Survey Identifier: MARA11WT
Format Acronym: MGD77
Data Center File Number: 15040104
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19820407
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: R/V THOMAS WASHINGTON
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): SHOR G.G.
Project: MARIANA LEG 11 <NSF OCE78-16758>
Survey Departure Date (yyyymmdd): 19790702
Port of Departure: SUBIC BAY,PHILIPPINES
Survey Arrival Date (yyyymmdd): 19790801
Port of Arrival: HONOLULU,HAWAII
Navigation Instrumentation: SATNAV,AUTO LOG GYRO+2D DOPPLER SPD LOG
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: 3.5-12KHZ/UGR,GIFFT RECORDERS/WIDEBEAM
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,35MMFILM
Seismic Instrumentation: 20TO300CU.IN.AIRGUN,10-300HZ,EDO PSR REC
Formats of Seismic Data: ANAL.RECORDS,35MM MICROFILM
Topmost Latitude of Survey: +22
Bottommost Latitude: +10
Leftmost Longitude: +120
Rightmost Longitude: -157
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: 8684
Min/Max Data Record:
Date: 1979 07 02
Latitude: +10.91600
Longitude: -179.99719
Bathymetry, 2- Way Traveltime: 000325
Bathymetry, Corrected Depth: 24.0
Magnetics Total Field, 1st Sensor: 333890
Magnetics Residual Field: -09340
Min/Max Data Record:
Date: 1979 08 01
Latitude: +21.51840
Longitude: +179.98790
Bathymetry, 2- Way Traveltime: 105850
Bathymetry, Corrected Depth: 8097.0
Magnetics Total Field, 1st Sensor: 397310
Magnetics Residual Field: +07040