Survey Identifier: L780BS
Format Acronym: MGD77
Data Center File Number: 06050037
Parameters Surveyed Code: 50000
File Creation Date (yyyymmdd): 19870612
Source Institution: USGS Branch of Pacific Marine Geology
Country: United States
Platform Name: Lee
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): Hans Nelson
Survey Departure Date (yyyymmdd): 19800801
Port of Departure: LEAVE NOME START L780BS
Survey Arrival Date (yyyymmdd): 19800826
Port of Arrival: AR NOME END L780BS
Navigation Instrumentation: SATNAV,LORAN-C,DOPPLAR SONAR
Geodetic Datum/Position: PRIM-SATNAV SEC-INTEGRATED NAV
Bathymetry Instrumentation: 12KHZ NARROW 1 SEC, 3.5KHZ WIDE 1 SEC
Additional Forms of Bathymetric Data: RECORDER ROLLS
Seismic Instrumentation: UNIBOOM, SINGLE CHANNEL
Topmost Latitude of Survey: +67
Bottommost Latitude: +62
Leftmost Longitude: -173
Rightmost Longitude: -163
General Digitizing Rate of Bathymetry: 017
General Sampling Rate of Bathymetry: 20/SECONDS
Assumed Sound Velocity: 14630
Number of Data Records: 23897
Min/Max Data Record:
Date: 1980 08 01
Latitude: +62.68804
Longitude: -172.71805
Bathymetry, 2- Way Traveltime: 000070
Bathymetry, Corrected Depth: 5.0
Min/Max Data Record:
Date: 1980 08 26
Latitude: +66.03701
Longitude: -163.16592
Bathymetry, 2- Way Traveltime: 000760
Bathymetry, Corrected Depth: 57.0