Survey Identifier: V3312
Format Acronym: MGD77
Data Center File Number: 01030212
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19890703
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: USA
Platform Name: VEMA
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): JAMES COCHRAN
Project: CRUISE V33, LEG 12
Funding: ONR N00014-75-C-0210
Survey Departure Date (yyyymmdd): 19761127
Port of Departure: HAKODATE, JAPAN
Survey Arrival Date (yyyymmdd): 19761216
Port of Arrival: GUAM, MARIANA ISLANDS
Navigation Instrumentation: SATELLITE/ SEXTANT
Geodetic Datum/Position: SATELLITE/ DEAD RECKONING
Bathymetry Instrumentation: (SEE ADD DOC / 18)
Additional Forms of Bathymetric Data: ANALOG RECORDS
Magnetics Instrumentation: L-DGO MFG PROTON-PRECESSION
Additional Forms of Magnetics Data: ANALOG RECORDS
Gravity Instrumentation: GRAF-ASKANIA GSS2-12
Additional Forms of Gravity Data: ANALOG RECORDS
Seismic Instrumentation: L-DGO 25CU-IW-AIRGUN,EEL,DRUM RECORDER
Formats of Seismic Data: TWO,2-CHANNEL SHEET RECORDS
Topmost Latitude of Survey: +42
Bottommost Latitude: +13
Leftmost Longitude: +140
Rightmost Longitude: +155
General Digitizing Rate of Bathymetry: 060
General Sampling Rate of Bathymetry: ONE SECOND
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
Interpolation Scheme: NONE
General Digitizing Rate of Magnetics: 060
General Sampling Rate of Magnetics: 06
Reference Field Code: 03
Reference Field: IGRF-65
Method of Applying Residual Field: LINEAR INTERPOLATION BETWEEN TWO PTS
General Digitizing Rate of Gravity: 100
General Sampling Rate of Gravity: 00
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNAT'L 1930
Reference System Code: 2
Reference System: POTSDAM SYSTEM
Additional Documentation: 06 -3.5 AND 12 KHZ, WIDE BEAM (60 DEG), 1 SECOND SWEEP
Number of Data Records: 5996
Min/Max Data Record:
Date: 1976 11 27
Latitude: +13.46070
Longitude: +140.83830
Bathymetry, 2- Way Traveltime: 000750
Bathymetry, Corrected Depth: 56.0
Magnetics Total Field, 1st Sensor: 353360
Magnetics Residual Field: -11030
Free-Air Anomaly: -2348
Min/Max Data Record:
Date: 1976 12 16
Latitude: +41.71000
Longitude: +154.00250
Bathymetry, 2- Way Traveltime: 125875
Bathymetry, Corrected Depth: 9718.0
Magnetics Total Field, 1st Sensor: 488000
Magnetics Residual Field: +05090
Free-Air Anomaly: +2593