Survey Identifier: C1108
Format Acronym: MGD77
Data Center File Number: 01010051
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19890706
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: USA
Platform Name: ROBERT D. CONRAD
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): W. PITMAN
Project: CRUISE 11, LEG 8
Survey Departure Date (yyyymmdd): 19670627
Port of Departure: YOKOHAMI, JAPAN
Survey Arrival Date (yyyymmdd): 19670712
Port of Arrival: ADAK, ALASKA
Navigation Instrumentation: SATELLITE
Geodetic Datum/Position: SATELLITE/ DEAD RECKONING
Bathymetry Instrumentation: (SEE ADD DOC / 18)
Additional Forms of Bathymetric Data: ANALOG RECORDS
Magnetics Instrumentation: L-DGO MFG PROTON-PRECESSION
Additional Forms of Magnetics Data: ANALOG RECORDS
Gravity Instrumentation: ANSCHUTZ ELECTRICTABLE, ASKANIA GSS2-6
Additional Forms of Gravity Data: ANALOG RECORDS
Seismic Instrumentation: L-DGO 25CU-IN-AIRGUN,EEL,DRUM RECORDER
Formats of Seismic Data: TWO, 2 CHANNEL SHEET RECORDS
Topmost Latitude of Survey: +53
Bottommost Latitude: +34
Leftmost Longitude: +139
Rightmost Longitude: -176
General Digitizing Rate of Bathymetry: 060
General Sampling Rate of Bathymetry: ONE SECOND
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
Interpolation Scheme: NONE
General Digitizing Rate of Magnetics: 150
General Sampling Rate of Magnetics: 06
Reference Field Code: 03
Reference Field: IGRF-65
Method of Applying Residual Field: LINEAR INTERPOLATION BETWEEN TWO NAV PTS
General Digitizing Rate of Gravity: 100
General Sampling Rate of Gravity: 00
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNAT'L 1930
Reference System Code: 2
Reference System: POTSDAM SYSTEM
Additional Documentation: 06 -3.5 AND 12 KHZ, WIDE BEAM (60 DEG), 1 SECOND SWEEP
Number of Data Records: 4236
Min/Max Data Record:
Date: 1967 06 27
Latitude: +34.02350
Longitude: -179.99410
Bathymetry, 2- Way Traveltime: 000825
Bathymetry, Corrected Depth: 62.0
Magnetics Total Field, 1st Sensor: 393260
Magnetics Residual Field: -06170
Free-Air Anomaly: -2166
Min/Max Data Record:
Date: 1967 07 12
Latitude: +52.02790
Longitude: +179.98230
Bathymetry, 2- Way Traveltime: 104425
Bathymetry, Corrected Depth: 7975.0
Magnetics Total Field, 1st Sensor: 497400
Magnetics Residual Field: +12250
Free-Air Anomaly: +2189