Slow slip detectability in seafloor pressure records offshore Alaska

Fredrickson, Erik K.; Gomberg, Joan S.; Wilcock, William S. D.; Hautala, Susan L.; Hermann, Albert J.; Johnson, H. Paul

doi:10.1029/2022jb024767

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Slow slip detectability in seafloor pressure records offshore Alaska

2023
By Fredrickson, Erik K. ; Gomberg, Joan S. ; Wilcock, William S. D. ; ...
Source: Journal of Geophysical Research: Solid Earth (2023)

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Journal Title:

Journal of Geophysical Research: Solid Earth
Personal Author:

Fredrickson, Erik K. ; Gomberg, Joan S. ; Wilcock, William S. D. ; Hautala, Susan L. ; Hermann, Albert J. ; ... More +

Fredrickson, Erik K. ; Gomberg, Joan S. ; Wilcock, William S. D. ; Hautala, Susan L. ; Hermann, Albert J. ; Johnson, H. Paul Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; JISAO (Joint Institute for the Study of the Atmosphere and Ocean) ; PMEL (Pacific Marine Environmental Laboratory)

OAR (Oceanic and Atmospheric Research) ; JISAO (Joint Institute for the Study of the Atmosphere and Ocean) ; PMEL (Pacific Marine Environmental Laboratory) Less -
Description:

In subduction zones worldwide, seafloor pressure data are used to observe tectonic deformation, particularly from megathrust earthquakes and slow slip events (SSEs). However, such measurements are also sensitive to oceanographic circulation-generated pressures over a range of frequencies that conflate with tectonic signals of interest. Using seafloor pressure and temperature data from the Alaska Amphibious Community Seismic Experiment, and sea surface height data from satellite altimetry, we evaluate the efficacy of various seasonal and oceanographic pressure signal proxy corrections and conduct synthetic tests to determine their impact on the timing and amplitude prediction of ramp-like signals typical of SSEs. We find
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Earth And Planetary Sciences (miscellaneous) Geochemistry And Petrology Geophysics Space And Planetary Science
Source:

Journal of Geophysical Research: Solid Earth (2023)
DOI:

https://doi.org/10.1029/2022jb024767
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2169-9313;2169-9356;
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American Geophysical Union (AGU)
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Journal Article
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urn:sha256:ade6d7b403b0b26caba72acb6a9790e8e7471489fd97f98acfc5d3243453fb82
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https://repository.library.noaa.gov/view/noaa/53170/noaa_53170_DS1.pdf
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