Survey Identifier: 89000911
Format Acronym: MGD77
Data Center File Number: 67010183
Parameters Surveyed Code: 55500
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): 19890615
Survey Arrival Date (yyyymmdd): 19890624
Topmost Latitude of Survey: +44
Bottommost Latitude: +31
Leftmost Longitude: -025
Rightmost Longitude: -007
General Digitizing Rate of Bathymetry: 008
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: 12566
Min/Max Data Record:
Date: 1989 06 15
Latitude: +31.23301
Longitude: -25.00323
Bathymetry, 2- Way Traveltime: 035272
Bathymetry, Corrected Depth: 2655.0
Magnetics Total Field, 1st Sensor: 404000
Magnetics Residual Field: -03560
Observed Gravity: 9793423
Free-Air Anomaly: -1263
Min/Max Data Record:
Date: 1989 06 24
Latitude: +43.92181
Longitude: -7.43677
Bathymetry, 2- Way Traveltime: 071835
Bathymetry, Corrected Depth: 5452.0
Magnetics Total Field, 1st Sensor: 448170
Magnetics Residual Field: +06920
Observed Gravity: 9806056
Free-Air Anomaly: +3027