TomoATT/examples/realcase1_regional_tomography_California/README.md

Real case of regional tomography in central California near Parkfield

This is a real case to invert traveltimes for velocity heterogeneity and azimuthal anisotropy in central California near Parkfield

Reference:

[1] J. Chen, G. Chen, M. Nagaso, and P. Tong, Adjoint-state traveltime tomography for azimuthally anisotropic media in spherical coordinates. Geophys. J. Int., 234 (2023), pp. 712-736. https://doi.org/10.1093/gji/ggad093

[2] J. Chen, M. Nagaso, M. Xu, and P. Tong, TomoATT: An open-source package for Eikonal equation-based adjoint-state traveltime tomography for seismic velocity and azimuthal anisotropy, submitted. https://doi.org/10.48550/arXiv.2412.00031

Python modules are required to initiate the inversion and to plot final results:

• h5py
• PyTomoAT
• Pygmt
• gmt

Run this example:

1. Run bash script bash run_this_example.sh to execute the test.

2. After inversion, run plot_output.py to plot the results.

The imaging results: