2014 GSA Annual Meeting in Vancouver, British Columbia (1922 October 2014)
Paper No. 231-4
Presentation Time: 9:00 AM-6:30 PM

THE PLATE BOUNDARY OBSERVATORY CASCADIA NETWORK: DEVELOPMENT AND INSTALLATION OF A LARGE SCALE HIGH RATE REAL-TIME GPS NETWORK

AUSTIN, Kenneth1, BLUME, Frederick2, BERGLUND, Henry T.3, DITTMAN, Tim2, FEAUX, Karl2, GALLAHER, Warren4, HODGKINSON, Kathleen5, MATTIOLI, Glen S.6, MENCIN, David4, and WALLS, Christian P.2, (1) UNAVCO, 1902 E 14th Ave, Ellensburg, WA 98926, austin@unavco.org, (2) UNAVCO, Boulder, CO 80301, (3) UNAVCO, 6350 Nautilus Dr, Boulder, CO 80309, (4) PBO, UNAVCO, 6350 Nautilus Dr, Boulder, CO 80301, (5) Geodetic Data Services, UNAVCO, PASSCAL Building, 100 East Road, Socorro, NM 87801, (6) Geodetic Infrastructure and Earth & Env. Sciences, UNAVCO, Inc. and University of Texas at Arlington, 6350 Nautilus Dr, Boulder, CO 80301-5394

The EarthScope Plate Boundary Observatory (PBO), through a NSF-ARRA supplement, has enhanced the geophysical infrastructure in in the Pacific Northwest by upgrading 232 Plate Boundary Observatory GPS stations to allow the collection and distribution of high-rate (1 Hz), low-latency (<1 s) data streams (RT-GPS). These upgraded stations supplemented the original 100 RT-GPS stations in the PBO GPS network. The addition of the new RT-GPS sites in the Pacific Northwest should spur new volcano and earthquake research opportunities in an area of great scientific interest and high geophysical hazard. Streaming RT-GPS data will enable researchers to detect and investigate strong ground motion during large geophysical events, including a possible plate-interface earthquake, which has implications for earthquake hazard mitigation.

A total of 282 PBO stations were upgraded and added to the UNAVCO real-time GPS system, along with addition of 22 new meteorological instruments to existing PBO stations. Extensive testing of BGAN satellite communications systems has been conducted to support the Cascadia RT-GPS upgrades and the installation of three BGAN satellite fail over systems along the Cascadia margin will allow for the continuation of data flow in the event of a loss of primary communications during in a large geophysical event or other interruptions in commercial cellular networks. In summary, with these additional upgrades in the Cascadia region, the PBO RT-GPS network will increase to 420 stations. Upgrades to UNAVCO’s data infrastructure included evaluation and purchase of the Trimble Pivot Platform, servers, and additional hardware for archiving the high rate data. UNAVCO staff is working closely with the UNAVCO community to develop data standards, protocols, and a science plan for the use of RT-GPS data.

2014 GSA Annual Meeting in Vancouver, British Columbia (1922 October 2014)
General Information for this Meeting
Session No. 231--Booth# 390
Great Earthquakes, the Cascadia Subduction Zone, and Society (Posters)
Vancouver Convention Centre-West: Exhibition Hall C
9:00 AM-6:30 PM, Tuesday, 21 October 2014


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