Survey Identifier: 78123001
Format Acronym: MGD77
Data Center File Number: 08010045
Parameters Surveyed Code: 55531
File Creation Date (yyyymmdd): 19801229
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): DAVID T. CUDDY
Project: TRANSIT TO RIVERA OCEAN SEISMIC EXPERIMENT KK781230 LEG 01
Funding: O.N.R./UNIV OF WASH
Survey Departure Date (yyyymmdd): 19781230
Port of Departure: HONOLULU, HAWAII, U.S.A.
Survey Arrival Date (yyyymmdd): 19790109
Port of Arrival: SAN DIEGO, CALIFORNIA, U.S.A.
Navigation Instrumentation: SATELLITE, OMEGA, SEXTANT
Geodetic Datum/Position: SATELLITE
Bathymetry Instrumentation: 3.5KHZ, 30DEG BEAM, 1SEC REP RATE
Additional Forms of Bathymetric Data: ANALOG RECORDS, MICROFILM
Magnetics Instrumentation: GEOMETRICS G-801 PROTON PRECESSION MAG
Additional Forms of Magnetics Data: ANALOG RECORDS, MICROFILM, DATA LOGGER
Gravity Instrumentation: LACOSTE-ROMBERG STABLE TABLE S-33
Additional Forms of Gravity Data: ANALOG RECORDS, MICROFILM, DATA LOGGER
Seismic Instrumentation: (SEE BATHYMETRY INSTRUMENTATION)
Formats of Seismic Data: (SEE BATHYMETRY DATA)
Topmost Latitude of Survey: +32
Bottommost Latitude: +20
Leftmost Longitude: -158
Rightmost Longitude: -117
General Digitizing Rate of Bathymetry: 17
General Sampling Rate of Bathymetry: 1 PER SECOND
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: NO INTERPOLATION
General Digitizing Rate of Magnetics: 010
General Sampling Rate of Magnetics: 05
Magnetic Sensor Tow Distance: 0180
Horizontal Sensor Separation: 000
Reference Field Code: 04
Reference Field: IGRF 1975
Method of Applying Residual Field: CALCULATED FOR EACH POINT
General Digitizing Rate of Gravity: 050
General Sampling Rate of Gravity: 00
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNATIONAL1930
Reference System Code: 2
Reference System: POTSDAM
Corrections Applied: NONE
Additional Documentation: 15 GRAVITY BASE STATIONS IN GEORGE P. WOOLLARD AND JOHN C. ROSE, 15 INTERNATIONAL GRAVITY MEASUREMENTS, MADISON, UNIV OF WISCONSIN, 1963, 15 DEPARTURE STILL METER READING 7182.2/TIE VALUE 978939.2 AT PIER 45, 15 GRAVIMETER JUDGED TO BE IN POOR SHAPE BY L&R REPAIRMAN AT CRUISE END, 15 DATA PERHAPS UNRELIABLE, 12 DIGITIZED WITH SHIP DIGITIZER AT 5 MIN INTERVALS+PEAKS+TROUGHS
Number of Data Records: 20301
Min/Max Data Record:
Date: 1978 12 30
Latitude: +20.38365
Longitude: -157.89213
Bathymetry, 2- Way Traveltime: 000630
Bathymetry, Corrected Depth: 47.0
Magnetics Total Field, 1st Sensor: 358950
Magnetics Residual Field: -06840
Free-Air Anomaly: -1149
Min/Max Data Record:
Date: 1979 01 09
Latitude: +31.67711
Longitude: -117.88405
Bathymetry, 2- Way Traveltime: 085810
Bathymetry, Corrected Depth: 6509.0
Magnetics Total Field, 1st Sensor: 453140
Magnetics Residual Field: +02930
Free-Air Anomaly: +2427