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examples/realcase1_regional_tomography_California/README.md

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+# 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:
+
+![](img/imaging_result.jpg)
+
+