Survey Identifier: 74071700


Format Acronym: MGD77
Data Center File Number: 08020002
Parameters Surveyed Code: 53111
File Creation Date (yyyymmdd): 19801229
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): JAMES E. ANDREWS
Project: IDOE FERROMANGANESE RESOURCES MN74-01 MW740717 LEG 00
Funding: N.S.F.(I.D.O.E.)
Survey Departure Date (yyyymmdd): 19740718
Port of Departure: HONOLULU, HAWAII, U.S.A.
Survey Arrival Date (yyyymmdd): 19740809
Port of Arrival: SAN DIEGO, CALIFORNIA, 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 RECORDS
Gravity Instrumentation: NONE
Seismic Instrumentation: (SEE BATHYMETRY INSTRUMENTATION)
Formats of Seismic Data: (SEE BATHYMETRY DATA)
Topmost Latitude of Survey: +28
Bottommost Latitude: +02
Leftmost Longitude: -158
Rightmost Longitude: -123
General Digitizing Rate of Bathymetry: 68
General Sampling Rate of Bathymetry: 1 PER SECOND
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: NO INTERPOLATION
Horizontal Sensor Separation: 000
Additional Documentation: 12 PAPER ADVANCE ON DEPTH RECORDER NOT AT CONSTANT RATE SOMETIMES. 12 TIME CERTAIN ON 30 MIN INTERVALS ONLY. DETAIL PROBABLY UNRELIABLE. 05 COURSE AND SPEED INPUT TO NAVIGATION PROGRAM IS FROM BRIDGE AND LAB LOGS, 05 RATHER THAN FROM CHART RECORDS (AS NONE NOW EXIST). SOMETIMES THESE ARE, 05 UNRELIABLE, PARTICULARLY DURING STATIONS.
Number of Data Records: 4574

Min/Max Data Record:
Date: 1974 07 18
Latitude: +2.86312
Longitude: -157.81029
Bathymetry, 2- Way Traveltime: 027690
Bathymetry, Corrected Depth: 2065.0

Min/Max Data Record:
Date: 1974 08 09
Latitude: +27.79859
Longitude: -123.55066
Bathymetry, 2- Way Traveltime: 082840
Bathymetry, Corrected Depth: 6276.0