Survey Identifier: CD2787
Format Acronym: MGD77
Data Center File Number: 19180004
Parameters Surveyed Code: 55500
File Creation Date (yyyymmdd): 19930701
Source Institution: INSTITUTE OF OCEANOGRAPHIC SCIENCES, UK
Country: UNITED KINGDOM
Platform Name: CHARLES DARWIN
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): A. CRAMP
Project: CHARLES DARWIN CRUISE 27 1987
Funding: N.E.R.C.
Survey Departure Date (yyyymmdd): 19870831
Port of Departure: MUSCAT, OMAN
Survey Arrival Date (yyyymmdd): 19870923
Port of Arrival: MUSCAT, OMAN
Navigation Instrumentation: GPS & MAGNAVOX SATELLITE NAVIGATOR
Geodetic Datum/Position: PRIM-SAT PLUS DEAD RECKONING
Bathymetry Instrumentation: PRECISION ECHO SOUNDER - IOS MK 3
Additional Forms of Bathymetric Data: ANALOGUE
Magnetics Instrumentation: VARIAN V75 PROTON PRECESSION
Additional Forms of Magnetics Data: ANALOGUE
Topmost Latitude of Survey: +24
Bottommost Latitude: +15
Leftmost Longitude: +059
Rightmost Longitude: +067
General Digitizing Rate of Bathymetry: 060
General Sampling Rate of Bathymetry: 2/SEC
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: NONE
General Digitizing Rate of Magnetics: 020
General Sampling Rate of Magnetics: 02
Magnetic Sensor Tow Distance: 250
Reference Field Code: 04
Reference Field: IGRF-85
Method of Applying Residual Field: LINEAR INTERPOLATION PER DEGREE SQUARE
General Digitizing Rate of Gravity: 060
General Sampling Rate of Gravity: 00
Theoretical Gravity Formula Code: 3
Theoretical Gravity Formula: IAG SYSTEM 1967
Reference System Code: 3
Reference System: IGSN-71
Corrections Applied: CROSS COUPLING PLUS EOTVOS
Number of Data Records: 16156
Min/Max Data Record:
Date: 1987 08 31
Latitude: +15.43130
Longitude: +59.00900
Bathymetry, 2- Way Traveltime: 005133
Bathymetry, Corrected Depth: 391.0
Magnetics Total Field, 1st Sensor: 300710
Magnetics Residual Field: -11380
Free-Air Anomaly: -0790
Min/Max Data Record:
Date: 1987 09 23
Latitude: +23.57290
Longitude: +66.63499
Bathymetry, 2- Way Traveltime: 051799
Bathymetry, Corrected Depth: 3899.0
Magnetics Total Field, 1st Sensor: 426330
Magnetics Residual Field: +03340
Free-Air Anomaly: +2180