Survey Identifier: 7TOW10WT
Format Acronym: MGD77
Data Center File Number: 15040039
Parameters Surveyed Code: 35113
File Creation Date (yyyymmdd): 19811109
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.
Project: SEVEN TOW LEG 10
Survey Departure Date (yyyymmdd): 19700915
Port of Departure: EUREKA,CALIFORNIA
Survey Arrival Date (yyyymmdd): 19700925
Port of Arrival: SAN DIEGO,CALIFORNIA
Navigation Instrumentation: SATNAV,AUTOLOG GYRO + EMLOG
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: 12KHZ/GIFFT RECORDER/WIDE(60DEG)BEAM
Additional Forms of Bathymetric Data: ANALOGUE RECORDS
Magnetics Instrumentation: VARIAN MFD PROTON PRECESSION MOD 4970
Additional Forms of Magnetics Data: ANAL.RECORDS,CARDS
Seismic Instrumentation: 40CU.IN.AIRGUN,10-300HZ,GIFFT RECORDER
Formats of Seismic Data: ANAL.RECORDS,35MM MICROFILM
Topmost Latitude of Survey: +43
Bottommost Latitude: +34
Leftmost Longitude: -126
Rightmost Longitude: -121
General Digitizing Rate of Bathymetry: 000
General Sampling Rate of Bathymetry: 1SECONDSWEEP
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
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: 733
Min/Max Data Record:
Date: 1970 09 16
Latitude: +34.14490
Longitude: -125.26880
Magnetics Total Field, 1st Sensor: 489600
Magnetics Residual Field: -04000
Min/Max Data Record:
Date: 1970 09 24
Latitude: +42.02660
Longitude: -121.23160
Magnetics Total Field, 1st Sensor: 531750
Magnetics Residual Field: +04550