Survey Identifier: TTN025
Format Acronym: MGD77
Data Center File Number: 20010024
Parameters Surveyed Code: 51111
File Creation Date (yyyymmdd): 19931029
Source Institution: University of Washington
Country: USA
Platform Name: R/V T.G. Thompson
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): Dick Von Hertzen
Project: TT025
Funding: NSF
Survey Departure Date (yyyymmdd): 19930907
Port of Departure: Suva, Fiji
Survey Arrival Date (yyyymmdd): 19931002
Port of Arrival: Suva, Fiji
Navigation Instrumentation: mx1107 gps, trimble gps
Geodetic Datum/Position: WGS84
Bathymetry Instrumentation: 3.5 kHz, 90deg beam, 8 sec sweep
Additional Forms of Bathymetric Data: analog recorder
Topmost Latitude of Survey: -18
Bottommost Latitude: -31
Leftmost Longitude: +178
Rightmost Longitude: -174
General Digitizing Rate of Bathymetry: 010
General Sampling Rate of Bathymetry: 1/second
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: cubic spline interpolation
Number of Data Records: 20669
Min/Max Data Record:
Date: 1993 09 07
Latitude: -30.54501
Longitude: -179.99963
Bathymetry, 2- Way Traveltime: 000360
Bathymetry, Corrected Depth: 27.0
Min/Max Data Record:
Date: 1993 10 01
Latitude: -18.13256
Longitude: +179.99925
Bathymetry, 2- Way Traveltime: 099456
Bathymetry, Corrected Depth: 7585.0