Survey Identifier: DSDP91GC
Format Acronym: MGD77
Data Center File Number: 15050091
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19830304
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: D/V GLOMAR CHALLENGER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): MENARD W.,NATLAND J.
Project: DEEPSEA DRILL.LG91 <NSF OCE80-24472>
Survey Departure Date (yyyymmdd): 19830115
Port of Departure: WELLINGTON,NEW ZEALAND
Survey Arrival Date (yyyymmdd): 19830220
Port of Arrival: PAPEETE,TAHITI
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: -17
Bottommost Latitude: -42
Leftmost Longitude: +175
Rightmost Longitude: -150
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: 10318
Min/Max Data Record:
Date: 1983 01 15
Latitude: -41.86750
Longitude: -179.99169
Bathymetry, 2- Way Traveltime: 008450
Bathymetry, Corrected Depth: 636.0
Magnetics Total Field, 1st Sensor: 373480
Magnetics Residual Field: -05610
Min/Max Data Record:
Date: 1983 02 20
Latitude: -17.73940
Longitude: +179.99641
Bathymetry, 2- Way Traveltime: 079125
Bathymetry, Corrected Depth: 5981.0
Magnetics Total Field, 1st Sensor: 573780
Magnetics Residual Field: +09320