOUND T D EN

0 f::.56 32.64 0 25 .. 64 235.4 0.0 0.0 14740 10 6 .. 56 32.64 10 25 .. 64 235.7 0 .. 24 o. 01 1474. 20 6.56 32.64 20 25.64 235.8 0.47 0.05 1475& 30 c.5'5 32.64 30 25.65 235 .. 9 0.71 0.11 1475. 50 6.56 32.64 50 25 .. 65 236 .. 1 i .. 18 0.30 147501> 75 6.57 32.65 75 25 .. 65 235.9 1. 7 7 0.68 1475",

100 40 7 0 32.89 99 26 .. 06 1 ~6.8 2.31 1,,1'5 1.469f) 125 4 .. 74- 33.31 124 26.39 165.9 2.77 1. 6~ 1470 .. 150 5 .. 01 ~3 .. 7t. ! 4 <; 26.72 135.5 3.15 2.21 1472 .. 175 4 .. 77 13.82 174 26.7<; 12 e. 5 3048 2.7~ 1471 .. 200 4 .. '35 33.23 ll.gg 26 .. e2 125.6 3.79 3.36 1471. 225 4.39 33oR!':' 223 26 .. 8(; 122 .. 7 4.10 4 .. 03 14710 250 4.26 33.87 248 26.89 120.0 4.41 4 .. 76 1471& 300 4 .. 09 33 .. 92 2se 26.95 11487 4.99 6.41 1471 " 400 30088 34 .. 03 '397 27 0 05 1 C5. 5 6,,09 10 .. 32 147200 500 3.72 34 .. 1~ 496 2781.5 96.9 7 .. 10 14,,95 1473. fOO 3.51 34<121 595 27 8 23 13<;.7 8 .. 04- 20 .. 17 1474" eoo 3 .. 19 34 .. 31 793 27 .. 34 79 .. 9 9 .. 72 32 .. 15 1416&

lOOO 2 .. 8E 34,,3r;; 990 27 .. 43 72.0 11.24 46.C3 1478" 1200 2 .. 60 34 .. 45 1188 27 .. 51 e:5.5 12 .. E 1 1:1 .. 40 1480.

.. w cc :=l (J)

o

300

~900 II: a...

1200

42

o 16

REF. NO. 75 - 9 - 9

50-0.0 N tij5-0.0 W .

MO.-t2 DAY-tO GMT-19.q

35

43

OFFSHORE OCEANOGRAPI-'Y GROUP REFERENCE NO. 75- 9- 9 DATE 10/12/75 POSITION 50- 0. ON 9 145- OcOW GMT 19,,4 RESULTS OF STP CAST 265 POINTS TAKEN FROM ANALOG TRACE

PRESS TEMP SAL DEPTH ~IGMA SVA DELTA FeTe SOUND T 0 EN

0 6067 32 .. 62 0 25 .. 61 238 .. 3 0 .. 0 000 1475 G

10 6 .. 65 32 .. 62 10 25 .. 62 238.4 0,,24 0 .. 01 1475 .. 20 6 .. 65 32,,62 20 25 .. 62 238,,5 0 .. 48 0,,05 1475 .. 30 6Gl65 32 .. 62 30 2541>62 238,,6 0 .. 72 0 0 11 1475 .. 50 6 .. 65 32 .. 63 50 25",62 238 0 1 1 e 19 0",30 1475 .. 75 6 e 66 32 .. 63 75 25 .. 62 238 .. 5 1 fiJ 79 0,,68 1476 ..

100 4 .. 92 32.86 99 26.01 201.3 2 .. 33 1017 146ge 125 4983 33 .. 20 124 26.29 175,,2 2 .. 81 1 .. 71 1470. 150 5 .. 17 33 .. E2 14<; 26 .. 59 147 .. 7 3 .. 21 2 .. 21 14720 175 4 0 98 3307 7 174 26 .. 73 134&6 3 .. !:6 2 .. 85 1472. 200 4080 33.81 199 26 .. 78 12985 3,,89 3,,48 1472 .. 225 4.50 33 .. 85 223 26,,84 12309 4.20 4.16 '1.471. 250 4 111 31 33086 248 26 0 87 121 .. 2 4 .. 51 4 .. 90 1471tl 300 4 .. 04 33 .. 92 2<;8 26 0 95 114@ 4 5& 10 6 .. 56 1470., 400 3 .. 82 34.,06 397 27 .. 08 102 ... 4 6 .. 17 10{)38 1471 .. 500 3 e t8 34 .. 1. !3 49E 27 ... 17 95 .. 0 7 .. 16 14889 1473. 600 3 .. 53 34 .. 20 595 27.22 <; 0.3 8 e G8 20<1> oe 14749 800 3 0 18 34 9 32 793 27 6 35 79@5 ge77 ~2elO 1476(1)

1000 2 .. 88 34.3C; 990 27.44 71e9 11 .. 28 45«><;0 1478. 1200 2,,62 34 .. 44 1188 27 .. 50 66e3 12 .. 66 61035 1480",

... w cr: ::J (f)

o

300

~900 a: a..-

1200

o

1 50C31

44

TEMPERATURE, . C 4 8 12 16

REF. NO. 75 - 9 - 11

50-0.0 N 1~5-0.0 W

1

MO.-12 DAY-11 GMT-17.7

35

45

OFFSHORE OCEANOGRAPI-'Y GROUP REFERENCE NO. 75- 9- 1 1 DATE 11/12/75 POSITION 50- O. ON 9 145- O .. OW GMT 17.7 RESULTS OF STP CAST 275 POINTS TAKEN FROM ANALOG TRACE

PRFSS TEMP SAL DEPTH SIGMA SVA DELTA FeT .. SOUND T D EN

0 6.56 32.63 a 25 .. 64 236.2 0.0 0 .. 0 1474. 10 6 .. 57 32 .. 63 10 25064 236 .. 6 0 .. 24 Oe 01 14-740 20 6 0 55 32.,63 20 25 .. 64 236.5 0.47 0005 1474 .. 30 6.54 32.63 30 25.64 236 .. 6 0 .. 71 0 .. 11 1475 .. 50 6.52 32 0 64 50 25.65 235 9 8 1. 18 0 .. 30 14750 75 6.52 32.(:4 75 25.65 236.1 1.77 0.68 1475<11

100 4.78 32 .. 89 99 26.05 197.6 2.31 1.15 1469. 125 4.96 33",30 124 26.36 169.1 2.77 1.69 1471. 150 5.10 33. c!: 149 26.62 144 .. 7 3.16 2.23 14720 175 4 0 89 33.78 174 26.75 132.8 3.51 2.79 1472. 200 4.53 33.81 199 26.81 126.9 3.83 3.41 14719 225 4.31 33 0 83 223 26.85 123.1 4 e l4- 4.09 1470 8

250 4.19 33.87 248 26.89 119.5 4e45 4. E~3 1470. 300 4 .. 04 33.92 298 26 0 95 114.0 5.03 6.46 1470 .. 400 3087 34 .. 03 397 27 .. 05 105 .. 4 6.12 10 .. 35 1472$ 500 3 .. 73 34 .. 1 :3 496 27&15 96.8 7 .. 13 14,,97 1473 0

600 3 .. 51 34 .. 20 595 27622 90e5 8.07 20 .. 23 14740 800 3 .. 16 34 .. 32 793 27 .. 35 79r>1 g e 76 32 .. 28 1475e

1000 2.,e4 34 0 30; 990 27 .. 44 71.5 11 .. 27 46 .. C8 1477e 1200 2 .. 58 34G46 1188 27,,51 e4e9 12 .. E4 1:1 .. 42 1480 9

.. w a: ::J en

o

300

~900 a: Q....

1200

o

150~ 1

46

·TEMPERATURE, 4 8

REF. NO. 75 - 9 - 12

50-0.0 N lqS-O.O W

MO.-12 OAY-12 GMT-17eij

16

t

I f

35

47

OFFSHORE OCEANOGRAPHY GROUP REFERENCE NOo 15- 9- 12 DATE 12/12/75 POSITION 50- 0 0 ON, 14E- OoO~ GMT 1704 RESULTS OF STP CAST 263 POINTS TAKEN FROM ANALOG TRACE

PRESS TEMP SAL DEPTH =IGMA SVA DELTA FCTe SOUND T 0 EN

0 c.17 32.65 0 25 .. 70 229 0 9 OeO 0.0 1473 0

10 6017 32.65 10 25.70 230.3 0 .. 23 OeOl 1473. 20 6011 32 065 20 25 .. 70 230 .. 4 Oe46 0.05 1473 0 30 6. 17 32065 30 25 .. 70 230 .. 5 0 .. 69 0.11 1473. 50 6014 32.65 50 25&71 230.5 10 15 0.29 14730 75 Cell 32067 15 25 0 72 228 .. 8 1 .. 73 0.66 1474.

100 4 .. 95 32.91 99 26.05 197.9 2.26 1.14 147 O. 125 440 81 33.35 124 26.41 163.7 2.73 1.f.7 1470. 150 4.85 33 .. 70 149 26069 13801 3.10 2 .. 19 1471. 175 4.63 33.82 i74 26.81 127 .. 0 3 0 43 2.73 1471. 200 4.38 33.84 199 26085 123.1 3 e 74 3.33 1470. 225 4.27 33.87 2~""'I c.~ 26.89 119 .. 8 4.04 3.99 1470 e 250 4.16 33 .. 90 248 26.92 116.7 4.34 4.70 1470. 300 4e05 33 .. 9!: 298 26 .. 97 112.2 40 C;;l 6 .. 31 1471 .. 400 3.86 34.06 ~97 27.08 102 .. 6 5 .. ge 10.11 1472. 500 3.71 34 .. 1 5 496 27.16 95.5 6.91'3 14066 1473" 600 3.51 34.21 595 27023 e9.7 7.<;0 19.5t: 1474. 800 3 .. 14 34 8 32 793 27 .. 36 78.5 9 .. 58 31.79 1475.

1000 2.85 34 .. 3C;; C;;90 27 0 43 12"" 0 11 .. as 45050 1478. 1200 2 8 61 34845 1188 27 .. 51 ~5 .. 5 12 .. 45 60.85 1480 ..

.. w a: :::J

, if)

300

~900 a: Q...

1200

o

150~1

48

TEMPERATURE, l! 8 16

REF. NO. 75 - 9 - 13

50-0.0 N lij5-0.0 W

MO.-12 OAI-13 GMT-17~ij

35

49

OFFSHORE OCEANOGRAPt-ly GROUP REFERENCE NO", 75- 9- 13 DATE 13/12/75 POSITION 50- O. ON~ 1. 45- OeO\'; G~T 17 .. 4 RESULTS OF STP CAST 262 POINTS TAKEN FROM ANALOG TRACE

PRESS TEMP SAL DEPTH SIGMft SVA DELTA FeTe SOUND T D EN

0 6047 32 .. 64 0 25 .. 66 234 0 3 o III 0 0 0 0 14740 10 6&47 32,,64 10 25 .. 66 234",6 0 0 23 Oe 01 14740 20 6",47 32c.64 20 25 e 66 234 .. 7 0 .. 47 0005 1474 .. 30 60 4 7 ::2 0 64 30 25 .. 66 234 a 9 Oe70 Dell 1474", 50 6 e 38 32 e 64 50 25",67 234 .. 1 1617 Oe30 14740 75 6 0 31 32065 75 25 0 68 23298 1",76 Oe67 1474"

100 4 .. 92 32&86 99 26901 201&3 2e30 1,,16 14690 125 4.68 33,,17 124 26 .. 29 175 e 7 2",78 1 .. 70 146<;10 150 4 .. 95 ::3",eO 149 26 .. 60 146 .. 7 3<1) 17 2 .. 25 1471., 175 4<o~g 33 .. 80 174 26.,76 131 €I 2 3052 2 .. 82 1472e 200 4062 33083 199 2641 82 126 0 3 3 e 84 3.43 1471" 225 4 ... 41 33 .. 84 223 261085 12396 4e15 4 .. 11 14710 250 4 .. 29 33 .. 86 248 26 .. 87 121 ... 0 4045 4085 1471. 300 4004 :33 .. 93 298 26.,<;16 113.7 5 0 04 6 .. 49 1470 .. 400 3oP,5 34.,05 :::97 27.07 103<;>1 6 ... 12 10 .. 34 1471. 500 311l E8 34 .. 14 496 27 ... 16 9505 7012 14989 1473. 600 3 .. 47 34.,21 595 27 e 24 8809 8 .. 04 20,,03 1473 e 800 3 .. 1 3 34,,33 793 27 e 36 78'103 g e 71 .31 .. 94- 1475.

1 000 20~3 34.,3S 990 27<:>44 71 .. 2 11 .. 20 45.,55 147 7 13

1200 2.,C:;R 34 e 4S 1188 27 .. 51 e5e5 12,,56 60 .. 80 1480"

.. w cr: ::::> (J)

o

300

~900 a:. CL

1200

o

150~1

50

TEMPERATURE, C 4 8 12 16

REF. NO. 75 - 9 - lq

50-0.0 N lij5-0.0 W

MO.-12 OAY-lij GMT-17.3

35

51

OFFSHORE OCEANOGRAPI-lY GROUP REFERENCE NO. 75- 9- 14 OAT E 14/12/75 POSITION 50- 0 .. ON, 145- O"OW GNlT 17 .. 3 RESULTS OF STP CAST 245 POINTS TAKEN FROM ANALOG TRACE

PRESS TEMP SAL DEPTH SI GMA SVA DELTA FeT .. SOUND T 0 EN

0 Co '53 32.63 ° 25 .. 64 235.8 0.0 0",0 1474" 10 6 .. 53 32 .. 63 10 25 .. c4 236 0 2 0 .. 24 Oe 01 14740 20 6 0 51 32.64 20 25 .. 65 23502 0 .. 47 Oe05 14740 30 f: .. 49 32e64 30 25 .. 65 235\91 0 .. 71 0 .. 11 14746 50 6,,46 32.64 50 25\966 235 0 0 1.,18 0., 30 1475. 75 6.45 32., t:4 75 25 .. 66 235,,2 1 0 76 0 .. 67 1475.

100 5012 32,.,89 99 26 .. 02 201e3 2.33 1 \9 1 e 1470. 125 4t1i 81 33 e 30 124 26 e 37 16704 2&80 1.71 1470" 150 5 .. 02 33 .. 70 149 26 .. 67 140 .. 0 3018 2 .. 25 1472 .. 175 4 G 81 33 .. 81 174 26 .. 78 12963 3.52 2.eo 14720 200 4 .. 60 33 .. 83 199 26 .. 82 126.,2 3084 3 .. 42 1471 .. 225 4044 33 .. 84 2~' c:.~ 26.84 123,,9 4 .. 15 4.09 1471,., 250 4 .. 23 33",85 248 26 .. 88 1201!J8 4 .. 46 4083 1470 e 300 4 .. 05 33091 298 26 .. 94 115 ... 3 5 ... 05 6 .. 48 1471 .. 400 3 .. 96 34 .. 05 397 27<1>07 10400 6 .. 14 10e31 1472 ... 500 :3" 72 34 .. 14 496 27016 <;;6 .. 2 7.14 14 .. 95 1473<1\ tOO 3 ... 52 34620 595 27 .. 23 gOol 8 0 07 20 ... 16 14749 800 3 ... 15 34 ... 32 793 27 .. 36 7811>7 91»76 32 .. 18 14750

lOOO 2 .. 87 34 .. 3<:; 990 27,,43 72 .. 0 11 .. 26 45 e 92 1478 .. 1200 2,,1'>1 34 .. 45 1188 27 .. 50 6600 12ec4 61",36 148O",

.. w a: :::::J en

300

~900 a: CL

1200

150~1

52

TEMPERATURE, q 8

REF. NO. 75 - 9 - 16

50-0.0 N lij5-0.0 W

MO.-12 DAY-IS GMT-20.7

35

53

OFFSHORE OCEANOGRAP\-IY GROUP REFERENCE NO .. 75- 9- 16 DATE 15/12/75 POSITiON 50- 0 .. ON, 14 !:- OeO\') GMT 20 9 7 RESULTS OF STP CAST 241 PO IN TS TAKEN FROM ANALOG TRACE

PRESS TEMP SAL DEPTH SI GMA SVA DEL TA FeT .. SOUND T D EN

0 6,,62 32 .. 63 0 25,. 63 236 .. 9 0 .. 0 0,,0 14740 10 6961 32.63 10 251163 237 0 1 0824 0 .. 01 14750 20 6061 32 .. 63 20 25.63 237&3 0 .. 47 Oe05 1475 .. 30 6 .. 57 32.64 30 25 .. 64 23693 0.71 0~11 147511 50 6.52 32 .. 64 50 25&65 23598 1. 18 0,.30 1475. 75 6845 32«>64 75 25,.66 235 9 2 1 .. 77 0,,68 14-75 ..

