def calculate_total_std(gsim_list, imts, vs30): std_total = {} std_inter = {} std_intra = {} for gsim in gsim_list: rctx = RuptureContext() # The calculator needs these inputs but they are not used # in the std calculation rctx.mag = 5 rctx.rake = 0 rctx.hypo_depth = 0 dctx = DistancesContext() dctx.rjb = np.copy(np.array([1])) # I do not care about the distance dctx.rrup = np.copy(np.array([1])) # I do not care about the distance sctx = SitesContext() sctx.vs30 = vs30 * np.ones_like(np.array([0])) for imt in imts: gm_table, [ gm_stddev_inter, gm_stddev_intra ] = (gsim.get_mean_and_stddevs( sctx, rctx, dctx, imt, [const.StdDev.INTER_EVENT, const.StdDev.INTRA_EVENT])) std_total[gsim, imt] = (np.sqrt(gm_stddev_inter[0]**2 + gm_stddev_intra[0]**2)) std_inter[gsim, imt] = gm_stddev_inter[0] std_intra[gsim, imt] = gm_stddev_intra[0] return (std_total, std_inter, std_intra)
def test_mag_greater_8pt5(self): gmpe = SadighEtAl1997() sctx = SitesContext() rctx = RuptureContext() dctx = DistancesContext() rctx.rake = 0.0 dctx.rrup = numpy.array([0., 1.]) sctx.vs30 = numpy.array([800., 800.]) rctx.mag = 9.0 mean_rock_9, _ = gmpe.get_mean_and_stddevs( sctx, rctx, dctx, PGA(), [StdDev.TOTAL] ) rctx.mag = 8.5 mean_rock_8pt5, _ = gmpe.get_mean_and_stddevs( sctx, rctx, dctx, PGA(), [StdDev.TOTAL] ) numpy.testing.assert_allclose(mean_rock_9, mean_rock_8pt5) sctx.vs30 = numpy.array([300., 300.]) rctx.mag = 9.0 mean_soil_9, _ = gmpe.get_mean_and_stddevs( sctx, rctx, dctx, PGA(), [StdDev.TOTAL] ) rctx.mag = 8.5 mean_soil_8pt5, _ = gmpe.get_mean_and_stddevs( sctx, rctx, dctx, PGA(), [StdDev.TOTAL] ) numpy.testing.assert_allclose(mean_soil_9, mean_soil_8pt5)
def test_mag_greater_8pt5(self): gmpe = SadighEtAl1997() sctx = SitesContext() rctx = RuptureContext() dctx = DistancesContext() rctx.rake = 0.0 dctx.rrup = numpy.array([0., 1.]) sctx.vs30 = numpy.array([800., 800.]) rctx.mag = 9.0 mean_rock_9, _ = gmpe.get_mean_and_stddevs(sctx, rctx, dctx, PGA(), [StdDev.TOTAL]) rctx.mag = 8.5 mean_rock_8pt5, _ = gmpe.get_mean_and_stddevs(sctx, rctx, dctx, PGA(), [StdDev.TOTAL]) numpy.testing.assert_allclose(mean_rock_9, mean_rock_8pt5) sctx.vs30 = numpy.array([300., 300.]) rctx.mag = 9.0 mean_soil_9, _ = gmpe.get_mean_and_stddevs(sctx, rctx, dctx, PGA(), [StdDev.TOTAL]) rctx.mag = 8.5 mean_soil_8pt5, _ = gmpe.get_mean_and_stddevs(sctx, rctx, dctx, PGA(), [StdDev.TOTAL]) numpy.testing.assert_allclose(mean_soil_9, mean_soil_8pt5)
def evaluate_model(site_params, rup_params, df, npts, azimuth, moveout, mod, imt): sx = SitesContext() rx = RuptureContext() dx = DistancesContext() # TODO: some site parameters can be pulled from the dataframe so we don't # have to use the defaults (vs30, azimuth, etc.) if not moveout: npts = df.shape[0] for param in site_params.keys(): setattr(sx, param, np.full(npts, site_params[param])) rx.__dict__.update(rup_params) rx.mag = df['EarthquakeMagnitude'].iloc[0] rx.hypo_depth = df['EarthquakeDepth'].iloc[0] if moveout: dx.rjb = np.linspace(0, df['JoynerBooreDistance'].max(), npts) dx.rrup = np.sqrt(dx.rjb**2 + df['EarthquakeDepth'].iloc[0]**2) dx.rhypo = dx.rrup dx.repi = dx.rjb else: dx.rjb = df['JoynerBooreDistance'] dx.rrup = df['RuptureDistance'] dx.rhypo = df['HypocentralDistance'] dx.repi = df['EpicentralDistance'] # TODO: some of these distances can be pulled from the dataframe dx.ry0 = dx.rjb dx.rx = np.full_like(dx.rjb, -1) dx.azimuth = np.full_like(npts, azimuth) dx.rcdpp = dx.rjb dx.rvolc = dx.rjb try: mean, sd = MODELS_DICT[mod]().get_mean_and_stddevs( sx, rx, dx, manage_imts(imt)[0], [StdDev.TOTAL]) mean = convert_units(mean, imt) if moveout: return mean, dx else: return mean, sd[0] except Exception: return
IMT = imt.PGA() rctx = RuptureContext() dctx = DistancesContext() sctx = SitesContext() sctx_rock = SitesContext() rctx.rake = 0.0 rctx.dip = 90.0 rctx.ztor = 7.13 rctx.mag = 3.0 #rctx.mag = np.linspace(0.1,5.) rctx.width = 10.0 rctx.hypo_depth = 8.0 #dctx.rrup = np.logspace(1,np.log10(200),100) dctx.rrup = np.logspace(np.log10(10),np.log10(10.0),1) # Assuming average ztor, get rjb: dctx.rjb = np.sqrt(dctx.rrup**2 - rctx.ztor**2) dctx.rhypo = dctx.rrup dctx.rx = dctx.rjb dctx.ry0 = dctx.rx sctx.vs30 = np.ones_like(dctx.rrup) * 760.0 sctx.vs30measured = np.full_like(dctx.rrup, False, dtype='bool') sctx.z1pt0 = np.ones_like(dctx.rrup) * 0.05 lmean_ask14, sd_ask14 = ASK14.get_mean_and_stddevs( sctx, rctx, dctx, IMT, [const.StdDev.TOTAL])
