Survey Identifier: DSDP88GC
Format Acronym: MGD77
Data Center File Number: 15050088
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19830224
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: D/V GLOMAR CHALLENGER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): DUENNEBIER F.K.,STEPHEN R.D.
Project: DEEPSEA DRILL.LG88 <NSF OCE80-24472>
Survey Departure Date (yyyymmdd): 19820820
Port of Departure: HAKODATE,JAPAN
Survey Arrival Date (yyyymmdd): 19820918
Port of Arrival: YOKOHAMA,JAPAN
Navigation Instrumentation: SATNAV,MANUAL ENTRY GYRO AND SPD CHANGES
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: 3.5-12KHZ/EDO 550A RECORDERS/WIDE BEAM
Additional Forms of Bathymetric Data: ANAL.RECORDS,CARDS,35MMFILM
Magnetics Instrumentation: GEOMETRICS MAGNETOMETER MOD G-801/3
Additional Forms of Magnetics Data: ANAL.RECORDS,CARDS,35MMFILM
Seismic Instrumentation: 20TO300CU.IN.AIRGUN,10-300HZ,EDO 550 REC
Formats of Seismic Data: ANAL.RECORDS,35MM MICROFILM
Topmost Latitude of Survey: +45
Bottommost Latitude: +36
Leftmost Longitude: +142
Rightmost Longitude: +160
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: 1SECONDSWEEP
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: 5 MINUTE INTERVAL
General Digitizing Rate of Magnetics: 050
General Sampling Rate of Magnetics: 06
Reference Field Code: 80
Reference Field: IGRF 1980
Method of Applying Residual Field: LIN. INTERP.POINTS WITHIN ONE DEGREE SQUARE
Number of Data Records: 4531
Min/Max Data Record:
Date: 1982 08 20
Latitude: +36.14801
Longitude: +142.81701
Bathymetry, 2- Way Traveltime: 012975
Bathymetry, Corrected Depth: 953.0
Magnetics Total Field, 1st Sensor: 448160
Magnetics Residual Field: -03850
Min/Max Data Record:
Date: 1982 09 18
Latitude: +44.03460
Longitude: +159.91761
Bathymetry, 2- Way Traveltime: 097225
Bathymetry, Corrected Depth: 7385.0
Magnetics Total Field, 1st Sensor: 480520
Magnetics Residual Field: +05370