Survey Identifier: L880AR
Format Acronym: MGD77
Data Center File Number: 06050038
Parameters Surveyed Code: 51505
File Creation Date (yyyymmdd): 19870602
Source Institution: USGS Branch of Pacific Marine Geology
Country: United States
Platform Name: Lee
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): Art Grantz
Survey Departure Date (yyyymmdd): 19800901
Port of Departure: LV NOME DELAYED START
Survey Arrival Date (yyyymmdd): 19800922
Port of Arrival: ARRIVE NOME (END OF TRIP
Navigation Instrumentation: SATNAV,LORAN-C,DOPPLAR SONAR
Geodetic Datum/Position: PRIM-SATNAV SEC-INTEGRATED NAV
Gravity Instrumentation: L&R S-53
Additional Forms of Gravity Data: ANALOG RECORDS
Seismic Instrumentation: 3.5KHZ,UNIBOOM,BURG AIRGUN,24 CHANNEL
Formats of Seismic Data: RECORDER ROLLS (3.5)
Topmost Latitude of Survey: +72
Bottommost Latitude: +64
Leftmost Longitude: -172
Rightmost Longitude: -163
General Digitizing Rate of Bathymetry: 238
General Sampling Rate of Bathymetry: 20/SECONDS
Assumed Sound Velocity: 14630
General Digitizing Rate of Gravity: 010
General Sampling Rate of Gravity: 15
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNAT,IAG1967
Reference System Code: 3
Reference System: SYSTEM IGSN-71
Corrections Applied: DRIFT CORRECTIONS
Arrival Base Station Gravity: 968979
Arrival Base Station Description: NOME, ALASKA
Number of Data Records: 19314
Min/Max Data Record:
Date: 1980 09 04
Latitude: +64.46445
Longitude: -171.99015
Bathymetry, 2- Way Traveltime: 000070
Bathymetry, Corrected Depth: 5.0
Observed Gravity: 9770000
Free-Air Anomaly: -8134
Seismic Line Number: 007
Seismic Shot-Point Number: 50
Min/Max Data Record:
Date: 1980 09 20
Latitude: +71.48888
Longitude: -163.10326
Bathymetry, 2- Way Traveltime: 000830
Bathymetry, Corrected Depth: 62.0
Observed Gravity: 9825167
Free-Air Anomaly: +0451
Seismic Line Number: 024
Seismic Shot-Point Number: 7690