Survey Identifier: DSDP37GC

Format Acronym: MGD77
Data Center File Number: 15050035
Parameters Surveyed Code: 55113
File Creation Date (yyyymmdd): 19791124
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: D/V GLOMAR CHALLENGER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): AUMENTO F.,MELSON W.
Project: DEEPSEA DRILL.LG 37 <NSF>
Survey Departure Date (yyyymmdd): 19740530
Port of Departure: RIO DE JANEIRO,BRAZIL
Survey Arrival Date (yyyymmdd): 19740730
Port of Arrival: DUBLIN,IRELAND
Navigation Instrumentation: SATNAV,MANUAL ENTRY GYRO AND SPD CHANGES
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: 12KHZ/GIFFT RECORDER/WIDE(60DEG)BEAM
Additional Forms of Bathymetric Data: ANAL.RECORDS,CARDS,35MMFILM
Magnetics Instrumentation: VARIAN MFD PROTON PRECESSION MOD 4970
Additional Forms of Magnetics Data: ANAL.RECORDS,CARDS,35MMFILM
Gravity Instrumentation: NONE COLLECTED
Seismic Instrumentation: 20TO300CU.IN.AIRGUN,10-300HZ,EDO PSR REC
Formats of Seismic Data: ANAL.RECORDS,35MM MICROFILM
Topmost Latitude of Survey: +51
Bottommost Latitude: -01
Leftmost Longitude: -036
Rightmost Longitude: -010
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: 1SECONDSWEEP
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
Interpolation Scheme: 5 MINUTE INTERVAL
General Digitizing Rate of Magnetics: 050
General Sampling Rate of Magnetics: 06
Reference Field Code: 03
Reference Field: IGRF 1965
Method of Applying Residual Field: LIN.INTERP.AT 30DEG C/C OR 500MI ALONG TRACK
Number of Data Records: 4891

Min/Max Data Record:
Date: 1974 06 07
Latitude: -0.75360
Longitude: -35.66660
Bathymetry, 2- Way Traveltime: 002374
Bathymetry, Corrected Depth: 178.0
Magnetics Total Field, 1st Sensor: 279100
Magnetics Residual Field: -11050

Min/Max Data Record:
Date: 1974 07 27
Latitude: +50.27310
Longitude: -10.76320
Bathymetry, 2- Way Traveltime: 089000
Bathymetry, Corrected Depth: 6788.0
Magnetics Total Field, 1st Sensor: 478350
Magnetics Residual Field: +12300