Survey Identifier: 85004911
Format Acronym: MGD77
Data Center File Number: 67010152
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 L1
Funding: IFREMER
Survey Departure Date (yyyymmdd): 19851014
Survey Arrival Date (yyyymmdd): 19851106
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: -14
Bottommost Latitude: -23
Leftmost Longitude: +166
Rightmost Longitude: +170
General Digitizing Rate of Bathymetry: 012
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
General Digitizing Rate of Magnetics: 011
Sensor Depth: 00100
Method of Applying Residual Field: INTERPOLATION BETWEEN NAVIGATION DATA
General Digitizing Rate of Gravity: 011
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: 30945
Min/Max Data Record:
Date: 1985 10 14
Latitude: -22.57882
Longitude: +166.06669
Bathymetry, Corrected Depth: 226.0
Magnetics Total Field, 1st Sensor: 434370
Magnetics Residual Field: -05372
Observed Gravity: 9781201
Free-Air Anomaly: -8902
Min/Max Data Record:
Date: 1985 11 06
Latitude: -14.86098
Longitude: +169.77534
Bathymetry, Corrected Depth: 6061.0
Magnetics Total Field, 1st Sensor: 485020
Magnetics Residual Field: +04694
Observed Gravity: 9789084
Free-Air Anomaly: +6665