Survey Identifier: APRO-1EB
Format Acronym: MGD77
Data Center File Number: 15030001
Parameters Surveyed Code: 55111
File Creation Date (yyyymmdd): 19811012
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: R/V ELLEN B. SCRIPPS
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): ATWATER T.
Project: APHRODITE LEG 1
Survey Departure Date (yyyymmdd): 19680714
Port of Departure: SAN DIEGO,CALIFORNIA
Survey Arrival Date (yyyymmdd): 19680720
Port of Arrival: SAN DIEGO,CALIFORNIA
Navigation Instrumentation: CELESTIAL AND LORAN
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: 12KHZ/GIFFT RECORDER/WIDE(60DEG)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
Topmost Latitude of Survey: +33
Bottommost Latitude: +27
Leftmost Longitude: -123
Rightmost Longitude: -115
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: 1679
Min/Max Data Record:
Date: 1968 07 14
Latitude: +27.73020
Longitude: -122.57900
Bathymetry, 2- Way Traveltime: 000300
Bathymetry, Corrected Depth: 22.0
Magnetics Total Field, 1st Sensor: 455800
Magnetics Residual Field: -08300
Min/Max Data Record:
Date: 1968 07 20
Latitude: +32.55950
Longitude: -115.76290
Bathymetry, 2- Way Traveltime: 060774
Bathymetry, Corrected Depth: 4560.0
Magnetics Total Field, 1st Sensor: 497800
Magnetics Residual Field: +03900