100 5&00 32.,90 99 26",04 199.2 2.30 le15 1470" 1.25 5.18 33.,39 124 26,,40 164 .. 7 2077 1 II> 68 1472. 150 41\194 33.69 149 26 .. 67 139.,9 3 e 14 2020 1471 " 175 4&69 33,. 7 8 174 26 .. 77 130 0 6 3.48 2076 1471. 200 4.48 33 .. 79 199 26.80 12709 3e80 3 11 37 1471~

225 4032 33 5 83 223 26,,85 123 .. 4 4911 4.05 1470 0

250 4 .. 21 33.,86 248 26 .. 89 119 0 8 4 .. 42 4 .. 79 14700 300 4 .. 10 331/)92 298 2c",94 115e 0 5" 00 6<1143 1471 e 400 3 .. 92 34.03 397 27@04 1. 06 0 0 6 .. 10 lOe'34 1472 .. 500 3 .. 74. 34., 1 '3 496 27 .. 15 97",0 7012 15$00 1 '~73", 600 3,,56 34020 595 27 .. 22 9 Oe e 8e05 20 11 22 1\47441

800 .3 .. 21 34.32 793 27035 79.,5 9 .. 73 32e19 14760 1000 2~88 34 .. 39 990 27.,44 72 0 0 11,,24 46 .. Cl 14780 1200 2064- 3 4 045 1188 27&51 66&0 12062 61 .. 47 1480(.'

o o -

.. w a:: :::a (J)

300

~900 a: CL

1200

150C31

54

TEMPERATURE, l! 8 16

REF. NO. 75 - 9 - 17

50-0.0 N lijS-O.O W

MO.-12 OAY-16 GMT-17uS

35

55

OFFSHORE OCEANOGRAPbY GROUP REFERENCE NO~ 75- 9- 1 7 DATE 16/12/75 POSITION sa- o .. ON, 145- 0.01r.! GMT 1705 RESULTS OF STP CAST 241 POINTS TAKEN FROM ANALOG TRACE

PRESS TEMP SAL DEPTH SIGMA SVA DELTA FeT. SOUND T D EN

0 6.56 32 0 62 0 25",63 23609 0100 0,,0 14746 10 6 .. 56 32,,62 10 25,,63 2.3703 0 .. 24 0 0 01 1474& 20 6.55 32.63 20 25 .. 64 236 .. 6 Oc47 0 0 05 14740 30 ee 55 32&63 30 25",64 23607 De7! 0 .. 11 1475 0

50 6.30 32.65 50 2!:e69 232 .. 3 1 .. 18 0030 14740 75 6 0 23 32.65 75 25",69 231,,7 1@76 0067 1474$

100 5 .. 59 3.2 .. 73 99 25 e 84 218.,2 2$33 1018 1472", 125 4.79 33",13 124 26",24 179$9 2.82 1.74 1470., 150 4 .. 89 33e55 1. 49 26",,56 149& 8 J,,23 2,,31 1471. 175 4,,85 33 0 76 174 2c$73 'I. 33& 9 3.59 2.90 1472" 200 4057 33 .. 82 199 26,,81 126/il8 3091 3052 1471 .. 225 4.,40 33 .. 85 223 26,,86 122",8 4022 4919 1471" 250 4 .. 27 33,,87 248 26 0 89 119&8 4$53 4 0 93 1471. 300 4.09 33 .. 94 298 26.96 113 8 3 Se 11 6056 14710 400 3@q3 34«>04 397 27&05 1. 05 .. l 6019 10043 1472., 500 30 77 34013 496 2701.4 <;7<i>5 7<1>21 151&06 1473<i> f.OO 3059 34 .. 18 595 27 .. 20 <;2(13 eG15 20 .. 37 14740 800 3.23 34 .. 31 793 27 .. 34 80 .. 7 9088 32066 1476 111

1000 2",G5 34 .. 3 e <;90 27042 73 .. 7 11042 46 .. 74 1478. 1200 2",68 34$44 1188 27 .. 50 67 .. 1 121&83 c2e'.S6 1480Gl

o

300

.. w a: ::::> (f') (f)

w900 a::: (L

1200

56

TEMPERATURE, 048

REF. N6. 75 - 9 - 18

50-0.0 N 1~5-0.0 W

MO.-12 OAY-17 GMT-17.6

35

57

OFFSHORE OCEANOGRAPHY GROUP REFERENCE NO .. 75- 9- 18 DATE 17/12/75 POS IT rON. 50- o. ON, 14::- o .. ow GMT 17 .. 6 RESULTS OF STP CAST 231 POINTS TAKEN FQOM ANALOG TRACE

PRESS TEMP SAL DEPTH SIGMA SVA DELTA FeT .. SOUND T D EN

0 6 0 59 32 9 63 0 25 0 63 236 .. 6 000 0,.0 1474& 10 6058 32 .. 63 10 25 ... 63 236 0 7 0.24 0 .. 01 14746 20 6 .. 58 32 .. 63 20 25.63 236 0 8 0.47 0,,05 1475 G

30 e .. ~ e 32.63 ~o 25('163 237 .. 0 0 .. 71 Oel1 1475e 50 6 .. 5A 32 .. 64 50 25 .. 64- 236 .. 5 1.18 Oe30 14-75 0

75 6057 32 .. 64 75 25064 236 0 7 1 .. 78 0 .. 68 14750 100 5 .. 34 32 e 91 99 26,. 01 202 .. :3 2.34 1 .. 18 1471 .. 125 5i1 14 33020 124 26.26 178 .. 5 2 0 82 1,,73 14718 150 5,,09 33.57 149 26 .. 56 150 0 2 J.23 2 .. 31 1472<1> 175 4 .. 89 33.76 1 Til 260 7 3 134 e 3 3 .. 58 2 .. 89 1472e 200 4 .. 68 33.81 199 26.80 128.2 3.91 3.51 1471. 225 4 .. 44- 33 0 84 223 26.84 123&9 4 .. 23 4019 1471011 250 4.31 33 .. 86 248 26 ... 87 121.2 4,.53 4.93 1471 .. 300 4 .. 10 33.91 2g8 26 .. 93 115." 8 5 .. 13 6 .. 60 14710 400 3 .. 91 34~02 397 270 04 106 .. 4 6()23 10Q54 1472@ 500 34'176 3441 13 496 27,.15 97&2 7,. 24 15{118 14730 600 3 0 5e 34~1<; 595 27921 91 .. 7 8 .. 19 20 111 46 14740 800 3 8 23 34 .. 31 793 27.34 80 .. 5 9,.91 ~2 .. 6E 1476 0

lOOO 2.92 34.3 e 990 27 .. 42 73,.3 11 .. 44 46.,6C;; 1478 ... 1200 2 .. 66 34 .. 44 1188 27 .. 49 67",2 12 .. 84 c2 ... 38 1480 ..

w cc ::> if)

o

300

~900 a: Q..

1200

o

150C31

58

TEMPERATURE, 11 8 16

REF. NO. 75 - 9 - 19

50-0.0 N 1~5-0.0 W

MO.-12 DAY-22 GMT-18.3

35

59

OFFSHORE OCEA NOGR APHY GROUP REFERENCE NO .. 75- 9- 19 DATE 22/12/75 POSITION 50- aeON. 145- OeOW Gf'T 1803 RESULTS OF STP CAST 22~ POINTS TAKEN FROM ANALOG TRACE

PRE"SS TEMP SAL DEPTH SIGMA SVfJ DELTA POT. SOUND T D EN

0 6.13 32 .. 65 a 25.71 229.5 OeO 0 .. 0 1472 ... 10 6. 12 32 .. 65 10 25.71 229 .. 6 Oe23 0.01 1473<l> 20 6 .. 11 32 .. 65 20 25 .. 71 229.7 C.46 0,,05 1473 0

30 6" 11 32 .. 65 30 25.71 229.8 0 .. 69 0 .. 11 1473 0

50 6.11 32.65 50 25071 22<; .. 8 10 15 0 0 29 1473@ 75 6.11 32 .. 66 75 25072 229.6 1 .. 72 0 0 66 1474.