def build_gmpe_table(matrixMagsMin, matrixMagsMax, matrixMagsStep, matrixDistsMin, matrixDistsMax, matrixDistsStep, imt_filtering, limitIM, gsim_list, limit_max_mag, limit_min_mag): # Define the magnitude range of interest, 5.0 - 9.0 every 0.1 mags = np.arange(matrixMagsMin, matrixMagsMax, matrixMagsStep) # Define the distance range of interest, 0.0 - 300.0 every 1 km dists = np.arange(matrixDistsMin, matrixDistsMax, matrixDistsStep) # Define the Vs30 range of interest, 180.0 - 1000.0 every 1 m/s vs30s = np.arange(180.0, 181., 1.) gm_table = np.zeros([len(dists), len(mags), len(vs30s)]) stddevs = [const.StdDev.TOTAL] gsim_tables = [] for gsim in gsim_list: for i, mag in enumerate(mags): for j, vs30 in enumerate(vs30s): # The RuptureContext object holds all of the # rupture related attributes (e.g. mag, rake, ztor, hypo_depth) rctx = RuptureContext() rctx.mag = mag rctx.rake = 0.0 rctx.hypo_depth = 10 # The DistancesContext object holds all of the distance # calculations (e.g. rjb, rrup, rx, ry0) # OQ GMPEs are vectorised by distance - so this needs # to be an array dctx = DistancesContext() dctx.rjb = np.copy(dists) dctx.rrup = np.copy(dists) # dctx.rhypo = np.copy(dists) # The SitesContext object holds all of the site # attributes - also an array sctx = SitesContext() # The attributes of the site array must be of the # same size as the distances sctx.vs30 = vs30 * np.ones_like(dists) # GMPE produces 2 outputs, the means (well their # natural logarithm) and standard deviations gm_table[:, i, j], gm_stddevs = gsim.get_mean_and_stddevs( sctx, rctx, dctx, imt_filtering, stddevs) gm_table_exp = np.exp(gm_table) gsim_tables.append(gm_table_exp) if len(gsim_list) == 1: gm_table_final = gsim_tables[0] else: gm_table_final = np.maximum(gsim_tables[0], gsim_tables[1]) # These "if" exclude all ruptures above and below the limit magnitude if limit_max_mag < matrixMagsMax: indexMag = int((limit_max_mag - matrixMagsMin) / matrixMagsStep) list_mag_to_exclude = np.arange(indexMag+1, len(mags)) gm_table_final[:, list_mag_to_exclude, 0] = 0.001 if limit_min_mag > matrixMagsMin: indexMinMag = int((limit_min_mag - matrixMagsMin) / matrixMagsStep) list_min_mag_to_exclude = np.arange(0, indexMinMag) gm_table_final[:, list_min_mag_to_exclude, 0] = 0.001 gm_mask = gm_table_final >= limitIM GMPEmatrix = gm_mask[:, :, 0] return GMPEmatrix
def trim_multiple_events(st, origin, catalog, travel_time_df, pga_factor, pct_window_reject, gmpe, site_parameters, rupture_parameters): """ Uses a catalog (list of ScalarEvents) to handle cases where a trace might contain signals from multiple events. The catalog should contain events down to a low enough magnitude in relation to the events of interest. Overall, the algorithm is as follows: 1) For each earthquake in the catalog, get the P-wave travel time and estimated PGA at this station. 2) Compute the PGA (of the as-recorded horizontal channels). 3) Select the P-wave arrival times across all events for this record that are (a) within the signal window, and (b) the predicted PGA is greater than pga_factor times the PGA from step #1. 4) If any P-wave arrival times match the above criteria, then if any of the arrival times fall within in the first pct_window_reject*100% of the signal window, then reject the record. Otherwise, trim the record such that the end time does not include any of the arrivals selected in step #3. Args: st (StationStream): Stream of data. origin (ScalarEvent): ScalarEvent object associated with the StationStream. catalog (list): List of ScalarEvent objects. travel_time_df (DataFrame): A pandas DataFrame that contains the travel time information (obtained from gmprocess.waveform_processing.phase.create_travel_time_dataframe). The columns in the DataFrame are the station ids and the indices are the earthquake ids. pga_factor (float): A decimal factor used to determine whether the predicted PGA from an event arrival is significant enough that it should be considered for removal. pct_window_reject (float): A decimal from 0.0 to 1.0 used to determine if an arrival should be trimmed from the record, or if the entire record should be rejected. If the arrival falls within the first pct_window_reject * 100% of the signal window, then the entire record will be rejected. Otherwise, the record will be trimmed appropriately. gmpe (str): Short name of the GMPE to use. Must be defined in the modules file. site_parameters (dict): Dictionary of