コード例 #1
0
ファイル: mchedr.py プロジェクト: bonaime/obspy
    def _parse_record_m(self, line, event, pick):
        """
        Parses the 'surface wave record' M
        """
        # unused: Z_comp = line[7]
        z_period = self._float(line[9:13])
        # note: according to the format documentation,
        # column 20 should be blank. However, it seems that
        # z_amplitude includes that column
        z_amplitude = self._float(line[13:21])  # micrometers
        # TODO: N_comp and E_comp seems to be never there
        msz_mag = line[49:52]
        ms_mag = self._float(line[53:56])
        # unused: Ms_usage_flag = line[56]

        evid = event.resource_id.id.split('/')[-1]
        station_string = \
            pick.waveform_id.get_seed_string()\
            .replace(' ', '-').replace('.', '_').lower()
        amplitude = None
        if z_amplitude is not None:
            amplitude = Amplitude()
            prefix = '/'.join((res_id_prefix, 'amp', evid, station_string))
            amplitude.resource_id = ResourceIdentifier(prefix=prefix)
            amplitude.generic_amplitude = z_amplitude * 1E-6
            amplitude.unit = 'm'
            amplitude.period = z_period
            amplitude.type = 'AS'
            amplitude.magnitude_hint = 'Ms'
            amplitude.pick_id = pick.resource_id
            event.amplitudes.append(amplitude)
        if msz_mag is not None:
            station_magnitude = StationMagnitude()
            prefix = '/'.join((res_id_prefix, 'stationmagntiude',
                               evid, station_string))
            station_magnitude.resource_id = ResourceIdentifier(prefix=prefix)
            station_magnitude.origin_id = event.origins[0].resource_id
            station_magnitude.mag = ms_mag
            station_magnitude.station_magnitude_type = 'Ms'
            if amplitude is not None:
                station_magnitude.amplitude_id = amplitude.resource_id
            event.station_magnitudes.append(station_magnitude)
コード例 #2
0
ファイル: mchedr.py プロジェクト: kaeufl/obspy
    def _parseRecordM(self, line, event, pick):
        """
        Parses the 'surface wave record' M
        """
        # unused: Z_comp = line[7]
        Z_period = self._float(line[9:13])
        # note: according to the format documentation,
        # column 20 should be blank. However, it seems that
        # Z_amplitude includes that column
        Z_amplitude = self._float(line[13:21])  # micrometers
        # TODO: N_comp and E_comp seems to be never there
        MSZ_mag = line[49:52]
        Ms_mag = self._float(line[53:56])
        # unused: Ms_usage_flag = line[56]

        evid = event.resource_id.id.split("/")[-1]
        station_string = pick.waveform_id.getSEEDString().replace(" ", "-").replace(".", "_").lower()
        amplitude = None
        if Z_amplitude is not None:
            amplitude = Amplitude()
            prefix = "/".join((res_id_prefix, "amp", evid, station_string))
            amplitude.resource_id = ResourceIdentifier(prefix=prefix)
            amplitude.generic_amplitude = Z_amplitude * 1e-6
            amplitude.unit = "m"
            amplitude.period = Z_period
            amplitude.type = "AS"
            amplitude.magnitude_hint = "Ms"
            amplitude.pick_id = pick.resource_id
            event.amplitudes.append(amplitude)
        if MSZ_mag is not None:
            station_magnitude = StationMagnitude()
            prefix = "/".join((res_id_prefix, "stationmagntiude", evid, station_string))
            station_magnitude.resource_id = ResourceIdentifier(prefix=prefix)
            station_magnitude.origin_id = event.origins[0].resource_id
            station_magnitude.mag = Ms_mag
            station_magnitude.station_magnitude_type = "Ms"
            if amplitude is not None:
                station_magnitude.amplitude_id = amplitude.resource_id
            event.station_magnitudes.append(station_magnitude)
コード例 #3
0
ファイル: core.py プロジェクト: mbyt/obspy
def _read_picks(f, new_event):
    """
    Internal pick reader. Use read_nordic instead.

    :type f: file
    :param f: File open in read mode
    :type wav_names: list
    :param wav_names: List of waveform files in the sfile
    :type new_event: :class:`~obspy.core.event.event.Event`
    :param new_event: event to associate picks with.

