Survey Identifier: DSDP76GC
Format Acronym: MGD77
Data Center File Number: 15050075
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): GRADSTEIN F.,SHERIDAN R.
Project: DEEPSEA DRILL.LG76 <NSF>
Survey Departure Date (yyyymmdd): 19801012
Port of Departure: NORFOLK,VIRGINIA
Survey Arrival Date (yyyymmdd): 19801220
Port of Arrival: FORT LAUDERDALE,FLORIDA
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: +36
Bottommost Latitude: +25
Leftmost Longitude: -080
Rightmost Longitude: -074
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: 5583
Min/Max Data Record:
Date: 1980 10 12
Latitude: +25.77150
Longitude: -79.91330
Bathymetry, 2- Way Traveltime: 000350
Bathymetry, Corrected Depth: 26.0
Magnetics Total Field, 1st Sensor: 478720
Magnetics Residual Field: -07600
Min/Max Data Record:
Date: 1980 12 20
Latitude: +35.04561
Longitude: -74.79849
Bathymetry, 2- Way Traveltime: 066225
Bathymetry, Corrected Depth: 5011.0
Magnetics Total Field, 1st Sensor: 532830
Magnetics Residual Field: -00790