Survey Identifier: DSDP15GC
Format Acronym: MGD77
Data Center File Number: 15050013
Parameters Surveyed Code: 55113
File Creation Date (yyyymmdd): 19791122
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: D/V GLOMAR CHALLENGER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): EDGAR N.T.,SAUNDERS J.
Project: DEEPSEA DRILL. LG 15<NSF>
Survey Departure Date (yyyymmdd): 19701205
Port of Departure: SAN JUAN,PUERTO RICO
Survey Arrival Date (yyyymmdd): 19710202
Port of Arrival: CRISTOBAL,CANAL ZONE
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: +19
Bottommost Latitude: +09
Leftmost Longitude: -081
Rightmost Longitude: -063
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
Additional Documentation: *TIME*NAV AND RECORDS ORIGINALLY IN LOCAL TZ. DIGITIZED DATA CONVERTED TO GMT.
Number of Data Records: 4949
Min/Max Data Record:
Date: 1970 12 05
Latitude: +9.72880
Longitude: -80.47160
Bathymetry, 2- Way Traveltime: 000174
Bathymetry, Corrected Depth: 13.0
Magnetics Total Field, 1st Sensor: 374850
Magnetics Residual Field: -09250
Min/Max Data Record:
Date: 1971 02 02
Latitude: +18.60470
Longitude: -63.67330
Bathymetry, 2- Way Traveltime: 071974
Bathymetry, Corrected Depth: 5464.0
Magnetics Total Field, 1st Sensor: 437250
Magnetics Residual Field: +00450