Survey Identifier: TTN023


Format Acronym: MGD77
Data Center File Number: 20010022
Parameters Surveyed Code: 51111
File Creation Date (yyyymmdd): 19931025
Source Institution: University of Washington
Country: USA
Platform Name: R/V T.G. Thompson
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): Gunnar Roden
Project: WOCE EXPOCODE 325023_1, P14N
Funding: NSF
Survey Departure Date (yyyymmdd): 19930705
Port of Departure: Dutch Harbor, Ak.
Survey Arrival Date (yyyymmdd): 19930813
Port of Arrival: Tarawa, Kiribati
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: 59
Bottommost Latitude: 01
Leftmost Longitude: 172
Rightmost Longitude: -167
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: 22860

Min/Max Data Record:
Date: 1993 07 06
Latitude: +0.63433
Longitude: -179.99931
Bathymetry, 2- Way Traveltime: 000311
Bathymetry, Corrected Depth: 23.0

Min/Max Data Record:
Date: 1993 08 10
Latitude: +58.99550
Longitude: +179.99978
Bathymetry, 2- Way Traveltime: 098851
Bathymetry, Corrected Depth: 7526.0