Survey Identifier: GMBL01EB
Format Acronym: MGD77
Data Center File Number: 15030004
Parameters Surveyed Code: 55111
File Creation Date (yyyymmdd): 19800930
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): CHASE C.
Project: GAMBUL LEG 1
Survey Departure Date (yyyymmdd): 19681002
Port of Departure: SAN DIEGO,CALIFORNIA
Survey Arrival Date (yyyymmdd): 19681014
Port of Arrival: SAN DIEGO,CALIFORNIA
Navigation Instrumentation: CELESTIAL,MANUAL ENTRY GYRO SPEED
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: +21
Leftmost Longitude: -119
Rightmost Longitude: -110
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: 3002
Min/Max Data Record:
Date: 1968 10 02
Latitude: +21.47760
Longitude: -118.21730
Bathymetry, 2- Way Traveltime: 000250
Bathymetry, Corrected Depth: 19.0
Magnetics Total Field, 1st Sensor: 433350
Magnetics Residual Field: -06950
Min/Max Data Record:
Date: 1968 10 14
Latitude: +32.61650
Longitude: -110.26710
Bathymetry, 2- Way Traveltime: 055700
Bathymetry, Corrected Depth: 4172.0
Magnetics Total Field, 1st Sensor: 494800
Magnetics Residual Field: +06550