Survey Identifier: ODP138JR
Format Acronym: MGD77
Data Center File Number: 23060042
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19
Source Institution: TEXAS A+M UNIVERSITY
Country: USA
Platform Name: JOIDESRESOLUTION
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): L.MAYER,N.PISIAS, T.JANECK
Project: OCEAN DRILLING PROGRAM LEG 138
Survey Departure Date (yyyymmdd): 19910506
Port of Departure: BALBOA, PANAMA
Survey Arrival Date (yyyymmdd): 19910704
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: WATER GUNS S-80
Formats of Seismic Data: ANAL.REC, 35MM FILM, DIGITAL MAG TAPE
Topmost Latitude of Survey: +22
Bottommost Latitude: -04
Leftmost Longitude: -113
Rightmost Longitude: -079
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.
Number of Data Records: 26349
Min/Max Data Record:
Date: 1991 05 06
Latitude: -3.10116
Longitude: -112.70900
Bathymetry, 2- Way Traveltime: 000627
Bathymetry, Corrected Depth: 47.0
Magnetics Total Field, 1st Sensor: 305330
Magnetics Residual Field: -08870
Min/Max Data Record:
Date: 1991 07 02
Latitude: +21.87567
Longitude: -79.64117
Bathymetry, 2- Way Traveltime: 060293
Bathymetry, Corrected Depth: 4528.0
Magnetics Total Field, 1st Sensor: 425390
Magnetics Residual Field: +07695