    :returns: :class:`~obspy.core.event.event.Event`
    """
    f.seek(0)
    evtime = new_event.origins[0].time
    pickline = []
    # Set a default, ignored later unless overwritten
    snr = None
    for lineno, line in enumerate(f):
        if line[79] == '7':
            header = line
            break
    for lineno, line in enumerate(f):
        if len(line.rstrip('\n').rstrip('\r')) in [80, 79] and \
           line[79] in ' 4\n':
            pickline += [line]
    for line in pickline:
        if line[18:28].strip() == '':  # If line is empty miss it
            continue
        weight = line[14]
        if weight == '_':
            phase = line[10:17]
            weight = 0
            polarity = ''
        else:
            phase = line[10:14].strip()
            polarity = line[16]
            if weight == ' ':
                weight = 0
        polarity_maps = {"": "undecidable", "C": "positive", "D": "negative"}
        try:
            polarity = polarity_maps[polarity]
        except KeyError:
            polarity = "undecidable"
        # It is valid nordic for the origin to be hour 23 and picks to be hour
        # 00 or 24: this signifies a pick over a day boundary.
        if int(line[18:20]) == 0 and evtime.hour == 23:
            day_add = 86400
            pick_hour = 0
        elif int(line[18:20]) == 24:
            day_add = 86400
            pick_hour = 0
        else:
            day_add = 0
            pick_hour = int(line[18:20])
        try:
            time = UTCDateTime(evtime.year, evtime.month, evtime.day,
                               pick_hour, int(line[20:22]),
                               float(line[23:28])) + day_add
        except ValueError:
            time = UTCDateTime(evtime.year, evtime.month, evtime.day,
                               int(line[18:20]), pick_hour,
                               float("0." + line[23:38].split('.')[1])) +\
                60 + day_add
            # Add 60 seconds on to the time, this copes with s-file
            # preference to write seconds in 1-60 rather than 0-59 which
            # datetime objects accept
        if header[57:60] == 'AIN':
            ain = _float_conv(line[57:60])
            warnings.warn('AIN: %s in header, currently unsupported' % ain)
        elif header[57:60] == 'SNR':
            snr = _float_conv(line[57:60])
        else:
            warnings.warn('%s is not currently supported' % header[57:60])
        # finalweight = _int_conv(line[68:70])
        # Create a new obspy.event.Pick class for this pick
        _waveform_id = WaveformStreamID(station_code=line[1:6].strip(),
                                        channel_code=line[6:8].strip(),
                                        network_code='NA')
        pick = Pick(waveform_id=_waveform_id, phase_hint=phase,
                    polarity=polarity, time=time)
        try:
            pick.onset = onsets[line[9]]
        except KeyError:
            pass
        if line[15] == 'A':
            pick.evaluation_mode = 'automatic'
        else:
            pick.evaluation_mode = 'manual'
        # Note these two are not always filled - velocity conversion not yet
        # implemented, needs to be converted from km/s to s/deg
        # if not velocity == 999.0:
            # new_event.picks[pick_index].horizontal_slowness = 1.0 / velocity
        if _float_conv(line[46:51]) is not None:
            pick.backazimuth = _float_conv(line[46:51])
        # Create new obspy.event.Amplitude class which references above Pick
        # only if there is an amplitude picked.
        if _float_conv(line[33:40]) is not None:
            _amplitude = Amplitude(generic_amplitude=_float_conv(line[33:40]),
                                   period=_float_conv(line[41:45]),
                                   pick_id=pick.resource_id,
                                   waveform_id=pick.waveform_id)
            if pick.phase_hint == 'IAML':
                # Amplitude for local magnitude
                _amplitude.type = 'AML'
                # Set to be evaluating a point in the trace
                _amplitude.category = 'point'
                # Default AML unit in seisan is nm (Page 139 of seisan
                # documentation, version 10.0)
                _amplitude.generic_amplitude /= 1e9
                _amplitude.unit = 'm'
                _amplitude.magnitude_hint = 'ML'
            else:
                # Generic amplitude type
                _amplitude.type = 'A'
            if snr:
                _amplitude.snr = snr
            new_event.amplitudes.append(_amplitude)
        elif _int_conv(line[28:33]) is not None:
            # Create an amplitude instance for code duration also
            _amplitude = Amplitude(generic_amplitude=_int_conv(line[28:33]),
                                   pick_id=pick.resource_id,
                                   waveform_id=pick.waveform_id)
            # Amplitude for coda magnitude
            _amplitude.type = 'END'
            # Set to be evaluating a point in the trace
            _amplitude.category = 'duration'
            _amplitude.unit = 's'
            _amplitude.magnitude_hint = 'Mc'
            if snr is not None:
                _amplitude.snr = snr
            new_event.amplitudes.append(_amplitude)
        # Create new obspy.event.Arrival class referencing above Pick
        if _float_conv(line[33:40]) is None:
            arrival = Arrival(phase=pick.phase_hint, pick_id=pick.resource_id)
            if weight is not None:
                arrival.time_weight = weight
            if _int_conv(line[60:63]) is not None:
                arrival.backazimuth_residual = _int_conv(line[60:63])
            if _float_conv(line[63:68]) is not None:
                arrival.time_residual = _float_conv(line[63:68])
            if _float_conv(line[70:75]) is not None:
                arrival.distance = kilometers2degrees(_float_conv(line[70:75]))
            if _int_conv(line[76:79]) is not None:
                arrival.azimuth = _int_conv(line[76:79])
            new_event.origins[0].arrivals.append(arrival)
        new_event.picks.append(pick)
    return new_event
コード例 #4
0
def __toAmplitude(parser, el):
    """
    """
    amp = Amplitude()
    amp.resource_id = ResourceIdentifier(
        prefix="/".join([RESOURCE_ROOT, "amplitude"]))

