Survey Identifier: 74004921
Format Acronym: MGD77
Data Center File Number: 67010052
Parameters Surveyed Code: 55000
File Creation Date (yyyymmdd): 19920310
Source Institution: IFREMER
Country: FRANCE
Platform Name: JEAN CHARCOT
Platform Type Code: 1
Platform Type: SHIP
Project: NORGE 2
Funding: IFREMER
Survey Departure Date (yyyymmdd): 19740926
Survey Arrival Date (yyyymmdd): 19741014
Topmost Latitude of Survey: +70
Bottommost Latitude: +48
Leftmost Longitude: -007
Rightmost Longitude: +014
General Digitizing Rate of Bathymetry: 025
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
General Digitizing Rate of Magnetics: 025
Magnetic Sensor Tow Distance: 0200
Sensor Depth: 00100
Additional Documentation: OBSERVED PARAMETERS : POSITION LINEARLY INTERPOLATED IN FUNCTION OF TIME, SYNCHRONIZED PARAMETERS : VALUES INTERPOLATED LINEARLY IN FUNCTION OF TIME, EOTVOS CORRECTION : CAP + SPEED DETERMINED LINEARLY FROM THE NAVIGATION POINTS, DGRF : HARMONIC COEFFICIENTS COMPUTED ONCE (LINEARLY) AT THE DATE OF THE FIRST, OBSERVED DATA FOR EACH CRUISE, ECHO SOUNDING CORRECTION TABLES - 3RD ED. D.J.T. CARTER, NP 139 HYFROGRAPHIC DEPARTMENT - MINISTRY OF DEFENSE - UK 1980
Number of Data Records: 9529
Min/Max Data Record:
Date: 1974 09 26
Latitude: +48.33220
Longitude: -6.32540
Bathymetry, 2- Way Traveltime: 000244
Bathymetry, Corrected Depth: 18.0
Magnetics Total Field, 1st Sensor: 499030
Magnetics Residual Field: -04110
Min/Max Data Record:
Date: 1974 10 14
Latitude: +69.85840
Longitude: +14.04250
Bathymetry, 2- Way Traveltime: 043548
Bathymetry, Corrected Depth: 3211.0
Magnetics Total Field, 1st Sensor: 524130
Magnetics Residual Field: +04160