Survey Identifier: YAQ7103
Format Acronym: MGD77
Data Center File Number: 07010028
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19731030
Source Institution: OREGON STATE UNIVERSITY
Country: U.S.A.
Platform Name: YAQUINA
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): BRUCE MALFAIT
Project: NAZCA PLATE, YAQUINA LONG OCEAN CRUISE 1971 LEG 3
Funding: IDOE
Survey Departure Date (yyyymmdd): 19710919
Port of Departure: PUNTARENAS, COSTA RICA
Survey Arrival Date (yyyymmdd): 19711013
Port of Arrival: GUAYAQUIL, EQUADOR
Navigation Instrumentation: SATELLITE
Geodetic Datum/Position: SATELLITE, DEAD RECKONING
Bathymetry Instrumentation: 12 AND 3.5 KHZ WIDE BEAM (60 DEG)
Additional Forms of Bathymetric Data: ANALOG RECORDS, MICROFILM
Magnetics Instrumentation: GEOMETRICS G801/3 PROTON PRECESSION
Additional Forms of Magnetics Data: ANALOG RECORDS
Seismic Instrumentation: 40 CU. IN AIRGUN
Formats of Seismic Data: SINGLE CHANNEL ANALOG, MICROFILM
Topmost Latitude of Survey: +10
Bottommost Latitude: -03
Leftmost Longitude: -087
Rightmost Longitude: -080
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: 1 SEC SWEEP
Assumed Sound Velocity: 14300
Bathymetric Datum Code: 00
Interpolation Scheme: NONE
General Digitizing Rate of Magnetics: 050
General Sampling Rate of Magnetics: 03
Magnetic Sensor Tow Distance: 215
Sensor Depth: 30
Reference Field Code: 03
Reference Field: IGRF-65
Method of Applying Residual Field: LINEAR INTERPOLATION BETWEEN NAVIGATION POINTS
Number of Data Records: 7295
Min/Max Data Record:
Date: 1971 09 19
Latitude: -2.75830
Longitude: -86.35170
Bathymetry, 2- Way Traveltime: 000100
Bathymetry, Corrected Depth: 7.0
Magnetics Total Field, 1st Sensor: 313030
Magnetics Residual Field: -05450
Min/Max Data Record:
Date: 1971 10 14
Latitude: +9.91670
Longitude: -80.57500
Bathymetry, 2- Way Traveltime: 058250
Bathymetry, Corrected Depth: 4371.0
Magnetics Total Field, 1st Sensor: 366980
Magnetics Residual Field: +01540