Some errors arise when I use massdownloader, which causes the data to be incomplete. Can I prevent these issues and download all the data? If not, are there any ways to print out the messages about the missing data (e.g.,. network.station.channel)? Thank you! I attached my code and errors below.
import obspy from obspy.clients.fdsn.mass_downloader import RectangularDomain, \ Restrictions, MassDownloader domain = RectangularDomain(minlatitude=42, maxlatitude=52, minlongitude=-132, maxlongitude=-120) # Define dt = 1 week = 7 days * 24 hrs * 60 mins * 60 seconds dt = 7 * 24 * 60 * 60 + 2 * 60 * 60 # ====================Loop through each mainshock=========================== for i in data: event_time = obspy.UTCDateTime(i) restrictions = Restrictions( starttime=event_time - dt, endtime=event_time + dt, # Chunk it to have one file per day. chunklength_in_sec=86400, # Considering the enormous amount of data associated with continuous # requests, you might want to limit the data based on SEED identifiers. # If the location code is specified, the location priority list is not # used; the same is true for the channel argument and priority list. network="NV,OO", channel="EHZ,HHZ", # The typical use case for such a data set are noise correlations where # gaps are dealt with at a later stage. reject_channels_with_gaps=False, # Same is true with the minimum length. All data might be useful. minimum_length=0.0, # Guard against the same station having different names. minimum_interstation_distance_in_m=100.0) # Restrict the number of providers if you know which serve the desired # data. If in doubt just don't specify - then all providers will be # queried. mdl = MassDownloader(providers=["IRIS"]) mdl.download(domain, restrictions, mseed_storage="waveform", stationxml_storage="station")
Most of time, it can download waveforms successfully, but sometimes, three types of errors arise which are:
obspy.clients.fdsn.mass_downloader - ERROR: Client 'IRIS' - Unknown Error (URLError): <urlopen error [Errno -3] Temporary failure in name resolution> obspy.clients.fdsn.mass_downloader - ERROR: Client 'IRIS' - timed out obspy.clients.fdsn.mass_downloader - ERROR: Client 'IRIS' - Unknown Error (URLError): <urlopen error [Errno -2] Name or service not known>
Thank you for your help!