Survey Identifier: 90000111
Format Acronym: MGD77
Data Center File Number: 67010207
Parameters Surveyed Code: 55000
File Creation Date (yyyymmdd): 19930826
Source Institution: IFREMER
Country: FRANCE
Platform Name: JEAN CHARCOT
Platform Type Code: 1
Platform Type: SHIP
Funding: IFREMER
Survey Departure Date (yyyymmdd): 19900119
Survey Arrival Date (yyyymmdd): 19900221
Bathymetry Instrumentation: VERTICAL BEAM FROM GIC SEABEAM
Topmost Latitude of Survey: +44
Bottommost Latitude: +41
Leftmost Longitude: +004
Rightmost Longitude: +009
General Digitizing Rate of Bathymetry: 010
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
General Digitizing Rate of Magnetics: 010
Magnetic Sensor Tow Distance: 0200
Sensor Depth: 00100
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: 44796
Min/Max Data Record:
Date: 1990 01 19
Latitude: +41.10493
Longitude: +4.07442
Bathymetry, 2- Way Traveltime: 000936
Bathymetry, Corrected Depth: 70.0
Magnetics Total Field, 1st Sensor: 449660
Magnetics Residual Field: -02190
Min/Max Data Record:
Date: 1990 02 21
Latitude: +43.74398
Longitude: +8.22077
Bathymetry, 2- Way Traveltime: 036335
Bathymetry, Corrected Depth: 2777.0
Magnetics Total Field, 1st Sensor: 461730
Magnetics Residual Field: +06100