Group A, Poster #019, Seismology
Assembling, integrating, and assessing 3D seismic velocity models for California
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Poster Presentation
2024 SCEC Annual Meeting, Poster #019, SCEC Contribution #13696 VIEW PDF
ody-wave tomography, but only for Vp. Guo et al. (in prep.) have developed a model for Vp and Vs encompassing the greater San Francisco Bay (SFB) region from joint body wave-surface wave tomography. We will also work with the USGS SFB velocity models (Vp and Vs), as recently updated by Hirakawa and Aagaard (2022). The goal is to provide all these models is four standardized formats: netCDF, GeoCSV, SW4, and SCEC UCVM-compatible. Python tools exist for converting from netCDF to GeoCSV and the reverse, and from simple table files to SW4. UCVM is also capable of handling simple table files. Visualization tools for netCDF are available from EarthScope's Earth Model Consortium, and work is in progress by Scott Marshal on an improved web tool for model visualization of models in the UCVM. The final phase will be comparing wavefield simulations for the SFB region to see which of these models performs best for that region.
References
Doody, C., et al., 2023, CANVAS: An adjoint waveform tomography model of California and Nevada, J. Geophys. Res.: Solid Earth 128, e2023JB027583.
EberhartâPhillips, D., et al., 2014, Imaging P and S attenuation in the Sacramento-San Joaquin Delta region, Northern California, Bull. Seism. Soc. Am. 104, 2322-2336.
Hirakawa, E., and B. Aagaard, 2022, Evaluation and updates for the USGS San Francisco Bay Region 3D seismic velocity model in the East and North Bay portions, Bull. Seism. Soc. Am. 112, 2070-2096.
Lin, G., et al., 2010, A California statewide three-dimensional seismic velocity model from both absolute and differential times, Bull. Seism. Soc. Am. 100, 225-240.
Thurber, C., et al., 2009, Regional three-dimensional seismic velocity model of the crust and uppermost mantle of northern California, J. Geophys. Res.: Solid Earth 114, B01304.
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References
Doody, C., et al., 2023, CANVAS: An adjoint waveform tomography model of California and Nevada, J. Geophys. Res.: Solid Earth 128, e2023JB027583.
EberhartâPhillips, D., et al., 2014, Imaging P and S attenuation in the Sacramento-San Joaquin Delta region, Northern California, Bull. Seism. Soc. Am. 104, 2322-2336.
Hirakawa, E., and B. Aagaard, 2022, Evaluation and updates for the USGS San Francisco Bay Region 3D seismic velocity model in the East and North Bay portions, Bull. Seism. Soc. Am. 112, 2070-2096.
Lin, G., et al., 2010, A California statewide three-dimensional seismic velocity model from both absolute and differential times, Bull. Seism. Soc. Am. 100, 225-240.
Thurber, C., et al., 2009, Regional three-dimensional seismic velocity model of the crust and uppermost mantle of northern California, J. Geophys. Res.: Solid Earth 114, B01304.
SHOW MORE