Survey Identifier: V2207


Format Acronym: MGD77
Data Center File Number: 01030084
Parameters Surveyed Code: 55530
File Creation Date (yyyymmdd): 19890703
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: U.S.A.
Platform Name: VEMA
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): T. AITKEN
Project: CRUISE 22, LEG 7
Survey Departure Date (yyyymmdd): 19660525
Port of Departure: DAKAR, SENGAL
Survey Arrival Date (yyyymmdd): 19660613
Port of Arrival: PIERMONT, N. Y.
Navigation Instrumentation: SEXTANT
Geodetic Datum/Position: 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.IN.AIRGUN,EEL, DRUM RECORDER
Formats of Seismic Data: TWO, 2-CHANNEL SHEET RECORDS
Topmost Latitude of Survey: +41
Bottommost Latitude: +14
Leftmost Longitude: -074
Rightmost Longitude: -017
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 NAV. PTS.
General Digitizing Rate of Gravity: 100
General Sampling Rate of Gravity: 00
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNATIONAL1930
Reference System Code: 2
Reference System: POTSDAM SYSTEM
Additional Documentation: 06 - 12 KHZ. WIDE BEAM (60 DEG) 1 SECOND SWEEP
Number of Data Records: 2926

Min/Max Data Record:
Date: 1966 05 25
Latitude: +14.23920
Longitude: -73.85830
Bathymetry, 2- Way Traveltime: 000325
Bathymetry, Corrected Depth: 24.0
Magnetics Total Field, 1st Sensor: 327500
Magnetics Residual Field: -06400
Free-Air Anomaly: -0455

Min/Max Data Record:
Date: 1966 06 13
Latitude: +40.45000
Longitude: -17.37500
Bathymetry, 2- Way Traveltime: 086250
Bathymetry, Corrected Depth: 6568.0
Magnetics Total Field, 1st Sensor: 563350
Magnetics Residual Field: +09340
Free-Air Anomaly: +1464