    if CURRENT_TYPE == "obspyck":
        amp.method_id = "%s/amplitude_method/obspyck/1" % RESOURCE_ROOT
    else:
        msg = "encountered non-obspyck amplitude!"
        raise Exception(msg)

    amp.generic_amplitude, amp.generic_amplitude_errors = \
        __toFloatQuantity(parser, el, "genericAmplitude")

    amp.unit = parser.xpath2obj('unit', el, str)

    waveform = el.xpath("waveform")[0]
    network = waveform.get("networkCode")
    station = fix_station_name(waveform.get("stationCode"))
    # Map some station names.
    if station in STATION_DICT:
        station = STATION_DICT[station]
    if not network:
        network = NETWORK_DICT[station]

    location = waveform.get("locationCode") or ""
    channel = waveform.get("channelCode") or ""
    amp.waveform_id = WaveformStreamID(
        network_code=network,
        station_code=station,
        channel_code=channel,
        location_code=location)

    # Amplitudes without generic_amplitude are not quakeml conform
    if amp.generic_amplitude is None:
        print ("Amplitude has no generic_amplitude value and is "
               "ignored: %s" % station)
        return None

    # generate time_window
    amp.time_window = TimeWindow()
    t_min = parser.xpath2obj('timeWindow/reference', el, UTCDateTime)
    t_max = t_min + parser.xpath2obj('timeWindow/end', el, float)
    dt_abs = abs(t_max - t_min)
    amp.time_window.reference = t_min
    if t_min < t_max:
        amp.time_window.begin = 0.0
        amp.time_window.end = dt_abs
    else:
        amp.time_window.begin = dt_abs
        amp.time_window.end = 0.0

    # we have so far saved frequency in Hz as "period" tag
    # use two times dt instead
    ##amp.period = 1.0 / parser.xpath2obj('period', el, float)
    amp.period = 2.0 * dt_abs

    t = ("PGV; reference time is time of minimum amplitude. if minimum comes "
         "before maximum, start is 0 and end is relative time of maximum. "
         "otherwise end is 0, start is relative time of minimum.")
    comment = Comment(force_resource_id=False, resource_id=None, text=t)
    amp.comments.append(comment)

    return amp
コード例 #5
0
ファイル: bulletin.py プロジェクト: Brtle/obspy
    def _parse_arrivals(self, event, origin, origin_res_id):
        # Skip header of arrivals
        next(self.lines)

        # Stop the loop after 2 empty lines (according to the standard).
        previous_line_empty = False

        for line in self.lines:
            line_empty = not line or line.isspace()

            if not self.event_point_separator:
                # Event are separated by two empty lines
                if line_empty and previous_line_empty:
                    break
            else:
                # Event are separated by '.'
                if line.startswith('.'):
                    break

            previous_line_empty = line_empty

            if line_empty:
                # Skip empty lines when the loop should be stopped by
                # point
                continue

            magnitude_types = []
            magnitude_values = []

            fields = self.fields['arrival']

            station = line[fields['sta']].strip()
            distance = line[fields['dist']].strip()
            event_azimuth = line[fields['ev_az']].strip()
            evaluation_mode = line[fields['picktype']].strip()
            direction = line[fields['direction']].strip()
            onset = line[fields['detchar']].strip()
            phase = line[fields['phase']].strip()
            time = line[fields['time']].strip().replace('/', '-')
            time_residual = line[fields['t_res']].strip()
            arrival_azimuth = line[fields['azim']].strip()
            azimuth_residual = line[fields['az_res']].strip()
            slowness = line[fields['slow']].strip()
            slowness_residual = line[fields['s_res']].strip()
            time_defining_flag = line[fields['t_def']].strip()
            azimuth_defining_flag = line[fields['a_def']].strip()
            slowness_defining_flag = line[fields['s_def']].strip()
            snr = line[fields['snr']].strip()
            amplitude_value = line[fields['amp']].strip()
            period = line[fields['per']].strip()
            magnitude_types.append(line[fields['mag_type_1']].strip())
            magnitude_values.append(line[fields['mag_1']].strip())
            magnitude_types.append(line[fields['mag_type_2']].strip())
            magnitude_values.append(line[fields['mag_2']].strip())
            line_id = line[fields['id']].strip()

