Survey Identifier: DSDP86GC
Format Acronym: MGD77
Data Center File Number: 15050086
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19830701
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: D/V GLOMAR CHALLENGER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): BURCKLE L.H.,HEATH G.R.
Project: DEEPSEA DRILL.LG86 <OCE80-24472>
Survey Departure Date (yyyymmdd): 19820506
Port of Departure: HONOLULU,HAWAII
Survey Arrival Date (yyyymmdd): 19820618
Port of Arrival: YOKOHAMA,JAPAN
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: +44
Bottommost Latitude: +21
Leftmost Longitude: +143
Rightmost Longitude: -159
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: 6283
Min/Max Data Record:
Date: 1982 05 06
Latitude: +21.15490
Longitude: -179.99280
Bathymetry, 2- Way Traveltime: 023550
Bathymetry, Corrected Depth: 1756.0
Magnetics Total Field, 1st Sensor: 348040
Magnetics Residual Field: -06130
Min/Max Data Record:
Date: 1982 06 18
Latitude: +43.93180
Longitude: +179.99299
Bathymetry, 2- Way Traveltime: 095225
Bathymetry, Corrected Depth: 7244.0
Magnetics Total Field, 1st Sensor: 456940
Magnetics Residual Field: +12540