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72 lines
2.0 KiB
Plaintext
72 lines
2.0 KiB
Plaintext
{
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"cells": [
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Downloading restricted seismic waveform data (FDSN)"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"This examples shows how to download restricted waveform data from the Geofon database using a cryptograpghic token. \n",
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"A personal file `token.asc` is required for this example."
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"from pyrocko.fdsn import ws\n",
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"from pyrocko import util, io, trace\n",
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"\n",
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"# select time range\n",
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"tmin = util.stt('2015-09-16 22:54:33')\n",
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"tmax = util.stt('2015-09-17 00:54:33')\n",
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"\n",
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"# select networkID, StationID, Location, Channel\n",
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"# use asterisk '*' as wildcard\n",
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"selection = [('X9', '*', '*', 'HHZ', tmin, tmax)] \n",
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"\n",
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"# Read access-token for the restricted network from file as 'rb' for binary\n",
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"token=open('token.asc', 'rb').read()\n",
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"\n",
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"# setup a waveform data request\n",
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"request_waveform = ws.dataselect(site='geofon', selection=selection, token=token)\n",
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"\n",
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"# Alternative method using username and password instead of token:\n",
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"# request_waveform = ws.dataselect(site='geofon', selection=selection, user='user', passwd='passwd')\n",
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"\n",
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"# write the incoming data stream to 'traces.mseed' as 'wb' for binary\n",
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"with open('traces.mseed', 'wb') as file:\n",
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" file.write(request_waveform.read())"
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.7.3rc1"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 2
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}
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