Survey Identifier: DSDP79GC
Format Acronym: MGD77
Data Center File Number: 15050079
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19811105
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: D/V GLOMAR CHALLENGER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): HINZ K.,WINTERER E.L.
Project: DEEPSEA DRILL.LG79
Survey Departure Date (yyyymmdd): 19810415
Port of Departure: LAS PALMAS,CANARY IS.
Survey Arrival Date (yyyymmdd): 19810529
Port of Arrival: BREST,FRANCE
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: +48
Bottommost Latitude: +28
Leftmost Longitude: -016
Rightmost Longitude: -006
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: 2763
Min/Max Data Record:
Date: 1981 04 15
Latitude: +28.16099
Longitude: -15.32591
Bathymetry, 2- Way Traveltime: 002250
Bathymetry, Corrected Depth: 169.0
Magnetics Total Field, 1st Sensor: 385000
Magnetics Residual Field: -04350
Min/Max Data Record:
Date: 1981 05 29
Latitude: +47.29920
Longitude: -6.03609
Bathymetry, 2- Way Traveltime: 064750
Bathymetry, Corrected Depth: 4897.0
Magnetics Total Field, 1st Sensor: 467270
Magnetics Residual Field: +08060