version: 3 ################################################# # computational domian # ################################################# domain: min_max_dep: [-10, 10] # depth in km min_max_lat: [37.7, 42.3] # latitude in degree min_max_lon: [22.7, 27.3] # longitude in degree n_rtp: [10, 50, 50] # number of nodes in depth,latitude,longitude direction source: src_rec_file: OUTPUT_FILES/src_rec_file_forward.dat # source receiver file path swap_src_rec: 1 # swap source and receiver (1: yes, 0: no) model: init_model_path: ./test_model_init.h5 # path to initial model file # model_1d_name: dummy_model_1d_name # 1D model name used in teleseismic 2D solver (iasp91, ak135, user_defined is available), defined in include/1d_model.h parallel: # parameters for parallel computation n_sims: 1 # number of simultanoues runs ndiv_rtp: [1, 2, 2] # number of subdivision on each direction nproc_sub: 2 # number of processors for sweep parallelization use_gpu: false # 1 if use gpu (EXPERIMENTAL) output_setting: output_dir: ./OUTPUT_FILES/ # path to output director (default is ./OUTPUT_FILES/) output_source_field: false # output the calculated field of all sources 1 for yes; 0 for no; default: 1 output_model_dat: false # output model_parameters_inv_0000.dat or not. 1 for yes; 0 for no; default: 1 output_final_model: true # output merged final model or not. 1 for yes; 0 for no; default: 1 output_in_process: true # output model at each inv iteration or not. 1 for yes; 0 for no; default: 1 single_precision_output: false # output results in single precision or not. 1 for yes; 0 for no; default: 0 verbose_output_level: 0 # output internal parameters, if 0, only model parameters are out. Higher level, more internal parameters are output. default: 0 output_file_format: 0 ################################################# # inversion or forward modeling # ################################################# # run mode # 0 for forward simulation only, # 1 for inversion # 2 for earthquake relocation # 3 for inversion+earthquake relocation run_mode: 1 ################################################### # model update parameters setting # ################################################### model_update: # update model parameters (when run_mode : 1 and 3) max_iterations: 3 # maximum number of inversion iterations optim_method: 1 # optimization method. 0 : grad_descent, 1 : halve-stepping, 2 : lbfgs (EXPERIMENTAL) # common parameters for all optim methods step_length: 0.01 # step length of model perturbation at each iteration. 0.01 means maximum 1% perturbation for each iteration. # parameters for optim_method 0 (grad_descent) optim_method_0: step_length_decay: 0.9 # if objective function increase, step size -> step length * step_length_decay. default: 0.9 step_length_sc: 0.001 # ... # use it also ? # parameters for optim_method 1 (halve-stepping) or 2 (lbfgs) optim_method_1_2: max_sub_iterations: 10 # maximum number of each sub-iteration regularization_weight: 100 # weight value for regularization (lbfgs mode only) # smoothing smoothing: smooth_method: 0 # 0: multiparametrization, 1: laplacian smoothing (EXPERIMENTAL) l_smooth_rtp: [1, 1, 1] # smoothing coefficients for laplacian smoothing # parameters for smooth method 0 (multigrid model parametrization) n_inversion_grid: 5 # number of inversion grid sets # inversion grid type type_invgrid_dep: 1 # 0: uniform inversion grid, 1: flexible grid type_invgrid_lat: 0 # 0: uniform inversion grid, 1: flexible grid type_invgrid_lon: 0 # 0: uniform inversion grid, 1: flexible grid # settings for uniform inversion grid (if type_*_inv : 0) n_inv_dep_lat_lon: [5, 10, 10] # number of the base inversion grid points (ignored if type_*_inv : 1) min_max_dep_inv: [-10, 10] # depth in km (Radius of the earth is defined in config.h/R_earth) (ignored if type_dep_inv : 1) min_max_lat_inv: [37.7, 42.3] # latitude in degree min_max_lon_inv: [22.7, 27.3] # longitude in degree # settings for flexible inversion grid (if type_*_inv : 1) dep_inv: [-10.0, -7.5, -5.0, -2.5, 0.0, 2.5, 5.0, 7.5, 10.0] # depth in km (Radius of the earth is defined in config.h/R_earth) lat_inv: [0.0, 1.0] # latitude in degree (ignored if type_lat_inv : 0) lon_inv: [0.0, 1.0] # longitude in degree (ignored if type_lon_inv : 0) # path to station correction file sta_correction_file: dummy_sta_correction_file # station correction file path # -------------- using absolute traveltime data -------------- abs_time: use_abs_time: true # 'true' for using absolute traveltime data to update model parameters; 'false' for not using (no need to set parameters in this section) residual_weight: [1.0, 3.0, 1.0, 0.1] # weight (wt) of residual. wt = residual_weight[2] for res < residual_weight[0]. wt = residual_weight[3] for res > residual_weight[1], and linear weight in between. distance_weight: [50.0, 150.0, 1.0, 0.1] # weight of epicenter distance. wt = distance_weight[2] for dis < distance_weight[0]. wt = distance_weight[3] for dis > distance_weight[1], and linear weight in between. # -------------- using common source differential traveltime data -------------- cs_dif_time: use_cs_time: true # 'true' for using common source differential traveltime data to update model parameters; 'false' for not using (no need to set parameters in this section) residual_weight: [1.0, 3.0, 1.0, 0.1] # weight (wt) of residual. azimuthal_weight: [15.0, 30.0, 1.0, 0.1] # weight of azimuth between two stations. # -------------- using common