Survey Identifier: 78100300
Format Acronym: MGD77
Data Center File Number: 08010044
Parameters Surveyed Code: 55553
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): FRITZ THEYER
Project: PISTON CORING IN THE CENTRAL PACIFIC KK781003 LEG 00
Funding: O.N.R./N.S.F.
Survey Departure Date (yyyymmdd): 19781003
Port of Departure: HONOLULU, HAWAII, U.S.A.
Survey Arrival Date (yyyymmdd): 19781022
Port of Arrival: HONOLULU, HAWAII, U.S.A.
Navigation Instrumentation: SATELLITE, 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 G801 PROTON PRECESSION MAG
Additional Forms of Magnetics Data: ANALOG+MICROFILM TO 5 OCT, DATA LOGGER
Gravity Instrumentation: LACOSTE-ROMBERG STABLE TABLE S-33
Additional Forms of Gravity Data: ANALOG+MICROFILM TO 5 OCT, DATA LOGGER
Seismic Instrumentation: (SEE ADD.DOC. 18)
Formats of Seismic Data: ANALOG RECORDS, MICROFILM
Topmost Latitude of Survey: +22
Bottommost Latitude: +08
Leftmost Longitude: -171
Rightmost Longitude: -157
General Digitizing Rate of Bathymetry: 52
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 AT EACH POINT
General Digitizing Rate of Gravity: 010
General Sampling Rate of Gravity: 00
Theoretical Gravity Formula Code: 3
Theoretical Gravity Formula: IAGSYSTEM1967
Reference System Code: 3
Reference System: IGSN71
Corrections Applied: NO DRIFT/OPTICS BULB CHANGE 1000Z 9OCT
Additional Documentation: 09 40-400HZ, 4 OR 5 SEC SWEEP, 4500J SPARKER, 80CUIN AIRGUN, EEL, 15 14.7 MGAL SUBTRACTED FROM VALUES IN GEORGE P. WOOLLARD AND JOHN C. ROSE, 15 INTERNATIONAL GRAVITY MEASUREMENTS, MADISON, UNIV OF WISCONSIN, 1963, 15 DEPARTURE STILL METER READING 7187.7 3OCT78 USED UNTIL OPTICS BULB CHANGE, 15 ARRIVAL STILL METER READING 7184.3 30OCT78 USED FROM BULB CHANGE TO END, 15 TIE VALUE AT PIER 45, HONOLULU, 978924.3, 12 DIGITIZED WITH SHIP DIGITIZER AT HIG/5 MIN INTERVALS+PEAKS+TROUGHS
Number of Data Records: 30537
Min/Max Data Record:
Date: 1978 10 03
Latitude: +8.94429
Longitude: -170.91330
Bathymetry, 2- Way Traveltime: 000350
Bathymetry, Corrected Depth: 26.0
Magnetics Total Field, 1st Sensor: 327680
Magnetics Residual Field: -05290
Free-Air Anomaly: -0527
Min/Max Data Record:
Date: 1978 10 22
Latitude: +21.53713
Longitude: -157.66294
Bathymetry, 2- Way Traveltime: 079890
Bathymetry, Corrected Depth: 6045.0
Magnetics Total Field, 1st Sensor: 362610
Magnetics Residual Field: +04220
Free-Air Anomaly: +3244