Survey Identifier: ODP145JR
Format Acronym: MGD77
Data Center File Number: 23060049
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19
Source Institution: TEXAS A+M UNIV. OCEAN DRILLING PROGRAM
Country: USA
Platform Name: JOIDESRESOLUTION
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): D.REA, I.BASOV, T.JANECEK
Project: OCEAN DRILLING PROGRAM LEG 145
Survey Departure Date (yyyymmdd): 19920724
Port of Departure: YOKOHAMA, JAPAN
Survey Arrival Date (yyyymmdd): 19920920
Port of Arrival: VICTORIA, BRITISH COLUMBIA
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: WATERGUNS
Formats of Seismic Data: ANAL.REC., 35MM FILM< DIGITAL MAG TAPE
Topmost Latitude of Survey: +55
Bottommost Latitude: +34
Leftmost Longitude: +139
Rightmost Longitude: -124
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-85
Method of Applying Residual Field: LIN.INTERP.POINTS WITHIN ONE DEGREE PLANE
Additional Documentation: 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: 18704
Min/Max Data Record:
Date: 1992 07 24
Latitude: +34.81523
Longitude: -179.99682
Bathymetry, 2- Way Traveltime: 030093
Bathymetry, Corrected Depth: 2225.0
Magnetics Total Field, 1st Sensor: 446370
Magnetics Residual Field: -06946
Min/Max Data Record:
Date: 1992 09 20
Latitude: +54.43076
Longitude: +179.98810
Bathymetry, 2- Way Traveltime: 100880
Bathymetry, Corrected Depth: 7693.0
Magnetics Total Field, 1st Sensor: 552000
Magnetics Residual Field: +06106