def generateStationTestData(sta):
time_range = (UTCDateTime(TIME_RANGE[0]), UTCDateTime(TIME_RANGE[1]))
client = Client("IRIS")
inv = client.get_stations(network=NETWORK,
station=sta,
channel=CHANNEL,
starttime=time_range[0],
endtime=time_range[1],
level='channel')
print(inv)
traces = client.get_waveforms(network=NETWORK,
station=sta,
channel=CHANNEL,
location='*',
starttime=time_range[0],
endtime=time_range[1])
print(traces)
outfile = 'test_data_' + sta + '.h5'
asdf_out = pyasdf.ASDFDataSet(outfile, mode='w')
asdf_out.add_stationxml(inv)
asdf_out.add_waveforms(traces, TAG)
print("Saved data to " + outfile)
def queryByBBoxInterval(self, outputFileName, bbox, timeinterval, chan='*Z', bbpadding=2,
event_id=None, verbose=False):
""" Time interval is a tuple (starttime,endtime)
"""
assert len(timeinterval) == 2, "timeinterval must be a tuple of ascending timestamps. len=" + str(
len(timeinterval)) + " " + str(timeinterval)
query_ds = pyasdf.ASDFDataSet(outputFileName)
client = Client(self._client)
ref_inv = client.get_stations(network=self._network,
starttime=UTCDateTime(timeinterval[0]),
endtime=UTCDateTime(timeinterval[1]),
minlongitude=bbox[0] - bbpadding,
maxlongitude=bbox[1] + bbpadding,
minlatitude=bbox[2] - bbpadding,
maxlatitude=bbox[3] + bbpadding,
level='channel')
if verbose:
print(ref_inv)
ref_st = Stream()
# go through inventory and request timeseries data
for net in ref_inv:
for stn in net:
stime = UTCDateTime(timeinterval[0])
etime = UTCDateTime(timeinterval[1])
step = 3600*24*10
while stime + step < etime:
try:
ref_st = client.get_waveforms(network=net.code, station=stn.code,
channel=chan, location='*',
starttime=stime,
endtime=stime+step)
print ref_st
self.ref_stations.append(net.code + '.' + stn.code)
st_inv = ref_inv.select(station=stn.code, channel=chan)
query_ds.add_stationxml(st_inv)
for tr in ref_st:
query_ds.add_waveforms(tr, "reference_station")
except FDSNException:
print('Data not available from Reference Station: ' + stn.code)
# end try
stime += step
#wend
# end for
#tr.write(os.path.join(os.path.dirname(outputFileName), tr.id + ".MSEED"),
# format="MSEED") # Don't write miniseed
if verbose:
print("Wrote Reference Waveforms to ASDF file: " + outputFileName)
print('\nWaveform data query completed.')
metaOutputFileName = os.path.join(os.path.dirname(outputFileName),
'meta.%s.xml'%(os.path.basename(outputFileName)))
ref_inv.write(metaOutputFileName, format="STATIONXML")
del query_ds
def getXmlFromIRIS(network=None):
if network is None:
return
client = Client("IRIS")
# Use level=response to get channel information...
# ...which holds the location code necessary for station referencing
inv = client.get_stations(network=network, level='response')
inv.write('./' + network + '.xml', format='stationxml', validate=True)
def get_stations(self, startdate=None, enddate=None, network=None, station=None, location=None, channel=None,
minlatitude=None, maxlatitude=None, minlongitude=None, maxlongitude=None, latitude=None, longitude=None, minradius=None, maxradius=None):
"""Get station inventory from IRIS server
=======================================================================================================
Input Parameters:
startdate, enddata - start/end date for searching
network - Select one or more network codes.
Can be SEED network codes or data center defined codes.
Multiple codes are comma-separated (e.g. "IU,TA").
station - Select one or more SEED station codes.
Multiple codes are comma-separated (e.g. "ANMO,PFO").
location - Select one or more SEED location identifiers.
Multiple identifiers are comma-separated (e.g. "00,01").
As a special case ?--? (two dashes) will be translated to a string of two space
characters to match blank location IDs.
channel - Select one or more SEED channel codes.
Multiple codes are comma-separated (e.g. "BHZ,HHZ").
minlatitude - Limit to events with a latitude larger than the specified minimum.
maxlatitude - Limit to events with a latitude smaller than the specified maximum.
minlongitude - Limit to events with a longitude larger than the specified minimum.
maxlongitude - Limit to events with a longitude smaller than the specified maximum.
latitude - Specify the latitude to be used for a radius search.
longitude - Specify the longitude to the used for a radius search.
minradius - Limit to events within the specified minimum number of degrees from the
geographic point defined by the latitude and longitude parameters.
maxradius - Limit to events within the specified maximum number of degrees from the
geographic point defined by the latitude and longitude parameters.
