Survey Identifier: V2814
Format Acronym: MGD77
Data Center File Number: 01030142
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19890703
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: U.S.A.
Platform Name: VEMA
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): DR. JOHN LADD
Project: CRUISE 28, LEG 14
Survey Departure Date (yyyymmdd): 19710520
Port of Departure: GUAM ISLAND
Survey Arrival Date (yyyymmdd): 19710618
Port of Arrival: SASEBO, 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 PROTRON-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.IN.AIRGUN, EEL,DRUM RECORDER
Formats of Seismic Data: TWO, 2-CHANNEL SHEET RECORDS
Topmost Latitude of Survey: +34
Bottommost Latitude: +09
Leftmost Longitude: +129
Rightmost Longitude: +149
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 NAV. PTS.
General Digitizing Rate of Gravity: 100
General Sampling Rate of Gravity: 00
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNATIONAL1930
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: 8888
Min/Max Data Record:
Date: 1971 05 20
Latitude: +9.72320
Longitude: +129.20290
Bathymetry, 2- Way Traveltime: 000375
Bathymetry, Corrected Depth: 28.0
Magnetics Total Field, 1st Sensor: 355310
Magnetics Residual Field: -05030
Free-Air Anomaly: -3499
Min/Max Data Record:
Date: 1971 06 18
Latitude: +33.09670
Longitude: +148.53400
Bathymetry, 2- Way Traveltime: 136500
Bathymetry, Corrected Depth: 10588.0
Magnetics Total Field, 1st Sensor: 472010
Magnetics Residual Field: +08930
Free-Air Anomaly: +1534