Survey Identifier: DSDP90GC


Format Acronym: MGD77
Data Center File Number: 15050090
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19830427
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: D/V GLOMAR CHALLENGER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): KENNETT J.P.,VON DER BORCH C.
Project: DEEPSEA DRILL.LG90 <NSF OCE-24472>
Survey Departure Date (yyyymmdd): 19821202
Port of Departure: NOUMEA,NEW CALEDONIA
Survey Arrival Date (yyyymmdd): 19830108
Port of Arrival: WELLINGTON, NEW ZEALAND
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: -21
Bottommost Latitude: -46
Leftmost Longitude: +161
Rightmost Longitude: +176
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: 3660

Min/Max Data Record:
Date: 1982 12 02
Latitude: -45.53250
Longitude: +161.20671
Bathymetry, 2- Way Traveltime: 002300
Bathymetry, Corrected Depth: 173.0
Magnetics Total Field, 1st Sensor: 483880
Magnetics Residual Field: -05190

Min/Max Data Record:
Date: 1983 01 08
Latitude: -21.18500
Longitude: +175.35661
Bathymetry, 2- Way Traveltime: 047550
Bathymetry, Corrected Depth: 3565.0
Magnetics Total Field, 1st Sensor: 590860
Magnetics Residual Field: +08760