Survey Identifier: V3213
Format Acronym: MGD77
Data Center File Number: 01030194
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): MARCUS LANGSETH
Project: CRUISEV32, LEG13
Funding: (SEE ADD DOC / 19)
Survey Departure Date (yyyymmdd): 19750819
Port of Departure: HAKODATE, JAPAN
Survey Arrival Date (yyyymmdd): 19750915
Port of Arrival: TOLYO, JAPAN
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: +50
Bottommost Latitude: +34
Leftmost Longitude: +130
Rightmost Longitude: +152
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, 03 -ONR N00014-75-C-0210
Number of Data Records: 7875
Min/Max Data Record:
Date: 1975 08 19
Latitude: +34.78490
Longitude: +130.67550
Bathymetry, 2- Way Traveltime: 000250
Bathymetry, Corrected Depth: 19.0
Magnetics Total Field, 1st Sensor: 438730
Magnetics Residual Field: -06990
Free-Air Anomaly: -3134
Min/Max Data Record:
Date: 1975 09 15
Latitude: +49.77770
Longitude: +151.50520
Bathymetry, 2- Way Traveltime: 124250
Bathymetry, Corrected Depth: 9556.0
Magnetics Total Field, 1st Sensor: 517510
Magnetics Residual Field: +07070
Free-Air Anomaly: +1883