207 lines
12 KiB
YAML
207 lines
12 KiB
YAML
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version: 2
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#################################################
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# computational domian #
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#################################################
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domain:
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min_max_dep: [-10, 10] # depth in km
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min_max_lat: [37.7, 42.3] # latitude in degree
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min_max_lon: [22.7, 27.3] # longitude in degree
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n_rtp: [10, 50, 50] # number of nodes in depth,latitude,longitude direction
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#################################################
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# traveltime data file path #
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#################################################
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source:
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src_rec_file: OUTPUT_FILES/src_rec_file_forward.dat ### source receiver file path
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swap_src_rec: true # swap source and receiver
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#################################################
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# initial model file path #
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#################################################
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model:
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init_model_path: ./test_model_init.h5 # path to initial model file
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#################################################
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# parallel computation settings #
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#################################################
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parallel: # parameters for parallel computation
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n_sims: 1 # number of simultanoues runs
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ndiv_rtp: [1, 2, 2] # number of subdivision on each direction
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nproc_sub: 2 # number of processors for sweep parallelization
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use_gpu: true # true if use gpu (EXPERIMENTAL)
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############################################
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# output file setting #
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############################################
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output_setting:
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output_dir: ./OUTPUT_FILES/ # path to output director (default is ./OUTPUT_FILES/)
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output_source_field: false # output the calculated field of all sources 1 for yes; 0 for no; default: 1
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output_model_dat: false # output model_parameters_inv_0000.dat or not. 1 for yes; 0 for no; default: 1
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output_final_model: true # output merged final model or not. 1 for yes; 0 for no; default: 1
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output_in_process: true # output model at each inv iteration or not. 1 for yes; 0 for no; default: 1
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single_precision_output: false # output results in single precision or not. 1 for yes; 0 for no; default: 0
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verbose_output_level: 0 # output internal parameters, if 0, only model parameters are out. Higher level, more internal parameters are output. default: 0
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output_file_format: 0 # in/output file format, if 0: HDF5, if 1: ASCII
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#################################################
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# inversion or forward modeling #
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#################################################
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# run mode
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# 0 for forward simulation only,
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# 1 for inversion
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# 2 for earthquake relocation
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# 3 for inversion+earthquake relocation
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run_mode: 1
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###################################################
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# model update parameters setting #
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###################################################
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model_update: # update model parameters (when run_mode : 1 and 3)
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max_iterations: 3 # maximum number of inversion iterations
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optim_method: 1 # optimization method. 0 : grad_descent, 1 : halve-stepping, 2 : lbfgs (EXPERIMENTAL)
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# common parameters for all optim methods
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step_length: 0.01 # step length of model perturbation at each iteration. 0.01 means maximum 1% perturbation for each iteration.
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# parameters for optim_method 0 (grad_descent)
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optim_method_0:
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step_length_decay: 0.9 # if objective function increase, step size -> step length * step_length_decay. default: 0.9
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step_length_sc: 0.001 # ... # use it also ?
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# parameters for optim_method 1 (halve-stepping) or 2 (lbfgs)
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optim_method_1_2:
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max_sub_iterations: 10 # maximum number of each sub-iteration
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regularization_weight: 100 # weight value for regularization (lbfgs mode only)
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# smoothing
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smoothing:
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smooth_method: 0 # 0: multiparametrization, 1: laplacian smoothing (EXPERIMENTAL)
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l_smooth_rtp: [1, 1, 1] # smoothing coefficients for laplacian smoothing
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# parameters for smooth method 0 (multigrid model parametrization)
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n_inversion_grid: 5 # number of inversion grid sets
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# inversion grid type
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type_invgrid_dep: 1 # 0: uniform inversion grid, 1: flexible grid
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type_invgrid_lat: 0 # 0: uniform inversion grid, 1: flexible grid
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type_invgrid_lon: 0 # 0: uniform inversion grid, 1: flexible grid
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# settings for uniform inversion grid (if type_*_inv : 0)
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n_inv_dep_lat_lon: [5, 10, 10] # number of the base inversion grid points (ignored if type_*_inv : 1)
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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)
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min_max_lat_inv: [37.7, 42.3] # latitude in degree
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min_max_lon_inv: [22.7, 27.3] # longitude in degree
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# settings for flexible inversion grid (if type_*_inv : 1)
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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)
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lat_inv: [0.0, 1.0] # latitude in degree (ignored if type_lat_inv : 0)
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lon_inv: [0.0, 1.0] # longitude in degree (ignored if type_lon_inv : 0)
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# path to station correction file
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use_sta_correction: false
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sta_correction_file: dummy_sta_correction_file # station correction file path
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# -------------- using absolute traveltime data --------------
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abs_time:
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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)
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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.
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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.
