Survey Identifier: BONZ03WT


Format Acronym: MGD77
Data Center File Number: 15040158
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19830815
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: R/V THOMAS WASHINGTON
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): MAMMERICKX J.
Project: BONANZA LEG 3 <GENERAL FUNDS>
Survey Departure Date (yyyymmdd): 19820613
Port of Departure: SAN DIEGO,CALIFORNIA
Survey Arrival Date (yyyymmdd): 19820619
Port of Arrival: SAN DIEGO,CALIFORNIA
Navigation Instrumentation: SATNAV,AUTO LOG GYRO+2D DOPPLER SPD LOG
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: SEABEAM VERT.BEAM(2&2/3DEG)&3.5KHZ(WIDE)
Additional Forms of Bathymetric Data: ANAL.REC,35MM FILM,DIGITAL MAG. TAPE
Magnetics Instrumentation: VARIAN MFD PROTON PRECESSION MOD 4970
Additional Forms of Magnetics Data: ANAL.RECORDS,CARDS,35MMFILM
Seismic Instrumentation: 20TO300CU.IN.AIRGUN,10-300HZ,EDO PSR REC
Formats of Seismic Data: ANAL.RECORDS,35MM MICROFILM
Topmost Latitude of Survey: +34
Bottommost Latitude: +28
Leftmost Longitude: -127
Rightmost Longitude: -117
General Digitizing Rate of Bathymetry: 010
General Sampling Rate of Bathymetry: 1TO10SECONDS
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 88
Interpolation Scheme: 1 MINUTE INTERVAL
General Digitizing Rate of Magnetics: 010
General Sampling Rate of Magnetics: 06
Reference Field Code: 80
Reference Field: IGRF 1980
Method of Applying Residual Field: LIN. INTERP.POINTS WITHIN ONE DEGREE SQUARE
General Digitizing Rate of Gravity: 000
Additional Documentation: DEPTH CORRECTED FOR SHIP DRAFT (5M), REAL TIME SEABEAM SWATHS BOOKS ON MICROFILM, NGDC has multibeam bathymetric data for this cruise, however the tracklines, found here in GEODAS do not exactly correspond to the multibm data available. Full resolution multibeam bathymetry NOT available for this survey from, DATA/TIME 8206191354000 to 8206192101000.
Number of Data Records: 8770

Min/Max Data Record:
Date: 1982 06 13
Latitude: +28.69510
Longitude: -126.35060
Bathymetry, 2- Way Traveltime: 001350
Bathymetry, Corrected Depth: 101.0
Magnetics Total Field, 1st Sensor: 444970
Magnetics Residual Field: -02910

Min/Max Data Record:
Date: 1982 06 19
Latitude: +33.26560
Longitude: -117.32449
Bathymetry, 2- Way Traveltime: 065125
Bathymetry, Corrected Depth: 4895.0
Magnetics Total Field, 1st Sensor: 485700
Magnetics Residual Field: +02370