Survey Identifier: S677BS
Format Acronym: MGD77
Data Center File Number: 06110004
Parameters Surveyed Code: 55500
File Creation Date (yyyymmdd): 19870521
Source Institution: USGS Branch of Pacific Marine Geology
Country: United States
Platform Name: Sea Sounder
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): Tracy Vallier
Project: Jim Gardner
Survey Departure Date (yyyymmdd): 19770806
Port of Departure: LV DUTCH HARBOR, AK
Survey Arrival Date (yyyymmdd): 19770910
Port of Arrival: AR KODIAK, AK
Navigation Instrumentation: SHIPBOARD INTEGRATED NAV LORAN C MARCONI
Geodetic Datum/Position: SATTELITE NAVIG. DOPPLER SONAR
Bathymetry Instrumentation: 3.5 KHZ BATHYMETRY 12 KHZ BATHYMETRY
Magnetics Instrumentation: MAGNETOMETER (SHIPBOARD)
Seismic Instrumentation: 160 KJ SPARKER
Topmost Latitude of Survey: +58
Bottommost Latitude: +53
Leftmost Longitude: -173
Rightmost Longitude: -151
General Digitizing Rate of Bathymetry: 23
General Digitizing Rate of Magnetics: 13
General Digitizing Rate of Gravity: 14
Number of Data Records: 43302
Min/Max Data Record:
Date: 1977 08 06
Latitude: +53.53344
Longitude: -172.88033
Bathymetry, 2- Way Traveltime: 000310
Bathymetry, Corrected Depth: 23.0
Magnetics Total Field, 1st Sensor: 493993
Magnetics Residual Field: -08808
Observed Gravity: 9813906
Free-Air Anomaly: -0559
Min/Max Data Record:
Date: 1977 09 10
Latitude: +57.69907
Longitude: -151.25894
Bathymetry, 2- Way Traveltime: 042710
Bathymetry, Corrected Depth: 3172.0
Magnetics Total Field, 1st Sensor: 528465
Magnetics Residual Field: +15444
Observed Gravity: 9817565
Free-Air Anomaly: +1760