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[refs #200] use distance in kilometres

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ObsPy provides the epicentral distance in degree if the event information are read from a NLLoc hyp-file. To calculate the correct moment magnitude values it is essential to have the distance in kilometres instead.
This commit is contained in:
Sebastian Wehling-Benatelli 2016-09-07 11:05:10 +02:00
parent 12641f8d52
commit f6d05dd2cc
1 changed files with 17 additions and 14 deletions
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31
QtPyLoT.py
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@ -39,6 +39,7 @@ from PySide.QtGui import QMainWindow, QInputDialog, QIcon, QFileDialog, \
import numpy as np
import subprocess
from obspy import UTCDateTime
from obspy.geodetics import degrees2kilometers
from obspy.core.event import Magnitude
from pylot.core.analysis.magnitude import calcsourcespec, calcMoMw
@ -955,27 +956,29 @@ class MainWindow(QMainWindow):
if e.origins:
o = e.origins[0]
mags = dict()
fninv = settings.value("inventoryFile", None)
if fninv is None:
fninv, _ = QFileDialog.getOpenFileName(self, self.tr(
"Select inventory..."), self.tr("Select file"))
ans = QMessageBox.question(self, self.tr("Make default..."),
self.tr(
"New inventory filename set.\n" + \
"Do you want to make it the default value?"),
QMessageBox.Yes | QMessageBox.No,
QMessageBox.No)
if ans == QMessageBox.Yes:
settings.setValue("inventoryFile", fninv)
settings.sync()
for a in o.arrivals:
pick = a.pick_id.get_referred_object()
station = pick.waveform_id.station_code
wf = self.get_data().getWFData().select(station=station)
onset = pick.time
fninv = settings.value("inventoryFile", None)
if fninv is None:
fninv, _ = QFileDialog.getOpenFileName(self, self.tr(
"Select inventory..."), self.tr("Select file"))
ans = QMessageBox.question(self, self.tr("Make default..."),
self.tr("New inventory filename set.\n" + \
"Do you want to make it the default value?"),
QMessageBox.Yes | QMessageBox.No,
QMessageBox.No)
if ans == QMessageBox.Yes:
settings.setValue("inventoryFile", fninv)
settings.sync()
w0, fc = calcsourcespec(wf, onset, fninv, 3000., a.distance,
dist = degrees2kilometers(a.distance)
w0, fc = calcsourcespec(wf, onset, fninv, 3000., dist,
a.azimuth, a.takeoff_angle,
"300f**0.8", 0)
stat_mags = calcMoMw(wf, w0, 2700., 3000., a.distance, fninv)
stat_mags = calcMoMw(wf, w0, 2700., 3000., dist, fninv)
mags[station] = stat_mags
mag = np.median([M[1] for M in mags.values()])
return Magnitude(mag=mag, magnitude_type='Mw')