Survey Identifier: 88000811


Format Acronym: MGD77
Data Center File Number: 67010190
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): 19880301
Survey Arrival Date (yyyymmdd): 19880320
Topmost Latitude of Survey: +15
Bottommost Latitude: +01
Leftmost Longitude: -019
Rightmost Longitude: -001
General Digitizing Rate of Bathymetry: 011
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
General Digitizing Rate of Magnetics: 011
Magnetic Sensor Tow Distance: 0200
Sensor Depth: 00100
General Digitizing Rate of Gravity: 010
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: 27621

Min/Max Data Record:
Date: 1988 03 01
Latitude: +1.33032
Longitude: -18.31165
Bathymetry, 2- Way Traveltime: 001256
Bathymetry, Corrected Depth: 94.0
Magnetics Total Field, 1st Sensor: 299290
Magnetics Residual Field: -03170
Observed Gravity: 9779231
Free-Air Anomaly: -1324

Min/Max Data Record:
Date: 1988 03 20
Latitude: +14.67346
Longitude: -1.62767
Bathymetry, 2- Way Traveltime: 069592
Bathymetry, Corrected Depth: 5253.0
Magnetics Total Field, 1st Sensor: 324830
Magnetics Residual Field: +01790
Observed Gravity: 9784921
Free-Air Anomaly: +1280