Survey Identifier: 89001011
Format Acronym: MGD77
Data Center File Number: 67010184
Parameters Surveyed Code: 50500
File Creation Date (yyyymmdd): 19911018
Source Institution: IFREMER
Country: FRANCE
Platform Name: JEAN CHARCOT
Platform Type Code: 1
Platform Type: SHIP
Funding: IFREMER
Survey Departure Date (yyyymmdd): 19890627
Survey Arrival Date (yyyymmdd): 19890701
Topmost Latitude of Survey: +43
Bottommost Latitude: +28
Leftmost Longitude: -016
Rightmost Longitude: -008
General Digitizing Rate of Bathymetry: 005
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Magnetic Sensor Tow Distance: 0200
Sensor Depth: 00100
General Digitizing Rate of Gravity: 012
Theoretical Gravity Formula Code: 8
Theoretical Gravity Formula: IAG SYS
Corrections Applied: DRIFT CORRECTION DONE
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: 4940
Min/Max Data Record:
Date: 1989 06 27
Latitude: +28.12049
Longitude: -15.41750
Bathymetry, 2- Way Traveltime: 064228
Bathymetry, Corrected Depth: 4862.0
Observed Gravity: 9791298
Free-Air Anomaly: -1139
Min/Max Data Record:
Date: 1989 07 01
Latitude: +42.24749
Longitude: -8.70982
Bathymetry, 2- Way Traveltime: 064603
Bathymetry, Corrected Depth: 4891.0
Observed Gravity: 9804121
Free-Air Anomaly: +2026