            # Don't take pick and arrival with wrong time residual
            if '*' in time_residual:
                continue

            try:
                pick = Pick()
                pick.creation_info = self._get_creation_info()
                pick.waveform_id = WaveformStreamID()
                pick.waveform_id.station_code = station
                pick.time = UTCDateTime(time)

                network_code = self.default_network_code
                location_code = self.default_location_code
                channel_code = self.default_channel_code

                try:
                    network_code, channel = self._get_channel(station,
                                                              pick.time)
                    if channel:
                        channel_code = channel.code
                        location_code = channel.location_code
                except TypeError:
                    pass

                pick.waveform_id.network_code = network_code
                pick.waveform_id.channel_code = channel_code
                if location_code:
                    pick.waveform_id.location_code = location_code

                try:
                    ev_mode = EVALUATION_MODES[evaluation_mode]
                    pick.evaluation_mode = ev_mode
                except KeyError:
                    pass
                try:
                    pick.polarity = PICK_POLARITIES[direction]
                except KeyError:
                    pass
                try:
                    pick.onset = PICK_ONSETS[onset]
                except KeyError:
                    pass
                pick.phase_hint = phase
                try:
                    pick.backazimuth = float(arrival_azimuth)
                except ValueError:
                    pass
                try:
                    pick.horizontal_slowness = float(slowness)
                except ValueError:
                    pass

                public_id = "pick/%s" % line_id
                pick.resource_id = self._get_res_id(public_id)
                event.picks.append(pick)
            except (TypeError, ValueError, AttributeError):
                # Can't parse pick, skip arrival and amplitude parsing
                continue

            arrival = Arrival()
            arrival.creation_info = self._get_creation_info()

            try:
                arrival.pick_id = pick.resource_id.id
            except AttributeError:
                pass
            arrival.phase = phase
            try:
                arrival.azimuth = float(event_azimuth)
            except ValueError:
                pass
            try:
                arrival.distance = float(distance)
            except ValueError:
                pass
            try:
                arrival.time_residual = float(time_residual)
            except ValueError:
                pass
            try:
                arrival.backazimuth_residual = float(azimuth_residual)
            except ValueError:
                pass
            try:
                arrival.horizontal_slowness_residual = float(slowness_residual)
            except ValueError:
                pass

            if time_defining_flag == 'T':
                arrival.time_weight = 1

            if azimuth_defining_flag == 'A':
                arrival.backazimuth_weight = 1

            if slowness_defining_flag == 'S':
                arrival.horizontal_slowness_weight = 1

            public_id = "arrival/%s" % line_id
            arrival.resource_id = self._get_res_id(public_id,
                                                   parent_res_id=origin_res_id)
            origin.arrivals.append(arrival)

            try:
                amplitude = Amplitude()
                amplitude.creation_info = self._get_creation_info()
                amplitude.generic_amplitude = float(amplitude_value)
                try:
                    amplitude.pick_id = pick.resource_id
                    amplitude.waveform_id = pick.waveform_id
                except AttributeError:
                    pass
                try:
                    amplitude.period = float(period)
                except ValueError:
                    pass
                try:
                    amplitude.snr = float(snr)
                except ValueError:
                    pass

                for i in [0, 1]:
                    if magnitude_types[i] and not magnitude_types[i].isspace():
                        amplitude.magnitude_hint = magnitude_types[i]

                public_id = "amplitude/%s" % line_id
                amplitude.resource_id = self._get_res_id(public_id)
                event.amplitudes.append(amplitude)

                for i in [0, 1]:
                    sta_mag = StationMagnitude()
                    sta_mag.creation_info = self._get_creation_info()
                    sta_mag.origin_id = origin_res_id
                    sta_mag.amplitude_id = amplitude.resource_id
                    sta_mag.station_magnitude_type = magnitude_types[i]
                    sta_mag.mag = magnitude_values[i]
                    public_id = "magnitude/station/%s/%s" % (line_id, i)
                    sta_mag.resource_id = self._get_res_id(public_id)
                    event.station_magnitudes.append(sta_mag)
            except ValueError:
                pass
コード例 #6
0
ファイル: mchedr.py プロジェクト: bonaime/obspy
    def _parse_record_p(self, line, event):
        """
        Parses the 'primary phase record' P

