New Capabilities of the SCEC Unified Community Velocity Model (UCVM) Software Framework
Abstract
The Southern California Earthquake Center (SCEC) has developed the open-source Unified Community Velocity Model (UCVM) software framework to facilitate the registration and distribution of existing and future seismic velocity models to the research community including geologists, seismic wave propagation modelers, and other seismic hazard and engineering risk modelers. The UCVM software framework is designed to provide a standard query interface to multiple, alternative seismic velocity models, even if the underlying velocity models are defined in different formats, or use different geographic projections. The UCVM framework provides a comprehensive set of open-source tools for querying seismic velocity model properties, combining regional 3D models and 1D background models, visualizing 3D models, and generating computational meshes in the form of regular grids or unstructured meshes that can be used as inputs for physics-based ground-motion simulations. This year, SCEC released UCVM software v19.4 which adds several new capabilities. UCVM v19.4 can now add an optional Ely-Jordan geotechnical layer into any UCVM-supported velocity model that lacks low Vs values in near-surface areas, making these models more useful in ground motion simulations. UCVM v19.4 now uses the 2015 Wills Vs30 map, and use the latest Proj.5 projection library, and has improved multi-models tiling. UCVM v19.4 can now provide access to a central California velocity model, called CS17.3-H, that includes an updated San Joaquin Basin model and a Santa Maria Basin model developed by the Harvard Structural Geology and Earth Resources group.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2019
- Bibcode:
- 2019AGUFMNS21A..17M
- Keywords:
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- 1902 Community modeling frameworks;
- INFORMATICS;
- 1976 Software tools and services;
- INFORMATICS;
- 1978 Software re-use;
- INFORMATICS;
- 3299 General or miscellaneous;
- MATHEMATICAL GEOPHYSICS