Survey Identifier: GUAD01SP
Format Acronym: MGD77
Data Center File Number: 15380001
Parameters Surveyed Code: 55311
File Creation Date (yyyymmdd): 19
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: R/V ROBERT SPROUL
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): J.HILDEBRAND
Project: STUDENT CRUISE
Survey Departure Date (yyyymmdd): 19910311
Port of Departure: SAN DIEGO, CALIFORNIA
Survey Arrival Date (yyyymmdd): 19910325
Port of Arrival: SAN DIEGO, CALIFORNIA
Navigation Instrumentation: GPS
Geodetic Datum/Position: LIN.INTER.BETWEEN 1 MIN. FIXES
Bathymetry Instrumentation: 12 kHz EPC/EDO transceiver w/ sidescan
Additional Forms of Bathymetric Data: ANAL. RECORDS
Magnetics Instrumentation: EG&G GEOMETRICS Mod. 811
Additional Forms of Magnetics Data: ANAL. RECORDS
Gravity Instrumentation: LACOSTE-ROMBERG AIR/SEA METER S/N S-38
Additional Forms of Gravity Data: ANAL. RECORDS
Seismic Instrumentation: NONE
Topmost Latitude of Survey: +33
Bottommost Latitude: +28
Leftmost Longitude: -119
Rightmost Longitude: -117
General Digitizing Rate of Bathymetry: 010
General Sampling Rate of Bathymetry: 11SEC. SWEEP
Assumed Sound Velocity: 15000
Interpolation Scheme: MANUALLY PICKED FROM RECORDS
General Digitizing Rate of Magnetics: 030
General Sampling Rate of Magnetics: 69
Reference Field Code: 03
Reference Field: IGRF-1990
Method of Applying Residual Field: LIN.INTERP.POINTS WITHIN ONE DEGREE SQUARE
General Digitizing Rate of Gravity: 010
General Sampling Rate of Gravity: 10
Theoretical Gravity Formula Code: 3
Theoretical Gravity Formula: IAG SYSTEM 1967
Reference System Code: 3
Reference System: SYSTEM IGSN 71
Corrections Applied: EOTVOS AND METER DRIFT
Additional Documentation: MAGNETIC DATA PROCESSED UNDER DIRECTION OF P. LONSDALE, MPL/SIO
Number of Data Records: 15486
Min/Max Data Record:
Date: 1991 03 11
Latitude: +28.49067
Longitude: -118.83600
Bathymetry, 2- Way Traveltime: 000267
Bathymetry, Corrected Depth: 20.0
Magnetics Total Field, 1st Sensor: 450000
Magnetics Residual Field: -10405
Min/Max Data Record:
Date: 1991 03 25
Latitude: +32.70217
Longitude: -117.19783
Bathymetry, 2- Way Traveltime: 053400
Bathymetry, Corrected Depth: 3996.0
Magnetics Total Field, 1st Sensor: 470840
Magnetics Residual Field: +05433