        The primary phase is the first phase of the reading,
        regardless its type.
        """
        station = line[2:7].strip()
        phase = line[7:15]
        arrival_time = line[15:24]
        residual = self._float(line[25:30])
        # unused: residual_flag = line[30]
        distance = self._float(line[32:38])  # degrees
        azimuth = self._float(line[39:44])
        backazimuth = round(azimuth % -360 + 180, 1)
        mb_period = self._float(line[44:48])
        mb_amplitude = self._float(line[48:55])  # nanometers
        mb_magnitude = self._float(line[56:59])
        # unused: mb_usage_flag = line[59]

        origin = event.origins[0]
        evid = event.resource_id.id.split('/')[-1]
        waveform_id = WaveformStreamID()
        waveform_id.station_code = station
        # network_code is required for QuakeML validation
        waveform_id.network_code = '  '
        station_string = \
            waveform_id.get_seed_string()\
            .replace(' ', '-').replace('.', '_').lower()
        prefix = '/'.join((res_id_prefix, 'waveformstream',
                           evid, station_string))
        waveform_id.resource_uri = ResourceIdentifier(prefix=prefix)
        pick = Pick()
        prefix = '/'.join((res_id_prefix, 'pick', evid, station_string))
        pick.resource_id = ResourceIdentifier(prefix=prefix)
        date = origin.time.strftime('%Y%m%d')
        pick.time = UTCDateTime(date + arrival_time)
        # Check if pick is on the next day:
        if pick.time < origin.time:
            pick.time += timedelta(days=1)
        pick.waveform_id = waveform_id
        pick.backazimuth = backazimuth
        onset = phase[0]
        if onset == 'e':
            pick.onset = 'emergent'
            phase = phase[1:]
        elif onset == 'i':
            pick.onset = 'impulsive'
            phase = phase[1:]
        elif onset == 'q':
            pick.onset = 'questionable'
            phase = phase[1:]
        pick.phase_hint = phase.strip()
        event.picks.append(pick)
        if mb_amplitude is not None:
            amplitude = Amplitude()
            prefix = '/'.join((res_id_prefix, 'amp', evid, station_string))
            amplitude.resource_id = ResourceIdentifier(prefix=prefix)
            amplitude.generic_amplitude = mb_amplitude * 1E-9
            amplitude.unit = 'm'
            amplitude.period = mb_period
            amplitude.type = 'AB'
            amplitude.magnitude_hint = 'Mb'
            amplitude.pick_id = pick.resource_id
            amplitude.waveform_id = pick.waveform_id
            event.amplitudes.append(amplitude)
            station_magnitude = StationMagnitude()
            prefix = '/'.join((res_id_prefix, 'stationmagntiude',
                               evid, station_string))
            station_magnitude.resource_id = ResourceIdentifier(prefix=prefix)
            station_magnitude.origin_id = origin.resource_id
            station_magnitude.mag = mb_magnitude
            # station_magnitude.mag_errors['uncertainty'] = 0.0
            station_magnitude.station_magnitude_type = 'Mb'
            station_magnitude.amplitude_id = amplitude.resource_id
            station_magnitude.waveform_id = pick.waveform_id
            res_id = '/'.join(
                (res_id_prefix, 'magnitude/generic/body_wave_magnitude'))
            station_magnitude.method_id = \
                ResourceIdentifier(id=res_id)
            event.station_magnitudes.append(station_magnitude)
        arrival = Arrival()
        prefix = '/'.join((res_id_prefix, 'arrival', evid, station_string))
        arrival.resource_id = ResourceIdentifier(prefix=prefix)
        arrival.pick_id = pick.resource_id
        arrival.phase = pick.phase_hint
        arrival.azimuth = azimuth
        arrival.distance = distance
        arrival.time_residual = residual
        res_id = '/'.join((res_id_prefix, 'earthmodel/ak135'))
        arrival.earth_model_id = ResourceIdentifier(id=res_id)
        origin.arrivals.append(arrival)
        origin.quality.minimum_distance = min(
            d for d in (arrival.distance, origin.quality.minimum_distance)
            if d is not None)
        origin.quality.maximum_distance = \
            max(arrival.distance, origin.quality.minimum_distance)
        origin.quality.associated_phase_count += 1
        return pick, arrival