Survey Identifier: 89001711
Format Acronym: MGD77
Data Center File Number: 67010187
Parameters Surveyed Code: 00500
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): 19890808
Survey Arrival Date (yyyymmdd): 19890910
Topmost Latitude of Survey: +49
Bottommost Latitude: +32
Leftmost Longitude: -021
Rightmost Longitude: +007
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Magnetic Sensor Tow Distance: 0200
Sensor Depth: 00100
General Digitizing Rate of Gravity: 018
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: 44421
Min/Max Data Record:
Date: 1989 08 08
Latitude: +32.61426
Longitude: -20.02380
Observed Gravity: 9795929
Free-Air Anomaly: -1361
Min/Max Data Record:
Date: 1989 09 10
Latitude: +48.38803
Longitude: +6.06912
Observed Gravity: 9809557
Free-Air Anomaly: +2381