=======================================================================================================
"""
try: starttime = obspy.core.utcdatetime.UTCDateTime(startdate)
except: starttime = None
try: endtime = obspy.core.utcdatetime.UTCDateTime(enddate)
except: endtime = None
client = Client('IRIS')
inv = client.get_stations(network=network, station=station, starttime=starttime, endtime=endtime, channel=channel,
minlatitude=minlatitude, maxlatitude=maxlatitude, minlongitude=minlongitude, maxlongitude=maxlongitude,
latitude=latitude, longitude=longitude, minradius=minradius, maxradius=maxradius, level='channel')
self.add_stationxml(inv)
try: self.inv += inv
except: self.inv = inv
return
#Many (perhaps most) of the picks have no assigned channel.
#use the iris client's ability to parse lists of channels to get
#an appropriate waveform.
#compute back-azimuth
stalong=float(pick[4].strip())
stalat=float(pick[5].strip())
baz=distaz(evlat,evlong,stalat,stalong)[2]
#get appropriate N/E waveforms to rotate
#TODO convert this try/except block to use the IRIS client
try:
#search for N/1 channel with high-frequency response
inv=irisclient.get_stations(starttime=starttime,endtime=endtime,station=st,level="channel",channel="BHN,BH1,HHN,HH1,SHN,SH1")
#find appropriate channels in the inventory (ASDF returns list, not inventory type)
chan=inv.get_contents()['channels'][0].split('.')
stream=irisclient.get_waveforms(chan[0],chan[1],chan[2],chan[3],starttime,endtime)
wf1=stream[0]
if wf1.stats['channel'][-1] == '1':
wf2=irisclient.get_waveforms(chan[0],chan[1],chan[2],chan[3][0:-1]+'2',starttime,endtime)[0]
wfz=irisclient.get_waveforms(chan[0],chan[1],chan[2],chan[3][0:-1]+'Z',starttime,endtime)[0]
stream=Stream(traces=[wfz,wf1,wf2])
#get an inventory including the Z and E/2 channels
IRISinv=irisclient.get_stations(starttime=starttime,endtime=endtime,station=st,level="channel")
stream=stream.rotate(method="->ZNE",inventory=IRISinv)
else:
from obspy import UTCDateTime
import os
starttime = UTCDateTime("2012-10-01T01:00:00")
endtime = UTCDateTime("2012-10-02T01:00:00")
output_file = "/g/data/ha3/US_test.h5"
temp_sta = "249A"
perm_sta = "255A"
client = Client("IRIS")
ref_inv = client.get_stations(network="TA",
station=perm_sta,
channel="BHZ",
starttime=starttime,
endtime=endtime,
level='channel')
print(ref_inv)
temp_inv = client.get_stations(network="TA",
station=temp_sta,
channel="BHZ",
starttime=starttime,
endtime=endtime,
level='channel')
print(temp_inv)
# get waveforms
import matplotlib.animation as animation
Writer = animation.writers['pillow']
writer = Writer(fps=20, metadata=dict(artist='Me'), bitrate=1800)
sta = 'R32B'
loc = '00'
net = 'N4'
chan = 'HHZ'
stime = UTCDateTime('2019-08-16 12:59:10')
etime = stime + 120
client = Client()
inv = client.get_stations(network=net,
station=sta,
starttime=stime,
endtime=etime,
channel=chan,
level="response")
st = Stream()
st += client.get_waveforms(net, sta, loc, chan, stime, etime)
st.detrend('constant')
st.merge(fill_value=0)
st.attach_response(inv)
st.remove_response(output="DISP")
#st.rotate(method="->ZNE",inventory=inv)
st.filter("bandpass", freqmin=.5, freqmax=5)
tr = st[0]
t = np.linspace(0, (tr.stats.npts - 1) / tr.stats.sampling_rate,
num=tr.stats.npts)
def read_TA_lst(self, infname, startdate=None, enddate=None, startbefore=None, startafter=None, endbefore=None, endafter=None, location=None, channel=None,\
includerestricted=False, minlatitude=None, maxlatitude=None, minlongitude=None, maxlongitude=None, \
latitude=None, longitude=None, minradius=None, maxradius=None):
"""Get station inventory from IRIS server
=======================================================================================================
Input Parameters:
startdate, enddata - start/end date for searching
network - Select one or more network codes.
Can be SEED network codes or data center defined codes.
Multiple codes are comma-separated (e.g. "IU,TA").
station - Select one or more SEED station codes.
Multiple codes are comma-separated (e.g. "ANMO,PFO").
location - Select one or more SEED location identifiers.
Multiple identifiers are comma-separated (e.g. "00,01").
As a special case ?--? (two dashes) will be translated to a string of two space
characters to match blank location IDs.
channel - Select one or more SEED channel codes.
Multiple codes are comma-separated (e.g. "BHZ,HHZ").
includerestricted - default is False
minlatitude - Limit to events with a latitude larger than the specified minimum.
maxlatitude - Limit to events with a latitude smaller than the specified maximum.
minlongitude - Limit to events with a longitude larger than the specified minimum.
maxlongitude - Limit to events with a longitude smaller than the specified maximum.
latitude - Specify the latitude to be used for a radius search.
longitude - Specify the longitude to the used for a radius search.
minradius - Limit to events within the specified minimum number of degrees from the
geographic point defined by the latitude and longitude parameters.
maxradius - Limit to events within the specified maximum number of degrees from the
geographic point defined by the latitude and longitude parameters.
