1 Commits

Author SHA1 Message Date
a4b4a552fe Update src/seismic_hazard_forecasting.py 2025-08-19 12:54:50 +02:00

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@@ -88,7 +88,9 @@ def main(catalog_file, mc_file, pdf_file, m_file, m_select, mag_label, mc, m_max
else:
logger.setLevel(logging.INFO)
exclude_low_fxy = True # skip low probability areas of the map
# temporary hard-coded configuration
# exclude_low_fxy = False
exclude_low_fxy = True
thresh_fxy = 1e-3 # minimum fxy value (location PDF) needed to do PGA estimation (to skip low probability areas); also should scale according to number of grid points
# log user selections
@@ -123,6 +125,10 @@ verbose: {verbose}")
logger.info("No magnitude label of catalog specified, therefore try Mw by default")
mag_label = 'Mw'
# if cat_label == None:
# print("No magnitude label of catalog specified, therefore try 'Catalog' by default")
# cat_label='Catalog'
time, mag, lat, lon, depth = read_mat_cat(catalog_file, mag_label=mag_label, catalog_label='Catalog')
# check for null magnitude values
@@ -252,7 +258,7 @@ verbose: {verbose}")
# %% compute KDE and extract PDF
start = timer()
if xy_win_method:
if xy_win_method == "TW":
logger.info("Time weighting function selected")
x_weights = np.linspace(0, 15, len(t_windowed))
@@ -313,7 +319,7 @@ verbose: {verbose}")
# run activity rate modeling
lambdas = [None]
if custom_rate != None and forecast_select and not rate_select:
if custom_rate != None and forecast_select:
logger.info(f"Using activity rate specified by user: {custom_rate} per {time_unit}")
lambdas = np.array([custom_rate], dtype='d')
lambdas_perc = np.array([1], dtype='d')
@@ -448,24 +454,20 @@ verbose: {verbose}")
start = timer()
use_pp = False
use_pp = True
if use_pp: # use dask parallel computing
pbar = ProgressBar()
pbar.register()
# iter = range(0,len(distances))
iter = indices
iml_grid_raw = [] # raw ground motion grids
for imt in products:
logger.info(f"Estimating {imt}")
if imt == "PGV":
IMT_max = 200 # search interval max for velocity (cm/s)
else:
IMT_max = 2.0 # search interval max for acceleration (g)
imls = [dask.delayed(compute_IMT_exceedance)(rx_lat[i], rx_lon[i], distances[i].flatten(), fr, p, lambdas,
forecast_len, lambdas_perc, m_range, m_pdf, m_cdf, model,
log_level=logging.DEBUG, imt=imt, IMT_min=0.0, IMT_max=IMT_max, rx_label=i,
log_level=logging.DEBUG, imt=imt, IMT_min=0.0, IMT_max=2.0, rx_label=i,
rtol=0.1, use_cython=True) for i in iter]
iml = dask.compute(*imls)
iml_grid_raw.append(list(iml))
@@ -474,17 +476,11 @@ verbose: {verbose}")
iml_grid_raw = []
iter = indices
for imt in products:
if imt == "PGV":
IMT_max = 200 # search interval max for velocity (cm/s)
else:
IMT_max = 2.0 # search interval max for acceleration (g)
iml = []
for i in iter:
iml_i = compute_IMT_exceedance(rx_lat[i], rx_lon[i], distances[i].flatten(), fr, p, lambdas, forecast_len,
lambdas_perc, m_range, m_pdf, m_cdf, model, imt=imt, IMT_min = 0.0,
IMT_max = IMT_max, rx_label = i, rtol = 0.1, use_cython=True)
IMT_max = 2.0, rx_label = i, rtol = 0.1, use_cython=True)
iml.append(iml_i)
logger.info(f"Estimated {imt} at rx {i} is {iml_i}")
iml_grid_raw.append(iml)
@@ -519,20 +515,17 @@ verbose: {verbose}")
dtype=np.float64) # this reduces values to 8 decimal places
iml_grid_tmp = np.nan_to_num(iml_grid[j]) # change nans to zeroes
# upscale the grid, trim, and interpolate if there are at least 10 grid values with range greater than 0.1
if np.count_nonzero(iml_grid_tmp) >= 10 and vmax-vmin > 0.1:
# upscale the grid
up_factor = 4
iml_grid_hd = resize(iml_grid_tmp, (up_factor * len(iml_grid_tmp), up_factor * len(iml_grid_tmp)),
mode='reflect', anti_aliasing=False)
trim_thresh = vmin
iml_grid_hd[iml_grid_hd < trim_thresh] = np.nan
else:
iml_grid_hd = iml_grid_tmp
iml_grid_hd[iml_grid_hd == 0.0] = np.nan # change zeroes back to nan
#vmin_hd = min(x for x in iml_grid_hd.flatten() if not isnan(x))
# trim edges so the grid is not so blocky
vmin_hd = min(x for x in iml_grid_hd.flatten() if not isnan(x))
vmax_hd = max(x for x in iml_grid_hd.flatten() if not isnan(x))
trim_thresh = vmin
iml_grid_hd[iml_grid_hd < trim_thresh] = np.nan
# generate image overlay
north, south = lat.max(), lat.min() # Latitude range
@@ -545,7 +538,7 @@ verbose: {verbose}")
cmap_name = 'YlOrRd'
cmap = plt.get_cmap(cmap_name)
fig, ax = plt.subplots(figsize=(6, 6))
ax.imshow(iml_grid_hd, origin='lower', cmap=cmap, vmin=vmin, vmax=vmax, interpolation='bilinear')
ax.imshow(iml_grid_hd, origin='lower', cmap=cmap, vmin=vmin, vmax=vmax)
ax.axis('off')
# Save the figure