Survey Identifier: DI68L2
Format Acronym: MGD77
Data Center File Number: 19100004
Parameters Surveyed Code: 55100
File Creation Date (yyyymmdd): 19830406
Source Institution: INSTITUTE OF OCEANOGRAPHIC SCIENCES, UK
Country: UNITED KINGDOM
Platform Name: DISCOVERY
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): A. S. LAUGHTON
Project: DISCOVERY CRUISE 68
Funding: LEG 2
Survey Departure Date (yyyymmdd): 19741112
Port of Departure: PONTA DELGADA, AZRES
Survey Arrival Date (yyyymmdd): 19741126
Port of Arrival: PANTA DELGADA, AZORES
Navigation Instrumentation: MAGNAVOX SATELLITE RECEIVER
Geodetic Datum/Position: SAT PLUS DR
Bathymetry Instrumentation: IOS PES MARK 3 10KHZ 20DEG 2DEG SWEEP
Additional Forms of Bathymetric Data: ANALOGUE
Magnetics Instrumentation: PROTON PRECESSION VARIAN V75
Additional Forms of Magnetics Data: ANALOGUE
Topmost Latitude of Survey: +41
Bottommost Latitude: +37
Leftmost Longitude: -026
Rightmost Longitude: -021
General Digitizing Rate of Bathymetry: 060
General Sampling Rate of Bathymetry: 2 SEC
Assumed Sound Velocity: 08000
Bathymetric Datum Code: 00
Interpolation Scheme: NONE
General Digitizing Rate of Magnetics: 020
General Sampling Rate of Magnetics: 02
Magnetic Sensor Tow Distance: 0250
Reference Field Code: 03
Reference Field: IGRF65
Method of Applying Residual Field: LIN INTERP 1*1 DEG SQUARE
Number of Data Records: 9911
Min/Max Data Record:
Date: 1974 11 12
Latitude: +37.66000
Longitude: -25.58470
Bathymetry, Corrected Depth: 477.0
Magnetics Total Field, 1st Sensor: 397440
Magnetics Residual Field: -48580
Min/Max Data Record:
Date: 1974 11 26
Latitude: +40.29080
Longitude: -21.18000
Bathymetry, Corrected Depth: 5031.0
Magnetics Total Field, 1st Sensor: 467480
Magnetics Residual Field: +27680