=======================================================================================================
"""
try:
starttime = obspy.core.utcdatetime.UTCDateTime(startdate)
except:
starttime = None
try:
endtime = obspy.core.utcdatetime.UTCDateTime(enddate)
except:
endtime = None
try:
startbefore = obspy.core.utcdatetime.UTCDateTime(startbefore)
except:
startbefore = None
try:
startafter = obspy.core.utcdatetime.UTCDateTime(startafter)
except:
startafter = None
try:
endbefore = obspy.core.utcdatetime.UTCDateTime(endbefore)
except:
endbefore = None
try:
endafter = obspy.core.utcdatetime.UTCDateTime(endafter)
except:
endafter = None
client = Client('IRIS')
init_flag = True
with open(infname, 'rb') as fio:
for line in fio.readlines():
network = line.split()[1]
station = line.split()[2]
if network == 'NET':
continue
# print network, station
if init_flag:
try:
inv = client.get_stations(network=network, station=station, starttime=starttime, endtime=endtime, startbefore=startbefore, startafter=startafter,\
endbefore=endbefore, endafter=endafter, channel=channel, minlatitude=minlatitude, maxlatitude=maxlatitude, \
minlongitude=minlongitude, maxlongitude=maxlongitude, latitude=latitude, longitude=longitude, minradius=minradius, \
maxradius=maxradius, level='channel', includerestricted=includerestricted)
except:
print('No station inv: ', line)
continue
init_flag = False
continue
try:
inv += client.get_stations(network=network, station=station, starttime=starttime, endtime=endtime, startbefore=startbefore, startafter=startafter,\
endbefore=endbefore, endafter=endafter, channel=channel, minlatitude=minlatitude, maxlatitude=maxlatitude, \
minlongitude=minlongitude, maxlongitude=maxlongitude, latitude=latitude, longitude=longitude, minradius=minradius, \
maxradius=maxradius, level='channel', includerestricted=includerestricted)
except:
print('No station inv: ', line)
continue
self.add_stationxml(inv)
try:
self.inv += inv
except:
self.inv = inv
return
)
service = fdsn
for i, pick in enumerate(picks):
# get waveform data
_st = service.get_waveforms(
pick.waveform_id['network_code'],
pick.waveform_id['station_code'],
pick.waveform_id['location_code'] or '',
pick.waveform_id['channel_code'][:2] + '?', starttime, endtime)
# get station metadata
_inv = fdsn.get_stations(
starttime=starttime,
endtime=endtime,
network=pick.waveform_id['network_code'],
station=pick.waveform_id['station_code'],
location=pick.waveform_id['location_code'] or '',
channel=pick.waveform_id['channel_code'][:2] + '?',
level="channel")
# Rotating streams when necessary while trimming to the same length all of them
_st = _st.rotate(method="->ZNE",
inventory=_inv,
components=('ZNE'))
# append stream to streams and inventory to inventories
if i == 0:
st = _st
inv = _inv
else:
st += _st
class Downloader:
def __init__(self,df,station,outdir):
self.station = station
self.data = df
self.out = outdir
# self.summary = [] # list to hold all tr_ids
# print(self.data)
# Resets indexing of DataFrame
# print('{}/{}_downloaded_streams.txt'.format(outdir,outdir.split('/')[-1]))
try:
#print('Make /Users/ja17375/Shear_Wave_Splitting/Data/SAC_files/{}'.format(station))
os.mkdir('{}/{}'.format(self.out,station))
except FileExistsError:
print('It already exists, Hooray! Less work for me!')
# pass
# Made
#self.outfile = open('/Users/ja17375/Shear_Wave_Splitting/Data/SAC_files/{}/{}_downloaded_streams_Jacks_Split.txt'.format(station,station),'w+')
self.attempts = 0 #Counter for how many attempted downloads there were
self.fdsnx = 0 #Counter for how many attempts hit a FDSNNoDataException
self.dwn = 0 #Counter for how many events were downloaded
self.ex = 0 #Counter for how many event already exist in filesystem and therefore werent downloaded
self.ts = 0 #Counter for events who;s traces are too short.
