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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 2019-636-FA

AKA: 2019 Cascadia Margin Mapping

Other ID: none

Status: Completed

Organization(s): USGS, Pacific Coastal and Marine Science Center

Funding Program(s): Other (Other)

Principal Investigator(s): Janet Watt, Peter Dartnell, James Conrad

Affiliate Investigator(s):

Information Specialist(s): Peter Dartnell

Data Type(s): Sonar: Multibeam, Location-Elevation: Navigation, Electro-Magnetic: Magnetics

Scientific Purpose/Goals: Collect multibeam bathymetry, acoustic-backscatter, water-column backscatter, and magnetics data along the slope of the Cascadia margin to fill in gaps in hi-resolution multibeam imagery for subduction zone hazard characterization

Vehicle(s): Grand Caravan G41-1761S

Start Port/Location: Newport, OR

End Port/Location: Newport, OR

Start Date: 2019-08-12

End Date: 2019-08-23

Equipment Used: Magnetometer, Differential GPS, Kongsberg EM-710

Information to be Derived: bathymetry, acoustic-backscatter, water-column backscatter, magnetics

Summary of Activity and Data Gathered: Bathymetry, backscatter, water-column, and magnetics data collected were collected offshore Coos bay and in the eel basin

Staff: Peter Dartnell, James Conrad

Affiliate Staff:



central and southern Cascadia margin

North: 46.4378569 South: 40.27952567 West: -126.18896484 East: -123.59619141


photo of Fairweather



Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
MagnetometerG-882 marine magnetometer was towed behind the vessel and collected total field magnetic data during the cruiseMagnetics
Differential GPSPos-mv used for multibeam dataNavigation
No data was collected
Kongsberg EM-710Collected multibeam, backscatter, and water column dataMultibeam

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