Exemple #1
0
def remove_response_paz(st, paz_path, pre_filt):
    """
    remove response using paz file
    """
    for trace in st:
        # get key
        network = trace.stats.network
        station = trace.stats.station
        channel = trace.stats.channel
        key = f"{network}.{station}.{channel}"
        paz_path_used = join(paz_path, key)
        # try to read paz
        try:
            attach_paz(trace, paz_path_used)
        except:  # pylint: disable=bare-except
            return None
        # ndarray
        data = simulate_seismometer(trace.data,
                                    trace.stats.sampling_rate,
                                    paz_remove=trace.stats.paz,
                                    water_level=6e9,
                                    zero_mean=False,
                                    taper=False,
                                    pre_filt=pre_filt,
                                    sacsim=True)
        trace.data = data
    return st
Exemple #2
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def remove_response(st, pre_filt=None, inv=None):
    for index, item in enumerate(st):
        pz_vir_file = io.StringIO()
        inv_tr = inv.select(channel=item.stats.channel)
        inv_tr.write(pz_vir_file, format="SACPZ")
        pz_vir_file.seek(0)
        attach_paz(item, pz_vir_file)
        data = simulate_seismometer(item.data,
                                    item.stats.sampling_rate,
                                    paz_remove=item.stats.paz,
                                    water_level=6e9,
                                    zero_mean=False,
                                    taper=False,
                                    pre_filt=pre_filt,
                                    sacsim=True)
        st[index].data = data
    return st
Exemple #3
0
st = read('RAW/*', debug_headers=True)
k = len(st)
i = 0
while i < k:
    tr = st[i]
    print(tr.id, tr.stats.starttime.year, tr.stats.starttime.julday)
    ### differential Volcity to Accerletion
    diftr = obspy.core.trace.Trace.differentiate(tr)

    ### Pole and Zero
    chn = tr.stats.channel
    sta = tr.stats.station
    Ps = "PZs/" + "*" + sta + "*" + "HHZ" + "*"
    HH_paz = glob.glob(Ps)
    pz.attach_paz(diftr, HH_paz[0])
    paz = dict(diftr.stats.paz)

    ### power spectrum density
    ppsd = PPSD(diftr.stats, paz, ppsd_length=3600.0, overlap=0.95)
    ppsd.add(diftr)
    [t, amp] = ppsd.get_mode()

    ### Output
    ts = str(tr.stats.starttime.year) + "." + str(tr.stats.starttime.julday)
    txt = sta + "." + chn + "." + ts + ".txt"
    with open(txt, mode="w") as f:
        for j in range(len(t)):
            f.write("%e %6.2f\n" % (t[j], amp[j]))

    i += 1
        et = event.origins[0].time #Get eventtime
        #print('Event time: %s' %et)
        path = '../WAV/%s/%d/%02d/%d-%02d-%02d-*'\
                %(wav_path, et.year, et.month, et.year, et.month, et.day) #Read in corresponding waveform

        #Find file with corresponding file name
        for fname in glob.glob(path):
            stream = obspy.read(fname)
            if stream[0].stats.starttime > et-40 and stream[0].stats.starttime < et:
                st1 = stream
                #print('Filename: %s' %fname)

        #Remove instrument response
        for tr in st1:
        	attach_paz(tr, '/Volumes/LS_M2/PpolPackage-master/response/SAC_PZs_XX_SPOBS2_SHZ_00_2001.001.00.00.00.0000_2021.001.24.60.60.99999')
        st1.simulate(paz_remove = tr.stats.paz)

        #Preprocessing
        st1.detrend('demean')
        st1.detrend('simple')
        st1.taper(max_percentage = 0.01, type = 'hann')
        st1.filter('bandpass', freqmin = fmi, freqmax = fma)

        #Select traces from specific station
        st = obspy.core.stream.Stream()        
        for tr in st1.select(station = 'LSb%s' %ns):
        	st.append(tr)

        #print(st)
    if dist > d_con:
        et = event.origins[0].time  #get eventtime
        path = path_to_wav + '/%d/%02d/%d-%02d-%02d-*'\
                %(et.year, et.month, et.year, et.month, et.day) #read in corresponding waveform

        # Find file with corresponding file name that fits to the eventtime
        for fname in glob.glob(path):
            stream = obspy.read(fname)
            if stream[0].stats.starttime > et - 40 and stream[
                    0].stats.starttime < et:
                st1 = stream
                #print('filename: %s' %fname)

        # Remove instrument response
        for tr in st1:
            attach_paz(tr, path_to_response_file)
        st1.simulate(paz_remove=tr.stats.paz)

        # Preprocessing
        st1.detrend('demean')
        st1.detrend('simple')
        st1.taper(max_percentage=0.01, type='hann')
        st1.filter('bandpass', freqmin=fmi, freqmax=fma)

        # Select traces from specific station
        st = obspy.core.stream.stream()
        for tr in st1.select(station='lsb%s' % ns):
            st.append(tr)

        #print(st)