fdsn datadownload

FDSN-data-download.ipynb

@@ -23,30 +23,25 @@
     "from pyrocko.fdsn import ws\n",
     "from pyrocko import util, io, trace\n",
     "\n",
-    "\n",
     "# select time range\n",
     "tmin = util.stt('2015-09-16 22:54:33')\n",
     "tmax = util.stt('2015-09-17 00:54:33')\n",
     "\n",
     "# select networkID, StationID, Location, Channel\n",
-    "# asterisk '*' as wildcard is possible\n",
+    "# use asterisk '*' as wildcard\n",
     "selection = [('X9', '*', '*', 'HHZ', tmin, tmax)] \n",
-    "# Example above: Select restricted network X9, all stations, all locations,\n",
-    "# vertikal component only, 80Hz\n",
     "\n",
-    "# Read access-token for the restricted network from file \n",
-    "token=open('token.asc', 'rb').read()   # 'rb' required for unicode to byte conversion\n",
+    "# Read access-token for the restricted network from file as 'rb' for binary\n",
+    "token=open('token.asc', 'rb').read()\n",
     "\n",
     "# setup a waveform data request\n",
-    "request_waveform = ws.dataselect(site='geofon',selection=selection,token=token)\n",
-    "\n",
-    "# Instead of the token, username and password can be given explicitely via:\n",
-    "# request_waveform = ws.dataselect(site='geofon',selection=selection,user=user,passwd=passwd)\n",
-    "# where 'user' and 'passwd' are to be entered as strings.\n",
+    "request_waveform = ws.dataselect(site='geofon', selection=selection, token=token)\n",
     "\n",
+    "# Alternative method using username and password instead of token:\n",
+    "# request_waveform = ws.dataselect(site='geofon', selection=selection, user='user', passwd='passwd')\n",
     "\n",
-    "# write the incoming data stream to 'traces.mseed'\n",
-    "with open('traces.mseed', 'wb') as file:         # 'wb' - same reason as 'rb' above\n",
+    "# write the incoming data stream to 'traces.mseed' as 'wb' for binary\n",
+    "with open('traces.mseed', 'wb') as file:\n",
     "    file.write(request_waveform.read())"
    ]
   }