31 lines
997 B
Markdown
31 lines
997 B
Markdown
|
# 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:
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|