Survey Identifier: VLCN08MV
Format Acronym: MGD77
Data Center File Number: 15020085
Parameters Surveyed Code: 55131
File Creation Date (yyyymmdd): 19811005
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: R/V MELVILLE
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): BALLARD,R.D.
Project: VULCNAN LEG 8 <NSF OCE80-24472 DMA800-81-C-0023>
Survey Departure Date (yyyymmdd): 19810414
Port of Departure: VALPARAISO,CHILE
Survey Arrival Date (yyyymmdd): 19810514
Port of Arrival: NUKU HIVA,MARQUESAS IS.
Navigation Instrumentation: SATNAV,AUTO LOG GYRO+2D DOPPLER SPD LOG
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: 3.5KHZ/PDR RECORDER/WIDE BEAM
Additional Forms of Bathymetric Data: ANAL.RECORDS,CARDS,35MMFILM
Magnetics Instrumentation: VARIAN MFD PROTON PRECESSION MOD 4970
Additional Forms of Magnetics Data: ANAL.RECORDS,CARDS
Topmost Latitude of Survey: -08
Bottommost Latitude: -33
Leftmost Longitude: -141
Rightmost Longitude: -071
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: 1SECONDSWEEP
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
Interpolation Scheme: 5 MINUTE INTERVAL
General Digitizing Rate of Magnetics: 050
General Sampling Rate of Magnetics: 06
Reference Field Code: 04
Reference Field: IGRF 1975
Method of Applying Residual Field: LIN. INTERP.POINTS WITHIN ONE DEGREE SQUARE
Number of Data Records: 8764
Min/Max Data Record:
Date: 1981 04 14
Latitude: -32.99750
Longitude: -140.09721
Bathymetry, 2- Way Traveltime: 007950
Bathymetry, Corrected Depth: 600.0
Magnetics Total Field, 1st Sensor: 265450
Magnetics Residual Field: -04540
Min/Max Data Record:
Date: 1981 05 14
Latitude: -8.92090
Longitude: -71.67340
Bathymetry, 2- Way Traveltime: 060250
Bathymetry, Corrected Depth: 4528.0
Magnetics Total Field, 1st Sensor: 338570
Magnetics Residual Field: +06870