100 6 0 02 3206E 99 25 .. 74 22704 2,,30 le17 14740 125 5.11 33.25 124 26 .. 30 17404 2.80 16)75 1471 It

150 5.02 33.66 149 26.64 143eO 3.20 2 .. 30 147219 175 4 .. 89 33. 7 9 174 26 .. 75 13282 3 .. 54 2 e 8E 1472., 200 4.68 33 .. 83 199 26.81 127aO 3 .. 86 3 .. 48 1471 .. 225 4 .. 45 3319 84 223 26.84 124.1 4.17 4.16 14710 250 4 .. 28 33 .. 87 248 26.88 120 .. 2 4.48 4 e 90 14710 300 4 0 07 33c.92 298 26094 114,,9 5.07 6.54 14710 400 3.89 34.,02 397 27.04 106 0 2 6.17 10 .. 47 1472e 500 3.73 34 .. 12 496 27,,14 98.0 7 8 19 15,,14 1473 9

600 3053 34.19 595 27.21 91.2 8.13 204>42 1474@ 800 3.15 34 .. 32 793 27 0 35 79.1 9&e3 32049 1475@

1000 2 .. 85 34.39 990 27844 71,,7 11.33 46 .. 27 1478 .. 1200 2 .. 60 34.45 1188 27.51 65@8 12@ 71 t1 e 64 1480$

.. w cr: ::::> U1

o

300

~900 a: CL

1200

o

150~1

60

TEMPERATURE, lj" 8 16

REF. NO. 75 - 9 - 21

50-0.0 N lij5-0.0 W

MO.-12 DRT-23 GMT-17.S

35

61

OFFSHORE OCEANOGRAPI-IY GROUP REFERENCE NO .. 75- 9- 21 DATE 23/12/75 POSITION 50- O.ON. 145- O.OW GfJT 17.5 RESULTS OF STP CAST 220 POINTS TAKEN FROM ANALCG Tf<ACE

PRESS TEMP SAL DEPTH SIGMA SVA DELTA FOT" SOUND T D EN

0 6.14 32.66 0 25 .. 71 228.9 0 .. 0 0.0 14730 10 6.14 32.66 10 25.71 229.2 0.23 0.01 1473. 20 c .. 14 32.66 20 25.71 22<;.3 C.46 0.05 1473 e

30 6.13 32.66 30 25 .. 71 229.3 0 .. 69 0 .. 11 1473. 50 6 .. 12 32.66 50 2~.72 22<;.4 1.15 0.29 1473. 75 6.09 32.66 75 25.72 229.4 1.72 0.66 1474.

100 4.79 33.0<; 99 26.21 18207 2.26 1 • .13 14690 125 4.88 33.61 124 26.62 144.6 2.67 1.60 1471. 150 4.77 33 .. 79 149 26.77 130.5 3. 01 2.08 1471. 175 4.56 33.82 174 26.82 126.0 3.33 2.61 1470. 200 4.37 33.84 199 26.85 123.0 3.64 3.21 147016 225 4.29 33.86 223 26 .. 87 120.8 3895 3.,87 1470. 250 4.19 33.89 248 26.91 117.8 4.25 4.~<; 1470. 300 4 .. 04 33.94 298 26.96 113 .. 0 4.82 6.,21 1471 .. 400 3.88 34 .. 03 397 27.06 105.0 5. <;1 10eO<; 1472 ... 500 3" 69 34 .. 14 496 27 .. 16 96.1 6.<;2 1406e 1473& 600 3" 49 34,,21 =<;5 27.23 8904 70 E5 19,,89 1473. 800 3013 34.32 793 27036 78.3 90=2 31,,77 14750

1000 2 .. 83 34.40 990 27844 71.0 11 (100 45.38 14778 1200 2.59 34045 1188 27.51 c5e6 12.37 60.63 1480.

w a:. ::J (f)

o

75

~225 a:

300

o

62

TEMPERATURE, C ij 8 12 16

9 - 2

0-0.0 N lij5-0.0 W

0.-12 OAY-2ij GMT-17.

35

63

OFFSHORE OCEANOGRAPHY GROUP PEFERENCE NO .. 75- 9- 22 DATE 24/12/75 POS I TI ON 50- 0 .. ON 9 145- OeOW Gf\AT 17",6 RESULTS OF STP CAST 177 POINTS TAKEN FROM ANALCG l'RAC E

PRESS TEMP SAL DEPTH SIGMfl SV/J DELTA FOT" SOUND' T D EN

0 6 .. 45 32 .. 66 0 25<1>67 2.3286 0 0 0 OeO 1474" 10 6 .. 39 32866 10 25 0 68 232 .. 2 04123 OeOl 14748 20 6.39 32 .. 66 20 25.,68 232,,3 Os 46 OeO'3 1474& 30 6 .. 37 32 .. 66 30 25.,68 232.1 0 .. 70 0«>11 1474 .. 50 6 .. 27 32866 50 25 .. 70 23102 1 .. 16 0 .. 30 14748 75 6 .. 21 32 .. 67 75 25 .. 71 230 6 0 1 .. 74 0 .. 66 147441

100 6 .. 02 32e 74 gg 25",79 222 .. 8 2 .. 31 le17 1474 .. 125 4.84 33 .. 33 124 26(140 165&5 2078 1 .. 71 1470" 150 5 e ll 33 .. 75 149 26070 137 .. 3 3 .. 15 2923 1472", 175 4 .. 91 33 0 83 174 26 .. 78 12<;1 .. 3 3.48 211178 1472e 200 4 0 61 33 .. 86 199 26&84 124.3 3 .. 80 3 .. 38 1471fl 225 4 .. 40 33 .. 87 223 26 .. 87 121&3 4 .. 1.1 4 .. 05 1471 ... 250 4 ... 28 33 .. 89 248 26(190 118 e 7 4041 4071 1471e 300 4007 33,,94 298 26 .. 96 11301 4 .. 99 6.,40 1471 ..

o

.300

.. w a: :::J en

~900 a: 0-

1200

o

150C31

64

TEMPERATURE, 4 8 16

1 REF. NO. 75 - 9 - 23

50-0.0 N 1~5-0.0 W

MO.-12 OAY-25 GHT-17.6

35

65

OFFSHORE OCEAN C (RAPI-'V GRCUP REFERENCE NOe 75- 9- 23 DATE 25/12/75

POSITION 50- O",ON. 145- 0" O\~ GMT 1766 RESULTS OF STP CAST 218 POINTS TAKEN FROM ANALOG TRACE

PRESS TEMP SAL DEPTf-I SIGMA SVA DELTA POT~ SOUND T D EN

0 C .. ). 5 32 .. 65 0 25.,70 229 .. 8 Co 0 0",0 1473 .. 10 6",14 32 0 65 10 25.,71 229<)9 0023 0" 01 1473.,

20 Ce 14 32,,6E 20 25,,71 229.,6 0<1146 01\105 1473 0

30 6 .. 14 32&66 30 25",71 229,,4 0& c9 Oe 11 1473& 50 6 .. 14 32 .. 66 50 25",71 229 0 6 1015 0.,29 14730

75 E,,14 32$66 75 25$71 229,,9 1 .. 72 0.,E6 14740 100 5 6 27 32.,86 99 25098 205,,2 2 .. 28 1 s 15 14710 125 4 .. 88 33" 51 124 2c o 53 152 ",4 2070 le64 1471., 150 4 .. 83 33,,73 149 26e72 135G4 3 .. C6 2014 1471 &

175 4!!O 61 .33&81 l74 26&80 12705 3639 2 .. EE 1471", 200 4.,42 33 .. 84 199 2c 0 85 123@4 3 .. 70 3@28 14700 225 4028 33 .. 86 223 26 e 88 12008 4 .. 01 3 .. 94 1470" 250 4", 18 33",89 24e 26,,91 117 9 6 4$ 31 4 .. 66 1470 .. 300 4 .. 04 33 .. 94 298 26 9 96 112 .. 8 4e88 6&28 1470 .. 400 3 .. R5 34 .. 06 397 27,,08 102 .. 5 5096 10 .. 11 14720 500 3068 34 e 16 496 27 e l€ <;4 .. 2 61fj <;4- 14e60 1473", 600 3@46 34022 595 27 ... 24 8e..,5 7 .. 85 19,,70 1473<\l

