Survey Identifier: L483BS
Format Acronym: MGD77
Data Center File Number: 06050064
Parameters Surveyed Code: 55500
File Creation Date (yyyymmdd): 19870707
Source Institution: USGS Branch of Pacific Marine Geology
Country: United States
Platform Name: Lee
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): Mike Fisher
Project: BERING SEA / NORTON SOUND
Survey Departure Date (yyyymmdd): 19830916
Port of Departure: LV NOME,ALASKA
Survey Arrival Date (yyyymmdd): 19831002
Port of Arrival: LV NOME,ALASKA
Navigation Instrumentation: INTEGRATED NAV/LORAN-C RHO RHO,ADD.DOC.
Bathymetry Instrumentation: 12KHZ
Magnetics Instrumentation: PROTON PRECESSION MAG
Additional Forms of Magnetics Data: ANALOG RECORDS
Gravity Instrumentation: SHIPBOARD GRAVITY METER
Additional Forms of Gravity Data: ANALOG RECORDS
Seismic Instrumentation: 3.5 KHZ, UNIBOOM, ADD.DOC.
Formats of Seismic Data: 18
Topmost Latitude of Survey: +65
Bottommost Latitude: +53
Leftmost Longitude: -178
Rightmost Longitude: -160
General Digitizing Rate of Bathymetry: 010
General Digitizing Rate of Magnetics: 009
General Digitizing Rate of Gravity: 010
Additional Documentation: SINGLE CHANNEL AIRGUN / 24 CHANNEL SEISMICS
Number of Data Records: 23865
Min/Max Data Record:
Date: 1983 09 16
Latitude: +53.89226
Longitude: -177.03690
Bathymetry, 2- Way Traveltime: 000070
Bathymetry, Corrected Depth: 5.0
Magnetics Total Field, 1st Sensor: 503690
Magnetics Residual Field: -13170
Free-Air Anomaly: -0972
Seismic Line Number: 301
Seismic Shot-Point Number: 50
Min/Max Data Record:
Date: 1983 10 02
Latitude: +64.56765
Longitude: -160.91104
Bathymetry, 2- Way Traveltime: 064190
Bathymetry, Corrected Depth: 4807.0
Magnetics Total Field, 1st Sensor: 578663
Magnetics Residual Field: +25219
Free-Air Anomaly: +1988
Seismic Line Number: 305
Seismic Shot-Point Number: 5020