. Cruise Report for PR24

PR24:A Hydrographic Section from Mindano SE to Indonesia

6N: A Hydrographic Section from Mindanao SE to Palau

2N: A Hydrographic Section from 130-00E to 134-00E along 2-00N

1N: A Hydrographic Section from 130-00E to 135-00E along 1-00N

134E: A Hydrographic Section from 3-00N to 6-14N along 134-00E

1 O · August 1994

RN KAIYO

6 Oct. 1992 - 29 Oct. 1992

Contents

1. Highlight

2. Summary of the observations and data files

3. Cruise track and stations

4. Results

5. Parameters, Contribution Institutions and Personnel

6. Underway measurements

7. CTD hardware

8. CTD data processing

9. XBT data processing

10. Moorings

11. Weather and seacondition

12. Problems

Acknowledgements

List o{ Figu_res Fig.1.1 CTD Locations

Fig.1.2 XBT Locations

Fig.4.1 a Vertical Section of Temperature along 6N

Fig.4.1 b Vertical Section of Salinity along 6N

Fig.4.2a Vertical Section of Temperature along PR24-A (Notheast side)

Fig.4.2b Vertical Section of Salinity along PR24-A (Northeast side)

Fig.4.3a Vertical Section of Temperature along PR24-B (Southwest side}

Fig 4.3b Vertical Section of Salinity along PR24-A (Southwest side)

Fig.4.4a Vertical Section of Temperature along 2N

Fig.4.4b Vertical Section of Salinity along 2N

Fig 4.5a Vertical Section of Temperature along 1 N

Fig.4.5b Vertical Section of Salinity along 1 N

Fig.4.6a Vertical Section of Temperature along 134E

Fig.4.6b Vertical Section of Salinity along 134E

Fig.4.7a Vertical Section of Geostrophic Current Velocity along PR24-A (Norteast

side)

Fig.4.7b Vertical Section of Geostrophic Current Velocity along PR24-B (Southwest

side)

Fig.7.1 The Result of the Temperature Sensor Calibration

Fig.7.2 The Result of the Conductivity Sensor Calibration

Fig.7.3 The Result of the Pressure Sensor Calibration

Fig.10.1 The Mooring Line at 3-28N, 127-53E and 3-13N, 128-27E

List of Tables Table 2.1 Station Location and Scientific Events (---.SUM file)

Table 5.1 List of measured parameters, sampling group responsible for each and

the Principal Investigator for each

Table 5.2 Cruise Participants

Table 6.1 Sampling/Measurements Equipments

Table 8.1 Definitio of Noise

Table 11.1 The Weather Record

)

1.Highlight

by T.Kawano (11 August 1994)

Chief Scientist: Kei Muneyama, ~AMSTEC, Japan

Co-Chief Scientist: John I. Pariwono, BPPT, Indonesia

Cruise: KAIY0-9207

Dates: 6 October to 29 October 1992

Ship: RN KAIYO Shipcode: XK

Ports of call: Marakal to Marakal Palau via Bitung and Biak, Indonesia

We made a hydrographic observation in the southernmost Philippine Sea in

order to know the oceanic structure and current field of this area. Our interest is

mainly focused on the Indonesian Throughflow and the New Guinia Coastal

Undercurrent. For this purpose, we made 41 stations of CTD casting and 63

stations of XBT measurements. We also deploy 2 moorings which consist of 3

current meters and 6 thermometers between Talaud Is. and Morotai Is. to know the

seasonal variation of the Indonesian Throughflow.

Our CTD and XBT section is shown in Fig.1.1 and Fig.1.2. The 6N section is

extended from 6-00N, 134-00E to 6-00N, 126-35E with station spacing of 60nm

or less. The PR24 is from 6-00N,'126-35E to 2-21N, 129-26E and it can be

divided into two sections, which are the northeast section and the southwest

section. The 2N section is from 2-00N, 130-00E to 2-00N, 134-00E and the 1N

section is.from 1-00N, 130-00E to 1-00N, 135-00E. We also made the CTD

casting along 134E, which is from 3-00N, 134-00E to 6-14N, 134-00E.

We made XBT measurements just before the CTD casting. When the spacing

of the CTD station was more than 60nm, we made XBT measurements at the

center of the CTD stations.

Although a General Oceanics (GO) 12 position rosette water sampler with 5

litter Niskin bottles was equipped and we planned sample water salinity

measurements, our Aotosal 84008 did not work well because of our insufficient

maintenance of the instrument. We also measured the dissolved oxygen, but the

accuracy and precision of our method did not meet with the WOGE onetime

standards. Then we did not report on these things.

We deployed two moorings between Talaud Is. and Morotai Is., however we

could not recover these moorings while the next WOGE cruise executed from 12

1 -

Feb. to 3 Mar. 1994.

The accuracies of salinity and temperature were estimated only by the result

of the sensor calibration executed at Seabird Electronics, Inc, and they might be

0.01 PSS or less in salinity and 0.002 or more in temperature. As the result of our

own calibration of the pressure sensor, the accuracy was less than 1 db.

As we mention the following chapter, since we do not have enough data for

the calibration of CTD data, especially data of temperature and conductivity, we

report non-corrected data.

- 2 -

2. Summary of the observations and data files by T.Kawano (10 August 1994)

Station locations and all scie_ntific events are shown in the WOGE format

KYZZZZ92.SUM file'and shown in Table 2.1.

The WOGE format ---.CTD files are named as follows;

1st digit: K (This means KAIYO) · 2nd and 3rd digits: line designator

4th and 5th digit: station number

6th digit cast number

7th digit and 8th digits: the last two digits of the year

For example, the ---.CTD file name of the first cast at the station 1 on section 6N

becomes K6N01192.CTD.

The WOGE format ---.XBT files are named as follows;

1st digit: K (This means KAIYO) 2nd and 3rd digits: line designator

4th and 5th digit station number

6th digit: cast number

7th digit and 8th digits: the last two digits of the year

For example, the ---.XBT file name of the first cast at the. station 1 on section 6N

becomes K6N01192.XBT.

We use 1861 as a line designator for 134E.

In each ---.SUM, ---.CTD, and ---.XBT files, we used 1XK1 as a ship code.

CTD casting accomplished

41 CTD stations were accomplished

XBT measurements accomplished

63 XBT stations were accomplished

2 RCM moorings were deployed.

-3-

Table 2.1 Station Location and Scientific Events

RN KAIYO(Country code 49,ship code is XK) Expedition designation-cruise

number K9207/leg 1-3 along WHP section PR24 EXPOCODE WHP-ID STNNBR NO TYPE DATE TIME CODE POSITION CODE UBD HBD MW

MAXP NOBARAMETER COMM.ENT

49XKK9207/1 6N 01 1 CTD 100692 1805 BE 05 59.49 N 134 00. 16 E GPS 2646 49XKK9207/l 6N 01 1 CTD 100692 BO N E

2530

49XKX9207/l 6N 01 1 CTD 100692 1923 EN 05 59.35 N 134 00.44 E GPS 2644 49XKK9207/1 6N XOI 1 XBT 100692 1929 DE 05 59. 19 N 134 00.23 E GPS 2640 49XKK9207/l 6N X02 l XBT 100692 2224 DE 06 00. 11 N 133 30.23 E GPS 3535 49XKK9207/l SN 02 1 CTD 100792 0126 BE 05 59.86 N 132 59.91 E GPS 3551 49XKK9207/1 6N 02 1 CTD 100792 BO N E