self.fdsnclient_evt = Client('IRIS') # Serparate client for events (hopefully to get round the "no event avialbel bug")
self.fdsnclient = Client('IRIS')
# Download Station Data
def download_station_data(self):
"""
Download or read important station data and make sure it is right
"""
try:
stat = self.fdsnclient.get_stations(channel='BH?',station='{}'.format(self.station))
self.network = stat.networks[0].code
self.stla = stat.networks[0].stations[0].latitude
self.stlo = stat.networks[0].stations[0].longitude
# print(self.network)
return True
except FDSNNoDataException:
return False
def set_event_data(self,i,sep):
"""
Function to download event information so we can get mroe accurate start times
"""
self.evla = self.data.EVLA[i]
self.evlo = self.data.EVLO[i]
if sep is False:
self.date = self.data.DATE[i]
if 'TIME' in self.data.columns:
self.time = self.data.TIME[i]
else:
self.time = '0000'
datetime = str(self.date) + "T" + self.time #Combined date and time inputs for converstion t UTCDateTime object
self.start = obspy.core.UTCDateTime(datetime)
try:
if 'TIME' in self.data.columns:
end = self.start + 60
print('Search starts {} , ends at {}'.format(self.start,end))
cat = self.fdsnclient_evt.get_events(starttime=self.start,endtime=self.start+86400 ,latitude=self.evla,longitude=self.evlo,maxradius=0.25,minmag=5.5) #Get event in order to get more accurate event times.
# self.time = '{:02d}{:02d}{:02d}'.format(cat[0].origins[0].time.hour,cat[0].origins[0].time.minute,cat[0].origins[0].time.second)
else:
# No Time so we need to search over the whole day
end = self.start + 86400
print('Search starts {} , ends at {}'.format(self.start,end))
cat = self.fdsnclient_evt.get_events(starttime=self.start,endtime=self.start+86400 ,latitude=self.evla,longitude=self.evlo,maxradius=0.25,minmag=5.5) #Get event in order to get more accurate event times.
if len(cat) > 1:
print("WARNING: MORE THAN ONE EVENT OCCURS WITHIN 5km Search!!")
print('Selecting Event with the largest magnitude')
# Select biggest magnitude
max_mag = max([cat[j].magnitudes[0].mag for j in [i for i,c in enumerate(cat)]])
cat = cat.filter('magnitude >= {}'.format(max_mag))
print(cat)
self.time = '{:02d}{:02d}{:02d}'.format(cat[0].origins[0].time.hour,cat[0].origins[0].time.minute,cat[0].origins[0].time.second)
self.start.minute = cat[0].origins[0].time.minute
self.start.hour = cat[0].origins[0].time.hour
print(self.time)
self.start.second = cat[0].origins[0].time.second
# Lines commented out as they are only needed if TIME is prvoided as hhmm (For Deng's events there is
# no TIME provided so we just have to used the event time downloaded)
# if self.start.minute != cat[0].origins[0].time.minute:
# self.time = self.time[:2] + str(cat[0].origins[0].time.minute) # Time is hhmm so we subtract the old minute value and add the new one
dep = cat[0].origins[0].depth
if dep is not None:
self.evdp = dep/1000.0 # divide by 1000 to convert depth to [km[]
else:
self.evdp = 10.0 #Hard code depth to 10.0 km if evdp cannot be found
except FDSNNoDataException:
print("No Event Data Available")
self.evdp = 0
except FDSNException:
print("FDSNException for get_events")
# pass
elif sep is True:
self.start = obspy.core.UTCDateTime('{}'.format(self.data.DATE[i])) #iso8601=True
self.date = '{:04d}{:03d}'.format(self.start.year,self.start.julday)
self.time = '{:02d}{:02d}{:02d}'.format(self.start.hour,self.start.minute,self.start.second)
self.evdp = self.data.EVDP[i]
def download_traces(self,ch):
"""
Function that downloads the traces for a given event and station
"""
# if len(self.time) is 6:
print('Start: {}. self.time: {}'.format(self.start,self.time))
tr_id = "{}/{}/{}_{}_{}_{}.sac".format(self.out,self.station,self.station,self.date,self.time,ch)
# elif len(self.time) is 4:
# tr_id = "{}/{}/{}_{}_{}{}_{}.sac".format(self.out,self.station,self.station,self.date,self.time,self.start.second,ch)
# print("Looking for :", tr_id)
if ch == 'BHE':
self.attempts += 1 # Counts the number of traces that downloads are attempted for
if os.path.isfile(tr_id) == True:
print("{} exists. It was not downloaded".format(tr_id)) # File does not exist
if ch == 'BHE':
out_id = '_'.join(tr_id.split('_')[0:-1])
self.outfile.write('{}_\n'.format(out_id))
# self.summary.append(out_id)
self.ex += 1
else:
# print("It doesnt exists. Download attempted")
st = obspy.core.stream.Stream() # Initialises our stream variable
if self.network is 'BK':
download_client = obspy.clients.fdsn.Client('NCEDC')
else:
download_client = obspy.clients.fdsn.Client('IRIS')
try:
st = download_client.get_waveforms(self.network,self.station,'??',ch,self.start,self.start + 3000,attach_response=True)
# print(st)
if len(st) > 3:
print("WARNING: More than three traces downloaded for event ", tr_id)
elif len(st) < 3:
self.ts += 1
dist_client = iris.Client() # Creates client to calculate event - station distance
print('STLA {} STLO {} EVLA {} EVLO {}'.format(self.stla,self.stlo,self.evla,self.evlo))
self.d = dist_client.distaz(stalat=self.stla,stalon=self.stlo,evtlat=self.evla,evtlon=self.evlo)
print('Source-Reciever distance is {}'.format(self.d['distance']))
if (self.d['distance'] >= 85.0) or (self.d['distance'] >=145.0):
if st[0].stats.endtime - st[0].stats.starttime >= 2000:
# print('Record length is {}, which is ok'.format(st[0].stats.endtime - st[0].stats.starttime))
self.write_st(st,tr_id)
if ch == 'BHE':
self.dwn += 1
out_id = '_'.join(tr_id.split('_')[0:-1])
self.outfile.write('{}_\n'.format(out_id))
# self.summary.append(out_id)
else:
print('Record length is {}, which is too short'.format(st[0].stats.endtime - st[0].stats.starttime))
if ch == 'BHE':
self.ts += 1
else:
print("Source Reciever Distance is too small")
if ch == 'BHE':
self.ts += 1
except FDSNException:
print('No Data Exception??')
