Survey Identifier: DSDP82GC
Format Acronym: MGD77
Data Center File Number: 15050082
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: D/V GLOMAR CHALLENGER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): BOUGAULT H.,CANDE S.C.
Project: DEEPSEA DRILL.LG82
Survey Departure Date (yyyymmdd): 19810919
Port of Departure: PONTA DELGADA,AZORES
Survey Arrival Date (yyyymmdd): 19811112
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: +40
Bottommost Latitude: +09
Leftmost Longitude: -080
Rightmost Longitude: -025
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
Additional Documentation: RE-PROCESSED BY GEOLOGICAL DATA CENTER, SCRIPPS INSTITUTION OF OCEANOGRAPHY, IN 1991 TO REMOVE TIME ERRORS
Number of Data Records: 5792
Min/Max Data Record:
Date: 1981 09 19
Latitude: +9.76667
Longitude: -79.65000
Bathymetry, 2- Way Traveltime: 004333
Bathymetry, Corrected Depth: 326.0
Magnetics Total Field, 1st Sensor: 370010
Magnetics Residual Field: -08726
Min/Max Data Record:
Date: 1981 11 12
Latitude: +39.07611
Longitude: -25.81667
Bathymetry, 2- Way Traveltime: 098707
Bathymetry, Corrected Depth: 7553.0
Magnetics Total Field, 1st Sensor: 460700
Magnetics Residual Field: +13205