Survey Identifier: DPSN01WT
Format Acronym: MGD77
Data Center File Number: 15040085
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19811016
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: DEEPSONDE LEG 1
Survey Departure Date (yyyymmdd): 19760110
Port of Departure: SAN DIEGO
Survey Arrival Date (yyyymmdd): 19760201
Port of Arrival: SAN DIEGO
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,PUNCH CARDS
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: -149
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: 03
Reference Field: IGRF 1965
Method of Applying Residual Field: LIN. INTERP.POINTS WITHIN ONE DEGREE SQUARE
General Digitizing Rate of Gravity: 56
Number of Data Records: 6323
Min/Max Data Record:
Date: 1976 01 10
Latitude: +15.06220
Longitude: -148.20040
Bathymetry, 2- Way Traveltime: 001175
Bathymetry, Corrected Depth: 88.0
Magnetics Total Field, 1st Sensor: 352760
Magnetics Residual Field: -06060
Free-Air Anomaly: -0723
Min/Max Data Record:
Date: 1976 02 01
Latitude: +32.66110
Longitude: -117.20070
Bathymetry, 2- Way Traveltime: 082300
Bathymetry, Corrected Depth: 6233.0
Magnetics Total Field, 1st Sensor: 499500
Magnetics Residual Field: +13500
Free-Air Anomaly: +0620