Survey Identifier: DSDP80GC
Format Acronym: MGD77
Data Center File Number: 15050080
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19820921
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: D/V GLOMAR CHALLENGER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): DE GRACIANSKY P.C.,POAG C.W.
Project: DEEPSEA DRILL.LG80 <NSF>
Survey Departure Date (yyyymmdd): 19810609
Port of Departure: BREST,FRANCE
Survey Arrival Date (yyyymmdd): 19810716
Port of Arrival: SOUTHHAMPTON,ENGLAND
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: +52
Bottommost Latitude: +48
Leftmost Longitude: -014
Rightmost Longitude: -008
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: 1343
Min/Max Data Record:
Date: 1981 06 09
Latitude: +48.51500
Longitude: -13.63021
Bathymetry, 2- Way Traveltime: 005275
Bathymetry, Corrected Depth: 397.0
Magnetics Total Field, 1st Sensor: 472890
Magnetics Residual Field: -04380
Min/Max Data Record:
Date: 1981 07 16
Latitude: +51.84830
Longitude: -8.18541
Bathymetry, 2- Way Traveltime: 059950
Bathymetry, Corrected Depth: 4521.0
Magnetics Total Field, 1st Sensor: 479670
Magnetics Residual Field: +01510