if ch == 'BHE':
self.fdsnx += 1
def write_st(self,st,tr_id):
"""
"""
# print('Writing {}'.format(tr_id))
st[0].write('holder.sac', format='SAC',) # Writes traces as SAC files
#st.plot()
st_2 = obspy.core.read('holder.sac')
#sac = AttribDict() # Creates a dictionary sacd to contain all the header information I want.
## Set origin times
st_2[0].stats.sac.nzyear = self.start.year
st_2[0].stats.sac.nzjday = self.start.julday
st_2[0].stats.sac.nzhour = self.start.hour
st_2[0].stats.sac.nzmin = self.start.minute
st_2[0].stats.sac.nzsec = self.start.second
st_2[0].stats.sac.nzmsec = self.start.microsecond
## Station Paramters
st_2[0].stats.sac.stla = self.stla
st_2[0].stats.sac.stlo = self.stlo
## Event Paramters
st_2[0].stats.sac.evla = self.evla#cat[0].origins[0].latitude # Event latitude
st_2[0].stats.sac.evlo = self.evlo#cat[0].origins[0].longitude # Event longitude
st_2[0].stats.sac.evdp = self.evdp#cat[0].origins[0].depth/1000 # Event depth
st_2[0].stats.sac.kstnm = '{:>8}'.format(self.station)
# print('stla = {}, stlo = {}, evla = {}, evlo = {}'.format(stla,stlo,evla,evlo))
st_2[0].stats.sac.gcarc = self.d['distance'] # d.values returns the values from dictionary d produced by distaz. list converts this to a list attribute which can then be indexed to extract the great cricle distance in degrees
st_2[0].stats.sac.dist = self.d['distancemeters']/1000 # Distnace in kilometers
st_2[0].stats.sac.baz = self.d['backazimuth'] # Backzimuth (Reciever - SOurce)
st_2[0].stats.sac.az = self.d['azimuth'] # Azimuth (Source - Receiver)
st_2[0].write(tr_id, format='SAC',byteorder=1)
def __init__(self, stream):
self.stream = stream
client = Client("IRIS")
self.inv = client.get_stations(network=stream.traces[0].stats.network,
station=stream.traces[0].stats.station,
level='response')
def fdsnws2geomag():
'''Convert fdsnws query to geomagnetic data file'''
parser = argparse.ArgumentParser(
description=
'Query the FDSN webservice and convert the geomagnetic data standards')
parser.add_argument('--url',
default=DEFAULT_FDNWS,
help='FDSN-WS URL (default: %s)' % DEFAULT_FDNWS)
parser.add_argument('--format',
choices=['internet', 'iaga2002', 'imfv122'],
default='iaga2002',
help="Output format (default: iaga2002)")
parser.add_argument('--output',
default=sys.stdout,
help='Output file (default: stdout).')
# query specific parameters
parser.add_argument('--date',
default=DEFAULT_DATE,
help='Date of the request (default: %s)' %
DEFAULT_DATE)
parser.add_argument('--network',
default=DEFAULT_NETWORK,
help='Network code (default: DEFAULT_NETWORK)')
parser.add_argument('--station', required=True, help='Station code')
parser.add_argument(
'--location',
nargs='+',
default=DEFAULT_LOCATIONS,
help=
'Data type + source (data type = R - raw, D - definitive, source = 0,1,2,3..., default: %s)'
% DEFAULT_LOCATIONS)
parser.add_argument('--channel',
nargs='+',
default=DEFAULT_CHANNELS,
help='FDSN compliant channel query (default: %s)' %
",".join(DEFAULT_CHANNELS))
parser.add_argument('-v',
'--verbose',
action='store_true',
help='Verbosity')
args = parser.parse_args()
# Set the logging level
logging.basicConfig(
format='%(asctime)s.%(msecs)03d %(levelname)s \
%(module)s %(funcName)s: %(message)s',
datefmt="%Y-%m-%d %H:%M:%S",
level=logging.INFO if args.verbose else logging.WARNING)
# Convert date to starttime and endtime
reftime = UTCDateTime(args.date)
starttime = UTCDateTime(
reftime.datetime.replace(hour=0, minute=0, second=0, microsecond=0))
endtime = UTCDateTime(
reftime.datetime.replace(hour=23,
minute=59,
second=59,
microsecond=999999))
# Create a handler client
logging.info("Connecting to %s", args.url)
client = Client(args.url)
logging.info("Requesting data for %s.%s.%s.%s from %s to %s", args.network,
args.station, ",".join(args.location), ",".join(args.channel),
starttime.isoformat(), endtime.isoformat())
stream = Stream(
client.get_waveforms(args.network, args.station,
",".join(args.location), ",".join(args.channel),
starttime, endtime))
logging.info("Found stream: %s", str(stream.__str__(extended=True)))
# Load optional inventory information
inventory = client.get_stations(network=args.network, station=args.station)
# Handle if no data was found
if not stream:
logging.warning("No data found")
