Survey Identifier: ODP146JR
Format Acronym: MGD77
Data Center File Number: 23060050
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19
Source Institution: TEXAS A+M UNIV. OCEAN DRILLING PROGRAM
Country: USA
Platform Name: D/V JOIDES RESOLUTION
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): B.CARSON,G.WESTBROOK,B.MUSGRAV
Project: OCEAN DRILLING PROGRAM LEG 146
Survey Departure Date (yyyymmdd): 19920925
Port of Departure: VICTORIA, BRITISH COLUMBIA
Survey Arrival Date (yyyymmdd): 19921122
Port of Arrival: SAN DIEGO, CALIFORNIA
Navigation Instrumentation: MAGNAVOX TRANSIT & GPS & LORAN C
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: 3.5&12KHZ PDR
Additional Forms of Bathymetric Data: ANAL.REC,35MM FILM,DIGITAL MAG.TAPE
Magnetics Instrumentation: GEOMETRICS 801 PROTON
Additional Forms of Magnetics Data: ANAL.REC,35MM FILM,DIGITAL MAG.TAPE
Gravity Instrumentation: NONE COLLECTED
Seismic Instrumentation: H20 & AIR GUNS
Formats of Seismic Data: ANAL.REC., 35MM FILM, DIGITAL MAG TAPE
Topmost Latitude of Survey: +49
Bottommost Latitude: +33
Leftmost Longitude: -129
Rightmost Longitude: -118
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: 1SECONDSWEEP
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: 5 MINUTE INTERVAL (DEPTHS PICKED AT 5 MINUTE INTERVALS)
General Digitizing Rate of Magnetics: 010
General Sampling Rate of Magnetics: 06
Reference Field Code: IG
Reference Field: RF-90
Method of Applying Residual Field: LIN.INTERP.POINTS WITHIN ONE DEGREE PLANE
Additional Documentation: PROCESSED BY GEOLOGICAL DATA CENTER-SIO FOR OCEAN DRILLING PROJECT. ORIGINAL RECORDS ARCHIVED AT ODP, NAVIGATION ON/OFF SITES MAY BE INACCURATE DUE TO INSUFFICIENT COURSE, AND SPEED DATA. 1 MINUTE GPS FIXES ARE USED ON THE SURVEY BEFORE THE, SITE WHEN AVAILABLE AND SPEEDS ARE SET TO ZERO IF UNKNOWN. THIS RESULTS IN, LINEAR INTERPOLATION BETWEEN ONE MINUTE FIXES.
Number of Data Records: 6356
Min/Max Data Record:
Date: 1992 09 25
Latitude: +33.40733
Longitude: -128.74542
Bathymetry, 2- Way Traveltime: 000867
Bathymetry, Corrected Depth: 65.0
Magnetics Total Field, 1st Sensor: 485770
Magnetics Residual Field: -05294
Min/Max Data Record:
Date: 1992 11 22
Latitude: +48.69917
Longitude: -118.67433
Bathymetry, 2- Way Traveltime: 043920
Bathymetry, Corrected Depth: 3273.0
Magnetics Total Field, 1st Sensor: 560530
Magnetics Residual Field: +05951