800 3 .. 15 34., 33 793 27 .. 36 78 .. 2 9 .. 51 31.,50 147561 1000 2085 3/~ ... 39 990 27044- 71 0 8 11 .. 00 45 0 11 1478 e 1200 2 .. 62 34,,45 U88 27 .. 50 66,,0 12 .. 38 60963 l.480o

w a: ::J (J)

o

300

~900 a: (L

1200

o

150~ 1

66

TEMPERATURE, ·c 4 8 12 16

REF. NO. 75 - 9 - 2~

50-0.0 N lijS-O.O W t f

MO.-12 DAY-27 GMT-17.3

67

OFFSHORE OCEANC(PAPrV GROUP RFFERENCE NO .. 75- 9- 24 DATE 27/12/75 POSITION 50- O~ON. 145- Q",QW GMT 17.,3 RE SlJL TS OF STP CAST 222 POINTS TAKEN FROM ANALOG TR,~CE

PRESS TEMP SAL DEPTt-! SIGMA SVA DELTA POTe SOUND T 0 EN

0 e Q 04 32.,67 0 2551'3 22609 0., 0 o III 0 1472 .. llO 6 .. 05 32&67 10 25 ill 73 227.,4 0..,23 O~ C 1 }"472 .. 20 6005 32667 20 25",73 227.,5 0., 45 0.,05 1473 0

30 6~O5 32 111 67 30 25®73 227 e 6 0& 6.8 Oel0 1473 0

50 6",05 .32{)67 50 25,,73 22:7 ",8 le14 0<1>2':;; 147)",

75 (,,,,05 32.,67 75 2!5@t3 228(.1 1 e r 1 Ot>~5 1473" 100 5.,09 33~05 99 26814 189s3 2 .. 24 1",13 147'O!!l

125 4691 33e 47' 124- 215 .. 50 155 .. 8 2 6 68 1",63 14710 150 5.,13 33 0 7'7 149 26 e 71 136@l3 3., 04 etl>13 14729 175 4.,89 33 .. 82 174 26 0 78 129198 3",37 2 .. 1:8 14729 200 4.58 33 .. 83 199 26882 12600 3",69 3,,29 1471~

225 4 .. 36 33.85 223 26 .. 86 12203 49 C1 3 8 97 1470 8

250 4 .. 20 33,. 88 248 26&90 11898 4&31 4970 1470 0

300 4~08 33 8 92 298 e6e9~ 114~ 8 4- .. 89 6ll\33 14710 400 3~89 34&02 397 27 0 04- lO6~3 5 e 99 10®25 14,i'2~

500 3676 34f) 12 496 ~7 .. 13 <; Sf> 2 7 (> () 1 14 .. 93 1'~ 73 .. 600 3 0 52 34 .. 21 595 27@23 89&9 7695 2011)18 147'4", 800 30 19 34",31 '(93 27 .. 34 79 .. 9 9 0 64 22e23 1476f)

1000 2 8 89 3403e 990 27643 726 7 ll .. 16 46 .. 08 1478 e

1200 2 .. 64- 34C!>4l~ 1.188 27'",50 66<\18 128~= (';&965 1480?

.. w a:: ::> en

o

300

~900 a: (L

1200

o

150~ 1

68

TEMPERATURE, l! 8 16

REF. NOD 75 - 9 - 25

50-0.0 N 1~5-0.0 W

MO.-12 DAI-28 GMT-18.D

35

69

OFFSHORE OC EANOGRAPt-ly GRCUP REFERENCE NO .. 75- 9- 25 DATE 28/12/75 POSITION '30- OeON. 145- OO)OW GMT l8eO RESULTS OF STP CAST 204 POINTS T liKEN FROM AN.ALCG TRACE

PRESS TEMP SAL DEPTH SIGMA SVA DELiA FOT. SOUND T D EN

0 Ce 29 32.c!: 0 25069 231.4 D.O OeO 1473 5

10 6 0 09 32 0 66 10 250)72 228e6 0 .. 23 0 .. 01 1473 9 20 5 .. 98 32.67 20 25.74 226 .. 7 0 .. 46 0 .. 05 1472" 30 5.98 32 .. 67 30 25074 22ce>8 0,,68 0 .. 10 1472", 50 5 0 98 32 .. 67 50 25074 227GO 1 to 14 Oe29 1473 0

75 !:.,98 32 .. 67 75 25 .. 74 22703 1 e 71 Oa65 1473 0

100 5 e 02 33.13 99 26 .. 22 181,,9 2&23 1.12 1470", 125 5. 19 ~3 .. 6e 124 26 .. 62 144 0 3 2 .. 65 1059 1472., 150 5 .. 12 33 .. 79 149 26673 134,,4 2099 20)07 14720 175 4 0 88 33.83 174 26679 12900 3.::2 2e>62 14720 200 4 .. 65 33 .. 84 199 215 .. €2 126.0 3.e4 3.,23 14710 225 4 .. 43 33 .. 85 223 26085 12393 3.<;5 3 .. 90 14710 250 4",27 33 .. 8E 24E 26 .. 89 119 .. 3 4 0 26 4 ... 64 14710 300 4009 33 .. 93 298 26095 114<1>3 4 9 84 6628 1471., 400 3 .. 89 34 0 03 397 27005 105 .. 4 5 111 94 10.>1<; 14729 500 3.,73 34 .. 13 496 27&1!: 9638 6 .. 94· 14- .. 79 1473 9

600 3 e 57 34,,20 595 27021 9192 7 9 ES 20,,04 1474- g

800 3.19 34 .. 32 79_3 27 .. 35 7984- 9.58 32012 1476. lOOO 2,,85 34.40 990 27,,45 71 0 0 114107 45 0 75 1478. 1200 2 .. 60 34 .. 46 1188 27 .. 51 6501 12843 150 0 99 1480.,

o

300

w a: :::> en en w900 a: 0....

1200

o

150~1

70

TEMPERATURE, l! 8 16

REF. NO. 75 - 9 - 26

50-0.0 N lij5-0.0 W

MO.-12 OAl-29 GMT-17.3

35

71

OFFSHORE o C E AN CG R AP I-"Y GROUP REFERENCE NO. 75- 9- 26 DATE 29/12/75 PCSITION 50- O.ON. 145- OflOW GMT 17 8 3 RESULTS OF STP CAST 221 POINTS T/lKEN FROM AN.AL OG TRACE

PRESS TEMP SAL DEPTI-l SIGMA SVA DELTA FOTo SOUND T 0 EN

0 ~.94 3.2.67 a 25 .. 7'5 225.8 0" O' 0.0 1472. 10 5&94 32.67 10 25.75 226.1 0.23 0 .. 01 1472& 20 5894 32.67 20 25",75 226 e 2 0.45 0 0 05 1472G> 30 5.94- 32.67 30 25.75 226.3 0.68 0.10 1472. 50 5 e 95 32.67 50 25.75 226.4- 1 .. 13 0.29 14730 75 5.95 32 e 6E 75 25$75 226&5 1.70 0",65 1473 e

100 5.79 32.77 99 25.84 217,,8 2.26 1,,15 14730 125 5.02 33.39 124 26 0 42 162 .. 9 2072 1&68 14710 150 4.93 33.65 149 26064 142.7 3.10 2 ... 21 1471. 175 4 0 97 33 .. 78 174 26.74 133 87 3645 2e78 147219 200 4.78 33.81 199 26 .. 7 e 129 .. 6 3.77 3" 41 1472. 225 4.53 33.83 223 26083 125ec 4. C9 4",10 1471. 250 4" 35 33",8E 248 26 .. 87 122.0 4 .. 40 4 0 85 14710 300 4 .. 13 33.90 298 26.92 116.9 5.00 64) 51 1471 ... 400 3€> 91 34 .. 03 397 27 e 05 105 0 7 6010 10.45 14720 500 3873 34 .. 14 496 27.15 g6 0 5 7011 15 .. 06 14730 600 3",54 3 4 1020 595 27 .. 22 90.2 ee04 20 .. 29 1474 .. 800 ~. 20 34 .. 33 7<;3 27 .. 35 79 0 0 9 .. 73 32<&25 1476.

