Survey Identifier: GECS-CMV


Format Acronym: MGD77
Data Center File Number: 15020036
Parameters Surveyed Code: 55111
File Creation Date (yyyymmdd): 19811013
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: R/V MELVILLE
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): TAKAHASHI T.
Project: GEOSECS LEG C
Survey Departure Date (yyyymmdd): 19731008
Port of Departure: ADAK
Survey Arrival Date (yyyymmdd): 19731025
Port of Arrival: TOKYO,JAPAN
Navigation Instrumentation: SATNAV,MANUAL ENTRY GYRO AND SPD CHANGES
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: 12KHZ/GIFFT RECORDER/WIDE(60DEG)BEAM
Additional Forms of Bathymetric Data: ANALOGUE RECORDS,PUNCHED CARDS
Magnetics Instrumentation: VARIAN MFD PROTON PRECESSION MOD 4970
Additional Forms of Magnetics Data: ANAL.RECORDS,CARDS
Topmost Latitude of Survey: +54
Bottommost Latitude: +34
Leftmost Longitude: +139
Rightmost Longitude: -176
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: 03
Reference Field: IGRF 1965
Method of Applying Residual Field: LIN. INTERP.POINTS WITHIN ONE DEGREE SQUARE
Number of Data Records: 5105

Min/Max Data Record:
Date: 1973 10 08
Latitude: +34.22320
Longitude: -179.99570
Bathymetry, 2- Way Traveltime: 002774
Bathymetry, Corrected Depth: 213.0
Magnetics Total Field, 1st Sensor: 419630
Magnetics Residual Field: -08280

Min/Max Data Record:
Date: 1973 10 25
Latitude: +53.15550
Longitude: +179.99560
Bathymetry, 2- Way Traveltime: 099500
Bathymetry, Corrected Depth: 7592.0
Magnetics Total Field, 1st Sensor: 490000
Magnetics Residual Field: +08560