site parameters to input to the GMPE. rupture_parameters: Dictionary of rupture parameters to input to the GMPE. Returns: StationStream: Processed stream. """ if not st.passed: return st # Check that we know the signal split for each trace in the stream for tr in st: if not tr.hasParameter('signal_split'): return st signal_window_starttime = st[0].getParameter('signal_split')['split_time'] arrivals = travel_time_df[st[0].stats.network + '.' + st[0].stats.station] arrivals = arrivals.sort_values() # Filter by any arrival times that appear in the signal window arrivals = arrivals[ (arrivals > signal_window_starttime) & (arrivals < st[0].stats.endtime)] # Make sure we remove the arrival that corresponds to the event of interest if origin.id in arrivals.index: arrivals.drop(index=origin.id, inplace=True) if arrivals.empty: return st # Calculate the recorded PGA for this record stasum = StationSummary.from_stream(st, ['ROTD(50.0)'], ['PGA']) recorded_pga = stasum.get_pgm('PGA', 'ROTD(50.0)') # Load the GMPE model gmpe = load_model(gmpe) # Set site parameters sx = SitesContext() # Make sure that site parameter values are converted to numpy arrays site_parameters_copy = site_parameters.copy() for k, v in site_parameters_copy.items(): site_parameters_copy[k] = np.array([site_parameters_copy[k]]) sx.__dict__.update(site_parameters_copy) # Filter by arrivals that have significant expected PGA using GMPE is_significant = [] for eqid, arrival_time in arrivals.items(): event = next(event for event in catalog if event.id == eqid) # Set rupture parameters rx = RuptureContext() rx.__dict__.update(rupture_parameters) rx.mag = event.magnitude # TODO: distances should be calculated when we refactor to be # able to import distance calculations dx = DistancesContext() dx.repi = np.array([ gps2dist_azimuth( st[0].stats.coordinates.latitude, st[0].stats.coordinates.longitude, event.latitude, event.longitude)[0] / 1000]) dx.rjb = dx.repi dx.rhypo = np.sqrt(dx.repi**2 + event.depth_km**2) dx.rrup = dx.rhypo pga, sd = gmpe.get_mean_and_stddevs(sx, rx, dx, imt.PGA(), []) # Convert from ln(g) to %g predicted_pga = 100 * np.exp(pga[0]) if predicted_pga > (pga_factor * recorded_pga): is_significant.append(True) else: is_significant.append(False) significant_arrivals = arrivals[is_significant] if significant_arrivals.empty: return st # Check if any of the significant arrivals occur within the signal_length = st[0].stats.endtime - signal_window_starttime cutoff_time = signal_window_starttime + pct_window_reject * (signal_length) if (significant_arrivals < cutoff_time).any(): for tr in st: tr.fail('A significant arrival from another event occurs within ' 'the first %s percent of the signal window' % (100 * pct_window_reject)) # Otherwise, trim the stream at the first significant arrival else: for tr in st: signal_end = tr.getParameter('signal_end') signal_end['end_time'] = significant_arrivals[0] signal_end['method'] = ('Trimming before right another event') tr.setParameter('signal_end', signal_end) cut(st) return st
def signal_end(st, event_time, event_lon, event_lat, event_mag, method=None, vmin=None, floor=None, model=None, epsilon=2.0): """ Estimate end of signal by using a model of the 5-95% significant duration, and adding this value to the "signal_split" time. This probably only works well when the split is estimated with a p-wave picker since the velocity method often ends up with split times that are well before signal actually starts. Args: st (StationStream): Stream of data. event_time (UTCDateTime): Event origin time. event_mag (float): Event magnitude. event_lon (float): Event longitude. event_lat (float): Event latitude. method (str): Method for estimating signal end time. Either 'velocity' or 'model'. vmin (float): Velocity (km/s) for estimating end of signal. Only used if method="velocity". floor (float): Minimum duration (sec) applied along with vmin. model (str): Short name of duration model to use. Must be defined in the gmprocess/data/modules.yml file. epsilon (float): Number of standard deviations; if epsilon is 1.0, then the signal window duration is the mean Ds + 1 standard deviation. Only used for method="model". Returns: trace with stats dict updated to include a stats['processing_parameters']['signal_end'] dictionary. """ # Load openquake stuff if method="model" if method == "model": dmodel = load_model(model) # Set some "conservative" inputs (in that they will