return 1
# Before sending the raw data for writing, we need to trim the response
# from the FDSNWS query to are actual request time. We also merge by
# location.
logging.info("Writing informtion to %s", str(args.output))
# Correct the endtime with delta of the first trace
endtime = UTCDateTime(reftime.datetime) + 86400 - stream[0].stats.delta
stream.merge_by_location().trim(starttime,
endtime).write(args.output,
format=args.format,
inventory=inventory)
def fdsnws2directory():
'''
Much like the fdsnws2geomag but is purely design to get the data from the FDSN-WS
and add it according to the structure found on geomagnetic daqs servers.
These structure vary depending on the source but can be customized by input argument.
Filename for each can not be customized since these following strict naming convention.
The convention can be found in the pygeomag/data/formats directory.
'''
parser = argparse.ArgumentParser(
description=
'Query the FDSN webservice and convert the geomagnetic data standards')
parser.add_argument('--url',
default=DEFAULT_FDNWS,
help='FDSN-WS URL (default: %s)' % DEFAULT_FDNWS)
parser.add_argument('--format',
choices=['iaga2002', 'imfv122'],
default='iaga2002',
help="Output format (default: iaga2002)")
parser.add_argument(
'--directory',
default=DEFAULT_DIRECTORY,
help=
'Output directory with optional datetime parameter as accept by python datetime (default: %s).'
% DEFAULT_DIRECTORY)
# query specific parameters
parser.add_argument('--date',
default=DEFAULT_DATE,
help='Date of the request (default: %s)' %
DEFAULT_DATE)
parser.add_argument('--network',
default=DEFAULT_NETWORK,
help='Network code (default: DEFAULT_NETWORK)')
parser.add_argument('--station',
default='*',
help='Station code (default: *)')
parser.add_argument(
'--location',
nargs='+',
default=DEFAULT_LOCATIONS,
help=
'Data type + source (data type = R - raw, D - definitive, source = 0,1,2,3..., default: %s)'
% DEFAULT_LOCATIONS)
parser.add_argument('--channel',
nargs='+',
default=DEFAULT_CHANNELS,
help='FDSN compliant channel query (default: %s)' %
"," % DEFAULT_CHANNELS)
parser.add_argument('-v',
'--verbose',
action='store_true',
help='Verbosity')
args = parser.parse_args()
# Set the logging level
logging.basicConfig(
format='%(asctime)s.%(msecs)03d %(levelname)s \
%(module)s %(funcName)s: %(message)s',
datefmt="%Y-%m-%d %H:%M:%S",
level=logging.INFO if args.verbose else logging.WARNING)
# Convert date to starttime and endtime
reftime = UTCDateTime(args.date)
starttime = UTCDateTime(
reftime.datetime.replace(hour=0, minute=0, second=0, microsecond=0))
endtime = UTCDateTime(
reftime.datetime.replace(hour=23,
minute=59,
second=59,
microsecond=999999))
# Create a handler client
logging.info("Connecting to %s", args.url)
client = Client(args.url)
logging.info("Requesting data for %s.%s.%s.%s from %s to %s", args.network,
args.station, ",".join(args.location), ",".join(args.channel),
starttime.isoformat(), endtime.isoformat())
stream = Stream(
client.get_waveforms(args.network, args.station,
",".join(args.location), ",".join(args.channel),
starttime, endtime))
logging.info("Found stream: %s", str(stream.__str__(extended=True)))
# Load optional inventory information
inventory = client.get_stations(network=args.network, station=args.station)
# Handle if no data was found
if not stream:
logging.warning("No data found")
