Survey Identifier: DSDP13GC
Format Acronym: MGD77
Data Center File Number: 15050011
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): RYAN B.F.,HSU K.J.
Project: DEEPSEA DRILL.LG 13 <NSF>
Survey Departure Date (yyyymmdd): 19700813
Port of Departure: LISBON,PORTUGAL
Survey Arrival Date (yyyymmdd): 19701006
Port of Arrival: LISBON,PORTUGAL
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: +41
Bottommost Latitude: +33
Leftmost Longitude: -012
Rightmost Longitude: +029
General Digitizing Rate of Bathymetry: 76
General Sampling Rate of Bathymetry: 1SECONDSWEEP
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
Interpolation Scheme: PEAK AND TROUGH
General Digitizing Rate of Magnetics: 136
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: 13514
Min/Max Data Record:
Date: 1970 08 14
Latitude: +33.07820
Longitude: -11.46250
Bathymetry, 2- Way Traveltime: 000450
Bathymetry, Corrected Depth: 34.0
Magnetics Total Field, 1st Sensor: 421500
Magnetics Residual Field: -05300
Min/Max Data Record:
Date: 1970 10 06
Latitude: +40.65000
Longitude: +28.53070
Bathymetry, 2- Way Traveltime: 063700
Bathymetry, Corrected Depth: 4821.0
Magnetics Total Field, 1st Sensor: 453000
Magnetics Residual Field: +08650