Articles

Access to continuous validated data using FDSN webservices

You can access GEOSCOPE validated data through the FDSN web services implemented at the IPGP datacenter.

Web services URL: http://fdsnws.ipgp.fr/fdsnws/

Two web services are implemented:

• fdsn-dataselect :  http://fdsnws.ipgp.fr/fdsnws/dataselect/1/
• fdsn-station : http://fdsnws.ipgp.fr/fdsnws/station/1

  Some examples using the FDSN web services implemented at IPGP datacenter

More information about the FDSN web services on the FDSN web site: http://www.fdsn.org/webservices/

Acces to continuous validated data with the Arclink protocol

Arclink is a protocol used for seismological data exchange. The data requests are made by time windows. Allowed request types are currently WAVEFORM, RESPONSE, INVENTORY, ROUTING and QC. Data format of WAVEFORM and RESPONSE requests is SEED (Mini-SEED, dataless SEED, full SEED). Data format of INVENTORY, ROUTING and QC requests is XML.

More information about Arclink:
http://www.seiscomp3.org/wiki/doc/applications/arclink

To access GEOSCOPE data through the Arclink Protocol, use:

Note that  the TCP port 18001 must be open in your institution firewall.

There is two ways to access data using the Arclink protocol:

• You can use the tool arclink_fetch. You have to install this software on your computer, be careful, you need to have at least the '2014.066' realease of arclink_fetch:
  https://www.seiscomp3.org/download.html
  
    Some query examples using arclink_fetch

   

• You can use the Python language and the ObsPy library :
  

  ObsPy :: A Python Toolbox for seismological data processing : http://obspy.org/ ObsPy is an open-source project dedicated to provide a Python framework for processing seismological data. It provides parsers for common file formats and seismological signal processing routines which allow the manipulation of seismological time series.

  
    Some examples using the ObsPy library

Data from GEOSCOPE Network, code FDSN G, are available over several Data Centers by different methods.

At IRIS Data Center through the Web Services..