Survey Identifier: D480BS
Format Acronym: MGD77
Data Center File Number: 06250004
Parameters Surveyed Code: 55000
File Creation Date (yyyymmdd): 19870612
Source Institution: USGS Branch of Pacific Marine Geology
Country: United States
Platform Name: Discoverer
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): Paul Carlson
Project: DC480BS Herman Karl
Survey Departure Date (yyyymmdd): 19800703
Port of Departure: LV KODIAK
Survey Arrival Date (yyyymmdd): 19800724
Port of Arrival: AR KODIAK END CRUISE
Navigation Instrumentation: SATNAV, LORAN-C
Geodetic Datum/Position: PRIM-SATNAV SEC-LORAN-C
Bathymetry Instrumentation: 12KHZ WIDE 1 SEC, 3.5KHZ WIDE 1 SEC
Additional Forms of Bathymetric Data: RECORDER ROLLS
Seismic Instrumentation: MINISPARKER, SINGLE CHANNEL
Topmost Latitude of Survey: +62
Bottommost Latitude: +51
Leftmost Longitude: +178
Rightmost Longitude: -152
General Digitizing Rate of Bathymetry: 127
General Sampling Rate of Bathymetry: 20/SECONDS
Assumed Sound Velocity: 14630
General Digitizing Rate of Magnetics: 66
Number of Data Records: 3999
Min/Max Data Record:
Date: 1980 07 03
Latitude: +51.87167
Longitude: -179.99603
Bathymetry, 2- Way Traveltime: 000420
Bathymetry, Corrected Depth: 31.0
Magnetics Total Field, 1st Sensor: 482800
Magnetics Residual Field: -03613
Min/Max Data Record:
Date: 1980 07 24
Latitude: +61.94057
Longitude: +179.98833
Bathymetry, 2- Way Traveltime: 048370
Bathymetry, Corrected Depth: 3600.0
Magnetics Total Field, 1st Sensor: 545200
Magnetics Residual Field: +11368