return 1
# Before sending the raw data for writing, we need to trim the response
# from the FDSNWS query to are actual request time. We also merge by
# location.
# Correct the endtime with delta of the first trace
endtime = UTCDateTime(reftime.datetime) + 86400 - stream[0].stats.delta
stream = stream.merge_by_location().trim(starttime, endtime)
# Loop through the list of stream and generate the unique list of station
# codes. We know the network code is constant and its a single sampling rate
# request.
stations = set([trace.stats.station for trace in stream])
# Convert the directory format string to a full path
directory = starttime.strftime(args.directory)
logging.info("Creating directory %s if does not exist", directory)
pathlib.Path(directory).mkdir(parents=True, exist_ok=True)
for station in stations:
# Extract the station I need
extract = stream.select(station=station)
# Generate its filename (depends on the format)
if args.format in ['iaga2002']:
filename = pygeomag.data.formats.iaga2002.get_filename(
extract[0].stats)
elif args.format in ['imfv122']:
filename = pygeomag.data.formats.imfv122.get_filename(
extract[0].stats)
else:
raise ValueError(
"Unable to generate filename for unhandled format %s" %
args.format)
filename = os.path.join(directory, filename)
logging.info("Writing magnetic data to %s", filename)
extract.write(filename, format=args.format, inventory=inventory)
ax = fig.add_subplot(1, 1, 1)
ax.plot(tr_Z.times("matplotlib"), tr_Z.data, "k-")
ax.xaxis_date()
fig.autofmt_xdate()
plt.ylabel('counts')
plt.title('Raw Data')
fig.tight_layout()
plt.show()
fig.savefig('1_raw.png')
# downloading the instrument response of the station from IRIS
client = Client("IRIS")
inventory = client.get_stations(network=dataset.attrs['network_code'],
station=dataset.attrs['receiver_code'],
starttime=UTCDateTime(dataset.attrs['trace_start_time']),
endtime=UTCDateTime(dataset.attrs['trace_start_time']) + 60,
loc="*",
channel="*",
level="response")
# exploring the downloaded response file
print(inventory)
inventory[0].plot_response(min_freq=1E-4)
# converting into displacement
st = make_stream(dataset)
st = st.remove_response(inventory=inventory, output="DISP", plot=False)
tr_Z = st[2]
fig = plt.figure()
ax = fig.add_subplot(1, 1, 1)
ax.plot(tr_Z.times("matplotlib"), tr_Z.data, "k-")
mpl.rc('font', serif='Times')
mpl.rc('text', usetex=True)
mpl.rc('font', size=18)
debug = True
sta = 'COR'
chans = '00'
presloc = '30'
net = "IU"
stime = UTCDateTime('2019-121T00:00:00.0')
etime = stime + 3. * 24. * 60. * 60.
client = Client()
inv = client.get_stations(network="IU",
station=sta,
starttime=stime,
endtime=etime,
channel="LH*",
level='response')
if debug:
print(inv)
ctime = stime
st = Stream()
#while ctime <= etime:
# string = '/tr1/telemetry_days/IU_' + sta + '/' + str(ctime.year) + '/' + \
# str(ctime.year) + '_' + str(ctime.julday).zfill(3) + '/*'
# st += read(string + chans + '_LH*')
# st += read(string + presloc + '_LDO*')
# ctime += 24.*60.*60.
def create_SG2K_initiate(self, event, quake_df):
# Launch the custom station/component selection dialog
sel_dlg = selectionDialog(parent=self,
sta_list=self.station_list,
chan_list=self.channel_codes)
if sel_dlg.exec_():
select_sta, select_comp = sel_dlg.getSelected()
# specify output directory for miniSEED files
temp_seed_out = os.path.join(os.path.dirname(self.cat_filename),
event)
# create directory
if os.path.exists(temp_seed_out):
shutil.rmtree(temp_seed_out)
os.mkdir(temp_seed_out)
query_time = UTCDateTime(quake_df['qtime'] - (10 * 60)).timestamp
trace_starttime = UTCDateTime(quake_df['qtime'] - (5 * 60))
trace_endtime = UTCDateTime(quake_df['qtime'] + (15 * 60))
# Create a Stream object to put data into
# st = Stream()
# Create a dictionary to put traces into (keys are tr_ids)
st_dict = defaultdict(list)
print('---------------------------------------')
print('Finding Data for Earthquake: ' + event)
if os.path.splitext(self.db_filename)[1] == ".db":
# run SQL query
for matched_entry in self.session.query(Waveforms). \
filter(or_(and_(Waveforms.starttime <= query_time, query_time < Waveforms.endtime),
and_(query_time <= Waveforms.starttime, Waveforms.starttime < query_time + 30 * 60)),
Waveforms.station.in_(select_sta),
Waveforms.component.in_(select_comp)):
print(matched_entry.ASDF_tag)
# read in the data to obspy
temp_st = read(
os.path.join(matched_entry.path,
matched_entry.waveform_basename))
# modify network header
temp_tr = temp_st[0]
temp_tr.stats.network = matched_entry.new_network
# st.append(temp_tr)
st_dict[temp_tr.get_id()].append(temp_tr)
if os.path.splitext(self.db_filename)[1] == ".json":
# run python dictionary query
for key, matched_entry in self.network_dict.iteritems():
