Survey Identifier: KK830802
Format Acronym: MGD77
Data Center File Number: 08010099
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19901115
Source Institution: HAWAII INSTITUTE OF GEOPHYSICS
Country: U.S.A.
Platform Name: R/V KANA KEOKI
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): MARK HOLMES AND JIM GARDNER
Project: KK830812-02. GORDA RISE / SEAMARC II.
Funding: NSF/USGS
Survey Departure Date (yyyymmdd): 19830916
Port of Departure: SEATTLE, WASHINGTON USA
Survey Arrival Date (yyyymmdd): 19831007
Port of Arrival: EUREKA, CALIFORNIA USA
Navigation Instrumentation: SATELLITE,LORAN C,SAT OMEGA
Geodetic Datum/Position: PRIM=LORAN C, SEC=SATELLITE
Bathymetry Instrumentation: 3.5 KHZ 30 DEGREE BEAM, 1 SEC SWEEP
Additional Forms of Bathymetric Data: ANALOG, DIGITAL, MICROFILM
Magnetics Instrumentation: GEOMETRICS G 801-3
Additional Forms of Magnetics Data: ANALOG, DIGITAL
Gravity Instrumentation: LACOSTE ROMBERG S-33
Additional Forms of Gravity Data: ANALOG, DIGITAL
Seismic Instrumentation: 40,120 CU IN AIRGUN,120 CU IN H2OGUN
Formats of Seismic Data: ANALOG, MICROFILM, DIGITAL
Topmost Latitude of Survey: +49
Bottommost Latitude: +40
Leftmost Longitude: -131
Rightmost Longitude: -122
General Digitizing Rate of Bathymetry: 022
General Sampling Rate of Bathymetry: 1/SECOND
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: NONE(PICKED PEAKS/TROUGHS OR 15 MIN INTERVALS IF SMOOTH)
General Digitizing Rate of Magnetics: 010
General Sampling Rate of Magnetics: 10
Magnetic Sensor Tow Distance: 0000
Sensor Depth: 00000
Horizontal Sensor Separation: 000
Reference Field Code: 04
Reference Field: IGRF-1975
Method of Applying Residual Field: FOR EACH DATA VALUE
General Digitizing Rate of Gravity: 010
General Sampling Rate of Gravity: 60
Theoretical Gravity Formula Code: 3
Theoretical Gravity Formula: IAG SYSTEM 1967
Reference System Code: 3
Reference System: IGSN 71
Corrections Applied: NONE APPLIED
Departure Base Station Gravity: 9789243
Departure Base Station Description: HONOLULU PIER 45
Arrival Base Station Gravity: 9789243
Arrival Base Station Description: HONOLULU PIER 45
Additional Documentation: DATA TAKEN ON BOARD: B,M,G. SEAMARC II PROCESSED SIDE SCAN, PROCESSED SS + 3.5 KHZ, RAW SIDE SCAN (ANALOG AND DIGITAL). REFLX. -130.6,-122.37,40.86,48.52.
Number of Data Records: 89514
Min/Max Data Record:
Date: 1983 09 16
Latitude: +40.86298
Longitude: -130.59983
Bathymetry, 2- Way Traveltime: 000450
Bathymetry, Corrected Depth: 34.0
Magnetics Total Field, 1st Sensor: 514160
Magnetics Residual Field: -07900
Observed Gravity: 9801408
Free-Air Anomaly: -1335
Min/Max Data Record:
Date: 1983 10 07
Latitude: +48.51571
Longitude: -122.37392
Bathymetry, 2- Way Traveltime: 064120
Bathymetry, Corrected Depth: 4812.0
Magnetics Total Field, 1st Sensor: 558600
Magnetics Residual Field: +14960
Observed Gravity: 9810011
Free-Air Anomaly: +0516