| MARINE SURVEY GENERAL INFORMATION |
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| GENERAL |
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Voyage No. : |
YK02-04 |
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JAMSTEC
/ others: |
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| AREA |
Hana ridge |
LINE No. |
Line8 |
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| FIRST SP No. |
1 |
LAST SP No. |
687 |
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| DATE/TIME |
13:18:00 07/16/2002 |
DATE/TIME |
17:07:14 07/16/2002 |
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| WEATHER |
Cloudy |
WEATHER |
Cloudy |
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| SEA CONDITION |
Sea rough |
SEA CONDITION |
Sea rough |
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| Latitude |
20°43.9960 |
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Latitude |
21°00.02730 |
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| Longitude |
155°27.49300 |
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Longitude |
155°14.57650 |
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| SEA DEPTH |
－ |
m |
SEA DEPTH |
－ |
m |
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| SOG |
5 |
knt |
SOG |
5.5 |
knt |
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| Wind Lebel |
Strong breeze |
Wind Lebel |
Strong breeze |
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| S.P. INTERVAL |
20 |
sec |
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6.6～ |
m |
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| CABLE DEPTH |
8.6～10.5 |
m |
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| SOURCE |
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| GUN TYPE |
GI-GUN (Seismic systems, inc.) |
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| VOLUME |
350×1 |
cu.in |
([G]245cu.in, [ I ] 105cu.in) |
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| AIR PRESSURE |
1700 |
psi |
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11.724 |
Mpa) |
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| GI DELAY TIME |
35.0 |
msec |
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| RECORDING |
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| SAMPLE FREQENCY |
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1000 |
Hz |
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| RECORD LENGTH |
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10000 |
msec |
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| WATER
DELAY |
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0 |
msec |
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| Processing (SPW) |
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| ①SDC |
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| ②Bandpass |
Lo cut (Hz) |
Lo pass (Hz) |
Hi pass (Hz) |
Hi cut (Hz) |
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| ③AGC |
Top window length (msec) |
Bottom window length |
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| STREAMER |
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| ACTIVE STREAMER |
65 |
m |
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| HYDROPHONE TYPE |
SIG 16 |
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| SENSITIVITY |
-90db, re1V/μ bar, ±1db |
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| No. of HYDROPHONE GROUP |
48 |
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| FRONT STRETCH
SECTION |
135 |
m |
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| FILE NAME |
Line8 |
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| REMARKS |
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| DATE/TIME(Start) |
Latitude |
20°43.81310 |
N |
DATE/TIME(End) |
Latitude |
0 |
N |
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| 12:00:00 07/16/2002 |
Longitude |
155°20.19700 |
E |
13:07:00
07/16/2002 |
Longitude |
0 |
E |
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| SEA DEPTH |
3284 |
m |
SEA DEPTH |
0 |
m |
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Shot No. |
1 |
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Shot No. |
34 |
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| LAYOUT
OF STREAMER CABLE |
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R/V YOKOSUKA |
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