if ((matched_entry['starttime'] <= query_time < matched_entry['endtime']) \
or (
query_time <= matched_entry['starttime'] and matched_entry['starttime'] < query_time + (
30 * 60))) \
and ((matched_entry['station'] in select_sta) and (
matched_entry['component'] in select_comp)):
print(matched_entry['ASDF_tag']
) #, os.path.join(matched_entry['path'], key))
# read in the data to obspy
temp_st = read(os.path.join(matched_entry['path'],
key))
# modify network header
temp_tr = temp_st[0]
temp_tr.stats.network = matched_entry['new_network']
# trim trace to start and endtime
temp_tr.trim(starttime=trace_starttime,
endtime=trace_endtime)
# st.append(temp_tr)
st_dict[temp_tr.get_id()].append(temp_tr)
# free memory
temp_st = None
temp_tr = None
if not len(st_dict) == 0:
# .__nonzero__():
print('')
print('Merging Traces from %s Stations....' % len(st_dict))
# Attempt to merge all traces with matching ID'S (same keys in dict) in place
# st.merge()
for key in st_dict.keys():
if len(st_dict[key]) > 1:
temp_st = Stream(traces=st_dict[key])
# merge in place
# print('\tMerging %s in Stream:' % temp_st.count())
temp_st.merge()
# assign trace back to dictionary key if there is data
if temp_st.__nonzero__():
print("Station {0} has {1} Seconds of data".format(
key, temp_st[0].stats.endtime -
temp_st[0].stats.starttime))
st_dict[key] = temp_st[0]
elif not temp_st.__nonzero__():
print("No Data for: %s" % key)
# no data for station delete key
del st_dict[key]
continue
elif len(st_dict[key]) == 1:
print("Station {0} has {1} Seconds of data".format(
key, st_dict[key][0].stats.endtime -
st_dict[key][0].stats.starttime))
st_dict[key] = st_dict[key][0]
elif len(st_dict[key]) == 0:
# no data for station delete key
print("No Data for: %s" % key)
del st_dict[key]
print(
'\nTrimming Traces to 20 mins around earthquake time....')
# now trim the st object to 5 mins
# before query time and 15 minutes afterwards
for key in st_dict.keys():
st_dict[key] = st_dict[key].trim(starttime=trace_starttime,
endtime=trace_endtime,
pad=True,
fill_value=0)
# st.trim(starttime=trace_starttime, endtime=trace_endtime, pad=True, fill_value=0)
try:
# write traces into temporary directory
# for tr in st:
for key in st_dict.keys():
if type(st_dict[key]) == Stream:
#there is a problem with network codes (two stations named the same)
#ignore it for now
continue
st_dict[key].write(os.path.join(
temp_seed_out, st_dict[key].get_id() + ".MSEED"),
format="MSEED")
print("\nWrote Temporary MiniSEED data to: " +
temp_seed_out)
print('')
except:
print("Something Went Wrong!")
else:
print("No Data for Earthquake!")
# free memory
st_dict = None
# Now requesting reference station data from IRIS if desired
if self.ref_radioButton.isChecked():
ref_dir = os.path.join(temp_seed_out, 'ref_data')
# create ref directory
if os.path.exists(ref_dir):
shutil.rmtree(ref_dir)
os.mkdir(ref_dir)
# request stations that are close to the selected stations
# first use the coords lists to get a bounding box for array
def calc_bounding_box(x, y):
min_x, max_x = (min(x), max(x))
min_y, max_y = (min(y), max(y))
return (min_x, max_x, min_y, max_y)
bb = calc_bounding_box(self.station_coords[0],
self.station_coords[1])
# request data for near earthquake time up to 5 degrees from bounding box of array
print(
'\nRequesting Waveform Data from Nearby Permanent Network Stations....'
)
client = Client("IRIS")
self.ref_inv = client.get_stations(
network="AU",
starttime=UTCDateTime(quake_df['qtime'] - (5 * 60)),
endtime=UTCDateTime(quake_df['qtime'] + (15 * 60)),
minlongitude=bb[0] - 2,
maxlongitude=bb[1] + 2,
minlatitude=bb[2] - 2,
maxlatitude=bb[3] + 2,
level='channel')
print(self.ref_inv)
ref_st = Stream()
# go through inventory and request timeseries data
for net in self.ref_inv:
for stn in net:
try:
ref_st += client.get_waveforms(
network=net.code,
station=stn.code,
channel='*',
location='*',
starttime=UTCDateTime(quake_df['qtime'] -
(5 * 60)),
endtime=UTCDateTime(quake_df['qtime'] +
(15 * 60)))
except FDSNException:
print(
'No Data for Earthquake from Reference Station: '
+ stn.code)
else:
# plot the reference stations
js_call = "addRefStation('{station_id}', {latitude}, {longitude});" \
.format(station_id=stn.code, latitude=stn.latitude,
longitude=stn.longitude)
self.web_view.page().mainFrame(
).evaluateJavaScript(js_call)
try:
# write ref traces into temporary directory
for tr in ref_st:
tr.write(os.path.join(ref_dir, tr.id + ".MSEED"),
format="MSEED")
print("Wrote Reference MiniSEED data to: " + ref_dir)
print('\nEarthquake Data Query Done!!!')
except:
print("Something Went Wrong Writing Reference Data!")
self.ref_inv.write(os.path.join(ref_dir, "ref_metadata.xml"),
format="STATIONXML")
