Survey Identifier: DSDP44GC
Format Acronym: MGD77
Data Center File Number: 15050042
Parameters Surveyed Code: 55113
File Creation Date (yyyymmdd): 19791127
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: D/V GLOMAR CHALLENGER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): BENSON W.E.,SHERIDAN R.E.
Project: DEEPSEA DRILL.LG 44 <NSF>
Survey Departure Date (yyyymmdd): 19750815
Port of Departure: NORFOLK,VIRGINIA
Survey Arrival Date (yyyymmdd): 19750929
Port of Arrival: NORFOLK,VIRGINIA
Navigation Instrumentation: SATNAV,MANUAL ENTRY GYRO AND SPD CHANGES
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: 12KHZ/EDO 550A RECORDER/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
Gravity Instrumentation: NONE COLLECTED
Seismic Instrumentation: 20TO300CU.IN.AIRGUN,10-300HZ,EDO 550 REC
Formats of Seismic Data: ANAL.RECORDS,35MM MICROFILM
Topmost Latitude of Survey: +37
Bottommost Latitude: +28
Leftmost Longitude: -077
Rightmost Longitude: -069
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.POINTS WITHIN ONE DEGREE SQUARE
Number of Data Records: 4580
Min/Max Data Record:
Date: 1975 08 16
Latitude: +28.20440
Longitude: -76.30620
Bathymetry, 2- Way Traveltime: 002746
Bathymetry, Corrected Depth: 205.0
Magnetics Total Field, 1st Sensor: 498220
Magnetics Residual Field: -05950
Min/Max Data Record:
Date: 1975 09 29
Latitude: +36.64660
Longitude: -69.32910
Bathymetry, 2- Way Traveltime: 070372
Bathymetry, Corrected Depth: 5336.0
Magnetics Total Field, 1st Sensor: 547820
Magnetics Residual Field: -00590