3449 49XKK9_207 /1 6N 02 I CTD 100792 0254 EN 05 59.65 N 132 59.82 E GPS 3504

49XKK9207/l 6N X03 l XBT 100792 0112 DE 05 59.99 N 133 02.00 E GPS 3644 49XKK9207 /1 6N X04 1 XBT 100792 0544 DE 06 00.61 N 132 28.85 E GPS 3378 49XKK9207/1 6N X05 1 XBT _l 00792 0804 DE 06 00.21 N 132 01.06 E GPS 4933 49XKK9207/l 6N 03 1 CfD 100792 0823 BE 05 59. 93 N 131 59.98 E GPS 5009 49XKK9207/l 6N 03 1 CTD 100792 BO N E

4969 49XKK9207/l 6N 03 1 CTD 100792 1034 EN 05 59. 74 N 131 59. 17 E GPS 4995 49XKK9207/l 6N X06 l XBT 100792 1305 DE 06 00.00 N 131 29.67 E GPS 5335 49XKK9207/l 6N X07 1 XBT 100792 1543 DE 05 59. 96 N 131 00.32 E GPS 5496 49XKK9207/l 6N 04 1 CTD 1007921550 BE 05 59.92 N 131 00.05 E GPS 5488 49XKK9207/1 6N 04 1 CTD 100792 BO N E

5387 49XKK9207/l 6N 04 I CTD 100792 1810 EN 05 59.66 N 131 00.04 E GPS 5489 49XKK9207 /1 6N X08 1 XBT 100792- 2109 DE 06 00. 11 N 130 29.97 E GPS 5531 49XKK9207/l 6N X09 1 XBT 100892 0000 DE 06 00.01 N 130 00.99 E GPS 5456 49XKK9207/1 6N 05 1 ·CTD 100892 0011 BE 06 00.01 N 130 00.00 E GPS 5448 49XKK9207/1 6N 05 1 CTD 100892 BO N E

5393 49XKK9207/1 6N 05 1 CTD 100892 0238 EN 05 59.90 N 130 00.47 E GPS 5442 49XKK9207 /1 6N XlO I XBT 100892 0545 DE 06 00.03 N 129 30.26 E GPS 5567 49XKK9207/1 6N· Xll I XBT 100892 0843 BE 06 00.43 N 129 00.89 E GPS 5427 49XKK9207/1 6N 06 l CTD 100892 0901 BE 05 59.95 N 129 00.02 E GPS 5351 49XKK9207/1 6N 06 1 CTD 100892 BO N E

5281

-4-

49XKK9207 /l 6N 06 I CTD 100892 1117 EN . 05 59.66 N 129 00.41 E GPS 5407 49XKK9207/l 6N X12 1 XBT 100892 1553 DE 05 59.99 N 128 30.28 E.GPS 4807 49XKK9207/1 6N Xl3 1 XBT 100892 2150 DE 06 00.01 N 128 01.08 E GPS 5534 49XKK9207/l 6N 07 1 CTD 100892 2204 BE 05 59.93 N 127 59. 98 E GPS 5534 49XKK9207/1 6N 07 1 CTD 100892 BO N E

5500 49XKK9207/1 6N 07 1 CTD 100992 0030 EN 05 59.06 N 127 59.65 E GPS 5551 49XKK9207/1 6N Xl4 I XBT 100992 0318 DE 05 59.97 N 127 30. 79 E GPS 8321 49XKK9207/l 6N 08 1 CTD 100992 0329 BE 05 59.97 N 127 29.91 E GPS 8530 49XKK9207/l 6N 08 I CTD 100992 BO N E

6110 49XKK9207/l 6N 08 1 CTD 100992 0608 EN 05 58.97 N 127 29.29 E GPS 8538 49XKK9207/1 6N X15 1 XBT 100992 0850 DE 06 00.02 N 127 01.01 E GPS 3985 ~9XKK9207/l 6N 09 1 CTD 100992 0902 BE 06 00.04 N 127 00.05 E GPS 3848 49XKK9207/1 6N 09 1 CTD 100992 BO N E

3699 49XKK9207/1 6N 09 1 CTD 100992 1042 EN 05 59.25 N 126 59.86 E GPS 3766 49XKK9207/1 6N Xl6 1 XBT 100992 1257 DE 05 59.98 N 126 35.61 E GPS 3639 49XKK9207/1 6N 10 1 CTD 100992 1307 BE 06 02.00 N 126 35.63 E GPS 3530 49XKK9207/l 6N 10 1 CTD 100992 BQ ,. N E

3369 49XKK9207/l 6N 10 I CTD.100992 1441 EN 05 59. 38 N 126 38.32 E GPS 3475 49XKK9207/2 PR24 X17 1 XBT 101392 0342 DE 05 33. 99 N 126 51.33 E GPS 3798 49XKK9207/2 PR24 11 1 CTD 101392 0357 BE 05 35. 14 N 126 51.30 E GPS 3671 49XKK9207/2 PR24 11 1 CTD 101392 BO N E

3546

49XKK9207/2 PR24 11 1 CTD 101392 0526 EN 05 35.03 N 126 51.07 E GPS 3647 49XKK9207/2 PR24 XI8 1 XBT 101392 0738 DE 05 11.66 N 127 06.64 E GPS 3134 49XKK9207/2 PR24 12 1 CTD 101392 0747 BE 05 11.42 N 127 07. 18 E GPS 3133 49XKK9207/2 PR24 12 I CTD 101392 BO N E

3030 (

49XKK9207/2 PR24 12 .1 CTD 101392 0906 EN 05 11. 17 N 127 06.83 E GPS 3093 49XKK9207/2 PR24 Xl9 1 XBT 101392 1124 DE 04 47. 75 N 127 22.95 E GPS 3382 49XKK9207/2 PR24 13 1 CTD 101392 1130 BE 04 47.29 N 127 23. 16 E GPS 3346

49XKK9207/2 .PR24 13 1 CTD 101392 BO N E

3240 49XKK9207/2 PR24 13 1 CTD 101392 1254 EN 04 47.03 N 127 23.21 E GPS 3457 49XKK9207/2 PR24 X20 1 XBT 101392 1532 DE 04 18.08 N 127 17.42 E GPS 2084 49XKK9207/2 PR24 14 l CTD 101392 1543 BE 04 17.24 N 127 17.07 E GPS 2120 49XKK9207/2 PR24 14 1 CTD 101392 BO N E

2014 49XKK9207/2 PR24 14 1 CTD 101392 1638 EN 04 16. 98 N 127 17.05 E GPS 2131

- 5

49XKK9207/2 PR24·X21 1 XBT 101392 192a DE 03 48.07 N 127 10.45 E GPS 2274 49XKK9207/2 PR24 15 1 CTD 101392 1936 BE 03 47.41N12710.36 E GPS 2239 49XKK9207/2 PR24 15 1 CTD 101392 BO N E

2127 49XKK9207/2 PR24 15 I CTD 101392 203.6 EN 03 46.87 N 127 10.21 E GPS 2184 49XKK9207/2 PR24 X22 1 XBT 101492 0151 DE 04 23.80 N 127 56. 70 E GPS 2661 49XKK9207/2 PR24 16 1 CTD 101492 0159 BE 04 24.21 N 127 57.26 E GPS 2661 49XKK9207/2 PR24 16 1 CTD 101492 BO, N E

2409 49XKK9207/2 PR24 16 1 CTD 101492 0303 EN 04 24.22 N 127 57. 83 E GPS 2652 49XKK9207/2 PR24 X23 1 XBT 101492 0953 DE 03 25.29 N 127 44.23 E GPS 2243 49XKK9207/2 PR24 17 1 CTD 101492 1001 BE 03 25. 10 N 127 44. 13 E GPS 2231 49XKK9207/2 PR24 17 I CTD 101492 BO N E

