Survey Identifier: EPLL01WT
Format Acronym: MGD77
Data Center File Number: 15040118
Parameters Surveyed Code: 55333
File Creation Date (yyyymmdd): 19820921
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: R/V THOMAS WASHINGTON
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): DORMAN L.
Project: E.PAC. LONGLINE LG-1<NSF OCE76-22680>
Survey Departure Date (yyyymmdd): 19771011
Port of Departure: SAN DIEGO,CALIFORNIA
Survey Arrival Date (yyyymmdd): 19771106
Port of Arrival: SAN DIEGO,CALIFORNIA
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: ANAL.RECORDS,CARDS,35MMFILM(3.5KHZ)
Magnetics Instrumentation: VARIAN MFD PROTON PRECESSION MOD 4970
Additional Forms of Magnetics Data: ANAL.RECORDS,CARDS
Gravity Instrumentation: ASKANIA GSS2,ANSCHUTZ ELECT. GYRO TABLE
Additional Forms of Gravity Data: ANALOGUE RECORDS
Seismic Instrumentation: 20TO300CU.IN.AIRGUN,10-300HZ,EDO PSR REC
Formats of Seismic Data: ANAL.RECORDS,35MM MICROFILM
Topmost Latitude of Survey: +33
Bottommost Latitude: +15
Leftmost Longitude: -148
Rightmost Longitude: -117
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: 7637
Min/Max Data Record:
Date: 1977 10 11
Latitude: +15.26330
Longitude: -147.45109
Bathymetry, 2- Way Traveltime: 006300
Bathymetry, Corrected Depth: 471.0
Magnetics Total Field, 1st Sensor: 352860
Magnetics Residual Field: -05310
Min/Max Data Record:
Date: 1977 11 06
Latitude: +32.52350
Longitude: -117.39720
Bathymetry, 2- Way Traveltime: 082500
Bathymetry, Corrected Depth: 6249.0
Magnetics Total Field, 1st Sensor: 488150
Magnetics Residual Field: +04120