Dataset and Model Files for Full Waveform Inversion Seismic Earth Model WUS324

Dataset and Model Files for Full Waveform Inversion Seismic Earth Model WUS324

Arthur Rodgers

Geophysical Monitoring Program, Lawrence Livermore National Laboratory, Livermore CA 94551, USA; and

Department of Earth Sciences, Eidgenössische Technische Hochschule Zürich, Zürich, Switzerland

rodgers7@llnl.gov

10.5281/zenodo.11619519

Summary

This data set includes the metadata and model for the three-dimensional (3D) seismic Earth model WUS324 (Rodgers et al., 2024).  This model describes seismic wavespeeds, density and attenuation for the 3D volume spanning the surface to 400 km depth, latitudes from Mexico to Canada (28 to 52) and longitudes from the Pacific Ocean to the Great Plains (-132 to -100).  The metadata tabulates the earthquakes and seismic networks and stations used in the creation and validation of 3D seismic Earth model WUS324.

The WUS324 model is provided in NetCDF format (readable by for example, xarray, Hoyer & Hamman, 2017) and HDF5 format for viewing with ParaView (Ahrens et al., 2005) and interaction with Salvus (Afanasiev et al., 2019).

References

Afanasiev, M, C Boehm, M van Driel, L Krischer, M Rietmann, DA May, MG Knepley, and A Fichtner (2019). Modular and flexible spectral-element waveform modelling in two and three dimensions, Geophys. J. Int., 216(3), 1675–1692, doi: 10.1093/gji/ggy469

Ahrens, J., Geveci, B., & Law, C. (2005). Paraview: An end-user tool for large data visualization. The Visualization Handbook, 717(8). https://doi.org/10.1016/b978-012387582-2/50038-1

Hoyer, S., & Hamman, J. (2017). Xarray: N-D labeled arrays and datasets in Python. Journal of Open Research Software, 5(1). https://doi.org/10.5334/jors.148

Rodgers, A., C. Doody and A. Fichtner (2024). WUS324: Converged Full Waveform Inversion Improves Waveform Fits While Imaging Crustal and Upper Mantle Structure in the Western United States, manuscript in preparation.

Acknowledgements

This work was initiated under Laboratory Directed Research and Development project 20-ERD-008 at Lawrence Livermore National Laboratory (LLNL) and continued with support from the National Nuclear Security Administration Ground-based Nuclear Detonation Detection program.  AR is grateful to the Eidgenössische Technische Hochschule, Zürich for support as an Academic Guest and to LLNL for Professional Research and Teaching Leave.  This work was performed under the auspices of the U.S. Department of Energy by LLNL under Contract DE-AC52-07NA27344.  LLNL-MI-865269.

Files contained in this data set.

Auxiliary file for WUS324_16sec.h5, used to import model into Paraview.

WUS324 model in netCDF format following the metadata standards of the Incorporated Research Institutions for Seismology Earth Model Collaboratory