2099 49XKK9207/2 PR24 17 1 CTD 101492 1059 EN 03 24.92 N 127 44.51 E GPS 2227 49XKK9207/2 PR24 X25 1 XBT 101492 2139 DE 03 04. 74 N 128 17. 91 E GPS 3756 49ill9207/2 PR24 19 I CTD 101492 2226 BE 03 03.05 N 128 17.07 E GPS 3757 49XKK9207/2 PR24 19 1 CTD 101492 BO N E

: 3644 49XKK9207/2 PR24 19 1 CTD 101592 0000 EN 03 03.40 N 128, 17.38 E GPS 3757 49XKK9207/2 PR24 X24 1 XBT 101692 0540 DE 04 02.56 N 128 38.05 E GPS 1965 49XKJ(9207/2 PR24 18 1 CTD 101692 0548 BE 04 03.04 N 128 31.07 E GPS 1851 49XKK9207/2 PR24 18 1 CTD 101692 BO N E

1577 49XKK9207/2 PR24 18 l CTD 101692 0635 EN 04 03.63 N 128 31~54 E GPS 1667 49XKK9207/2 PR24 X26 1 XBT 101692 2044 DE 03 41.65 N 129 03.84 E GPS 4858 49XKK9207/2 PR24 20 1 CTD 101692 2100 BE 03 41. 19 N 129 04. 13 E GPS 4736 49XKK9207/2 PR24 20 1 CTD 101692 BO N E

4671 49XKK9207/2 PR24 20 I CTD 101692 2300 EN 03 41.50 N 129 08.09 E GPS 4805 49XKK9207/2 PR24 X27 1 XBT 101792 0505 DE 02 42.97 N 128 51.98 E GPS 3473 49XKK9207/2 PR24 21 I CTD 101792 0518. BE 02 41.95 N 128 51. 98 E GPS . 3457 49ill9207/2 PR24 21 I CTD 101792 BO N E

3346 49ill9207/2 PR24 21 1 CTD 101792 0642 EN 02 42.24 N 128 51. 62 E GPS 3509 49XKK9207/2 PR24 X28 l XBT 101792 2145 DE 03 19. 16 N 129 37.88 E GPS 3492

49XKK9207/2 PR24 22 1 CTD 101792 2158 BE 03 19.02 N 129 37.97 E GPS 3435 49XKK9207 /2 ·. PR24 22, l CTD 101792 BO N E

3328 49XKK9207/2 PR24 22 l CTD 101792 2321 EN 03 16.24 N 129 37.23 E·GPS 49XKK9207/2 PR24 X29 1 XBT 101892 0548 DE 02 21.98 N 129 26.31 E GPS 2323 49XKK9207/2 PR24 23' 1 CTD 101892 0603 BE 02 20. 92 N 129 25.95 E GPS 1998

-, 6

49XKK9207/2 PR24 23 1 CTD 101892 BO N E 1817

49XKK9207/2 PR24 23 1 crn 101892 0100 EN 02 20. 77 N 129 25. 79 E GPS 2007 49XKK9207/2 2N X30 1 XBT 101892 2150 DE 01 59.97 N 129 59.84 E GPS 4388 49XKK9207/2 2N 24 1 crn 101s92 2159 BE 01 59.99 N 129 59. 99 E GPS 4388 49XKK9207/2 2N 24 1 CfD 101892 BO N E

4259 49XKK9207/2 2N 24 · 1 crn 101892 2347 EN 01 59.53 N 129 59.51 E GPS 4396 49XKK9207/2 2N X31 1 XBT 101992 0310 DE 01 30.03 N 130 00.01 E GPS . 4103 49XKK9207/2 IN X32 1 XBT 101992 0626 DE 01 01.04 N 130 00.04 E GPS 3015 49XKK9207/2 IN 25 1 CfD 101992 0639 BE 01 00. 12 N 130 00.00 E GPS 3016 49XKK9207/2 IN 25 1 CfD 101992 BO N E

2932 49XKK9207/2 IN 25 1 crn 101992 0753 EN 00 59.87 N 130 00.00 E GPS 3016

·49XKK9207/2 2N X33 1 XBT 101992 1150 DE 01 30. 00 N 130 30.00 E GPS 3843 49XKK9207/2 2N X34 I XBT 101992 2147 DE 01 59.96 N 130 59. 77 E GPS · 3944 49XKK9207/2 2N 26 , 1 CfD 101992 2156 BE 02 00.03 N 131 00.01 E GPS 3950 49XKK9207/2 2N 26 1 CfD 101992 BO N E

3848

49XKK9207/2 2N 26 1 CTD 101992 2335 EN 02 00.37 N 131 00.26 E GPS 3956 49XKK9207/2 2N X35 1 XBT 102092 0223 DE 01 29. 99 N 130 57.01 E GPS 3847 49XKK9207/2 2N X36 · 1 XBT 102092 0605 DE 01 00. 83 N 130 53.05 E GPS 3642 49XKK9207/2 IN 27 1 CTD 102092 0617 BE 01 00.02 N 130 52.98 E GPS 3636 49XKK9207/2 IN 27 1 CfD 102092 BO N E

3540

49XKK9207/2 IN 27 1 CTD 102092 0750 EN 00 59. 72 N 130 52. 74 E GPS 3630 49XKK9207/2 2N X37 1 XBT 102092 1155 DE 01 30.03 N ·131 26.05 E GPS 3093 49XKK9207/2 2N X38 1 XBT 102092 2145 DE 01 59.86 N 132 00. 17 E GPS 3994 49XKK9207/2 2N 28 1 CTD 102092 2200 BE 01 59. 99 N 131 59.98 E GPS 4024 49XKK9207/2 2N 28 1 CfD 102092 BO N E·

3902 49XKK9207/2 2N 28 1 CTD 102092 2346 EN 01 59.38 N 132 00.36 E GPS 4016 49XKK9207/2 2N X39 1 XBT 102192 0246 DE 01 29.99 N 131 59.99 E GPS. 4090 49XKK9207/2 IN X40 1 XBT 102192 0602 DE 01 00.59 N 131 59. 99 E GPS 3691 49XKK9207/2 IN 29 1 CfD 102192 0611 BE 01 00.04 N 132 00.09 E GPS 3571 49XKK9207/2 IN 29 1 CfD 102192 BO N E

3442

49XKK9207/2 IN 29 1 CfD 102192 0739 EN 00 59.69 N 131 59.94 E GPS 3488 49XKK9207/2 IN X41 1 XBT 102192 1250 DE 00 30.01 N 132 00.00 E GPS 3800 4~XKK9207/2 IN X42 1 XBT 102192.2146 DE 00 00.49 N 131 59.52 E GPS 4606 49XKK9207/2 IN 30 l CfD 102192 2202 BE 00 00.05 N 132 00.00 E GPS 4608

49XKK9207/2 lN 30 I CTD 102192 BO N E 4568

49XKK9207/2 1N 30 I CTD 102292 0000 EN 00 00.42 S 132 00. 10 E GPS 4611 49XKK9207/2 IN X43 1 XBT 102292 0251 DE 00 00.01 N 132 24.99 E GPS 4574 49XKK9207/2 IN X44 1 XBT 102292 0552 DE 00 00.03 N 132 48.99 E GPS 4819 49XKK9207/2 IN 31 l CTD 102292 0602 BE 00 00.01 N 132 49.96 E GPS 4802 49ill9207/2 IN 31 1 CTD 102292 BO N E 4759

