Survey Identifier: V3014


Format Acronym: MGD77
Data Center File Number: 01030173
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19890703
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: USA
Platform Name: VEMA
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): DENNIS HAYES
Project: CRUISE V30, LEG 14
Funding: (SEE ADD DOC / 19)
Survey Departure Date (yyyymmdd): 19731204
Port of Departure: LAS PALMAS, GRAN CANARIE
Survey Arrival Date (yyyymmdd): 19731229
Port of Arrival: DAKAR, SENEGAL, WEST AFRICA
Navigation Instrumentation: SATELLITE/ SEXTANT
Geodetic Datum/Position: SATELLITE/ DEAD RECKONING
Bathymetry Instrumentation: (SEE ADD DOC / 18)
Additional Forms of Bathymetric Data: ANALOG RECORDS
Magnetics Instrumentation: L-DGO MFG PROTON-PRECESSION
Additional Forms of Magnetics Data: ANALOG RECORDS
Gravity Instrumentation: GRAF-ASKANIA GSS2-12
Additional Forms of Gravity Data: ANALOG RECORDS
Seismic Instrumentation: L-DGO 25CU-IW-AIRGUN,EEL,DRUM RECORDER
Formats of Seismic Data: TWO,2-CHANNEL SHEET RECORDS
Topmost Latitude of Survey: +30
Bottommost Latitude: +14
Leftmost Longitude: -025
Rightmost Longitude: -015
General Digitizing Rate of Bathymetry: 060
General Sampling Rate of Bathymetry: ONE SECOND
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
Interpolation Scheme: NONE
General Digitizing Rate of Magnetics: 060
General Sampling Rate of Magnetics: 06
Reference Field Code: 03
Reference Field: IGRF-65
Method of Applying Residual Field: LINEAR INTERPOLATION BETWEEN TWO PTS
General Digitizing Rate of Gravity: 100
General Sampling Rate of Gravity: 00
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNAT'L 1930
Reference System Code: 2
Reference System: POTSDAM SYSTEM
Additional Documentation: 06 -3.5 AND 12 KHZ, WIDE BEAM (60 DEG), 1 SECOND SWEEP, 03- NSF GA2781 AND NSF GA35463X
Number of Data Records: 8049

Min/Max Data Record:
Date: 1973 12 04
Latitude: +14.61400
Longitude: -24.01030
Bathymetry, 2- Way Traveltime: 000275
Bathymetry, Corrected Depth: 21.0
Magnetics Total Field, 1st Sensor: 330540
Magnetics Residual Field: -02510
Free-Air Anomaly: -0710

Min/Max Data Record:
Date: 1973 12 29
Latitude: +29.39920
Longitude: -15.35900
Bathymetry, 2- Way Traveltime: 067900
Bathymetry, Corrected Depth: 5140.0
Magnetics Total Field, 1st Sensor: 400730
Magnetics Residual Field: +06650
Free-Air Anomaly: +0927