CALIFORNIA INSTITUTE OF TECHNOLOGY
This proposal requests Government Furnished Equipment (GFE), funding for installing this equipment and other upgrades of the Southern California Seismographic Network (SCSN), a cooperative project of Caltech and the Pasadena office of the U. S. Geological Survey (USGS). The SCSN is the modern digital ground motion seismic network in southern California that monitors seismicity and provides real-time earthquake information products such as ShakeMap. The SCSN has evolved through the years and
now consists of several well-integrated components such as Short-Period analog, TERRAScope, TriNet, and real-time strong motion stations. We propose to upgrade some of these components. To strengthen the ability of SCSN to meet the ANSS performance standards, we propose to install GFE and to carry out the following upgrades and improvements of the various components of the SCSN: 1) Upgrade of 7 TERRAscope stations 2) Upgrade of 131 TriNet stations 3) Upgrade of SCSN metadata capabiliti
es 4) Upgrade of FtScottyHub for both seismic and GPS data 5) Add new baler-44 to 40 existing Q330 dataloggers These upgrades will enable the SCSN to meet the ANSS Performance Standards more consistently than before. The new equipment will improve station uptimes and reduce maintenance costs. The new equipment will also provide improved waveform data quality and consequently superior data products. The data gaps due to various outages will be minimized, and late data will be readily av
ailable through retrieval from on-site storage. Compared to the outdated equipment, the new equipment will speed up data delivery by about 10 sec, which is fast enough for earthquake early warning applications. The new equipment also has about a factor of ten lower consumption of power. We also propose to upgrade production, testing, and availability of SCSN metadata. We propose to improve existing software to facilitate the update of metadata, and to improve the interoperability between S
eisNetWatch and our database of metadata. These upgrades, will greatly improve the robustness of the SCSN, and facilitate higher quality and more reliable station metadata than was available before in southern California. This effort will be coordinated with other ANSS partners. The improved software will also be made available to other ANSS partners as part of the CISN software distribution. The upgrade of the SCSN will contribute to the goals of the ARRA program. We propose to employ 2
.5 new staff and one existing staff for the 24 months duration of the project. Current SCSN staff members will also work on this project as needed. The updated SCSN will contribute to economic resilience following a major earthquake by providing accurate earthquake information, and thus facilitate rapid business resumption. Further, advances in seismological research will be facilitated by the high quality seismic data that will be collected in one of the most seismically active areas in the
US outside of Alaska.