Survey Identifier: 88000711


Format Acronym: MGD77
Data Center File Number: 67010189
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): 19880205
Survey Arrival Date (yyyymmdd): 19880227
Topmost Latitude of Survey: +15
Bottommost Latitude: -01
Leftmost Longitude: -018
Rightmost Longitude: -003
General Digitizing Rate of Bathymetry: 011
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
General Digitizing Rate of Magnetics: 012
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: 32261

Min/Max Data Record:
Date: 1988 02 05
Latitude: -0.34039
Longitude: -17.97377
Bathymetry, 2- Way Traveltime: 001907
Bathymetry, Corrected Depth: 143.0
Magnetics Total Field, 1st Sensor: 287620
Magnetics Residual Field: -03990
Observed Gravity: 9778695
Free-Air Anomaly: -1633

Min/Max Data Record:
Date: 1988 02 27
Latitude: +14.68372
Longitude: -3.96408
Bathymetry, 2- Way Traveltime: 085640
Bathymetry, Corrected Depth: 6506.0
Magnetics Total Field, 1st Sensor: 323620
Magnetics Residual Field: +02760
Observed Gravity: 9784944
Free-Air Anomaly: +2225