Survey Identifier: V2305


Format Acronym: MGD77
Data Center File Number: 01030089
Parameters Surveyed Code: 55533
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 23, LEG 5
Survey Departure Date (yyyymmdd): 19661015
Port of Departure: GLASGOW, SCOTLAND
Survey Arrival Date (yyyymmdd): 19661103
Port of Arrival: LAS PALMAS, CANARY ISLANDS
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.IN.AIRGUN,EEL, DRUM RECORDER
Formats of Seismic Data: TWO, 2-CHANNEL SHEET RECORDS
Topmost Latitude of Survey: +57
Bottommost Latitude: +28
Leftmost Longitude: -029
Rightmost Longitude: -004
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: 4534

Min/Max Data Record:
Date: 1966 10 15
Latitude: +28.15500
Longitude: -28.93000
Bathymetry, 2- Way Traveltime: 000325
Bathymetry, Corrected Depth: 24.0
Magnetics Total Field, 1st Sensor: 386850
Magnetics Residual Field: -06420
Free-Air Anomaly: -0753

Min/Max Data Record:
Date: 1966 11 03
Latitude: +56.52710
Longitude: -4.83330
Bathymetry, 2- Way Traveltime: 073175
Bathymetry, Corrected Depth: 5556.0
Magnetics Total Field, 1st Sensor: 504240
Magnetics Residual Field: +12880
Free-Air Anomaly: +2570