HR: 1340h
AN: G13B-1222    [Abstracts]
TI: An EarthScope Plate Boundary Observatory Progress Report
AU: * Jackson, M
EM: jackson@unavco.org
AF: Michael Jackson, 6350 Nautilus Drive, Boulder, CO 80301, United States
AU: Anderson, G
EM: anderson@unavco.org
AF: Michael Jackson, 6350 Nautilus Drive, Boulder, CO 80301, United States
AU: Blume, F
EM: Blume@unavco.org
AF: Michael Jackson, 6350 Nautilus Drive, Boulder, CO 80301, United States
AU: Walls, C
EM: jackso@unavco.org
AF: Michael Jackson, 6350 Nautilus Drive, Boulder, CO 80301, United States
AU: Coyle, B
EM: coyle@unavco.org
AF: Michael Jackson, 6350 Nautilus Drive, Boulder, CO 80301, United States
AU: Feaux, K
EM: feaux@unavco.org
AF: Michael Jackson, 6350 Nautilus Drive, Boulder, CO 80301, United States
AU: Friesen, B
EM: Friesen@unavco.org
AF: Michael Jackson, 6350 Nautilus Drive, Boulder, CO 80301, United States
AU: Phillips, D
EM: phillips@unavco.org
AF: Michael Jackson, 6350 Nautilus Drive, Boulder, CO 80301, United States
AU: Hafner, K
EM: Hafner@unavco.org
AF: Michael Jackson, 6350 Nautilus Drive, Boulder, CO 80301, United States
AU: Johnson, W
EM: johnson@unavco.org
AF: Michael Jackson, 6350 Nautilus Drive, Boulder, CO 80301, United States
AU: Mencin, D
EM: mencin@unavco.org
AF: Michael Jackson, 6350 Nautilus Drive, Boulder, CO 80301, United States
AU: Pauk, B
EM: pauk@unavco.org
AF: Michael Jackson, 6350 Nautilus Drive, Boulder, CO 80301, United States
AU: Dittmann, T
EM: dittmann@unavco.org
AF: Michael Jackson, 6350 Nautilus Drive, Boulder, CO 80301, United States
AB: UNAVCO is building and operating the Plate Boundary Observatory (PBO), part of the NSF-funded EarthScope project to understand the structure, dynamics, and evolution of the North American continent. When complete in October 2008, the 875 GPS, 103 strain and seismic, and 28 tiltmeters stations will comprise the largest integrated geodetic and seismic network in United States and the second largest in the world. Data from the PBO network will facilitate research into plate boundary deformation with unprecedented scope and detail. As of 1 September 2007, UNAVCO had completed 680 PBO GPS stations and had upgraded 89% of the planned PBO Nucleus stations. Highlights of the past year's work include the expansion of the Alaska subnetwork to 95 continuously-operating stations, including coverage of Akutan and Augustine volcanoes and reconnaissance for future installations on Unimak Island; the installation of nine new stations on Mt. St. Helens; and the arrival of 33 permits for station installations on BLM land in Nevada. The Augustine network provided critical data on magmatic and volcanic processes associated with the 2005-2006 volcanic crisis, and has expanded to a total of 11 stations. Please visit http://pboweb.unavco.org/?pageid=3 for further information on PBO GPS network construction activities. As of September 2007, 41 PBO borehole stations had been installed and three laser strainmeter stations were operating, with a total of 60 borehole stations and 4 laser strainmeters expected by October 2007. In response to direction from the EarthScope community, UNAVCO installed a dense network of six stations along the San Jacinto Fault near Anza, California; installed three of four planned borehole strainmeter stations on Mt. St. Helens; and has densified coverage of the Parkfield area. Please visit http://pboweb.unavco.org/?pageid=8 for more information on PBO strainmeter network construction progress. The combined PBO/Nucleus GPS network provides 350 GB of raw standard rate data, with special downloads of more than 250 GB of high-rate GPS data following large earthquakes in Russia, Tonga, and Peru, as well as for community requests. The standard rate GPS data are processed routinely to generate data products including station position time series, velocity vectors, and related information, and all data products are available from the UNAVCO Facility archive. The PBO seismic network seismic network has provided 201 GB of raw data, which are available via Antelope and Earthworm from PBO and via the IRIS Data Management Center (DMC); we provide data to seismic networks operated from Caltech, UCSD, UCSB, University of Washington, and the Pacific Geosciences Center in Sidney, BC. The PBO strainmeter network has provided 93 GB of raw data, available in both raw native format and SEED format from the Northern California Earthquake Data Center and the IRIS DMC, along with higher-level products such as cleaned strain time series and related information. Please visit http://pboweb.unavco.org/gps_data and http://pboweb.unavco.org/strain_data for more information on PBO GPS and strainmeter/seismic data products, respectively.
UR: http://pboweb.unavco.org/
DE: 1294 Instruments and techniques
SC: Geodesy [G]
MN: 2007 Fall Meeting