1000 2891 34 08 3<; 990 21.43 72€>4 11 0 23 46 .. C5 1478 0

1200 2 .. 63 34045 1188 27.51 65 .. 9 12061 61 .. 42 14801i!

.. w a: :::> en

o

~900 a: (L

1200

o

150~ 1

72

TEMPERATURE, 4 8 16

REF. NO. 75 - 9 - 28

50-0.0 N lij5-0.0 W

MO.-12 OAY-31 GMT-17.ij

35

73

OFFSHORE OCEANOGRAPI-'Y GROUP REFERENCE NO. 75- 9- 28 DATE 31/12/75 POSITION 50- aeON, 145- O.OW GMT 17.4 RESULTS OF STP CAST 243 POINTS TAKEN FROM ANALOG TRACE

PRESS TEMP SAL DEPTH SIGMA SVA DELTA POT .. SOUND T D EN

0 6 .. 25 32.62 0 25 .. 67 23392 o. C 0 .. 0 14 T:3e 10 6 0 25 32 .. 62 10 25.157 233.5 0 .. 23 0.01 14730 20 6,,21 32 .. 64 20 25 .. 69 231 .. 7 0.47 0 .. 05 1473", 30 6 .. 20 32",64- 30 25 ... 69 231.6 0.70 0011 1473 .. 50 (; .. 09 32 .. 65 50 25871 229.8 1. 16 0 .. 29 1473. 75 6 8 08 32.66 75 25 .. 72 229 .. 2 1.73 0 .. 66 14740

100 5.35 ~2 .. 8E 99 25.97 20601 2.29 1 41 16 1471@ 125 51308 33<1140 124 26 8 43 162.5 2.74 1 0 67 1471 til

150 5.20 336171 149 26.66 140 .. 9 3.12 2.19 1473 e 175 Sell 33.79 174 26.73 134 .. 6 3.46 2 .. 76 1473. 200 4.84 33 .. 82 199 26.78 129 .. 5 3.79 3\1139 1472", 225 4<1> 58 33,,85 223 26.84 124.7 4.11 4 .. 08 1471 .. 250 4.40 33e86 248 26.86 122.3 4.41 4 .. 83 1471., 300 4.16 33.91 298 26.93 116.5 5.01 6.50 1471 .. 400 3.91 34.03 397 27 .. 05 105 ... 7 60 12 10",43 1472& 500 3 8 73 34.13 496 27.15 96.7 7 0 13 15 0 06 1473e

600 3056 34.21 5<;5 27.22 90.3 8.06 20 .. 28 1474<1> 800 3,,19 34 0 32 793 27e3~ 79 .. 3 9.76 32.37 14760

1000 2.89 34.40 990 27.44 71.3 11 .. 26 46 .. 15 147BQ 1200 2.63 .34846 1188 27.51 65.4 12.63 (';1., 47 1480 ..

.. w a:. :::::J (f)

o

300

~900 a: (L

1200

o

74

TE"MPERRTURE, l! 8 16

REf. NO. 75 - 9 - 30

50-0.0 N lij5-0.0 W

MO.-l DAY-2 GMT-17a3

35

75

OFFSHORE OCEAI\CGRAPHY GROUP REFERENCE NO. 75- 9- 30 DATE 2/ 1/76 POSITION 50- O.ON. 145- O .. OW GMT 1703 RESULTS OF STP CAST 241 POINTS TAKEN F~OM ANALCG TRACE

PRESS TE~P SAL DEPTH SIGMA SVA DELTA POT<Il SOUND T D EN

0 c.30 32 .. 64 0 25.68 232,,3 0 .. C 0.0 14730 1 0 6 .. 30 32.64 10 25 .. 68 232 .. 6 0023 0 .. 01 1473 G>

20 c .. 30 32.64 20 25.68 2.32 0 8 0&47 Oe05 1473 0

30 6 .. 30 32 .. 64 30 25 .. 68 232 .. 9 0070 0&11 14749 50 6.29 32., 64 50 25 .. 68 232 .. 9 1016 0 .. 30 1474 .. 75 6 8 21 32 .. 66 75 25 0 70 230 e 8 1 .. 74 O .. E? 1474e

100 4 .. 74 33 .. 05 99 26818 185 .. 2 2 .. 27 1 .. 13 1469. 125 5.06 33.44 124 26.46 159 0 7 2 .. 70 1 .. 62 1471 .. 150 5019 33.75 149 26069 138e1 3., 06 2 .. 13 1473 .. 175 5 e 05 33.82 174 26 .. 76 131.6 3.40 2.69 14720 200 4.74 33.85 199 26 ... 82 12611>4 3 ... 72 3.30 1472& 225 4.52 33.86 223 26.85 123 .. 3 4.03 3 0 <;8 1471 III

250 4 0 36 33 .. 89 248 26.89 119 .. 8 4 .. 33 4 .. 71 1471. 300 4011 33,,93 298 26095 114 .. 3 4.92 6.35 1471 @

400 3& 90 34e 04 397 27 .. 06 104 19 4 6 .. 02 10 .. 27 1l.472. 500 3.74 34 e l!5 496 27 .. lE 95\9'9 7.02 14e8€ 1473@ 600 3 .. 55 34622 595 27 .. 23 89 6 5 7 41 94 20 e 02 1474" 800 31919 34.34 793 27 .. 36 78.1 geel 31.90 1476 e

1000 2 .. R6 34&41 990 27,,45 7001 11.09 4503<; 1478 .. 1200 2 .. 1':2 34 .. 4 7 1188 27052 64 .. 5 12 .. 43 60.45 1480"

o

300

CD

D600 ..

w cc ::J if)

~900 a: CL

1200

o

150~ 1

76

TEMPERATURE, 4 8 16

REF. NO. 75 - 9 - 31

50-0.0 N lij5-0.0 W

MO.-1 OAY-3 GHT-17.3

77

OFFSHORE DCEANOGRAPI-Y GRCUP REFERENCE NO .. 75- 9- 31 DATE 3/ 1/76 POSITION 50- OeONt 145- O.OW GMT 17.,3 RESULTS OF STP CAST 235 PCIN1S TAKEN FJ=;OM ANALCG TRACE

PRESS TEMP SAL DEPTH SIGMA SV,A DELTA POT .. SOUND T D EN

0 6.28 32.64 0 25,,6e 232.0 CoC 0.0 1473", 10 6 .. 29 32 .. 64- 10 25 .. 68 23204 0 .. 23 0..,01 1473e 2.0 6 .. 28 32 .. 64- 20 25068 232.6 0.46 0 0 05 1473 e 30 6.27 32064 .30 25 .. 68 232.4 0.70 0" 11 1474f1} 50 6.25 32.65 50 25,,69 231 .. 7 1 .. 16 Oe30 1474", 75 6.06 32.70 75 25 .. 75 226 .. 0 1074 o. e e 1473@

100 5.01 33.15 99 26023 180 0 6 2,,25 1 .. 1 1 1470e 125 5021 33.71 124 26065 141.1 2. t4 1.56 1472", 150 4&98 33082 149 26 .. 77 130.6 2,,98 2 .. 03 1472 .. 175 4077 33.85 174 26 .. 81 126.2 3.30 2.56 1471@ 200 4.54 33 .. 86 199 26.85 123.2 3.61 30llS 1471. 225 4.32 33 089 223 26.90 118.9 3.91 3 .. 81 1470 0 250 4025 33.91 248 26.92 116.,9 4020 4053 1471e 300 4.07 33 .. 95 298 26697 112 .. 6 4078 6 .. 14 1471e 400 '::.88 34 .. 07 397 27 e 08 102",3 5.86 99g.9 1472 .. 500 3.71 34 .. 16 496 27 .. 17 94.8 6e85 14 .. <:1 1473e 600 3 .. 53 34.23 595 27 .. 24 88.4 7.76 191)63 1474" 800 3016 34.,34 793 27 .. 37 77 .. 2 9.40 31 .. 2Sl 1475",

1000 2.88 34.41 990 27 .. 45 70.,6 10", 87 44 .. 73 14781} 1200 20 f2 34 .. 47 1188 27 .. 52 64.5 12 .. 22 59 .. 80 1480e

.. w a: ::::> (f)

o

300

~900 a: (L

1200

78

- TEMPERATURE, 048

REF. NO. 75 - 9 - 32

50-0.0 N lij5-0.0 W

MO.-l DAY-ij GKT-23a3

150~ 1 35

79

OFF SHORE OCEANCC:RAP~Y GRCUP REFERENCE NO .. 75- 9- 32 DATE 4/ 1/76 POSITION 50- OeON9 145- 0 .. 0\<1 GMT 2303 RESULTS OF STP CAST 21~ POIN1S TAKEN Ff<OM ANALOG TRACE

PRESS TEMP SAL CEPTH SIGMA SVA DELTA POT., SOUND T D EN

0 6 0 00 32066 0 25.73 227.2 O .. C OeC 1472 .. 10 6.00 32.,66 10 25 0 73 227.5 0&23 0.,01 1472 .. 20 C.OO 32866 20 25.73 22707 0 0 46 0;;05 14729 30 6 .. 00 32 0 66 30 25.73 227&8 0 .. 68 0.10 1472@ 50 6 .. 01 32 .. 66 50 25 .. 73 22801 1014 Oe2g 1473 .. 75 5.99 32 .. 66 75 25 .. 73 228,,2 1 II 71 Oe65 1473 0

100 5 e 68 32 0 77 99 25 0 86 216&5 2 .. 27 1 .. 16 14720 125 S.15 33 e 64 124 26 0 61 145 0 7 2 .. 71 1066 14720 150 5 0 04 33980 149 26 .. 74 13288 3.05 2 0 13 1472<1> 175 4 .. 78 33 .. 84 174 26 .. 81 12702 3 .. 38 2067 14710 200 4055 33086 199 26 0 85 123.4 3.69 34327 1471., 225 4 .. 39 33 .. 87 223 26 0 87 121&1 4.00 3&93 14710 250 4.24 33.89 248 26.90 118 0 3 4930 4.65 1470 .. 300 4 .. 04 33095 298 26 .. 97 112&3 4087 6 0 27 1471~

400 30815 34 .. 05 397 27007 104" 0 5.95 10.10 1472" 500 3 0 73 34.\4 496 27.15 96.3 6.~5 14 .. CS 14731)

600 3,,55 3 4 021 595 27,,23 89 .. 9 7 e 88 19.90 1474. 800 3 .. 18 34 .. 33 793 27,.36 7e.2 9.56 31" 82 1476 ...

1 000 2& Bg 34 .. 40 990 27,,44 7108 11 .. 05 45 6 49 1478 0

1200 2 .. 62 34" 4€ 11 88 27 .. 52 6499 12842 60 .. 82 1480 ..

.. w a: => en

o

~900 cc (L

1200

o

80

TEMPERATURE, L! 8 16

REF. NO. 75 - 9 - 33

50-0.0 N lij5-0.0 W

MO.-l DAY-S GMT-18.D

35

81

OFFSHORE OCEANCGRAPt-y GRCUP REFERENCE NO" 75- g- 33 DATE 5/ 1/76 POSITION 50- OoON, 145- OIDOW GMT 18eO RESULTS OF STP CAST 233 PCIN1S TAKEN FROM ANALCG TFiACE

PPESS TEMP SAL DEPTH SIGMA 5VA DELTA POTo SOUND T D EN

0 6eOO ~2e66 0 25.73 227 .. 2 OIDO OoC 14720 10 6. 01 32,,66 10 25 0 73 227.6 0..,23 OeOl 14720 20 Eo 01 32 .. 66 20 25.73 227 .. 7 Oe 46 0$05 14720 30 6 0 01 32 .. 66 30 25Cl>73 22709 0.68 0010 1473 .. 50 6001 32 .. 6E 50 25.73 22819 1 1 .. 14 0 .. 29 14730 75 6.,00 32007 75 25,,74 227.5 1871 00E5 1473 e

100 5 .. 38 32.,81 99 25$92 210.1 2&27 1 .. 15 14718 125 5.13 33 8 55 124 26 .. 54 152.2 2 .. 72 1.67 1.472e 150 5",07 33079 149 261973 13309 3.C7 2016 14720 175 4 .. 94 33,,83 174 26.78 129.7 3.40 2.,70 1472. 200 4.75 33 .. 84 199 26 .. 81 127..,0 3.72 3.32 14728 225 4.53 33 .. 86 223 26.85 12304 4.04 4 .. 00 14710 250 4 ... 32 33 .. 87 248 26 ... 88 120& 6 4 .. 34 4 .. 73 1471. 300 4 .. 08 33892 298 26.94 114.9 4093 6.39 1471 .. 400 3.85 34.05 397 27,,07 103.7 6& 02 10 .. 26 1471 .. 500 3.67 34 .. 15 496 27,,17 94e6 7 .. 01 14 .. 79 1472" 600 3 G 50 34.22 595 27 .. 24 88 .. 7 7992 19f190 14740 800 3.1 8 340.33 793 27",36 78 .. 5 9,,58 31.,73 1476 ..

1000 2 .. 86 34 .. 39 990 27 .. 44 71 .. 5 11 .. 07 45.31 1l.478$ 1200 21\162 34 .. 4 t5 1188 27 .. 52 64 8 9 12 .. 43 60 .. 53 i4BO ..

.. w a:. => en

o

300

~900 a: D-

1200

82

TEMPERATURE, 048

REF. NO. 75 - 9 - 35

50-0.0 N lij5-0.0 W

MO.-l OAl-6 GMT-20.3

150~ 1

83

OFF SHORE OCEAl\iO<::RAPI-Y GROUP REFERENCE NO .. 75- 9- 35 DATE 6/ 1/76 POSITION 50- o oON. 145- OoOW GMT 20,,3 RESUL TS OF STP CAST 21<:; FeINTS TAKEN F~OM ANALCG TRACE

PRESS TEMP SAL DEPTH SIGMA S V .14 DELTA POT 3 SOUND T D EN

0 6 .. 32 32663 0 25 .. 67 23303 OeC 0 .. 0 14730 10 6",32 32063 10 25 .. 67 23395 0 .. 23 0 .. C1 147'3 e

20 t.S .. 31 32 .. 63 20 251067 233 .. 6 0 .. 47 0,,05 147'4<') 30 6 .. 32 32,,63 30 25,,67 23309 0 0 70 0 .. 11 'I.474~

50 6 .. 32 32 .. 63 50 25 .. 67 234.1 1017 0 .. 30 14-r409 75 6 .. 24 32065 75 25 e 69 231,,8 1075 Oec7 1474'<l)

100 4 .. 96 32 .. 99 99 26 .. 11 192 .. 0 2829 leIS 1470Q) 125 5 .. 11 33 .. 59 124 26&57 149",0 2 .. 73 1 .. 64 1472@ 150 5 .. 07 33879 149 26 .. 74 133 0 4 3 .. 07 2",13 1472", 175 4 8 78 33 .. 83 174 26e80 127 0 9 3040 2067 1471@ 200 4 .. 55 33,,84 199 26<»83 12409 3 8 72 3 .. 27 14716 225 4 0 30 33 .. 86 223 26 .. 87 12009 4002 3 .. 94 1470 .. 250 4 .. 19 33",89 248 26 .. 91 11768 4 ... 32 4066 1470 e

300 4.02 33094 298 26 .. 97 112 9 6 4 0 90 En27 1470 0

400 3 0 84 34.,05 397 27.,07 103 ... 3 50 <;7 10,,10 14716 500 3 .. 67 34",15 496 27 .. 17 94.,9 6®SE 14~e2 1472@ 600 3 .. 50 34 .. 22 595 27&24 88",5 7 .. 87 19073 147319 800 3,,17 34 6 33 793 27 .. 3c 78 .. 3 <;",54 31362 1476@

1000 2 .. 8 7 34 .. 39 990 27 .. 44 71 .. 9 11e04 45 .. 32 1478 .. 1200 2061 34 .. 4c 1188 27$51 65,,5 1241 40 60~62 1480.,

o

300

.. W· a: :::> (J)

~900 a: 0-

1200

84

TEMPERATURE, 048

REF. NO. 75 - 9 - 36

50-0.0 N lij5-0.0 W

MO.-l DAl-7 GMT-18.0

85

OFF SHORE OCEAI'<CCRAPI-Y GRCUP REFERENCE NO. 7f::,- 9- 3E DATE 7/ 1/76 POSITION 50- OeON 9 145- OeOW GMT 1800 RE SUL TS OF STP CAST 245 PCINiS TAKEN FROM ANALCG TRACE

