Survey Identifier: SOTW12WT
Format Acronym: MGD77
Data Center File Number: 15040052
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19800602
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: R/V THOMAS WASHINGTON
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): SPIESS F.N.
Project: SOUTHTOW LEG 12
Survey Departure Date (yyyymmdd): 19721229
Port of Departure: PAGO PAGO,SAMOA
Survey Arrival Date (yyyymmdd): 19730123
Port of Arrival: HONOLULU,HAWAII
Navigation Instrumentation: SATNAV,AUTOLOG GYRO + EMLOG
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: 3.5-12KHZ/GIFFT RECORDERS/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
Seismic Instrumentation: 20TO300CU.IN.AIRGUN,10-300HZ,EDO PSR REC
Formats of Seismic Data: ANAL.RECORDS,35MM MICROFILM
Topmost Latitude of Survey: +18
Bottommost Latitude: -15
Leftmost Longitude: -171
Rightmost Longitude: -158
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.AT 30DEG C/C OR 500MI ALONG TRACK
Number of Data Records: 2383
Min/Max Data Record:
Date: 1972 12 30
Latitude: -14.30160
Longitude: -170.60860
Bathymetry, 2- Way Traveltime: 000650
Bathymetry, Corrected Depth: 49.0
Magnetics Total Field, 1st Sensor: 326500
Magnetics Residual Field: -06800
Min/Max Data Record:
Date: 1973 01 22
Latitude: +17.89190
Longitude: -158.18690
Bathymetry, 2- Way Traveltime: 077900
Bathymetry, Corrected Depth: 5889.0
Magnetics Total Field, 1st Sensor: 393050
Magnetics Residual Field: +03650