Survey Identifier: V1605
Format Acronym: MGD77
Data Center File Number: 01030385
Parameters Surveyed Code: 53111
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): C. Fray
Project: v1605
Survey Departure Date (yyyymmdd): 19591227
Port of Departure: Cape Town, RSA
Survey Arrival Date (yyyymmdd): 19600122
Port of Arrival: Port Louis, Mauritius
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: -20
Bottommost Latitude: -51
Leftmost Longitude: +018
Rightmost Longitude: +058
General Digitizing Rate of Bathymetry: 037
General Sampling Rate of Bathymetry: continuous
Assumed Sound Velocity: 1463
Bathymetric Datum Code: 0
Interpolation Scheme: 5 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: 7974
Min/Max Data Record:
Date: 1959 12 27
Latitude: -50.06333
Longitude: +18.16666
Bathymetry, 2- Way Traveltime: 000476
Bathymetry, Corrected Depth: 36.0
Min/Max Data Record:
Date: 1960 01 22
Latitude: -20.12833
Longitude: +57.44166
Bathymetry, 2- Way Traveltime: 078726
Bathymetry, Corrected Depth: 5932.0