Survey Identifier: MW8515
Format Acronym: MGD77
Data Center File Number: 08020025
Parameters Surveyed Code: 55513
File Creation Date (yyyymmdd): 19901207
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): DON HUSSONG/FRIS CAMPBELL
Project: MW8515. HDWC BOTTOM ROUGHNESS SURVEY.
Funding: HDWC DREDG./SEAGRANT
Survey Departure Date (yyyymmdd): 19851026
Port of Departure: HONOLULU,HAWAII
Survey Arrival Date (yyyymmdd): 19851029
Port of Arrival: KAWAIHAE,HAWAII
Navigation Instrumentation: GPS,SATNAV,TRISPONDER
Geodetic Datum/Position: PRIM=GPS, SEC=TRISP, TER=SATNAV
Bathymetry Instrumentation: 3.5 KHZ 30 DEGREE BEAM, 1 SEC SWEEP
Additional Forms of Bathymetric Data: ANALOG, DIGITAL, MICROFILM
Magnetics Instrumentation: GEOMETRICS PROTON MAGNETOMETER G-801
Additional Forms of Magnetics Data: ANALOG, DIGITAL
Gravity Instrumentation: LACOSTE ROMBERG S-33
Additional Forms of Gravity Data: ANALOG, DIGITAL
Seismic Instrumentation: NONE
Topmost Latitude of Survey: +21
Bottommost Latitude: +18
Leftmost Longitude: -159
Rightmost Longitude: -155
General Digitizing Rate of Bathymetry: 015
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: 20
Magnetic Sensor Tow Distance: 0000
Sensor Depth: 00000
Horizontal Sensor Separation: 000
Reference Field Code: 12
Reference Field: IGRF-1985
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: 8
Theoretical Gravity Formula: IAG SYSTEM 1974
Reference System Code: 3
Reference System: IGSN 71
Corrections Applied: NONE APPLIED
Departure Base Station Gravity: 9789234
Departure Base Station Description: HONOLULU PIER 45 (DIAL=6944.5)
Arrival Base Station Gravity: 9789234
Arrival Base Station Description: HONOLULU PIER 45
Additional Documentation: DATA TAKEN ON BOARD: BMG. SEAMARC II SIDESCAN SONAR AND BATHY, CURRENT METER, WIND. GRAVITY STILL METER: 6944.5. -158.39,-155.95,18.58,20.73.
Number of Data Records: 7239
Min/Max Data Record:
Date: 1985 10 26
Latitude: +18.57795
Longitude: -158.38670
Bathymetry, 2- Way Traveltime: 000740
Bathymetry, Corrected Depth: 56.0
Magnetics Total Field, 1st Sensor: 340010
Magnetics Residual Field: -14770
Observed Gravity: 9785192
Free-Air Anomaly: -1144
Min/Max Data Record:
Date: 1985 10 29
Latitude: +20.72525
Longitude: -155.95454
Bathymetry, 2- Way Traveltime: 063960
Bathymetry, Corrected Depth: 4810.0
Magnetics Total Field, 1st Sensor: 356190
Magnetics Residual Field: +04420
Observed Gravity: 9788825
Free-Air Anomaly: +2094