Expanded Instrumentation

In 2001-2002, the BSL purchased equipment for 5 BDSN stations, including STS-2 seismometers, Episensors, and Q4120 data loggers, and initiated efforts to identify potential sites, considering such factors as the current distribution of stations, private versus public property, location of power and telecommunications, and geologic materials. This equipment allowed the BSL to add two broadband stations in 2002-2003 (PACP and MNRC, Figure 3.1).

In the past year, the BSL continued the installation of a site at Alder Springs (GASB), California. This site has been under discussion for a number of years, initially as part of the National Tsunami Hazards Program.

The BSL also initiated the installation of a site near Pt. Reyes, California, at the Marconi Conference Center (MCCM). This site is partially funded by IRIS (part of the permanent component of USArray), USGS, and OES. The site will be completed in the fall 2005, with the installation of power and an ANSS VSAT system.

With the completion of GASB and MCCM, the BSL has installed 4 of the 5 sets of site equipment purchased in the first year of the CISN. The efforts at GASB and MCCM more fully described in Chapter 3.

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