49XKK9207/2 1N 31 1 CTD 102292 0805 EN 00 00. 12 N 132 48. 99 E GPS 4666 49XKK9207/2 lN X45 1 XBT 102292 1257 DE 00 30.01 N 132 55.00 E GPS 3999 49XKK9207/2 1N X46 1 XBT 102292 2140 DE 01 00. 16 N 132 59.66 E GPS 3324 49XKK9207/2 1N 32 1 CTD 102292 2155 BE 01 00. IO N 133 00. 15 E GPS 3340 49XKK9207/2 IN 32 1 CTD 102292 BO N E

3230 49XKK9207/2 IN 32 1 CTD 102292 2317 EN 00 59. 75 N 133 00.08 E GPS 3336 49XKK9207/2 2N X47 1 XBT 102392 0233 DE 01 29.69 N 132 59.99 E GPS 3362 49XKK9207/2 2N X48 1 XBT 102392 0553 DE 01 59. 13 N 132 59. 78 E GPS 3450 49XKK9207/2 2N 33 1 CTD 102392 0602 BE 01 59.97 N 132 59.96 E GPS 3597 49XKK9207/2 2N 33 1 CTD 102392 BO N E 3396

49XKK9207/2 2N 33 1 CTD 102392 0734 EN 02 00.06 N 133 00.86 E GPS 3516 49XKK9207/2 2N X49 I XBT 102392 1227 DE 02 00.01 N 133 30.06 E GPS 3882 49XKK9207/2 2N X50 1 XBT 102392 2142 DE 02 00. 16 N 133 59.90 E GPS 4576 49XKK9207/2 2N 34 1 CTD 102392 2157 BE 02 00. 15 N 134 00~07 E GPS 4575 49XKK9207/2 2N 34 1 CTD 102392 BO N E 4446

49XKK9207/2 2N 34 1 CTD 102392 2353 EN 02 00.46 N 133 59. 76 E GPS 4574 49XKK9207/2 2N X51 1 XBT 102492 0321 DE 01 30.00 N 134 00.00 E GPS 4602 49XKK9207/2 IN X52 1 XBT 102492 0551 DE 01 05.94 N 133 59.94 E GPS · 3579 49XKK9207/2 IN 35 1 CTD 102492 0602 BE 01 05.26 N 133 59. 99 E GPS 3516 49XKK9207/2 1N 35 1 CTD 102492 BO N E 3442

49XKK9207/2 1N 35 1 CTD 102492 0731 EN 01 05.09 N 133 59.81 E GPS 3498 49XKK9207/2 lN X53 1 XBT 102492 1407 DE 0100.01 N 134 31.07 E GPS 1940 49XKK9207/2 IN X54 1 XBT 102492 2148 DE 01 00.43 N 134 59. 98 E GPS 4397 49XKK9207/2 lN 36 1 CTD 102492 2201 BE 00 59.99 N 134 59.99 E GPS 4399 49XKK9207/2 IN 36 1 CTD 102492 BO N E

4245 49XKK9207/2 1N 36 1 CTD 102492 2351 EN 00 59.81 N 135 00. 15 E GPS 4400 49XKK9207/2 lN X55 1 XBT 102592 0306 DE 00 30. 19 N 135 04.82 E GPS 4837 49XKK9207/2 IN X56 1 XBT 102592 0611 DE 00 00.97 N 135 09.69 E GPS 4580 49XKK9207/2 IN 37 l CTD 102592 0622 BE 00 00. 12 N 135 09.86 E GPS 4436

- 8 -

49XKK9207/2 lN 37 1 CTD 102592 BO N E 4362

49XKK9207/2 IN 37 l CTD 102592 0815 EN 00 00. 19 N 135 09.53 E GPS 4418 49XKK9207/3 134E X57 1 XBT 102792 0456 DE 02 59.03 N 134 00.37 E GPS 3300 49XKK9207/3 134E 38 1 CTD 102792 0507 BE 02 59.96 N 134 00.01 E GPS 3295 49XKK9207/3 134E 38 l CTD 102792 BO N E

3135 49XKK9207/3 134E 38 1 CTD 102792 0634 EN 03 00.07 N 134 00. 14 E GPS 3316 49XKK9207/3 134E X58 1 XBT 102792 0935 DE 03 30.00 N 134 00.06 E GPS 3293 49XKK9207/3 134E X59 1 XBT 102792 1231 DE 03 58.95 N 133 59. 98 E GPS 4268 49XKK9207/3 I34E 39 1 CTD 102792 1242 BE 03 59.99 N 134 00.06 E GPS 4328 49XKK9207/3 I34E 39 l CTD 102792 BO N E

4246 49XKK9207/3 134E 39 1 CTD 102792 1430 EN 04 00.07 N 134 00. 16 E GPS 4261 49XKK9207/3 I34E X60 1 XBT 102792 1732 DE 04 30.00 N 133 59. 99 E GPS 4449 49XKK9207/3 134E X61 1 XBT 102792 2029 DE 04 59.42 N 133 59.95 E GPS 3891 49XKK9207/3 134E 40 1 CTD 102792 2042 BE 05 00.03 N 134 00.05 E GPS 4107-49XKK9207/3 134E 40 1 CTD 102792 BO N E

3735 49XKK9207/3 134E 40 1 CTD 102792 2220'EN 05 00.40 N 133 59.84 E GPS 4158 49XKK9207/3 I34E X62 1 XBT 102892 0124 DE 05 30.05 N 133 59. 99 E GPS 3703 49XKK9207/3 134E X63 1 XBT 102892 0525 DE 06 10.54 N 133 59.96 E GPS 5969 49XKK9207/3 134E 41 1 CTD 102892 0554 BE 06 14.03 N 134 00.82 E GPS 6433 49XKK9207/3 134E 41 1 CTD 102892 BO N E

6162 49XKK9207/3 134E 41 1 CTD 102892 0844 EN 06 14.52 N 134 00. 97 E GPS 6654

- 9 -

3. Cruise track and stations

by T.Kawano (10 August 1994)

The ship's track is shown in Fig.2.1 and station locations are in the

KVZZZZ92.SUM file.

The station interval from 6-00N, 134-00E to 6-00N, 128-00E was 60nm and

that from 6-00N, 128-00E to 6-00N, 126-35E was 30nm. Then the ship went to

Bitung, Indonesia in order to pick Indonesian scientists and a security officer up and

we continued the observation from 5-35N, 126-51E to 2-00N, 130-00E which was

equivalent to PR24. During the observation of this section, we deployed 2

moorings at 3-25N, 127-44E and 3-03N, 128-17E. After we observed the section

2N and 1 N, we went to Biak, Indonesia where Indonesian scientists and the

security officer got off the ship. We made CTD casting with 60nm interval on the

way to Palau (from 3-00N, 134E to 6-00N, 134-00E).

- 10

4. Results by Yuji Kashino (B August 1994)

The temperature and salinity section along 6N, PR24, 1N, 2N and 134E are

shown in Fig. 4-1 - 4-6. The geostrophic velocity section relative to 1500db along

PR24 are shown in Fig.4-7a,-7b, respectivily.

The prominent features of salinity distribution are low salinity water located

between Mindanao Island and Moretai Island (depth:200-400db) and high salinity

water at southern part of observation area (depth:100:-300db). The low salinity

water (lower than 34.5 PSU) is North Pacific Intermediate Water which was also

observed in WEPOCS Ill (Bingham and Lukus {1994)). The geostrophic velocity

field shows that a part of this water observed between Talaud Islands and Morotai

Island comes from Indonesian seas. The high salinity water (higher than 35.0 PSU)

is the Tropical Water transported by New Guinia Coastal Under Current trough the

Vitiaz Strait (Tsuchiya et al., 1989). This water reachs 3N-4N on 134E section and

near Morotai Island. Near the north edge of this water the interleaving is observed.

The direction of geostrophic velocity are south-eastward between Mindanao

Island and Talaud Islands and north-westward between Talaud Islands and Morotai

Island above 500 db. Total geostrophic transport between Mindanao Island and

Morotai Island is 6Sv toward Pacific.

We missed the volume transport of Mindanao Current because we did not

observe near Mindanao Island.

References:

Bingham, F. M. and A.Lukas, 1994, The southward intrusion of North Pacific

Intermediate Water along th Mindanao coast, J. Phys. Oceanogr., 24, 141-154.

Tsuchiya, M. , A.Lukas, A.A.Fine, E.Firing and E.Lindstrom, 1989, Sourcewaters of

the Pacific Equatorial Undercurrent, Prag. Oceanog., 23, 101-147.

- 11

5. Parameters, Contribution Institutions and Personnel

by T .. Kawano (10 August 1993)

The details are listed in Table 5.1 and Table 5.2.

Table 5.1 List of measured parameters, sampling group responsible for each and

the Principal Investigator for each.

Parameter Sampling Group Principal investigator

CTD/Rosette JAMSTEC Yuji Kashino and T.Kawano XBT JAMSTEC Yuji Kashino and T.Kawano Salinity JAMSTEC T.Kawano 02 sn1 Hidetoshi Watanabe Mooring SUI/ J AMSTEC Hidetoshi Watanabe and

Noboru Takiwaki ------------------------~---------------------------------------

12-

Table 5.2. Cruise participants

----------------------------------------------------------------Name Affiliation Role ============----======·=========================-=--------------Kei Muneyama JAMSTEC Chief Scientist John I. Pari wono Bogall Univ. Co-chief Scientist Shoichiro Nakamoto JAMSTEC CTD/XBT data analysis Hidetoshi Watanabe STM Mooring/02 Noboru Takiwaki JAMSTEC Mooring Takeshi Kawano JAMSTEC CTD /Rosette, XBT and Salinity Yuji Kashino JAMSTEC CTD Software and XBT Reiichi Kobayashi STM 02. Tokuijiro Toda STM Mooring/02 Teruhisa Hattori STM Mooring Johnny Banjarnahor LIPI CTD and XBT Handoko Manote BPPT CTD and XBT Hiroshi Yamamoto NME CTD and XBT Koichi Takao NME CTD and XBT Minoru Yamaguchi NME CTD and XBT Yoshihito Kikuchi(Student) Ryukyu Univ. CTD and XBT Ken Isshiki(Student) TOKAI Univ. CTD and Salinity Taichi Tenmizu(Student) TOKAI Univ. CTD and Salinity

JAMSTEC Japan Marine Science and technology Center, Japan BPPT Badan Pengkajian Dan Penerapan Teknologi (Agency for the Assessment

and Application of Technology of the Republic of Indonesia) Bogall Univ. Bogall University, Japan LIPI Lembaga Ilum Pengetahuan Indonesia (The Indonesian Institute of Sciences) STM Sanyo Techno Marine~ Inc., Japan NME Nippon Marine Enterprises, Ltd., Japan Ryukyu Univ. Ryukyu University, Japan TOKAI Univ. TOKAI University, Japan

13

6. Sampling/measurements equipment by T.KAWANO (10 August 1994)

The details were listed in Table 6.1.

Table 6.1. Sampling/Measurements Equipments

------------------------------------------ ·---------------------Small volume : 12-position rosette (G01015) wi~h 5 litter Niskin bottles

sampling

CTD System: SBE-911 CTD (maximum operating depth is 6,800m)

Winch and cable:Tsurumi Seiki TS-8PVCTD winches having 7,000meters cable of

7.4 mm diameter. The maximum rolling load is 1,800 kg x 64 m/min.

Salinometer: Guildline Autosal 84008.

Oxygen Analysis: modified Carpenter method described in 1KAIYO-KANSOKU­

SH ISHIN1. (the guideline for hydrographic observations

published by JMA.

* JMA: Japan meteorological Agency

-14-

7. CTD hardware by T.Kawano (10 August 1994)

A 5-litter 12-position rosette (G01015) with a S8E9 for 6,800m was used.

The wire was a single conductor 7.4mm steel rope and the winch was built by

Tsurumi Seiki, J·apan. The sensors of the CTD system are listed below.

a) Underwater unit

Temperature Sensor :Model SBE3 for 6,800m

S/N 031086

Conductivity Sensor :Model SBE4 for 6,800m

S/N 040771

Pump :Model S8E5

S/N 050342

Pressure Sensor :Paroscientifc Digiquarts pressure sensor

Model 410K-105 for 6,800m

S/N 41396

b) Deck Unit

S8E11 .with a computer made by NEC, Japan

The data acquisition software for the CTD was 'SEASOFT Ver.3.3GJ' .

The pre-cruise calibrations for the temperature sensor and the conductivity

sensor were conducted by NRCC in Mar. 4, 1992. That for the pressure sensor

was conducted by Paroscientific, Inc. in Sept. 5, 1990. The post-cruise

calibrations for the temperature sensor and the conductivity sensor were conducted

by NRCC in Jan. 29, 1993 (Fig.7.1 and Fig.7.2) and that for the pressure sensor

was conducted by us/JAMSTEC using Budenberg Dead-Weight Pressure Tester in

Aug. 12, 1993 (Fig.7.3). The drifts of the temperature sensor and the conductivity

sensor were reported to. be 0.002 degC/year and 0.00012 Sim/month, respectively.

However, since the conductivity sensor was reportd to be dirty, we do not think that

it is possible to make interpolation in order to correct the conductivity data. As

shown in Fig. 7.1, the drift coefficient of the temperature sensor remarkably changed

in this period. So we do not think also that it is possible to correct the temperature

data using this coefficient. As the result of the post-cruise calibration of the

pressure sensor, its' accuracy, precision and hysteresis were ca. 0.3 dbar, 0.1

dbar and 0.2 dbar, respectively.

15 -

8. CTD data processing by Y. Kashino (B August 1994)

The CTD data was acquired by SBE 911 system whose frequency was 24 Hz.

The data acquired from deck unit was saved as a binary file to the hard disk

connected with NEC PC-9801 ES on board. After CTD cast, this binary data was

converted to ASCII file. The CTD data acquisition software, SEASOFT Ver. 3.3GJ

by Sea Bird Electronics Inc., was used for these data processing.

After the cruise, remarkable noises defined in table 8-1 were removed from the.

24 Hz data. Uniform pressure CTD profile data was created by same method as

one of Millard and Yang (1992).

We don t report the data when CTD was near surface (upper than 15 db)

because the pump of CTD was not active then.

Data calibrations of the temperature and salinity (ex. cell thermal correction)

were not done. We did also nothing for salinity spikes and shed wakes.

The accuracies of temperature and salinity might be 0.002 deg C or more and

0.01 PSU or less, respectively. Because these accuracies might be over criterion

defined in WOCE-WHP, flags of all parameters except for oxygen should be 3. We

didn't have CTD oxygen sensor then, flag of CTD oxygen is 5.

References

Millard,R. and K.Yang, 1992, CTD calibration and processing methods used by

Woods Hole Oceanographic Institution, Draft (April 20, 1992)

16-

Table 8. 1. Definition of noise.

Pressure (db)

1. Range 0.5 < or 8000 >

2. Difference from previous step value

3. Difference from running mean

(a) 0 - 400m

(b) 400 1000m

(c) 1000 - 2000m

(d) 2000m -

I. 0 >

o. 5 >

0. 5 >

o. 5 >

o. 5 >

Temperature (deg C)

0 < or 32 >

o. 5 >

LO >

o. 2 >

o. 1 >

0.05 >

-17-

Conductivity (S/m)

2 < or 8 >

o. 05 >

O. I >

o. 02 >

o. 01 >

o. 005 >

9. XBT data processing by Y. Kashino (9 August1994)

We deployed T7-XBTs(for 760m depth) at 63 stations. Data was acquired

through the data converter every 50 msec. When this data was saved into the

floppy disk in NEC PC-9801 F, its sampling rate decreased to several times per

second. First 10 records of data from sea surface and the data below 760m were

neglected. The range of depth reported in XBT file is between 4m and 760m. We

report the XBT temperature every 1 m. We didn1t calibrate the depth values. The

temperature values of each record were calculated by cubic spline method.

We employed a following formula to convert duration into depth.

2x = ( 6.472 - 0.00216t) * t

where, 2x is depth and t is time.

18

10. Moorings by T.Kawano (10 August 1994)

In order to estimate the se~sonal change of the Indonesian Throughflow

. between the Talaud Island and the Morotai Island, we deployed 2 mooring, which

consist of 3 current meters and 6 thermometers. The mooring lines are shown in

Fig.10.1. The instruments are listed below.

· 1) 3-28N, 127-53E, Depth 2,237m

Thermometer: Sanyo-Sokki,Japan,model MTM1 and MTM2

MTM1 S/N 111,112,113,114

MTM2 S/N 29,54

Currentmeter: AANDERAA RCM5

S/N 8472, 64345, 64365

Acoustic Releaser: Nichiyu-Giken, Japan; model L-2

S/N 4266-3F

2) 3-13N, 128-27E,Depth 2,340m

Thermometer: Sanyo-Sokki,Japan,model MTM1 and MTM2

MTM1 S/N 115, 116, 117, 118

MTM2 S/N 31 , 55

Currentmeter: AANDERAA RCM5

S/N 8477, 64355, 81055

Acoustic Releaser: Nichiyu-Giken, Japan, model L~2

S/N 4265-3E

NOTE:

In spite of our efforts, we could not recover these moorings during our next

WOGE cruise executed in Feb. 1994. Details are written in the cruise report for

PR1S and PR24 dated 28·Apri11994.

-19-

11. Weather and sea condition by T .. Kawano and Y.. Kashino (11 August 1994)

The weather records at the beginning of CTD cast are tabulated in Table 11-1.

The southwesterly monsoon wind was dominant and the weather was almost finny

during the period from 6 October to 23 October 1992. It was usual weather in the

tropical equator and was almost easy. The observed wind direction, however,

changed from southwesterly to northerly at the end of October 1992 and the

weather became cloudy or shower.

The air temperature showed the diurnal variation, namely high in afternoon up

to 28 to 31 degree Celsius low in evening to morning at 27 to 28 degree Celsius in

finny day. When the heavy shower was observed the air temperature was

decreased to 25 to 26 degree Celsius.

During the observation along section 6N, the wind speed was around 5 m/s and

the wave height was around 1 meters. Then the wind speed increased to 1 O - 11

m/s and the wave height increased to around 2 meters during the observation along

section PR-24 north of 4 degree North. The southwesterly monsoon wind becomes

week to 2-8 m/s at the stations in southern part of PR24. As the ship sailed on

section 1 N and 2N, the SSW wind of 3-7 m/s was dominant and the wave height

was below 1 meter. As the ship headed to north along 134 deg. E, the wind

direction became northerly of 5-1 O m/s while the wave height sometimes higher

than 2 meters.

· - 20-

Table lL 1 Wether Records

Date/time Lat Long. WD ws Temp. Pres. Shiptime UTC Deg. Min. Deg. Min. mis Deg.C hPa

921006/18 05 59 N 134 00 E SSW 1008. 5 1007/04 921007/01 06 00 N 133 00 E SSW 5 30.8 1008. 0 1007 /11 921007/08 06 00 N 132 00 E WSW 5 28. 6 1007. 8 1007 /18 921007/15 06 00 N 131 00 E SE 5 28. 0 1009. 0 1008/01 921008/00 06 00 N 130 00 E s 4 28. 5 1008. 5 1008/10

, 921008/09 06 00 N 129 00 E WSW 5 26. 9 1007. 6 1008/19 921008/22 06 00 N 128 00 E SW 8 28. 6 1007. 2 1009/08 921009/03 06 00 N 127 30 E s 8 29.4 1009. 3 1009/13 921009/09 06 00 N 127 00 E SSW 10 28. 7 1007. 7 1009/19 921009/13 06 02 N 126 36 E SW 11 28.0 1009. 7 1009/23 921013/03 05 35 N 126 51 E WSW 11 30. 6 1007. 5 1013/13 921013/07 05 11 N 127 07 E SW 11 29. 1 1005. 9 1013/17 921013/11 04 47 N 127 23 E WSW 11 27.7 1008. 5 1013/21 921013/15 04 17 N 127 17 E s 8 27.2 1009. 1 1014/01 921013/19 03 47 N 127 10 E w 7 27. 0 1005. 5 1014/05 921014/01 04 24 N 127 57 E SSW 8 31.4 1005. 0 1014/11 921014/10 03 25 N 127 44 E SSW 9. 5 28. 5 1007. 7 1014/20 921014/22 03 03 N 128 17 E SW 9 28. 8 1008~ 7 1015/08 921016/05 04 03 N 128 ·31 E WSW 4 28. 7 1007. 4 1016/15 921016/21 03 41 N 129 04 E SW 8 28. 0 1008.4 1017 /06 921017/05 02 42 N 128 52 E SSW 3. 5 31. 2 1007. 7 1017/15 921017 /21 03 19 N 129 38 E WSW 2 26. 7 1008.2 1018/07 921018/06 02 21 N 129 26 E SSW 6 28.4 1007. 2 1018/16 921018/21 02 00 N 130 00 E SSW 7 28. 8 1008. 5 1019/07 921019/06 01 00 N 130 00 E s 6 29.8 1007. 9 1019/16 · 921019/21 02 00 N 131 00 E SSW 5 28.5 1008.4 1020/07 921020/06 01 00 N 130 53 E SW 6 29. 6 1006. 9 1020/16 921020/22 02 00 N 132 00 E SW 6 28. 4 1009. 3 1021/07 921021/06 01 00 N 132 00 E SSW 8 29.8 1006. 1 1021/16 921021/22 00 00 N 132 00 E SSW 7 28.0 1007. 3 1022/08 921022/06 00 00 N 132 50 E ENE 3 31. 8 1006. 7 1022/16 921022/21 01 00 N 133 00 E SSW 6 28. 3 1008.0 1023/07 921023/06 02 00 N 133 00 E SSE 5. 5 30. 6 1007. 9 1023/16

- 21-

921023/21 02 00 N 134 00 E SSW 4 28. 8 1009.0 1024/07 921024/06 01 05 N 134 00 E SE 11. 5 25. 8 1007. 7 1024/16 921024/22 01 00 N 135 00 E ESE 1 27. 8 1009.8 1025/08 921025/06 00 00 N 135 10 E ESE 6 27.4 1007~ 7 1025/16 921027/05 03 00 N 134 00 E w 13 28.0 1008.0 1027/15 921027/12 04 00 N 134 00 E NW 10 25. 3 - 1009.4 1027/22 921027/20 05 00 N 134 00 E NW 5-6 26.1 1005. 5 1028/06 921028/05 06 14 N 134 01 E NNE 7 26.4 1006. 2 1028/15

- 22-

12. Problems by T.Kawano (10 August 1994)

1) Rosette sampl·er

Our rosette sampler did not work well from St.1 to St.3. The reason was the

power supply did not have enough voltage. We used a power transformer after

St.4~

2) Noises during CTD casting

There were two types of noises during the CTD casting. One was a shock-like

noise and data of pressure, conductivity and temperature became meaningless

value such as 9999.9. This noise occurred in the surface (less than 10m} of few

stations. The other was seen only in pressure data. .It was a spike-like and the

data shifted abruptly in 1 to 20 dbar and then became a normal (reasonable) value.

This noise was seen several times in almost every station.

We could not elucidate the cause of these noises.

3) Dissolved oxygen

We could not estimate the accuracy and precision of our dissolved oxygen data.

We did not have enough equipments for an accurate measurement of dissolved

oxygen. Since we used nominal values of the all volumetric equipments including

oxgen bottles and we did not make a blank determination of seawater as well as

that of regent, we guessed that our data did not meet with the WOGE onetime

standards.

4) Sample water salinity measurement

Although our Autosal 84008 was set to use with 50Hz AC, we used this

instrument with 60Hz AC. It caused an unstable reading with the range of +/- 20

digits. It was impossible for us to standardize the instrument and, consequently,

we had to give up an accurate measurement. The accuracy and precision of our

measurement might be within the order of 0.01 PSS.

-23-

Acknowledgements

by T.Kawano (10 August 1994)

The cruise participants thank very much to Captain Yukawa of RN KAIYO and

the crew for their support during the cruise.

This cruise have executed on the basis of the collaborative ocean research

framework between Japan Marine Science and Technology Center (JAMSTEC) and

Sadan Pengajian Dan Penerapan Teknologi (BPPT) since 1992.

This cruise is funded by the Japan-WOGE program with the Science and

Technology Agency of Japan under the special coordinated funds.

24-

(l)

\J :,

-t-' 4.00°N :;; 0

_J

0.00°

x41 x7 xe x5 x4 x3 x2 x1

x11

x12 x-40

x13

x1'4 x16

x18 x3G x15 x20

x17 x22 x19 xa8

x21

x23

x24 x26 x28 x» x:34

x25 x27 x2i x.32 xJS x36

128.00°E 132.00°E 136.00°E

Longitude

Fig. 1 ~1 CTD Station Locations

- 25 -

17:02:53 31-MAY-94 EPIC: ALLDAT

8.00°N

(l)

"U ::::,

·=-'= 4.00°N +-' 0 _J

124.00°E

Fig. 1-2

x63 x16x15 x14 x13 x12 x11 x10 x9 xB x7 x6 x5 x" xJ x2 x1

x17

x1B

x19

x20 x22 x24

x21 x26

x27

x.30 x49 x34 x.38

x31 x33 x35 x37 x39

x.ffl

x.-47

x62

x61

x60

x59

x58

xS'l

x50

x51

x'46 x52 x~ xS4

x45 x55

128.00°E 136.00°E

Longitude

X.61 Station Locations.

26

14:04:31 10-AUG-94 EPIC: XBT.DAT

,,,--...... L

0 _(}

-0 ......__,

Q) L ::; Cl) (fJ Q) L

()_

T em peratu re

0 --1---'------'-----..li.-----'---..i..---'------'---"-----+-

200

400 ~~

> 500

-;;;;:;;---1000 --

~s.6 -------3.4 -----------3.2

1500 ---- 3.0 -------------2.8

---- 2.6

---- -2.4

2000

3000

4000

5000

6000 -1-~~..--~---~.--~--~--,.~~....--~---~--r--~-t-

126.0

Fig. 4-la

128.0 130.0

Longitude 132.0

WOCE92 L.lNE 6N

-p-

134.0

r"',. L

0 _Q

v ..............,

(J) L ::J U) U) (J) L

CL

400

500

1000

1500

2000

3000

4000

5000

126.0

Salinity

.0.

~3,1,.f>4 ---------~!,,e, ~34.!>&-

---------34 .. 60

~34.62

128.0 130.0

Longitude 132.0

Fig. 4-Jb WOCE92 LINE 6N

- 28-

-----

134.0

Temperature

400 8.0

500

~ L 0

_Q 4.8 -0 ......__,,, 1000

tn Q) L 3.6 :J 3.6 3.4 rn 3.2 ----U) (]) 1500 3.0 ---L

Q_ 2.8

------2000

3000

4000

5000

0. 200. 400.

Distance (km)

Fig.4-2a WQCE92 LJNE PR24-A

- 29-

Salinity

200 34.6

D 400

(I

500

,,,,..--.... 34.54 L 0

..0 ------0 1000 34.54 ......._,,,

(l) 34.56 L :J (fJ 34.58 -----en (I) 1500 L

Q_

----2000

3000

4000

5000

0. 200. 400.

Distance (km)

Fig.4 2b WOCE92 LI-NE PR24-A

- 30

T em peratu re

0 -+-----------'-----i.....----.L--..;.__ __ ....._ 29~0

t------28.0---------

200

400 8.0 ~o~

500 .,--....

L

0 ...0 -0

H 1000 '--"'

Q) :::------L 3.8 3.6 ::s Cl) ·{" (/) 3. 0) 1500 3.~ L 1,.

(]_ 2,.6

2000 2.4~

3000

4000

5000

0. 200. 400.

Distance (km)

Fig. 4-3a WOCE92 LI NE PR24-B - 31-

Salinity

0

vv~~ ·> f>.0-- ~

200

~ ~~ 'ir~ ~ ~ \:: 400

500 ,.--......

L

0 _o -0 1000 '--""

(]) $4.!>6

L ::J U) 34.56 ----U)

1500 (]) $4:.60 L ()_

2000 34.62

3000 ~ 4000

5000

0. 200. 400.

Distance (km)

Fig.4-3b ·wocE92 LINE PR24-B

32-

,-....... L...

0 ..0 -0 ........_,..

(l) L... :) V) (/) Cl) L

(l_

T·emperature

0-r--------"'-----------------+-

i-----13.0-----

400 10.0

9.0

500

1000

1500

2.6

2000

4000

5000

6000 -+-----+--~--11r-----+-__;,._--__.__-~-----;-

130.o

Fig. 4-4a

132.0

Longitude

WOCE92 LINE 2N

- 33

134.0

~ L

0 ..0 -0 ....__,,

(l) L ::J en (f) (l) L

CL

Salinity

0 --t-____ ..__ ___ __,__ ____ .___ ___ __._ ___ -t_

200

~

~.8

400 34.7

500 ~

1000

1500

2000

3000

4000

5000

130.0

Fig. 4-4,b

34.54

34.54

34.56

34.58

34.60-----

34.62

34.650 . 34.655

34.660 34.665

132.Q

Longitude

WOCE92 LINE 2N

- 34-

134.0

,,,,,--.... L 0

..0 u '-/

Q) L :J fJJ en Q) L

()_

Temperature

0 -t------'------.JL--------1-------L-----J-

r--------29.0------------~

19.0 200 17.0

14.0 13 .. 0

u.o

400 10.0

500

1000 4:4

!:§ 3.6 3.4

1500 3.2

3.0 2.8

2.6

2.4 2000

l:AR 3000 --1.so

4000

5000

6000 --1<--~------~---'l'----~_.._----'ll--~--+-

130.0

Fig. 4-5a

132.0

Longitude

WOCE92 LINE 1 N

- 35-

134.0

,,,..--... L 0

..0 -0 '-../

(l) L :::5 (I) (/J (l) L

(l_

Salinity

0 -+-----..i-.----.L-----'-----"------+-

200

400

500

1000

1500

2000

3000

4000

5000

130.0

Fig. 4-5b

34.54

34.56

34.58

34.60

34.62

il:H§ 34.655 34.660

132.0

Longitude

WOCE92 LINE 1 N

- 36-

134.0

Temperature

Q--1---------------------------~

200

g.O

400 8.o

500 .,..--...

