Survey Identifier: DSDP38GC
Format Acronym: MGD77
Data Center File Number: 15050036
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): TALWANI M.,UDINSEV G.
Project: DEEPSEA DRILL.LG 38 <NSF>
Survey Departure Date (yyyymmdd): 19740804
Port of Departure: DUBLIN,IRELAND
Survey Arrival Date (yyyymmdd): 19740923
Port of Arrival: AMSTERDAM,NETHERLANDS
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: +77
Bottommost Latitude: +58
Leftmost Longitude: -014
Rightmost Longitude: +009
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: 4691
Min/Max Data Record:
Date: 1974 08 05
Latitude: +58.07500
Longitude: -13.54680
Bathymetry, 2- Way Traveltime: 001274
Bathymetry, Corrected Depth: 96.0
Magnetics Total Field, 1st Sensor: 494550
Magnetics Residual Field: -08900
Min/Max Data Record:
Date: 1974 09 23
Latitude: +76.14830
Longitude: +8.82640
Bathymetry, 2- Way Traveltime: 047324
Bathymetry, Corrected Depth: 3486.0
Magnetics Total Field, 1st Sensor: 537750
Magnetics Residual Field: +12450