Survey Identifier: V1408
Format Acronym: MGD77
Data Center File Number: 01030347
Parameters Surveyed Code: 51111
File Creation Date (yyyymmdd): 19921214
Source Institution: Lamont-Doherty Geological Observatory
Country: United States
Platform Name: R/V Vema
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): Dr. Maurice Ewing
Project: v1408
Survey Departure Date (yyyymmdd): 19580217
Port of Departure: Ushuaia, Argentina
Survey Arrival Date (yyyymmdd): 19580313
Port of Arrival: Saunders Is., So. Sandwich Is.
Navigation Instrumentation: stars
Geodetic Datum/Position: dr and mileage log
Bathymetry Instrumentation: 12 khz PDR
Additional Forms of Bathymetric Data: paper records
Topmost Latitude of Survey: -48
Bottommost Latitude: -58
Leftmost Longitude: -069
Rightmost Longitude: -024
General Digitizing Rate of Bathymetry: 50
General Sampling Rate of Bathymetry: continuous
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 0
Interpolation Scheme: 05 min intervals when data spacing less than 30 min
Additional Documentation: Bathymetry points were interpolated at 5 minute intervals when data spacing, was less than 30 minutes. When data spacing was 30 minutes or more, no, interpolation was done. Actual and interpolated values are included.
Number of Data Records: 4887
Min/Max Data Record:
Date: 1958 02 17
Latitude: -57.83166
Longitude: -68.41333
Bathymetry, 2- Way Traveltime: 000076
Bathymetry, Corrected Depth: 6.0
Min/Max Data Record:
Date: 1958 03 12
Latitude: -48.74166
Longitude: -24.13333
Bathymetry, 2- Way Traveltime: 103651
Bathymetry, Corrected Depth: 7854.0