Survey Identifier: 88003111
Format Acronym: MGD77
Data Center File Number: 67010198
Parameters Surveyed Code: 55500
File Creation Date (yyyymmdd): 19910826
Source Institution: IFREMER
Country: FRANCE
Platform Name: JEAN CHARCOT
Platform Type Code: 1
Platform Type: SHIP
Project: BREBA
Funding: IFREMER
Survey Departure Date (yyyymmdd): 19881026
Survey Arrival Date (yyyymmdd): 19881031
Navigation Instrumentation: GPS + TRANSIT
Bathymetry Instrumentation: SEA BEAM VERTICAL BEAM
Topmost Latitude of Survey: +45
Bottommost Latitude: +35
Leftmost Longitude: -010
Rightmost Longitude: +003
General Digitizing Rate of Bathymetry: 010
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: 011
Theoretical Gravity Formula Code: 8
Theoretical Gravity Formula: IAG SYS 80
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: 6988
Min/Max Data Record:
Date: 1988 10 26
Latitude: +35.89246
Longitude: -9.90410
Bathymetry, 2- Way Traveltime: 001693
Bathymetry, Corrected Depth: 127.0
Magnetics Total Field, 1st Sensor: 424320
Magnetics Residual Field: -01640
Observed Gravity: 9796611
Free-Air Anomaly: -1541
Min/Max Data Record:
Date: 1988 10 31
Latitude: +44.49946
Longitude: +2.17455
Bathymetry, 2- Way Traveltime: 033943
Bathymetry, Corrected Depth: 2592.0
Magnetics Total Field, 1st Sensor: 447390
Magnetics Residual Field: +04080
Observed Gravity: 9806606
Free-Air Anomaly: +1355