Survey Identifier: DSDP83GC
Format Acronym: MGD77
Data Center File Number: 15050083
Parameters Surveyed Code: 55155
File Creation Date (yyyymmdd): 19820310
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: D/V GLOMAR CHALLENGER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): ANDERSON R.,HONNOREZ J.
Project: DEEPSEA DRILL.LG83
Survey Departure Date (yyyymmdd): 19811120
Port of Departure: BALBOA,PANAMA
Survey Arrival Date (yyyymmdd): 19820104
Port of Arrival: BALBOA,PANAMA
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: +08
Bottommost Latitude: +01
Leftmost Longitude: -084
Rightmost Longitude: -079
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: 04
Reference Field: IGRF 1975
Method of Applying Residual Field: LIN. INTERP.POINTS WITHIN ONE DEGREE SQUARE
Number of Data Records: 1162
Min/Max Data Record:
Date: 1981 11 20
Latitude: +1.22660
Longitude: -83.73001
Bathymetry, 2- Way Traveltime: 001825
Bathymetry, Corrected Depth: 137.0
Magnetics Total Field, 1st Sensor: 324160
Magnetics Residual Field: -02890
Min/Max Data Record:
Date: 1982 01 04
Latitude: +7.33100
Longitude: -79.98440
Bathymetry, 2- Way Traveltime: 055425
Bathymetry, Corrected Depth: 4156.0
Magnetics Total Field, 1st Sensor: 358660
Magnetics Residual Field: +03120