Survey Identifier: 76080601


Format Acronym: MGD77
Data Center File Number: 08010034
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: KK76080601 N.PAC MAGNETOSTRATIGRAPHY/HAWN RIDGE MAGNETICS
Funding: O.N.R.
Survey Departure Date (yyyymmdd): 19760806
Port of Departure: HONOLULU, HAWAII, U.S.A.
Survey Arrival Date (yyyymmdd): 19760903
Port of Arrival: MIDWAY, 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: VARIAN PROTON PRECESSION MAGNETOMETER
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 ADD. DOCU. NO. 21)
Formats of Seismic Data: ANALOG RECORDS, MICROFILM
Topmost Latitude of Survey: +35
Bottommost Latitude: +21
Leftmost Longitude: +168
Rightmost Longitude: -157
General Digitizing Rate of Bathymetry: 58
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
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: 010
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
Arrival Base Station Description: NONE USED
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 7189.7 6AUG76/TIE VALUE AT PIER 18 978946.9, 09 40-300HZ, 40+300CUIN AIRGUNS, 4500J SPARKER, 5SEC REP RATE, EEL, SONOBUOYS, 12 DIGITIZED WITH PENTHOUSE DIGITIZER/15MIN INTERVALS+PEAKS+TROUGHS
Number of Data Records: 45311

Min/Max Data Record:
Date: 1976 08 06
Latitude: +21.22409
Longitude: -179.99994
Bathymetry, 2- Way Traveltime: 000150
Bathymetry, Corrected Depth: 11.0
Magnetics Total Field, 1st Sensor: 347730
Magnetics Residual Field: -13120
Free-Air Anomaly: -0954

Min/Max Data Record:
Date: 1976 09 03
Latitude: +34.43639
Longitude: +179.99999
Bathymetry, 2- Way Traveltime: 078920
Bathymetry, Corrected Depth: 5969.0
Magnetics Total Field, 1st Sensor: 393590
Magnetics Residual Field: +15510
Free-Air Anomaly: +3203