Survey Identifier: 85005111


Format Acronym: MGD77
Data Center File Number: 67010153
Parameters Surveyed Code: 55500
File Creation Date (yyyymmdd): 19880114
Source Institution: IFREMER
Country: FRANCE
Platform Name: JEAN CHARCOT
Platform Type Code: 1
Platform Type: SHIP
Project: SEAPSO L2
Funding: IFREMER
Survey Departure Date (yyyymmdd): 19851109
Survey Arrival Date (yyyymmdd): 19851129
Navigation Instrumentation: MX1107R,GPS TI4100
Geodetic Datum/Position: SATELITE ESTIME
Bathymetry Instrumentation: VERTICAL SEABEAM
Magnetics Instrumentation: GEOMETRICS G801
Gravity Instrumentation: BODENSEEWERK KSS30
Topmost Latitude of Survey: -12
Bottommost Latitude: -21
Leftmost Longitude: +167
Rightmost Longitude: +171
General Digitizing Rate of Bathymetry: 013
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
General Digitizing Rate of Magnetics: 013
Sensor Depth: 00100
Method of Applying Residual Field: INTERPOLATION BETWEEN NAVIGATION DATA
General Digitizing Rate of Gravity: 010
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNATIONAL 30
Additional Documentation: BATHYMETRY DATA ALSO PROCESSED BY ORSTOM NEW CALEDONIA (EDO 12KHZ, RAYTHEON3.5, K) AVAILABLE THROUGH NGDC.
Number of Data Records: 28739

Min/Max Data Record:
Date: 1985 11 09
Latitude: -20.08210
Longitude: +167.06793
Bathymetry, Corrected Depth: 92.0
Magnetics Total Field, 1st Sensor: 410710
Magnetics Residual Field: -20505
Observed Gravity: 9782250
Free-Air Anomaly: -1815

Min/Max Data Record:
Date: 1985 11 29
Latitude: -12.12439
Longitude: +170.47674
Bathymetry, Corrected Depth: 6053.0
Magnetics Total Field, 1st Sensor: 466000
Magnetics Residual Field: +23465
Observed Gravity: 9787989
Free-Air Anomaly: +2457