tend to give # larger durations). sctx = SitesContext() sctx.vs30 = np.array([180.0]) sctx.z1pt0 = np.array([0.51]) rctx = RuptureContext() rctx.mag = event_mag rctx.rake = -90.0 dur_imt = imt.from_string('RSD595') stddev_types = [const.StdDev.INTRA_EVENT] for tr in st: if not tr.hasParameter('signal_split'): continue if method == "velocity": if vmin is None: raise ValueError('Must specify vmin if method is "velocity".') if floor is None: raise ValueError('Must specify floor if method is "velocity".') epi_dist = gps2dist_azimuth( lat1=event_lat, lon1=event_lon, lat2=tr.stats['coordinates']['latitude'], lon2=tr.stats['coordinates']['longitude'])[0] / 1000.0 end_time = event_time + max(floor, epi_dist / vmin) elif method == "model": if model is None: raise ValueError('Must specify model if method is "model".') epi_dist = gps2dist_azimuth( lat1=event_lat, lon1=event_lon, lat2=tr.stats['coordinates']['latitude'], lon2=tr.stats['coordinates']['longitude'])[0] / 1000.0 dctx = DistancesContext() # Repi >= Rrup, so substitution here should be conservative # (leading to larger durations). dctx.rrup = np.array([epi_dist]) lnmu, lnstd = dmodel.get_mean_and_stddevs( sctx, rctx, dctx, dur_imt, stddev_types) duration = np.exp(lnmu + epsilon * lnstd[0]) # Get split time split_time = tr.getParameter('signal_split')['split_time'] end_time = split_time + float(duration) else: raise ValueError('method must be either "velocity" or "model".') # Update trace params end_params = { 'end_time': end_time, 'method': method, 'vsplit': vmin, 'floor': floor, 'model': model, 'epsilon': epsilon } tr.setParameter('signal_end', end_params) return st
eventids = [ 'usp000a1b0', 'usp000d6vk', 'usp000fg9t', 'usp000g9h6', 'us2000gge9', 'us1000etmq', 'us2000dwh6', 'nc30228270', 'nc72282711', 'ci14383980', 'ci14607652', 'usp0009eq0' ] # Calculate mean Arias intensity and the standard deviations. Trav_Ia_mean = [] interSD = [] intraSD = [] for event in eventids: partial_df = df.loc[df['USGS_eventID'] == event] sx.vs30 = np.array(partial_df['Vs30(m/s)']) dx.rrup = np.array(partial_df['rrup']) rx.mag = np.array(partial_df['magnitude'])[0] rx.rake = np.array(partial_df['rake_angle'])[0] Ia_mean, sd = trav2003.get_mean_and_stddevs(sx, rx, dx, imt, sd_types) Trav_Ia_mean.append(np.exp(Ia_mean)) interSD.append(sd[0]) intraSD.append(sd[1]) # Flatten lists. flat_Ia = [val for sublist in Trav_Ia_mean for val in sublist] flat_interSD = [val for sublist in interSD for val in sublist] flat_intraSD = [val for sublist in intraSD for val in sublist] # Calculate residuals. Ia_obs = np.array(df['Ia_arith(m/s)'])
def get_extent(rupture=None, config=None): """ Method to compute map extent from rupture. There are numerous methods for getting the extent: - It can be specified directly in the config file, - it can be hard coded for specific magnitude ranges in the config file, or - it can be based on the MultiGMPE for the event. All methods except for the first requires a rupture object. If no config is provided then a rupture is required and the extent is based on a generic set of active/stable. Args: rupture (Rupture): A ShakeMap Rupture instance. config (ConfigObj): ShakeMap config object. Returns: tuple: lonmin, lonmax, latmin, latmax rounded to the nearest arc-minute.. """ # ------------------------------------------------------------------------- # Check to see what parameters are specified in the extent config # ------------------------------------------------------------------------- spans = {} bounds = [] if config is not None: if 'extent' in config: if 'magnitude_spans' in config['extent']: if len(config['extent']['magnitude_spans']): if isinstance(config['extent']['magnitude_spans'], dict): spans = config['extent']['magnitude_spans'] if 'bounds' in config['extent']: if 'extent' in config['extent']['bounds']: if config['extent']['bounds']['extent'][0] != -999.0: bounds = config['extent']['bounds']['extent'] # ------------------------------------------------------------------------- # Simplest option: extent was specified in the config, use that and exit. # ------------------------------------------------------------------------- if len(bounds): xmin, ymin, xmax, ymax = bounds return (xmin, xmax, ymin, ymax) if not rupture or not isinstance(rupture, Rupture): raise TypeError('get_extent() requires a rupture object if the extent ' 'is not specified in the config object.') # Find the central point origin = rupture.getOrigin() if isinstance(rupture, (QuadRupture, EdgeRupture)): # For an extended rupture, it is the midpoint between the extent of the # verticies lats = rupture.lats lons = rupture.lons # Remove nans lons = lons[~np.isnan(lons)] lats = lats[~np.isnan(lats)] clat = 0.5 * (np.nanmax(lats) + np.nanmin(lats)) clon = 0.5 * (np.nanmax(lons) + np.nanmin(lons)) else: # For a point source, it is just the epicenter clat = origin.lat clon = origin.lon mag = origin.mag # ------------------------------------------------------------------------- # Second simplest option: spans are hardcoded based on magnitude # ------------------------------------------------------------------------- if len(spans): xmin = None xmax = None ymin = None ymax = None for spankey, span in spans.items(): if mag > span[0] and mag <= span[1]: ymin = clat - span[2] / 2 ymax = clat + span[2] / 2 xmin = clon - span[3] / 2 xmax = clon + span[3] / 2 break if xmin is not None: return (xmin, xmax, ymin, ymax) # ------------------------------------------------------------------------- # Use MultiGMPE to get spans # ------------------------------------------------------------------------- if config is not None: gmpe = MultiGMPE.from_config(config) gmice = get_object_from_config('gmice', 'modeling', config) else: # Put in some default values for conf config = { 'extent': { 'mmi': { 'threshold': 4.5, 'mindist': 100, 'maxdist': 1000 } } } # Generic GMPEs choices based only on active vs stable # as defaults... stable = is_stable(origin.lon, origin.lat) if not stable: ASK14 = AbrahamsonEtAl2014() CB14 = CampbellBozorgnia2014() CY14 = ChiouYoungs2014() gmpes = [ASK14, CB14, CY14] site_gmpes = None weights = [1 / 3.0, 1 / 3.0, 1 / 3.0] gmice = WGRW12() else: Fea96 = FrankelEtAl1996MwNSHMP2008() Tea97 = ToroEtAl1997MwNSHMP2008() Sea02 = SilvaEtAl2002MwNSHMP2008() C03 = Campbell2003MwNSHMP2008() TP05 = TavakoliPezeshk2005MwNSHMP2008() AB06p = AtkinsonBoore2006Modified2011() Pea11 = PezeshkEtAl2011() Atk08p = Atkinson2008prime() Sea01 = SomervilleEtAl2001NSHMP2008() gmpes = [ Fea96, Tea97, Sea02, C03, TP05, AB06p, Pea11, Atk08p, Sea01 ] site_gmpes = [AB06p] weights = [0.16, 0.0, 0.0, 0.17, 0.17, 0.3, 0.2, 0.0, 0.0] gmice = AK07() gmpe = MultiGMPE.from_list(gmpes, weights, default_gmpes_for_site=site_gmpes) min_mmi = config['extent']['mmi']['threshold'] default_imt = imt.SA(1.0) sd_types = [const.StdDev.TOTAL] # Distance context dx = DistancesContext() # This imposes minimum/ maximum distances of: # 80 and 800 km; could make this configurable d_min = config['extent']['mmi']['mindist'] d_max = config['extent']['mmi']['maxdist'] dx.rjb = np.logspace(np.log10(d_min), np.log10(d_max), 2000) # Details don't matter for this; assuming vertical surface rupturing fault # with epicenter at the surface. dx.rrup = dx.rjb dx.rhypo = dx.rjb dx.repi = dx.rjb dx.rx = np.zeros_like(dx.rjb) dx.ry0 = np.zeros_like(dx.rjb) dx.rvolc = np.zeros_like(dx.rjb) # Sites context sx = SitesContext() # Set to soft soil conditions sx.vs30 = np.full_like(dx.rjb, 180) sx = MultiGMPE.set_sites_depth_parameters(sx, gmpe) sx.vs30measured = np.full_like(sx.vs30, False, dtype=bool) sx = Sites._addDepthParameters(sx) sx.backarc = np.full_like(sx.vs30, False, dtype=bool) # Rupture context rx = RuptureContext() rx.mag = origin.mag rx.rake = 0.0 # From WC94... rx.width = 10**(-0.76 + 0.27 * rx.mag) rx.dip = 90.0 rx.ztor = origin.depth rx.hypo_depth = origin.depth gmpe_imt_mean, _ = gmpe.get_mean_and_stddevs(sx, rx, dx, default_imt, sd_types) # Convert to MMI gmpe_to_mmi, _ = gmice.getMIfromGM(gmpe_imt_mean, default_imt) # Minimum distance that exceeds threshold MMI? dists_exceed_mmi = dx.rjb[gmpe_to_mmi > min_mmi] if len(dists_exceed_mmi): mindist_km = np.max(dists_exceed_mmi) else: mindist_km = d_min # Get a projection proj = OrthographicProjection(clon - 4, clon + 4, clat + 4, clat - 4) if isinstance(rupture, (QuadRupture, EdgeRupture)): ruptx, rupty = proj(lons, lats) else: ruptx, rupty = proj(clon, clat) xmin = np.nanmin(ruptx) - mindist_km ymin = np.nanmin(rupty) - mindist_km xmax = np.nanmax(ruptx) + mindist_km ymax = np.nanmax(rupty) + mindist_km # Put a limit on range of aspect ratio dx = xmax - xmin dy = ymax - ymin ar = dy / dx if ar > 1.2: # Inflate x dx_target = dy / 1.2 ddx = dx_target - dx xmax = xmax + ddx / 2 xmin = xmin - ddx / 2 if ar < 0.83: # Inflate y dy_target = dx * 0.83 ddy = dy_target - dy ymax = ymax + ddy / 2 ymin = ymin - ddy / 2 lonmin, latmin = proj(np.array([xmin]), np.array([ymin]), reverse=True) lonmax, latmax = proj(np.array([xmax]), np.array([ymax]), reverse=True) # # Round coordinates to the nearest minute -- that should make the # output grid register with common grid resolutions (60c, 30c, # 15c, 7.5c) # logging.debug("Extent: %f, %f, %f, %f" % (lonmin, lonmax, latmin, latmax)) return _round_coord(lonmin[0]), _round_coord(lonmax[0]), \ _round_coord(latmin[0]), _round_coord(latmax[0])
