Survey Identifier: D172_878
Format Acronym: MGD77
Data Center File Number: 19100060
Parameters Surveyed Code: 50033
File Creation Date (yyyymmdd): 19220796
Source Institution: BRITISH ANTARCTIC SURVEY
Country: UNITED KINGDOM
Platform Name: RRS DISCOVERY
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): P.BARKER
Project: SCOTIA SEA, WEDDEL SEA, SOUTHEAST PACIFIC
Funding: NERC
Survey Departure Date (yyyymmdd): 19871217
Port of Departure: RIO DE JANEIRO
Survey Arrival Date (yyyymmdd): 19880330
Port of Arrival: PORT STANLEY
Navigation Instrumentation: GPS(TRIMBLE 4000),SATNAV(MAGNAVOX1107)
Geodetic Datum/Position: GPS WHEN POSSIBLE OTHERWISE SATNAV/DR
Bathymetry Instrumentation: IOS PES(MK3) 12HZ,18DEG SQ.BEAM,2SEC
Additional Forms of Bathymetric Data: ANALOGUE RECORDS
Magnetics Instrumentation: L&R SEA GRAVITY METER S84
Additional Forms of Magnetics Data: ANALOGUE RECORDS
Gravity Instrumentation: PROTON PRECESSION MAG (VARIAN V75)
Additional Forms of Gravity Data: ANALOGUE RECORDS
Seismic Instrumentation: SERCEL SN358, 48 CHANNEL, AIRGUNS
Formats of Seismic Data: DIGITAL
Topmost Latitude of Survey: -22
Bottommost Latitude: -68
Leftmost Longitude: -074
Rightmost Longitude: -034
General Digitizing Rate of Bathymetry: 040
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
General Digitizing Rate of Magnetics: 010
Reference Field Code: 88
Reference Field: DGRF
General Digitizing Rate of Gravity: 010
General Sampling Rate of Gravity: 00
Theoretical Gravity Formula Code: 3
Theoretical Gravity Formula: IAG 1967
Reference System Code: 3
Reference System: IGSN 71
Number of Data Records: 99141
Min/Max Data Record:
Date: 1987 12 17
Latitude: -67.81946
Longitude: -73.82473
Bathymetry, Corrected Depth: 94.0
Min/Max Data Record:
Date: 1988 03 29
Latitude: -22.89020
Longitude: -34.50190
Bathymetry, Corrected Depth: 6250.1