Survey Identifier: DSDP84GC
Format Acronym: MGD77
Data Center File Number: 15050084
Parameters Surveyed Code: 55153
File Creation Date (yyyymmdd): 19820630
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: D/V GLOMAR CHALLENGER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): AUBUOIN J.,VON HUENE R.
Project: DEEPSEA DRILL.LG84 <NSF OCE80-24472>
Survey Departure Date (yyyymmdd): 19820112
Port of Departure: BALBOA,PANAMA
Survey Arrival Date (yyyymmdd): 19820225
Port of Arrival: MANZANILLO,MEXICO
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: +20
Bottommost Latitude: +07
Leftmost Longitude: -105
Rightmost Longitude: -080
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: 6697
Min/Max Data Record:
Date: 1982 01 12
Latitude: +7.09540
Longitude: -104.37499
Bathymetry, 2- Way Traveltime: 001300
Bathymetry, Corrected Depth: 97.0
Magnetics Total Field, 1st Sensor: 356240
Magnetics Residual Field: -02130
Min/Max Data Record:
Date: 1982 02 25
Latitude: +19.04540
Longitude: -80.44450
Bathymetry, 2- Way Traveltime: 080725
Bathymetry, Corrected Depth: 6109.0
Magnetics Total Field, 1st Sensor: 397820
Magnetics Residual Field: +02330