Survey Identifier: VLCN04MV


Format Acronym: MGD77
Data Center File Number: 15020081
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19811016
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: R/V MELVILLE
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): KULM L.D.
Project: VULCAN LEG 4 <NSF OCE77-23258>
Survey Departure Date (yyyymmdd): 19801110
Port of Departure: VALPARAISO,CHILE
Survey Arrival Date (yyyymmdd): 19801128
Port of Arrival: VALPARAISO,CHILE
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: PUNCHED CARDS
Magnetics Instrumentation: VARIAN MFD PROTON PRECESSION MOD 4970
Additional Forms of Magnetics Data: ANAL.RECORDS,CARDS
Seismic Instrumentation: 20TO300CU.IN.AIRGUN,DIGITAL 1 CHANNEL
Topmost Latitude of Survey: -32
Bottommost Latitude: -43
Leftmost Longitude: -077
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: 5084

Min/Max Data Record:
Date: 1980 11 10
Latitude: -42.18620
Longitude: -76.19620
Bathymetry, 2- Way Traveltime: 001700
Bathymetry, Corrected Depth: 128.0
Magnetics Total Field, 1st Sensor: 260740
Magnetics Residual Field: -02000

Min/Max Data Record:
Date: 1980 11 28
Latitude: -32.38120
Longitude: -71.61331
Bathymetry, 2- Way Traveltime: 080000
Bathymetry, Corrected Depth: 6048.0
Magnetics Total Field, 1st Sensor: 301780
Magnetics Residual Field: +04660