L 0

_Q

l~i -0 1000 .......__,,, 4.2

(1) 4.0 L 3.8 :J 3.6 (/) 3.4 (/)

1500 3.2 (1) a.o L

2.8 0... 2.6

2.4

2000 2

3000

4000

5000

6000 -+--~~~-'f-~~~-'f-~~~-+-~~~-'f-~~~-,-

1.0 3.0 5.0 Latitude

Fig.4-6a WQCE92 LINE 134E

- 37-

Salinity

400

500 ,...,.-.... 34.54

L 0

..0 -0 1000 34.54 .....__,,,

Q) 34.56 L :J (/) (/)

1500· 34.58 Q) L

------34.60 (L

34.62

2000 34.635 3t:8t8 34.650 34.655

3000

4000

5000

6000 --,1....11.___~~--+~~~---"--~~~...__~~~-*-~~~--+-

1.o 3.0 5.0

Latitude

Fig. 4-6b WOCE92 LINE 134E

- 38-

Geostrophic current velocity (m/s)

0 ' I '

' ' I ' I ' I \

' \ I

I I

200 I I

\, ,

\ I

' , , ""

0

400

500 ,,.--....

L 0

...0 0

-0 1000 ....__..,,,

(l) L :J U) I U)

1500 -(l) -o L

"' 0.... ,,

,I'

"' ' I' I \ I : \ \

I I i

t I

2000

3000

4000

5000

0. 200. 400.

Distance (km)

Fig. 4 7a WOCE92 LINE PR24-A

- 39

Geostrophic current velocity (m/s) ·

0 I I

\ ' \ \

' \

" ' ' \ I t 0

' ' \ \ ' 0 \ \ \ ·~ t ' 0 , I C\l

I I Q 0.20 200 I I ' I I , / I

" ,

I

" " ' I I

I , , / ,, ,,

" " 400

500 ' ' ________ ., ,

,,,,--.. , , L , ........ ---0 ~,,.,"

" _o , ' I t

-0

:) I • .......__,,,, 1000 \ , \ I ',.1

(1) L

0 :) (f) (f)

1500 0 (1) L

()_

2000 ' \

\

' \ ' I I I I I

3000 I I

4000

5000

0. 200. 400. Distance (km)

Fig. 4 7b WOCE92 LINE

40 -

SEA-BIRD ELECTRONICS, INC. 1808 136th Place N.E., Bellevue, Washington 98005 Telephone: (206) 643-9866 Telex: 292915 SBEI UR

TEMPERATURE CALIBRATION DAT A CALIBRATION DA TE: 29-Jan-93

SENSOR SERIAL NUMBER= 1086

a = C = f

0

3.67568906e-03 1. 46227944e-05

= 6021.05

b = d =

BATH TEMP (OC)

INSTRUMENT FREQ (Hz)

31.1972 23.0225 14.9819

6.9861 -1.0920 27.2076 18.9991 11. 0056

2.9898

11627.93 9961.29 8490.88 7186.81 6021. 05

10792.15 9205.18 7823.25 6591. 80

6.01367362e-04 1.81610487e-06

INST TEMP ( oc)

31.1976 23.0227 14.9818

6.9853 -1. 0922 27.2066 18.9998 11.0057

2.9905

f Temperature J /{a + b[ln(f /f)] + c[ln2(f /OJ + d[ln 3(f /f)]} - 273.15 (°C) I· ~ Residual = instrument temperature - bath temperature t ~ ~ li-

t t i

0.020

0.010

RESIDUAL

(Degrees C)

0.000

-0.010

-0 .020 -5

® .G) Q

EB

-'"

0

(! Q~ rf C: @s>

fB \!\ EB & '-'

19

I I

I 5 10 15 20

TEMPERATURE (Degree_s C)

Fig. 7 1

- 41

I ®

I ® 0 0

Lil EB e

25

j

l I

30

RESIDUAL ( oc)

0.00043 0.00022

-0.00014 -0.00080 -0.00017 -0.00097

® 0

EB A

0.00067 0.00006 0.00070

I

I l

I

I I I

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EB 11-08-90 0 02-May-91 ® 04-Mar-92 e 29-Jan-93

POST CRUISE CALIBRATION

SEA-BIRD ELECTRONICS, INC. 1808 136th Place N.E., Bellevue, Washington 98005 Telephone: (206) 643-9866 Telex: 292915 SBEI UR

CONDUCTIVITY CALIBRATION DA TA CALIBRATION DATE: 04-Feb-93

PSS 1978: C(35~ 15,0) 4.2914 Siemens/meter

SENSOR SERIAL NUMBER = 771

a = l.18134907e-05 b = 4.96733453e-Ol C = -4.19121085e+OO d = 2.66197995e-05 m 4.2

BATH TEMP BATH SAL BATH COND INST FREQ INST COND RESIDUAL

(OC} (0 /oo) (Siemens/m) (kHz) {Siemens/m) {Siemens/m)

30.9664 35.1132 5.95546 11. 30040 5.95549 0.00003 23.9476 35.1157 5. 21215 10.62441 5.21212 -0.00003 15.1258 35.1152 4.31643 9.74647 4.31638 -0.00005

7.0047 35.1150 3.53915 8.91361 3.53912 -0.00003 -1.0324 35.1144 2.82359 8.07032 2.82371 0.00012 27.0202 15.3596 2.62557 7.82054 2.62568 0.00011 18.8396 15.3596 2.21808 7.27939 2.21803 -0.00005 10.9148 15.3596 1. 84288 6.74262 1.84278 -0.00010

2.9766 15.3596 1. 49043 6.19605 1.49041 -0.00002 0.0000 0.0000 0.00000 2.90446 0.00002 0.00002

Conductivity m 2 -8

(af + bf + c + dt) / [ JO(J - 9.57(10 )p)] Siemens/meter, where p = pressure in dbars

Residual instrument conductivity - bath conductivity

NOTE: Multiply Siemens/meter by IO to obtain mmho/cm

0.0020

0.0010

RESIDUAL

(Siemens/m)

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EB 04-Mar-92 8 29-Jan-93 ® 04-Feb-93

CALIBRATION f.FTER CLEANING AND

REPLATINIZING CELL

SBE-9/11 Preassure sensor Serial Number S41396

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Cruise Report for PR24 by RIV KAIYO from 6 Oct. 1992 to 29 Oct. 1992 Issued on 10 August 1994 Published by Ocean Research Department

Japan Marine Science and Technology Center Address : 2-15 Natsushima, Yokosuka, 237 Japan

Telephone Fax

468-66-3811 : 468-65-3202 Printed by San-ai Insatsu Co. Ltd.