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# -------------- using common source differential traveltime data --------------
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cs_dif_time:
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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)
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residual_weight: [1.0, 3.0, 1.0, 0.1] # weight (wt) of residual.
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azimuthal_weight: [15.0, 30.0, 1.0, 0.1] # weight of azimuth between two stations.
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# -------------- using common receiver differential traveltime data --------------
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cr_dif_time:
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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)
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residual_weight: [1.0, 3.0, 1.0, 0.1] # weight (wt) of residual.
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azimuthal_weight: [15.0, 30.0, 1.0, 0.1] # weight of azimuth between two earthquakes.
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# -------------- global weight of different types of data (to balance the weight of different data) --------------
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global_weight:
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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)
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abs_time_weight: 1.0 # weight of absolute traveltime data, default: 1.0
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cs_dif_time_local_weight: 1.0 # weight of common source differential traveltime data, default: 1.0
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cr_dif_time_local_weight: 1.0 # weight of common receiver differential traveltime data, default: 1.0
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teleseismic_weight: 1.0 # weight of teleseismic data, default: 1.0 (exclude in this version)
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# -------------- inversion parameters (exclude in this version) --------------
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update_slowness : true # update slowness (velocity) or not. default: true
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update_azi_ani : false # update azimuthal anisotropy (xi, eta) or not. default: false
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update_rad_ani : false # update radial anisotropy (in future) or not. default: false
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# -------------- for teleseismic inversion (exclude in this version) --------------
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depth_taper : [-200.0, -100.0] # kernel weight : depth. --> 0: -inf ~ taper[0]; 0 ~ 1 : taper[0] ~ taper[1]; 1 : taper[1] ~ inf
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#################################################
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# relocation parameters setting #
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#################################################
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relocation: # update earthquake hypocenter and origin time (when run_mode : 1)
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# relocation_strategy
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step_length : 0.01 # step length of relocation perturbation at each iteration. 0.01 means maximum 1% perturbation for each iteration.
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step_length_decay : 0.9 # if objective function increase, step size -> step length * step_length_decay. default: 0.9
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rescaling_dep_lat_lon_ortime : [10.0, 10.0, 10.0, 1.0] # The perturbation is related to <rescaling_dep_lat_lon_ortime>. Unit: km,km,km,second
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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
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max_iterations : 100 # maximum number of iterations for relocation
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tol_gradient : 0.0001 # threshold value for checking the convergence for each iteration
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# params keeped for current version of relocation but may not be required
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ortime_local_search : true # true: do local search for origin time; false: do not do local search for origin time
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ref_ortime_change : 0.5 # reference value for origin time change (unit: second). If the change of origin time is larger than ref_ortime_change, do local search for origin time.
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step_length_ortime_rescale : 0.1 # step length for rescaling origin time
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# more option for using different types of data is under development (following)
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# -------------- using absolute traveltime data --------------
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abs_time:
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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)
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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.
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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.
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# -------------- using common receiver differential traveltime data --------------
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cr_dif_time:
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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)
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residual_weight : [1.0, 3.0, 1.0, 0.1] # weight (wt) of residual.
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azimuthal_weight : [10.0, 30.0, 1.0, 0.1] # weight of azimuth (deg.) between two earthquakes.
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####################################################################
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# inversion strategy for tomography and relocation #
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####################################################################
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inversion_strategy: # update model parameters and earthquake hypocenter iteratively (when run_mode : 3)
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inv_mode : 0 # 0 for update model parameters and relocation iteratively. (other options for future work)
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# for inv_mode : 0, parameters below are required
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inv_mode_0: # Fristly, do relocation; Subsequently, do relocation every N steps; Finally, do relocation
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relocation_first : true # true: do relocation first; false: do not relocation first. default: true
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relocation_first_iterations : 10 # maximum number of iterations for relocation in the beginning. default: 10
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relocation_every_N_steps : 5 # subsequently, do relocation every N steps of updating model parameters. The iteration of relocation follows <max_iterations> in Section <relocation>
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relocation_final : true # true: do relocation finally; false: do not relocation finally. default: true
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relocation_final_iterations : 10 # maximum number of iterations for relocation in the beginning. default: 10
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# --- parameters for core solver ---------------------------------------------------------
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# --- please do not change the following parameters unless you know what you are doing ---
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########################################################################
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# Scheme of Eikonal solver (fast sweeping method) #
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########################################################################
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calculation:
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convergence_tolerance: 0.0001 # threshold value for checking the convergence for each forward/adjoint run
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max_iterations: 500 # number of maximum iteration for each forward/adjoint run
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stencil_order: 3 # order of stencil, 1 or 3
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stencil_type: 0 # 0: , 1: first-order upwind scheme (only sweep_type 0 is supported)
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sweep_type: 1 # 0: legacy, 1: cuthill-mckee with shm parallelization
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