The Next Generation GSN Field System
With the recognition that the acquisition systems of the GSN age, a long-term project to sustain the GSN by upgrading the field electronics to a new generation was initiated. The new design, developed jointly by the GSN network operators (USGS Albuquerque Seismological Laboratory and Project IDA), incorporates a sensor interface box and power distribution module with the Quanterra Q330HR data acquisition system (DAS). The NGS standardizes the stations of the Global Seismographic Network between the network operators, allowing more uniform installation, operation and maintenance techniques for the network (click here for instrumentation information). In addition to the DAS and interface items, we are taking the opportunity to upgrade power, communications, sensor systems and basic site infrastructure during the upgrade visits. The end goal is to not only enhance the operational performance of the GSN, but improve data quality at the same time.
With funds from the US Geological Survey made available under the American Recovery and Reinvestment Act of 2009 and augmentation funding to IRIS from the National Science Foundation, the GSN has procured all the necessary components to upgrade the remaining stations to NGS and will accelerate the installation of these systems over the next two years. Rollout of the new systems across the entire GSN is estimated to be completed by the end of 2013.
The following links provide more detailed information on the Next Generation System (NGS) rollout: