Survey Identifier: 80001711
Format Acronym: MGD77
Data Center File Number: 67010088
Parameters Surveyed Code: 55111
File Creation Date (yyyymmdd): 19831005
Source Institution: CNEXO
Country: FRANCE
Platform Name: JEAN CHARCOT
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): J.FRANCHETEAU
Project: SEARISE - CH112
Funding: CNEXO
Survey Departure Date (yyyymmdd): 19800704
Port of Departure: HAO
Survey Arrival Date (yyyymmdd): 19800729
Port of Arrival: GUAYAQUIL
Navigation Instrumentation: SAT MAGNAVOX
Geodetic Datum/Position: DEAD RECKONING BASED ON SAT FIXES
Bathymetry Instrumentation: SEA-BEAM
Additional Forms of Bathymetric Data: ANALOG RECORDS
Magnetics Instrumentation: PROTON PRECESSION MAG
Additional Forms of Magnetics Data: ANALOG RECORDS
Topmost Latitude of Survey: -02
Bottommost Latitude: -28
Leftmost Longitude: -141
Rightmost Longitude: -080
General Digitizing Rate of Bathymetry: 12
General Sampling Rate of Bathymetry: 4 SECONDS
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: LINEAR INTERPOLATION
General Digitizing Rate of Magnetics: 13
General Sampling Rate of Magnetics: 10
Magnetic Sensor Tow Distance: 200
Sensor Depth: 00100
Reference Field: IGRF-80
Method of Applying Residual Field: INTERPOLATION BETWEEN NAVIGATION DATA
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNATIONAL 30
Number of Data Records: 29464
Min/Max Data Record:
Date: 1980 07 04
Latitude: -27.15300
Longitude: -140.93600
Bathymetry, Corrected Depth: 401.0
Magnetics Total Field, 1st Sensor: 293060
Magnetics Residual Field: -00698
Min/Max Data Record:
Date: 1980 07 29
Latitude: -2.99680
Longitude: -80.90120
Bathymetry, Corrected Depth: 4855.0
Magnetics Total Field, 1st Sensor: 359410
Magnetics Residual Field: +03336