Survey Identifier: RAMA14WT
Format Acronym: MGD77
Data Center File Number: 15040121
Parameters Surveyed Code: 55111
File Creation Date (yyyymmdd): 19811006
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: R/V THOMAS WASHINGTON
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): OWENS B.
Project: RAMA LEG 14 <ONR-0440,DMA 800-81-C-0023>
Survey Departure Date (yyyymmdd): 19810607
Port of Departure: ADAK,ALASKA
Survey Arrival Date (yyyymmdd): 19810620
Port of Arrival: DUTCH HARBOR,ALASKA
Navigation Instrumentation: SATNAV,AUTO LOG GYRO+2D DOPPLER SPD LOG
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: 12KHZ/RAYTHEON UGR RECORDER/WIDE 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: +55
Bottommost Latitude: +45
Leftmost Longitude: -177
Rightmost Longitude: -165
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: 2SECONDSWEEP
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: 3847
Min/Max Data Record:
Date: 1981 06 07
Latitude: +45.49780
Longitude: -176.64011
Bathymetry, 2- Way Traveltime: 060825
Bathymetry, Corrected Depth: 4549.0
Magnetics Total Field, 1st Sensor: 446780
Magnetics Residual Field: -06070
Min/Max Data Record:
Date: 1981 06 20
Latitude: +54.02950
Longitude: -165.10391
Bathymetry, 2- Way Traveltime: 079150
Bathymetry, Corrected Depth: 5969.0
Magnetics Total Field, 1st Sensor: 475840
Magnetics Residual Field: +06040