def _get_extent_from_multigmpe(rupture, config=None): """ Use MultiGMPE to determine extent """ (clon, clat) = _rupture_center(rupture) origin = rupture.getOrigin() if config is not None: gmpe = MultiGMPE.from_config(config) gmice = get_object_from_config('gmice', 'modeling', config) if imt.SA in gmice.DEFINED_FOR_INTENSITY_MEASURE_TYPES: default_imt = imt.SA(1.0) elif imt.PGV in gmice.DEFINED_FOR_INTENSITY_MEASURE_TYPES: default_imt = imt.PGV() else: default_imt = imt.PGA() else: # Put in some default values for conf config = { 'extent': { 'mmi': { 'threshold': 4.5, 'mindist': 100, 'maxdist': 1000 } } } # Generic GMPEs choices based only on active vs stable # as defaults... stable = is_stable(origin.lon, origin.lat) if not stable: ASK14 = AbrahamsonEtAl2014() CB14 = CampbellBozorgnia2014() CY14 = ChiouYoungs2014() gmpes = [ASK14, CB14, CY14] site_gmpes = None weights = [1/3.0, 1/3.0, 1/3.0] gmice = WGRW12() else: Fea96 = FrankelEtAl1996MwNSHMP2008() Tea97 = ToroEtAl1997MwNSHMP2008() Sea02 = SilvaEtAl2002MwNSHMP2008() C03 = Campbell2003MwNSHMP2008() TP05 = TavakoliPezeshk2005MwNSHMP2008() AB06p = AtkinsonBoore2006Modified2011() Pea11 = PezeshkEtAl2011() Atk08p = Atkinson2008prime() Sea01 = SomervilleEtAl2001NSHMP2008() gmpes = [Fea96, Tea97, Sea02, C03, TP05, AB06p, Pea11, Atk08p, Sea01] site_gmpes = [AB06p] weights = [0.16, 0.0, 0.0, 0.17, 0.17, 0.3, 0.2, 0.0, 0.0] gmice = AK07() gmpe = MultiGMPE.from_list( gmpes, weights, default_gmpes_for_site=site_gmpes) default_imt = imt.SA(1.0) min_mmi = config['extent']['mmi']['threshold'] sd_types = [const.StdDev.TOTAL] # Distance context dx = DistancesContext() # This imposes minimum/ maximum distances of: # 80 and 800 km; could make this configurable d_min = config['extent']['mmi']['mindist'] d_max = config['extent']['mmi']['maxdist'] dx.rjb = np.logspace(np.log10(d_min), np.log10(d_max), 2000) # Details don't matter for this; assuming vertical surface rupturing fault # with epicenter at the surface. dx.rrup = dx.rjb dx.rhypo = dx.rjb dx.repi = dx.rjb dx.rx = np.zeros_like(dx.rjb) dx.ry0 = np.zeros_like(dx.rjb) dx.rvolc = np.zeros_like(dx.rjb) # Sites context sx = SitesContext() # Set to soft soil conditions sx.vs30 = np.full_like(dx.rjb, 180) sx = MultiGMPE.set_sites_depth_parameters(sx, gmpe) sx.vs30measured = np.full_like(sx.vs30, False, dtype=bool) sx = Sites._addDepthParameters(sx) sx.backarc = np.full_like(sx.vs30, False, dtype=bool) # Rupture context rx = RuptureContext() rx.mag = origin.mag rx.rake = 0.0 # From WC94... rx.width = 10**(-0.76 + 0.27*rx.mag) rx.dip = 90.0 rx.ztor = origin.depth rx.hypo_depth = origin.depth gmpe_imt_mean, _ = gmpe.get_mean_and_stddevs( sx, rx, dx, default_imt, sd_types) # Convert to MMI gmpe_to_mmi, _ = gmice.getMIfromGM(gmpe_imt_mean, default_imt) # Minimum distance that exceeds threshold MMI? dists_exceed_mmi = dx.rjb[gmpe_to_mmi > min_mmi] if len(dists_exceed_mmi): mindist_km = np.max(dists_exceed_mmi) else: mindist_km = d_min # Get a projection proj = OrthographicProjection(clon - 4, clon + 4, clat + 4, clat - 4) if isinstance(rupture, (QuadRupture, EdgeRupture)): ruptx, rupty = proj( rupture.lons[~np.isnan(rupture.lons)], rupture.lats[~np.isnan(rupture.lats)] ) else: ruptx, rupty = proj(clon, clat) xmin = np.nanmin(ruptx) - mindist_km ymin = np.nanmin(rupty) - mindist_km xmax = np.nanmax(ruptx) + mindist_km ymax = np.nanmax(rupty) + mindist_km # Put a limit on range of aspect ratio dx = xmax - xmin dy = ymax - ymin ar = dy / dx if ar > 1.2: # Inflate x dx_target = dy / 1.2 ddx = dx_target - dx xmax = xmax + ddx / 2 xmin = xmin - ddx / 2 if ar < 0.83: # Inflate y dy_target = dx * 0.83 ddy = dy_target - dy ymax = ymax + ddy / 2 ymin = ymin - ddy / 2 lonmin, latmin = proj(np.array([xmin]), np.array([ymin]), reverse=True) lonmax, latmax = proj(np.array([xmax]), np.array([ymax]), reverse=True) # # Round coordinates to the nearest minute -- that should make the # output grid register with common grid resolutions (60c, 30c, # 15c, 7.5c) # logging.debug("Extent: %f, %f, %f, %f" % (lonmin, lonmax, latmin, latmax)) return _round_coord(lonmin[0]), _round_coord(lonmax[0]), \ _round_coord(latmin[0]), _round_coord(latmax[0])
def test_scr_rlme(): old_gmpe = set_gmpe('stable_continental_nshmp2014_rlme') spec_file = pkg_resources.resource_filename( 'scenarios', os.path.join('data', 'configspec.conf')) validator = get_custom_validator() config = ConfigObj(os.path.join(os.path.expanduser('~'), 'scenarios.conf'), configspec=spec_file) tmp = pkg_resources.resource_filename( 'scenarios', os.path.join('..', 'data', 'gmpe_sets.conf')) config.merge(ConfigObj(tmp, configspec=spec_file)) tmp = pkg_resources.resource_filename( 'scenarios', os.path.join('..', 'data', 'modules.conf')) config.merge(ConfigObj(tmp, configspec=spec_file)) results = config.validate(validator) if results != True: config_error(config, results) # MultiGMPE from config config = config.dict() gmpe = MultiGMPE.from_config(config) # Input stuff IMT = imt.SA(1.0) rctx = RuptureContext() dctx = DistancesContext() sctx = SitesContext() rctx.rake = 0.0 rctx.dip = 90.0 rctx.ztor = 0.0 rctx.mag = 8.0 rctx.width = 10.0 rctx.hypo_depth = 8.0 dctx.rjb = np.logspace(1, np.log10(800), 100) dctx.rrup = dctx.rjb dctx.rhypo = dctx.rjb dctx.rx = dctx.rjb dctx.ry0 = dctx.rjb sctx.vs30 = np.ones_like(dctx.rjb) * 275.0 sctx.vs30measured = np.full_like(dctx.rjb, False, dtype='bool') sctx = MultiGMPE.set_sites_depth_parameters(sctx, gmpe) # Evaluate conf_lmean, dummy = gmpe.get_mean_and_stddevs(sctx, rctx, dctx, IMT, [const.StdDev.TOTAL]) target_lmean = np.array([ 0.10556736, 0.0839267, 0.06189444, 0.03945984, 0.01661264, -0.006657, -0.03035844, -0.05450058, -0.07909179, -0.10413995, -0.1296524, -0.15563655, -0.1821091, -0.20909381, -0.23661405, -0.26469259, -0.29335086, -0.32257956, -0.35232905, -0.38254639, -0.41317807, -0.44417017, -0.47549552, -0.5071888, -0.53929293, -0.57185042, -0.60490345, -0.63848027, -0.67255251, -0.70707712, -0.74201096, -0.77731091, -0.81293906, -0.84889737, -0.88520644, -0.92188724, -0.95899471, -0.99699613, -1.03583184, -1.07530664, -1.11531737, -1.15576129, -1.19653696, -1.23757689, -1.2772327, -1.2915098, -1.30576498, -1.32001713, -1.33429606, -1.3486727, -1.36322545, -1.37803346, -1.39317668, -1.40677752, -1.42081409, -1.43538898, -1.45056417, -1.46640223, -1.48327111, -1.50656497, -1.53368548, -1.56645985, -1.59991327, -1.63399401, -1.66867278, -1.7039438, -1.73980246, -1.77624473, -1.81326727, -1.85087166, -1.889066, -1.92784814, -1.96721442, -2.0071855, -2.04779304, -2.08909259, -2.13114448, -2.17401045, -2.21775376, -2.26243406, -2.30808979, -2.35475487, -2.40246494, -2.4512575, -2.50117075, -2.55223495, -2.60447754, -2.65792811, -2.71261851, -2.61732716, -2.67007323, -2.72399057, -2.77918054, -2.83574666, -2.89379416, -2.95340501, -3.01462691, -3.07750731, -3.14209631, -3.20844679 ]) np.testing.assert_allclose(conf_lmean, target_lmean, atol=1e-6) # Redo for 3 sec so some GMPEs are filtered out IMT = imt.SA(3.0) gmpe = MultiGMPE.from_config(config, filter_imt=IMT) conf_lmean, dummy = gmpe.get_mean_and_stddevs(sctx, rctx, dctx, IMT, [const.StdDev.TOTAL]) target_lmean = np.array([ -1.26636973, -1.289514, -1.31300386, -1.33683936, -1.36102084, -1.38554902, -1.41042497, -1.43565015, -1.46122642, -1.48715602, -1.51344154, -1.54008586, -1.56709215, -1.59446375, -1.62220409, -1.65031664, -1.6788048, -1.70767178, -1.7369205, -1.76655351, -1.79657287, -1.82698005, -1.85777587, -1.88896039, -1.92053288, -1.95249175, -1.98483453, -2.01755788, -2.05065755, -2.08412844, -2.11796463, -2.15215943, -2.18670547, -2.22159473, -2.25681869, -2.29236835, -2.32823441, -2.36453464, -2.40140834, -2.43883442, -2.47679132, -2.51525752, -2.55421156, -2.59363211, -2.63112832, -2.63336521, -2.63582817, -2.6385319, -2.64147962, -2.64466761, -2.64809268, -2.65175214, -2.6556438, -2.65976592, -2.66411721, -2.66869673, -2.67350386, -2.67853821, -2.68413311, -2.69604497, -2.7124745, -2.73590549, -2.75964098, -2.78367044, -2.80798539, -2.8325853, -2.85746998, -2.88263948, -2.90809408, -2.93383429, -2.95986073, -2.98617306, -3.01275705, -3.03961495, -3.06675608, -3.09419043, -3.12192861, -3.14998191, -3.17836228, -3.20708239, -3.23615561, -3.26559604, -3.29541858, -3.32563888, -3.35627343, -3.38733956, -3.41885548, -3.4508403, -3.48331409, -3.56476842, -3.59987076, -3.63573296, -3.67238872, -3.70987332, -3.74822369, -3.78747847, -3.82767809, -3.86886488, -3.91108308, -3.95437899 ]) np.testing.assert_allclose(conf_lmean, target_lmean, atol=1e-6) # Clean up set_gmpe(old_gmpe)
def signal_end(st, event_time, event_lon, event_lat, event_mag, method=None, vmin=None, floor=None, model=None, epsilon=2.0): """ Estimate end of signal by using a model of the 5-95% significant duration, and adding this value to the "signal_split" time. This probably only works well when the split is estimated with a p-wave picker since the velocity method often ends up with split times that are well before signal actually starts. Args: st (StationStream): Stream of data. event_time (UTCDateTime): Event origin time. event_mag (float): Event magnitude. event_lon (float): Event longitude. event_lat (float): Event latitude. method (str): Method for estimating signal end time. Either 'velocity' or 'model'. vmin (float): Velocity (km/s) for estimating end of signal. Only used if method="velocity". floor (float): Minimum duration (sec) applied along with vmin. model (str): Short name of duration model to use. Must be defined in the gmprocess/data/modules.yml file. epsilon (float): Number of standard deviations; if epsilon is 1.0, then the signal window duration is the mean Ds + 1 standard deviation. Only used for method="model". Returns: trace with stats dict updated to include a stats['processing_parameters']['signal_end'] dictionary. """ # Load openquake stuff if method="model" if method == "model": mod_file = pkg_resources.resource_filename( 'gmprocess', os.path.join('data', 'modules.yml')) with open(mod_file, 'r') as f: mods = yaml.load(f) # Import module cname, mpath = mods['modules'][model] dmodel = getattr(import_module(mpath), cname)() # Set some "conservative" inputs (in that they will tend to give # larger durations). sctx = SitesContext() sctx.vs30 = np.array([180.0]) sctx.z1pt0 = np.array([0.51]) rctx = RuptureContext() rctx.mag = event_mag rctx.rake = -90.0 dur_imt = imt.from_string('RSD595') stddev_types = [const.StdDev.INTRA_EVENT] for tr in st: if not tr.hasParameter('signal_split'): continue if method == "velocity": if vmin is None: raise ValueError('Must specify vmin if method is "velocity".') if floor is None: raise ValueError('Must specify floor if method is "velocity".') epi_dist = gps2dist_azimuth( lat1=event_lat, lon1=event_lon, lat2=tr.stats['coordinates']['latitude'], lon2=tr.stats['coordinates']['longitude'])[0] / 1000.0 end_time = event_time + max(floor, epi_dist / vmin) elif method == "model": if model is None: raise ValueError('Must specify model if method is "model".') epi_dist = gps2dist_azimuth( lat1=event_lat, lon1=event_lon, lat2=tr.stats['coordinates']['latitude'], lon2=tr.stats['coordinates']['longitude'])[0] / 1000.0 dctx = DistancesContext() # Repi >= Rrup, so substitution here should be conservative # (leading to larger durations). dctx.rrup = np.array([epi_dist]) lnmu, lnstd = dmodel.get_mean_and_stddevs( sctx, rctx, dctx, dur_imt, stddev_types) duration = np.exp(lnmu + epsilon * lnstd[0]) # Get split time split_time = tr.getParameter('signal_split')['split_time'] end_time = split_time + float(duration) else: raise ValueError('method must be either "velocity" or "model".') # Update trace params end_params = { 'end_time': end_time, 'method': method, 'vsplit': vmin, 'floor': floor, 'model': model, 'epsilon': epsilon } tr.setParameter('signal_end', end_params) return st
median_bssa14 = np.array([]) sd_zhao2006 = np.array([]) sd_travasarou = np.array([]) sd_bssa14 = np.array([]) ## Run per recording: for recording_i in range(len(station)): ## Make the rupture and distance contexts: i_rctx = RuptureContext() i_dctx = DistancesContext() i_sctx = SitesContext() # Zhao & Travasarou wants rrup, but dont' have that - so set to rhypo; # BSSA14 wants rjb but don't have it, so set to repi: i_dctx.rrup = rhypo[recording_i] i_dctx.rjb = repi[recording_i] ## Site: i_sctx.vs30 = np.array([vs30_data[recording_i]]) ## Rupture - USE THE PGD MAGNTIUDE! i_rctx.rake = rake[recording_i] i_rctx.mag = mw_pgd[recording_i] i_rctx.hypo_depth = hypodepth[recording_i] ## Get thje Zhao predictions (in g), Travasarou (unitless), and BSSA (cm/s) i_median_zhao2006, i_sd_zhao2006 = zhao2006.get_mean_and_stddevs( i_sctx, i_rctx, i_dctx, imt_pga, [const.StdDev.TOTAL]) i_median_travasarou, i_sd_travasarou = travasarou.get_mean_and_stddevs( i_sctx, i_rctx, i_dctx, imt_arias, [const.StdDev.TOTAL])