Survey Identifier: 88000911
Format Acronym: MGD77
Data Center File Number: 67010191
Parameters Surveyed Code: 55500
File Creation Date (yyyymmdd): 19910827
Source Institution: IFREMER
Country: FRANCE
Platform Name: JEAN CHARCOT
Platform Type Code: 1
Platform Type: SHIP
Funding: IFREMER
Survey Departure Date (yyyymmdd): 19880323
Survey Arrival Date (yyyymmdd): 19880404
Topmost Latitude of Survey: +49
Bottommost Latitude: +14
Leftmost Longitude: -024
Rightmost Longitude: -004
General Digitizing Rate of Bathymetry: 011
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
General Digitizing Rate of Magnetics: 010
Magnetic Sensor Tow Distance: 0200
Sensor Depth: 00100
General Digitizing Rate of Gravity: 011
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: 17275
Min/Max Data Record:
Date: 1988 03 23
Latitude: +14.63529
Longitude: -23.89853
Bathymetry, 2- Way Traveltime: 002547
Bathymetry, Corrected Depth: 191.0
Magnetics Total Field, 1st Sensor: 326800
Magnetics Residual Field: -00440
Observed Gravity: 9784019
Free-Air Anomaly: -0922
Min/Max Data Record:
Date: 1988 04 04
Latitude: +48.35537
Longitude: -4.51348
Bathymetry, 2- Way Traveltime: 074504
Bathymetry, Corrected Depth: 5656.0
Magnetics Total Field, 1st Sensor: 362850
Magnetics Residual Field: +01850
Observed Gravity: 9809646
Free-Air Anomaly: +1653