Survey Identifier: 8612
Format Acronym: MGD77
Data Center File Number: 08020009
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19870722
Source Institution: HAWAII INSTITUTE OF GEOPHYSICS
Country: U.S.A.
Platform Name: R/V MOANA WAVE
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): CHARLES HELSLEY
Project: TRANSIT LEG. MW8612.
Funding: NSF,HIG,AID
Survey Departure Date (yyyymmdd): 19861217
Port of Departure: HONOLULU, HAWAII,USA
Survey Arrival Date (yyyymmdd): 19870104
Port of Arrival: SUVA,FIJI
Navigation Instrumentation: GPS,LORAN-C,SATNAV
Geodetic Datum/Position: PRI=GPS,SEC=SAT&LORAN
Bathymetry Instrumentation: 3.5KHZ,30-DEGREE BEAM
Additional Forms of Bathymetric Data: ANALOG,DIGITAL,MICROFILM
Magnetics Instrumentation: MAG-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: (SEE ADD.DOC. 18)
Formats of Seismic Data: ANALOG,MICROFILM
Topmost Latitude of Survey: +21
Bottommost Latitude: -19
Leftmost Longitude: +168
Rightmost Longitude: -159
General Digitizing Rate of Bathymetry: 14
General Sampling Rate of Bathymetry: 1/SECOND
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: NONE(PICK PEAKS/TROUGHS OR 5-MIN INTERVALS IF SMOOTH)
General Digitizing Rate of Magnetics: 010
General Sampling Rate of Magnetics: 20
Magnetic Sensor Tow Distance: 0000
Sensor Depth: 00000
Horizontal Sensor Separation: 000
Reference Field Code: 04
Reference Field: IGRF-75
Method of Applying Residual Field: FOR EACH DATA VALUE.
General Digitizing Rate of Gravity: 010
General Sampling Rate of Gravity: 30
Theoretical Gravity Formula Code: 3
Theoretical Gravity Formula: IAGSYSTEM1967
Reference System Code: 3
Reference System: IGSN71
Corrections Applied: NONE APPLIED.
Departure Base Station Gravity: 9789243
Departure Base Station Description: HONOLULU, HAWAII
Arrival Base Station Gravity: 9786099
Arrival Base Station Description: KING'S WHARF,SUVA,FIJI
Additional Documentation: 09 40,120 CU.IN.AIRGUNS. DATA TAKEN:B,M,G, 09 SEISMIC,SIDESCAN SONAR(SEAMARC II),XBT,ADCP,RD(1), 15 GRAVITY BASE STATIONS IN GEORGE P. WOOLLARD AND JOHN C. ROSE, 15 INTERNATIONAL GRAVITY MEASUREMENTS, MADISON, UNIV OF WISCONSIN, 1963
Number of Data Records: 43118
Min/Max Data Record:
Date: 1986 12 17
Latitude: -18.56853
Longitude: -179.99862
Bathymetry, 2- Way Traveltime: 007370
Bathymetry, Corrected Depth: 559.0
Magnetics Total Field, 1st Sensor: 325530
Magnetics Residual Field: -06880
Observed Gravity: 9779620
Free-Air Anomaly: -0958
Min/Max Data Record:
Date: 1987 01 04
Latitude: +20.81345
Longitude: +179.99940
Bathymetry, 2- Way Traveltime: 084970
Bathymetry, Corrected Depth: 6443.0
Magnetics Total Field, 1st Sensor: 440080
Magnetics Residual Field: +05490
Observed Gravity: 9787500
Free-Air Anomaly: +1826