Survey Identifier: L981AA
Format Acronym: MGD77
Data Center File Number: 06050096
Parameters Surveyed Code: 55500
File Creation Date (yyyymmdd): 19870617
Source Institution: USGS Branch of Pacific Marine Geology
Country: United States
Platform Name: Lee
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): Dave Scholl
Project: Tracy Vallier
Survey Departure Date (yyyymmdd): 19810719
Port of Departure: LV DUTCH HARBOR, AK
Survey Arrival Date (yyyymmdd): 19810813
Port of Arrival: ARRIVE DUTCH HARBOR, AK
Topmost Latitude of Survey: +55
Bottommost Latitude: +50
Leftmost Longitude: +173
Rightmost Longitude: -165
General Digitizing Rate of Bathymetry: 012
General Digitizing Rate of Magnetics: 011
General Digitizing Rate of Gravity: 010
Number of Data Records: 43849
Min/Max Data Record:
Date: 1981 07 19
Latitude: +50.11443
Longitude: -179.99889
Bathymetry, 2- Way Traveltime: 000450
Bathymetry, Corrected Depth: 34.0
Magnetics Total Field, 1st Sensor: 457880
Magnetics Residual Field: -27346
Observed Gravity: 9804721
Free-Air Anomaly: -7445
Seismic Line Number: 4
Seismic Shot-Point Number: 41
Min/Max Data Record:
Date: 1981 08 13
Latitude: +54.08144
Longitude: +179.99854
Bathymetry, 2- Way Traveltime: 096450
Bathymetry, Corrected Depth: 7326.0
Magnetics Total Field, 1st Sensor: 542740
Magnetics Residual Field: +56537
Observed Gravity: 9817864
Free-Air Anomaly: +5678
Seismic Line Number: 39
Seismic Shot-Point Number: 5414