Regarding our computer programs, we are currently interested in software engineering performance related to accessibility, POSIX compliance, and backward compatibility. Still, our open-source software comes with no warranty.
Localizes functions in arbitrarily shaped domains on the regular Cartesian grid. It is designed as both a C library and a suite of command-line tools. It currently supports over 50 window taper functions in dimensions up to 3. Applications include filter designs and merging/synthesis of multiscale models and datasets. See Ajala & Persaud (2021) or Ajala & Persaud (2022) for a seismological application involving the estimation of surface (an)elastic deformation from earthquake aftershocks.
[Documentation]GridQuery (GQ) is a collection of command-line programs for multiscale and multidimensional data and model synthesis (merging in up to 3 dimensions) and retrofitting (adding, removing, or replacing topography and/or bathymetry; adding shallow geotechnical layering; adding small-scale heterogeneities using statistical models). It relies on the BLEND and GMT APIs. Check out the SSA meeting presentation by Ajala et al. (2025) for some details regarding development.
[Documentation]Unofficially modified version of the UCVM software developed and maintained by the Southern California Earthquake Center (Small et al. 2017). UCVM embodies a non-optimization-based framework for sampling the Earth model space (e.g., Ajala et al., 2022). This modified version extends its functionality to support complex model merging using the BLEND library and allows additional model retrofitting. Technical details about the changes from the original version can be found in Ajala & Persaud (2021).