Survey Identifier: DSDP50GC
Format Acronym: MGD77
Data Center File Number: 15050049
Parameters Surveyed Code: 55113
File Creation Date (yyyymmdd): 19791129
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: D/V GLOMAR CHALLENGER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): LANCELOT Y.,WINTERER E.L.
Project: DEEPSEA DRILL.LG 50 <NSF>
Survey Departure Date (yyyymmdd): 19760911
Port of Departure: FUNCHAL,MADERIA ISLAND
Survey Arrival Date (yyyymmdd): 19761110
Port of Arrival: FUNCHAL,MADERIA ISLAND
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: +33
Bottommost Latitude: +30
Leftmost Longitude: -017
Rightmost Longitude: -010
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: 03
Reference Field: IGRF 1965
Method of Applying Residual Field: LIN. INTERP.POINTS WITHIN ONE DEGREE SQUARE
Number of Data Records: 2203
Min/Max Data Record:
Date: 1976 09 11
Latitude: +30.95570
Longitude: -16.90660
Bathymetry, 2- Way Traveltime: 001225
Bathymetry, Corrected Depth: 92.0
Magnetics Total Field, 1st Sensor: 400070
Magnetics Residual Field: -00960
Min/Max Data Record:
Date: 1976 11 10
Latitude: +32.98500
Longitude: -10.80160
Bathymetry, 2- Way Traveltime: 058250
Bathymetry, Corrected Depth: 4402.0
Magnetics Total Field, 1st Sensor: 419810
Magnetics Residual Field: +10860