Survey Identifier: DSDP32GC

Format Acronym: MGD77
Data Center File Number: 15050030
Parameters Surveyed Code: 55113
File Creation Date (yyyymmdd): 19791124
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: D/V GLOMAR CHALLENGER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): LARSON R.L.,MOBERLY R.M.
Project: DEEPSEA DRILL.LG 32 <NSF>
Survey Departure Date (yyyymmdd): 19730815
Port of Departure: HAKODATE,JAPAN
Survey Arrival Date (yyyymmdd): 19731011
Port of Arrival: HONOLULU,HAWAII
Navigation Instrumentation: SATNAV,MANUAL ENTRY GYRO AND SPD CHANGES
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: 12KHZ/GIFFT RECORDER/WIDE(60DEG)BEAM
Additional Forms of Bathymetric Data: ANAL.RECORDS,CARDS,35MMFILM
Magnetics Instrumentation: VARIAN MFD PROTON PRECESSION MOD 4970
Additional Forms of Magnetics Data: ANAL.RECORDS,CARDS,35MMFILM
Gravity Instrumentation: NONE COLLECTED
Seismic Instrumentation: 20TO300CU.IN.AIRGUN,10-300HZ,EDO PSR REC
Formats of Seismic Data: ANAL.RECORDS,35MM MICROFILM
Topmost Latitude of Survey: +42
Bottommost Latitude: +20
Leftmost Longitude: +140
Rightmost Longitude: -162
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: 1SECONDSWEEP
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
Interpolation Scheme: 5 MINUTE INTERVAL
General Digitizing Rate of Magnetics: 050
General Sampling Rate of Magnetics: 06
Reference Field Code: 03
Reference Field: IGRF 1965
Method of Applying Residual Field: LIN.INTERP.AT 30DEG C/C OR 500MI ALONG TRACK
Number of Data Records: 5706

Min/Max Data Record:
Date: 1973 08 15
Latitude: +20.12420
Longitude: -179.99600
Bathymetry, 2- Way Traveltime: 001074
Bathymetry, Corrected Depth: 81.0
Magnetics Total Field, 1st Sensor: 342750
Magnetics Residual Field: -09400

Min/Max Data Record:
Date: 1973 10 09
Latitude: +41.67630
Longitude: +179.99610
Bathymetry, 2- Way Traveltime: 094450
Bathymetry, Corrected Depth: 7165.0
Magnetics Total Field, 1st Sensor: 490850
Magnetics Residual Field: +14150