Survey Identifier: ANTIV3

Format Acronym: MGD77
Data Center File Number: 83070002
Parameters Surveyed Code: 53333
File Creation Date (yyyymmdd): 19920317
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): Fuetterer, D.K.
Project: Polarstern ANT IV/3
Survey Departure Date (yyyymmdd): 19851206
Port of Departure: Punta Arenas, CH
Survey Arrival Date (yyyymmdd): 19860313
Port of Arrival: Capetown, RSA
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: -34
Bottommost Latitude: -78
Leftmost Longitude: -071
Rightmost Longitude: +019
General Digitizing Rate of Bathymetry: 003
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 sediment 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. For, details see expedition report Ber.z.Polarforschung, Vol.33, AWI, 1987.
Number of Data Records: 361164

Min/Max Data Record:
Date: 1985 12 06
Latitude: -77.72585
Longitude: -70.81259
Bathymetry, 2- Way Traveltime: 000160
Bathymetry, Corrected Depth: 12.0

Min/Max Data Record:
Date: 1986 03 13
Latitude: -34.12080
Longitude: +18.13157
Bathymetry, 2- Way Traveltime: 080080
Bathymetry, Corrected Depth: 5998.0