Survey Identifier: 86005311
Format Acronym: MGD77
Data Center File Number: 67010168
Parameters Surveyed Code: 50500
File Creation Date (yyyymmdd): 19930406
Source Institution: IFREMER
Country: FRANCE
Platform Name: JEAN CHARCOT
Platform Type Code: 1
Platform Type: SHIP
Funding: IFREMER
Survey Departure Date (yyyymmdd): 19861119
Survey Arrival Date (yyyymmdd): 19861128
Bathymetry Instrumentation: VERTICAL BEAM FROM GIC SEABEAM
Topmost Latitude of Survey: +17
Bottommost Latitude: +09
Leftmost Longitude: -081
Rightmost Longitude: -061
General Digitizing Rate of Bathymetry: 012
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Magnetic Sensor Tow Distance: 0200
Sensor Depth: 00100
General Digitizing Rate of Gravity: 010
Theoretical Gravity Formula Code: 4
Theoretical Gravity Formula: IAG SYSTEM 1980
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: 12575
Min/Max Data Record:
Date: 1986 11 19
Latitude: +9.34497
Longitude: -80.37754
Bathymetry, 2- Way Traveltime: 001171
Bathymetry, Corrected Depth: 88.0
Observed Gravity: 9781166
Free-Air Anomaly: -1409
Min/Max Data Record:
Date: 1986 11 28
Latitude: +16.23549
Longitude: -61.51616
Bathymetry, 2- Way Traveltime: 067067
Bathymetry, Corrected Depth: 5079.0
Observed Gravity: 9785590
Free-Air Anomaly: +1234