We are proud to announce the paper in collaboration with Keith J. Roberts, Alexandre Olender, Lucas Franceschini, Robert C. Kirby, Rafael S. Gioria, and Bruno S. Carmo has just been published in Geoscientific Model Development. This paper is a result of our research inside the STMI (Software Technologies for Modelling and Inversion), which is a project of the Research Centre for Greenhouse Gas Innovation (RCGI).
This paper introduces our open-source software spyro: a Firedrake-based wave propagation and full-waveform-inversion finite-element solver. Finite-element methods (FEMs) permit the use of more flexible unstructured meshes but are rarely used in full waveform inversions (FWIs), an iterative process that reconstructs velocity models of earth’s subsurface, due to computational and memory storage costs. To reduce those costs, novel software is presented in this research allowing the use of high-order mass-lumped FEMs on triangular meshes, together with a material-property mesh-adaptation performance-enhancing strategy, enabling its use in FWIs.
The paper can be accessed in: https://gmd.copernicus.org/