Perform seismic tomography
The entire inversion process consists of three steps:
- perform 1-D model inversion to obtain a better initial model for subsequent relocation and model update;
- relocate earthquake in the obtained initial model;
- update model parameters and relocate earthquakes simultaneously;
Step 1. 1-D model inversion
Given the three input files
- Parameter file in YAML format
3_input_params/input_params_step1_1D_inv.yaml. - Initial model file in HDF5 format
2_models/model_1d_crust1.0_N61_121_61.h5. - Traveltime data file in TEXT format
1_src_rec_files/src_rec_file.dat.
users can perform inversion by
mpirun -n 8 TOMOATT -i 3_input_params/input_params_step1_1D_inv.yamlThe results are output to the folder OUTPUT_FILES/OUTPUT_FILES_step1_1D_inv.
- The updated model can be found as
OUTPUT_FILES/OUTPUT_FILES_step1_1D_inv/final_model.h5.
Step 2. earthquake relocation
Given the three input files
- Parameter file in YAML format
3_input_params/input_params_step2_reloc.yaml. - Initial model file in HDF5 format
OUTPUT_FILES/OUTPUT_FILES_step1_1D_inv/final_model.h5. - Traveltime data file in TEXT format
1_src_rec_files/src_rec_file.dat.
users can perform inversion by
mpirun -n 8 TOMOATT -i 3_input_params/input_params_step2_reloc.yamlThe results are output to the folder OUTPUT_FILES/OUTPUT_FILES_step2_reloc.
- The updated catalog can be found as
OUTPUT_FILES/OUTPUT_FILES_step2_reloc/src_rec_file_reloc_0030_obs.dat.
Step 3. 3-D model inversion
Given the three input files
- Parameter file in YAML format
3_input_params/OUTPUT_FILES_step3_inv_reloc.yaml. - Initial model file in HDF5 format
OUTPUT_FILES/OUTPUT_FILES_step1_1D_inv/final_model.h5. - Traveltime data file in TEXT format
OUTPUT_FILES/OUTPUT_FILES_step2_reloc/src_rec_file_reloc_0030_obs.dat.
users can perform inversion by
mpirun -n 8 TOMOATT -i 3_input_params/input_params_step3_inv_reloc.yamlThe results are output to the folder OUTPUT_FILES/OUTPUT_FILES_step3_inv_reloc.
- The updated model can be found as
OUTPUT_FILES/OUTPUT_FILES_step3_inv_reloc/final_model.h5.
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