receiver differential traveltime data -------------- cr_dif_time: use_cr_time: true # 'true' for using common receiver differential traveltime data to update model parameters; 'false' for not using (no need to set parameters in this section) residual_weight: [1.0, 3.0, 1.0, 0.1] # weight (wt) of residual. azimuthal_weight: [15.0, 30.0, 1.0, 0.1] # weight of azimuth between two earthquakes. # -------------- global weight of different types of data (to balance the weight of different data) -------------- global_weight: balance_data_weight: true # yes: over the total weight of the each type of the data. the obj of different data means the average data misfit; no: use original weight (below weight for each type of data needs to be set) abs_time_weight: 1.0 # weight of absolute traveltime data, default: 1.0 cs_dif_time_local_weight: 1.0 # weight of common source differential traveltime data, default: 1.0 cr_dif_time_local_weight: 1.0 # weight of common receiver differential traveltime data, default: 1.0 teleseismic_weight: 1.0 # weight of teleseismic data, default: 1.0 (exclude in this version) # -------------- inversion parameters (exclude in this version) -------------- update_slowness: true # update slowness (velocity) or not. default: true update_azi_ani: false # update azimuthal anisotropy (xi, eta) or not. default: false update_rad_ani: false # update radial anisotropy (in future) or not. default: false # -------------- for teleseismic inversion (exclude in this version) -------------- depth_taper: [-200.0, -100.0] # kernel weight : depth. --> 0: -inf ~ taper[0]; 0 ~ 1 : taper[0] ~ taper[1]; 1 : taper[1] ~ inf ################################################# # relocation parameters setting # ################################################# relocation: # update earthquake hypocenter and origin time (when run_mode : 1) # relocation_strategy step_length: 0.01 # step length of relocation perturbation at each iteration. 0.01 means maximum 1% perturbation for each iteration. step_length_decay: 0.9 # if objective function increase, step size -> step length * step_length_decay. default: 0.9 rescaling_dep_lat_lon_ortime: [10.0, 10.0, 10.0, 1.0] # The perturbation is related to . Unit: km,km,km,second max_change_dep_lat_lon_ortime: [5.0, 5.0, 5.0, 0.5] # the change of dep,lat,lon,ortime do not exceed max_change. Unit: km,km,km,second max_iterations: 100 # maximum number of iterations for relocation # more option for using different types of data is under development (following) # -------------- using absolute traveltime data -------------- abs_time: use_abs_time: yes # 'yes' for using absolute traveltime data to update model parameters; 'no' for not using (no need to set parameters in this section) residual_weight: [1.0, 3.0, 1.0, 0.1] # weight (wt) of residual. wt = residual_weight[2] for res < residual_weight[0]. wt = residual_weight[3] for res > residual_weight[1], and linear weight in between. distance_weight: [50.0, 150.0, 1.0, 0.1] # weight of epicenter distance. wt = distance_weight[2] for dis < distance_weight[0]. wt = distance_weight[3] for dis > distance_weight[1], and linear weight in between. # -------------- using common receiver differential traveltime data -------------- cr_dif_time: use_cr_time: true # 'yes' for using common receiver differential traveltime data to update model parameters; 'no' for not using (no need to set parameters in this section) residual_weight: [1.0, 3.0, 1.0, 0.1] # weight (wt) of residual. distance_weight: [10.0, 30.0, 1.0, 0.1] # weight of distance (km) between two earthquakes. #################################################################### # inversion strategy for tomography and relocation # #################################################################### inversion_strategy: # update model parameters and earthquake hypocenter iteratively (when run_mode : 3) inv_mode: 0 # 0 for update model parameters and relocation iteratively. (other options for future work) # for inv_mode : 0, parameters below are required inv_mode_0: # Fristly, do relocation; Subsequently, do relocation every N steps; Finally, do relocation relocation_first: true # yes: do relocation first; no: do not relocation first. default: yes relocation_first_iterations: 10 # maximum number of iterations for relocation in the beginning. default: 10 relocation_every_N_steps: 5 # subsequently, do relocation every N steps of updating model parameters. The iteration of relocation follows in Section relocation_final: true # yes: do relocation finally; no: do not relocation finally. default: yes relocation_final_iterations: 10 # maximum number of iterations for relocation in the beginning. default: 10 # --- parameters for core solver --------------------------------------------------------- # --- please do not change the following parameters unless you know what you are doing --- ######################################################################## # Scheme of Eikonal solver (fast sweeping method) # ######################################################################## calculation: convergence_tolerance: 0.0001 # threshold value for checking the convergence for each forward/adjoint run max_iterations: 500 # number of maximum iteration for each forward/adjoint run stencil_order: 3 # order of stencil, 1 or 3 stencil_type: 0 # 0: , 1: first-order upwind scheme (only sweep_type 0 is supported) sweep_type: 1 # 0: legacy, 1: cuthill-mckee with shm parallelization