def _download_crandall(self):
"""download waveform/station info for dataset."""
bank = WaveBank(self.waveform_path)
domain = CircularDomain(
self.latitude,
self.longitude,
minradius=0,
maxradius=kilometers2degrees(self.max_dist),
)
cat = obspy.read_events(str(self.source_path / "events.xml"))
df = events_to_df(cat)
for _, row in df.iterrows():
starttime = row.time - self.time_before
endtime = row.time + self.time_after
restrictions = Restrictions(
starttime=UTC(starttime),
endtime=UTC(endtime),
minimum_length=0.90,
minimum_interstation_distance_in_m=100,
channel_priorities=["HH[ZNE]", "BH[ZNE]"],
location_priorities=["", "00", "01", "--"],
)
kwargs = dict(
domain=domain,
restrictions=restrictions,
mseed_storage=str(self.waveform_path),
stationxml_storage=str(self.station_path),
)
MassDownloader(providers=[self._download_client]).download(
**kwargs)
# ensure data have actually been downloaded
bank.update_index()
assert not bank.read_index(starttime=starttime,
endtime=endtime).empty
class WavebankWrapper(AnxcorDatabase):
def __init__(self, directory):
super().__init__()
self.bank = WaveBank(
directory, name_structure='{network}.{station}.{channel}.{time}')
self.bank.update_index()
def get_waveforms(self, **kwargs):
stream = self.bank.get_waveforms(**kwargs)
traces = []
for trace in stream:
data = trace.data[:-1]
if isinstance(data, np.ma.MaskedArray):
data = np.ma.filled(data, fill_value=np.nan)
header = {
'delta': trace.stats.delta,
'station': trace.stats.station,
'starttime': trace.stats.starttime,
'channel': trace.stats.channel,
'network': trace.stats.network
}
traces.append(Trace(data, header=header))
return Stream(traces=traces)
def get_stations(self):
df = self.bank.get_availability_df()
uptime = self.bank.get_uptime_df()
def create_seed(row):
network = row['network']
station = row['station']
return network + '.' + station
df['seed'] = df.apply(lambda row: create_seed(row), axis=1)
unique_stations = df['seed'].unique().tolist()
return unique_stations
def continuous_sbank(self, download_data):
""" return an sbank pointed at the temp_dir_path """
sb = WaveBank(download_data)
sb.update_index()
return sb