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USGS Coastal and Marine Hazards and Resources Program

Field Activity Details for field activity 2021-650-FA

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AKA: Cascadia seafloor geodesy

Other ID: none

Status: Completed

Organization(s): USGS, Pacific Coastal and Marine Science Center, Scripps Institution Of Oceanography, La Jolla, Ca, USGS, Earthquake Hazards

Funding Program(s): Coastal and marine earthquake, tsunami, and landslide active margin field studies (ZP00EQV)

Principal Investigator(s): Janet Watt, Thomas Parsons

Affiliate Investigator(s): Ben Brooks (USGS), Todd Ericksen (USGS), David Price (SIO), David Chadwell (SIO)

Information Specialist(s): Robert Wyland, Rachel Marcuson

Data Type(s): Location-Elevation: Benchmarks, Environmental Data: CTD

Scientific Purpose/Goals: Install seafloor geodetic instrumentation, 2 sites = 6 monuments

Vehicle(s): MarFac; Ford F350 pickup/stake truck; 6 pass; G82-0317H

Start Port/Location: Eureka, CA

End Port/Location: Eureka, CA

Start Date: 2021-10-07

End Date: 2021-10-31

Equipment Used: geodetic, borrowed equipment

Information to be Derived: GNSS-A velocity vectors, characterize shallow locking along the subduction zone megathrust fault

Summary of Activity and Data Gathered: Successfully installed all 6 GPS-A benchmarks and made XSV sound velocity casts at each site location

Staff: Robert Wyland, Rachel Marcuson

Affiliate Staff:

Notes:

Location:

Southern Cascadia

Boundaries
North: 42.6824354 South: 40.73060848 West: -126.69433594 East: -124.18945313

Platform(s):

photo of Coral Sea
Coral Sea

Publications

Portals/Viewers

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
geodetic --- Benchmarks
borrowed equipment --- Species ID
Submersible Observations
Experiments (biological)
Surveys (biological)
Gravity
Ground Penetrating Radar
Magnetics
Resistivity
CO2
Conductivity
CTD
Current
Depth
Dissolved Oxygen
Fluorescence
Light
Meteorology
Methane
Nitrate
ORP
pH
Radon
Temperature
Tide
Turbidity
Wave
Experiments (geochemical)
Surveys (geochemical)
Other Imagery
Photo
Video
Benchmarks
LIDAR
Navigation
Profiles
Transects
Biology
Chemistry
Geology
Air Gun / Water Gun
Boomer
Bubble Gun
Multichannel
Ocean Bottom Seismometer
Sonobuoy
Sparker
Sub Bottom Profiler
Interferometric
Multibeam
Sidescan
Single Beam
Sound Velocity
Biology Monitoring
Geochemical Monitoring
Mooring (physical oceanography)
Ground Truthing

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