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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 2021-619-FA

AKA: Sparker testing 2021

Other ID: none

Status: Completed

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

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

Principal Investigator(s): Patrick Hart

Affiliate Investigator(s): Jared Kluesner, USGS Dave Foster, USGS

Information Specialist(s): Alicia Balster-gee

Data Type(s): Seismics: Sparker

Scientific Purpose/Goals: Characterization of sparker source level decay with distance and water depth.

Vehicle(s): None

Start Port/Location: Santa Cruz, CA

End Port/Location: Santa Cruz, CA

Start Date: 2021-04-19

End Date: 2021-04-28

Equipment Used: Calibrated single channel phones, Mini sparker

Information to be Derived: Sparker sound levels

Summary of Activity and Data Gathered: Collected calibrated hydrophone sparker source levels at 0 to 4 km offsets at seven sites from 25m to 600 m water depths

Staff: Alicia Balster-gee

Affiliate Staff:

Notes:

Location:

Monterey canyon region

Boundaries
North: 37.09648707 South: 36.72920243 West: -122.47431993 East: -121.81507587

Platform(s):

photo of Parke Snavely
Parke Snavely

Publications

Balster-Gee, A.F., Baldwin, W.E., and Hart, P.E., 2022, Calibrated marine sparker source amplitude decay versus offset offshore Santa Cruz, California: U.S. Geological Survey data release, https://doi.org/10.5066/P9EHITBI.

Portals/Viewers

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Calibrated single channel phonesCalibrated hydrophone on RV San Lorenzo used to record sparker source levels deployed from RV Snavely ot distances of ~ 4 kmSparker
Mini sparkerSparker source was deployed from RV Snavely and source levels were recored by a calibrated hydrophone deployed from stationary RV San LorenzoSparker

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