P~ESS TEMP SAl. DEPTH SIGMA SVA DELTA POT .. SOUND T 0 EN

0 6805 32.65 0 25,,72 228 9 6 OeC 0 .. 0 14720 10 6.07 32e65 10 25.71 22ge1 Oe23 0.01 1472., 20 6.07 32 .. 65 20 25.71 229 .. 2 0 0 46 Oe05 1473", 30 6 .. 00 32.65 30 25&72 228e6 0&69 0 .. 11 14720 50 5.95 32" 66 50 25674 227 .. 4 1,,14 0.,29 14731J} 75 5.94 32967 75 25 e 75 226.8 Ito?l 0 .. 65 1473 0

100 4 .. 79 33 .. 02 99 26 .. 16 188 .. 0 2025 1013 14690 125 5.02 33&55 124 26 .. 55 151 .. 0 2.66 1.60 1471<1 150 5,.03 33677 149 26 .. 72 134 0 8 3902 2910 14720 175 4.75 33& 84 114 26 9 81 126.8 3 ... 34 2 .. 64 1471 <i)

200 4 .. 56 33085 199 26.,84 12402 3 .. e:6 3 0 24 14710 225 4 .. 38 33.87 223 26087 121,,0 3., 96 34090 1471 (J

250 4",20 33 .. 90 248 26.92 11701 4026 4 0 62 14700 300 4 .. 15 33.,95 298 26 .. 96 113~1 4.83 6 e 23 1471", 400 3 6 86 34605 397 27.07 103<1> 6 5092 10 .. 08 14720 500 3 0 68 34 .. 16 496 27e 1 e 94 e 3 6 e sa 14 .. C2 1473@ 600 3 0 50 34 e 24 595 27 .. 25 8764 7081 19 .. 69 1474<9

800 3 .. 15 34 0 34 793 27 .. 37 17 04 9 0 47 31~45 14756> 1000 2882 34 .. 41 990 27 .. 46 69,,7 10&93 440c5 14718 1200 2 .. '5.7 34" 47 1188 27 .. 53 63&8 12 .. 26 59.,72 1480a

• w a: ::> CJ1

300

~900 a: (L

1200

o

150~1

86

TEMPERATURE, C 4 8 12 16

REF. NO. 75 - 9 - 37

50-0.0 N lij5-0.0 W

MO.-l DAY-8 GMT-17.S

35

87

OFFSHORE OCEANOGRAPI-Y GRCUP REFERENCE N04 75- 9- 37 DATE 8/ 1/76 POSITION 50- 0.0 N. 145- O.OW GMT 17., !3 RESULTS OF STP CAST 23t POINTS "TAKEN FROM ANftLCG TRACE

PRESS TEf'AP SAL CEPTH SIGMA SVA DELTA POTe SOUND T D EN

0 6.20 32.66 0 25 9 71 229 s 6 0.,0 OoC 1473. 10 c.20 32,,66 10 25.,71 22969 0.23 0.,01 1473. 20 6.20 32.66 20 25.71 23090 0.46 Oe 05 14730 30 6 .. 1.8 32.66 30 25.71 229.9 0.69 0.11 1473. 50 5.96 32.67 50 25074 226.8 1. 15 0.29 1473. 75 5 .. 93 32.68 75 25.75 225,,9 1.71 0 .. 155 1473.

100 !5 .. 0 1 33.14 99 26 .. 23 181.4 2022 1.10 1470. 125 4.91 33 .. 47 124 2c-.!5 a 155.8 2e€4 1.58 1471. 150 4 .. 99 33.81 149 26.76 131.4 2.99 2.08 1472. 175 4.62 33 0 84 174 26&82 125.4 3.32 2.61 14710 200 4.47 33.86 199 26$86 122.5 3,,63 3020 1471. 225 4.30 33.89 223 26 6 90 118.7 3693 3086 1470. 250 4 .. 22 33.91 248 26,,92 11606 4.22 4.57 1470. 300 40 13 33.97 298 26&98 111.6 4 .. 79 6016 1471., 400 3.83 34 .. 06 397 27.08 1. 02.7 5 .. 86 ge95 1471. 500 3e 70 34 0 15 496 27e16 95G6 6.84 14 0 48 1473& 600 3.52 3 4 822 595 27024 88418 7 .. 76 19"c3 14748 800 3.13 34.34 793 27.37 77 9 3 9.41 31e36 1475.

1000 2 .. 86 34.40 990 27e45 71 0 0 10 0 90 44.95 1478 8

1200 2 .. 61 34045 1188 27.51 c5.5 12.26 eOg2c 1480$

THIS PAGE IS BLANK

SURFACE SALINITY AND TEMPERATURE OBSERVATIONS

(P-75-9)

90

SUP FACE SAL I N I TY ANO TEMPERATURE 08SERV AT IONS Cq U I S f' REFEPf"NCE NUMBER 75- q

OATF/T IIvlE SALll\iITY TEIvlP LONG ITUDE YR 11.10 DY GIvl T r; /00 C WEST 75 12 ;:., 345 31.268 B.5 12'5-33 7'5 12 6 545 31.651 8.7 126- ')

75 12 6 830 31.058 9.3 126-4() 75 12 6 123C 31.993 8. <:; 127-40 75 12 6 165 (') 32.397 8.2 12.8- 40 75 12 7 635 8.6 130-40 75 12 7 1230 8.f) 132- 4f'1 75 12 7 1 71 '5 32.432 7.5 134-40 75 1 2 7 2315 32.460 7.5 136-41} 75 1. 2 8 440 7.4 138-4') 75 12 8 lC35 32.568 6. q 140-40 75 1 2 A 19011 32.62e 6.5 142-4(' 75 12 9 0 6.6 DN STATION 75 1 2 1t:' 0 3~.62q 6.5 ON STATICN 75 12 1 1 0 32.620 6.5 ON STATION 75 12 12 I) 32.623 6.4 ON ST AT ION 75 1? 13 I) 32.631 6. 1 ON STATION 75 12 14 I') 32.623 6. /1- ON STAT InN 75 12 15 0 32.630 6.4 ON STAT! eN 75 12' 16 0 32.623 6.5 ON STATION 75 12 17 <) 32.611 6.5 ON STATION 75 1 ? 18 0 32.596 6. '5 ON STATIQ,,! 75 12 19 G 32.605 6.6 ON ST,ATIO"l 75 1 2 20 (l 32.639 6.4 ON ST AT ION 75 12 21 0 32.642 6.4 ON STATION 75 12 22 n 32.656 6.1 ON ST AT I ON 75 12 23 0 ~2.631') 6.1 ON ST.ATION 7'5 12 24 () 32.641 6.1 nN STAT 10"! 75 12 25 (\ 32. fA 9 5.9 ON STATI ON 75 12 26 0 32.647 6.° ON STATION 75 12 27 D 32.659 6.(\ 0'" STATION 75 1 2 2S3 0 32.656 ~. q ON STATION 75 12 29 {) 32.655 6.''. ON STATI'JN 75 12 30 0 32.656 '5.9 ON STATICN 75 12 31 0 32.656 6. ') ON STATION 76 t t 0 32.623 A. I) ON STATIO"! 76 1 2 () 32.599 6.4 ON STATION 76 1 '3 0 32.623 6.3 ON STATION 76 1 4 0 32.60<; 6.3 ON STATION 76 1 5 0 32.626 5. q ON STATI'J'" 76 1 6 0 32.62 g 6.() ON ST ,AT ION 76 1 7 0 32.620 E. ;:> ON STAT!ON 76 ! 8 Q 32.647 '5.9 ON STATION 76 1 9 !) 32.61!'- 6.1 ON ST AT! ON

91

SURFACE SAL It-I I TV AND TEMPERATURE OBSERVATIONS CRUISE REFEREI\CE NUMBER 73- 9

DATE/TIME SALINITY TEf'.1P LONGITUDE YR MO DY GMT 0/00 C WEST 76 1 9 50 32.f21 6.0 142-40 76 1 9 520 32.522 6.3 140-41 76 1 9 1000 32.504 6.4 138-40 76 1 9 1425 32.466 6.4 136-40 76 1 9 1910 32.450 6.7 134-40 76 1 10 45 32.476 6.8 132-40 76 1 10 1055 32.002 7.8 128-40 76 1 10 170 Q 29.750 7.5 126-11 76 1 10 2000 29 .. C 12 7.8 125-35

. f -, r,·