Survey Identifier: EVA700
Format Acronym: MGD77
Data Center File Number: 84010013
Parameters Surveyed Code: 50500
File Creation Date (yyyymmdd): 1988 3 7
Source Institution: GEOMER DATA BANK ORSTOM NOUMEA
Country: NOUVELLE CALEDONIE
Platform Name: CORIOLIS
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): DANIEL PONTOISE
Project: ORSTOM EVA700
Survey Departure Date (yyyymmdd): 19780914
Port of Departure: NOUMEA
Survey Arrival Date (yyyymmdd): 19781207
Port of Arrival: NOUMEA
Navigation Instrumentation: TRANSIT PDP8
Geodetic Datum/Position: SATELLITES TRANSIT
Bathymetry Instrumentation: EDO 12KHZ
Additional Forms of Bathymetric Data: ANALOG RECORDS
Magnetics Instrumentation: VARIAN #173 PROTON PRECESSION
Additional Forms of Magnetics Data: ANALOG RECORDS
Gravity Instrumentation: L&R S51
Additional Forms of Gravity Data: ANALOG RECORDS
Formats of Seismic Data: NEANT
Topmost Latitude of Survey: -17
Bottommost Latitude: -26
Leftmost Longitude: +162
Rightmost Longitude: -169
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: ONE SECOND
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 07
Interpolation Scheme: NEANT
General Digitizing Rate of Magnetics: 050
General Sampling Rate of Magnetics: 03
Magnetic Sensor Tow Distance: 100
Reference Field Code: 04
Reference Field: IGRF75
Method of Applying Residual Field: FOR EACH DATA VALUE
General Digitizing Rate of Gravity: 050
General Sampling Rate of Gravity: 00
Theoretical Gravity Formula Code: 0
Theoretical Gravity Formula: IAG SYTSTEM 1967
Reference System Code: 3
Reference System: IGSN71
Corrections Applied: -.00004 MGAL PER DAY
Departure Base Station Gravity: 9726909
Departure Base Station Description: PORT DE NOUMEA
Arrival Base Station Gravity: 9726923
Arrival Base Station Description: PORT DE SUVA
Number of Data Records: 10404
Min/Max Data Record:
Date: 1978 09 27
Latitude: -25.13334
Longitude: -179.99948
Bathymetry, Corrected Depth: 11.0
Observed Gravity: 9782920
Free-Air Anomaly: -2400
Min/Max Data Record:
Date: 1978 12 06
Latitude: -17.77167
Longitude: +179.99036
Bathymetry, Corrected Depth: 9282.0
Observed Gravity: 9790300
Free-Air Anomaly: +8630