Survey Identifier: ANTV4

Format Acronym: MGD77
Data Center File Number: 83070005
Parameters Surveyed Code: 53333
File Creation Date (yyyymmdd): 19920117
Source Institution: Alfred Wegener Inst Polar+MarineRes.AWI
Country: Fed. Rep. Germany
Platform Name: RV Polarstern
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): Miller, H.
Project: Polarstern ANT V/4
Survey Departure Date (yyyymmdd): 19861226
Port of Departure: Capetown, SA
Survey Arrival Date (yyyymmdd): 19870317
Port of Arrival: Puerto Madryn, AR
Navigation Instrumentation: INDAS: Satnav (GPS+NNSS), Log+Gyro
Geodetic Datum/Position: Satfix GPS, dead reckoning, interpol.
Bathymetry Instrumentation: ELAC NBS, roll/pitch compensated
Additional Forms of Bathymetric Data: analogue and digital
Topmost Latitude of Survey: -52
Bottommost Latitude: -77
Leftmost Longitude: -051
Rightmost Longitude: +005
General Digitizing Rate of Bathymetry: 002
General Sampling Rate of Bathymetry: 1/second
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: no interpolation
Additional Documentation: Suspected depth data have been verified by 3.5 kHz sedimentary echo sounder, and analog recordings of HONEYWELL-ELAC Narrow Beam Sounders, Navigation: Linear interpolated between GPS or NNSS fixes, suspected positions, have been deleted, NBS plus SEABEAM fan sonar survey. Geophysical measurements are excluded. See, expedition report for details: Berichte z.Polarforschung,57,AWI,1990.
Number of Data Records: 215284

Min/Max Data Record:
Date: 1987 01 01
Latitude: -76.65141
Longitude: -50.94539
Bathymetry, 2- Way Traveltime: 001213
Bathymetry, Corrected Depth: 91.0

Min/Max Data Record:
Date: 1987 03 10
Latitude: -52.18349
Longitude: +4.67366
Bathymetry, 2- Way Traveltime: 074293
Bathymetry, Corrected Depth: 5550.0