Survey Identifier: 90001611
Format Acronym: MGD77
Data Center File Number: 67010209
Parameters Surveyed Code: 50000
File Creation Date (yyyymmdd): 19930826
Source Institution: IFREMER
Country: FRANCE
Platform Name: JEAN CHARCOT
Platform Type Code: 1
Platform Type: SHIP
Funding: IFREMER
Survey Departure Date (yyyymmdd): 19900731
Survey Arrival Date (yyyymmdd): 19900901
Bathymetry Instrumentation: VERTICAL BEAM FROM GIC SEABEAM
Topmost Latitude of Survey: +33
Bottommost Latitude: -34
Leftmost Longitude: -020
Rightmost Longitude: +019
General Digitizing Rate of Bathymetry: 011
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
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: 43357
Min/Max Data Record:
Date: 1990 07 31
Latitude: -33.96228
Longitude: -19.52888
Bathymetry, 2- Way Traveltime: 001291
Bathymetry, Corrected Depth: 97.0
Min/Max Data Record:
Date: 1990 09 01
Latitude: +32.64361
Longitude: +18.40607
Bathymetry, 2- Way Traveltime: 077715
Bathymetry, Corrected Depth: 5884.0