New advanced seismic station ready
Guralp Systems has designed and delivered a complete bespoke seismic station for a remote Arctic location, using Guralp instruments distributed over several sites and utilising the latest communications and networking technologies.
The new instrument sites use the latest evolution of Guralp Systems’ CMG-3TB borehole seismometer, together with downhole CMG-DM24 digitizers and CMG-AM authentication modules, allowing seismic events to be measured, digitized and authenticated at source. The station is fully networked using the latest wired and radio networking technologies, and is CD1.0, CD1.1 and AMS2.0 compliant. Data flow is managed from a central array concentrator rack, based on a pair of dedicated CMG-DCM units.
The photos show, above, the 12 sets of borehole instruments and digitizer/authenticator units being tested at the Guralp Systems factory prior to shipping, and below, the array concentrator rack which collects incoming data streams and forwards them on to a CD1.1 receiver over redundant wireless links.
Redundant backup modules in both data and power distribution systems provide a resilient backbone for the system, much of which can be maintained and configured without requiring physical access to the installations.