Survey Identifier: DSDP85GC


Format Acronym: MGD77
Data Center File Number: 15050085
Parameters Surveyed Code: 55153
File Creation Date (yyyymmdd): 19821217
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: D/V GLOMAR CHALLENGER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): MAYER L.,THEYER F.
Project: DEEPSEA DRILL.LG85 <NSF OCE80-24472>
Survey Departure Date (yyyymmdd): 19820311
Port of Departure: SAN PEDRO,CALIF
Survey Arrival Date (yyyymmdd): 19820501
Port of Arrival: HONOLULU,HAWAII
Navigation Instrumentation: SATNAV,MANUAL ENTRY GYRO AND SPD CHANGES
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: 3.5-12KHZ/EDO 550A RECORDERS/WIDE BEAM
Additional Forms of Bathymetric Data: ANAL.RECORDS,CARDS,35MMFILM
Magnetics Instrumentation: GEOMETRICS MAGNETOMETER MOD G-801/3
Additional Forms of Magnetics Data: ANAL.RECORDS,CARDS,35MMFILM
Seismic Instrumentation: 20TO300CU.IN.AIRGUN,10-300HZ,EDO 550 REC
Formats of Seismic Data: ANAL.RECORDS,35MM MICROFILM
Topmost Latitude of Survey: +32
Bottommost Latitude: +00
Leftmost Longitude: -156
Rightmost Longitude: -113
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
General Digitizing Rate of Magnetics: 050
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
Additional Documentation: *DEPTH ERROR* AT 25APR82 0935Z,DEPTH=4838. SHOULD BE 4638
Number of Data Records: 6936

Min/Max Data Record:
Date: 1982 03 11
Latitude: -0.00679
Longitude: -155.56190
Bathymetry, 2- Way Traveltime: 006075
Bathymetry, Corrected Depth: 455.0
Magnetics Total Field, 1st Sensor: 318910
Magnetics Residual Field: -06290

Min/Max Data Record:
Date: 1982 05 01
Latitude: +31.87030
Longitude: -113.82360
Bathymetry, 2- Way Traveltime: 082450
Bathymetry, Corrected Depth: 6245.0
Magnetics Total Field, 1st Sensor: 482200
Magnetics Residual Field: +04980