HR: 15:10h
AN: G23A-07 [Abstracts]
TI: The Plate Boundary Observatory: Data Management Progress and Highlights
AU: * Anderson, G
EM: anderson@unavco.org
AF: UNAVCO, 6350 Nautilus Drive, Boulder, CO 80503, United States
AU: Blackman, B
EM: blackman@unavco.org
AF: UNAVCO, 6350 Nautilus Drive, Boulder, CO 80503, United States
AU: Eakins, J
EM: jeakins@unavco.org
AF: UNAVCO, 6350 Nautilus Drive, Boulder, CO 80503, United States
AU: Hodgkinson, K
EM: hodgkinson@unavco.org
AF: UNAVCO, 6350 Nautilus Drive, Boulder, CO 80503, United States
AU: Matykiewicz, J
EM: james@unavco.org
AF: UNAVCO, 6350 Nautilus Drive, Boulder, CO 80503, United States
AU: Boler, F
EM: boler@unavco.org
AF: UNAVCO, 6350 Nautilus Drive, Boulder, CO 80503, United States
AU: Beldyk, M
EM: beldyk@unavco.org
AF: UNAVCO, 6350 Nautilus Drive, Boulder, CO 80503, United States
AU: Henderson, B
EM: henderson@unavco.org
AF: UNAVCO, 6350 Nautilus Drive, Boulder, CO 80503, United States
AU: Hoyt, B
EM: hoyt@unavco.org
AF: UNAVCO, 6350 Nautilus Drive, Boulder, CO 80503, United States
AU: Lee, E
EM: elee@unavco.org
AF: UNAVCO, 6350 Nautilus Drive, Boulder, CO 80503, United States
AU: Persson, E
EM: persson@unavco.org
AF: UNAVCO, 6350 Nautilus Drive, Boulder, CO 80503, United States
AU: Smith, J
EM: jsmith@unavco.org
AF: UNAVCO, 6350 Nautilus Drive, Boulder, CO 80503, United States
AU: Torrez, D
EM: torrez@unavco.org
AF: UNAVCO, 6350 Nautilus Drive, Boulder, CO 80503, United States
AU: Wright, J
EM: wright@unavco.org
AF: UNAVCO, 6350 Nautilus Drive, Boulder, CO 80503, United States
AU: Jackson, M
EM: jackson@unavco.org
AF: UNAVCO, 6350 Nautilus Drive, Boulder, CO 80503, United States
AU: Meertens, C
EM: meertens@unavco.org
AF: UNAVCO, 6350 Nautilus Drive, Boulder, CO 80503, United States
AB:
The Plate Boundary Observatory (PBO), part of the NSF-funded EarthScope project, is designed to study the three-
dimensional strain field resulting from deformation across the active boundary zone between the Pacific and
North American plates in the western United States. To meet these goals, UNAVCO will install 880 continuous
GPS stations, 103 borehole strainmeter stations, 28 tiltmeters, and five laser strainmeters by October 2008, as
well as manage data for 209 previously existing continuous GPS stations and one laser strainmeter through the
PBO Nucleus project and 11 GPS stations installed by the USArray segment of EarthScope.
As of 1 September 2007, UNAVCO had completed 680 PBO GPS stations and had upgraded 89% of the planned
PBO Nucleus stations. Most of these stations return data to the UNAVCO Boulder Network Operations Center
(NOC) on a daily basis, with about 40 stations returning data on an hourly basis. Overall, the combined PBO and
Nucleus network has now provided almost 350 GB of raw standard rate data, which are routinely processed by
the PBO GPS Analysis Centers, at Central Washington University and the New Mexico Institute of Mining and
Technology, and the PBO GPS Analysis Center Coordinator at MIT. These groups create a range of GPS
products, including station position time series, GPS velocity vectors, and related information. As of September
2007, these centers processed data on a daily basis from about 920 stations; typical position uncertainties are
under 1.5 mm horizontally and 4 mm vertically. All PBO GPS data products are archived at and available from the
UNAVCO Facility, with a second archive at the IRIS Data Management Center (DMC). All these products may be
accessed via the PBO web page at http://pboweb.unavco.org/gps_data.
As part of PBO, UNAVCO will also install and operate the largest borehole seismic and strainmeter networks in
North America, as well as tiltmeters and laser strainmeters. As of September 2007, 41 PBO borehole stations
had been installed and three laser strainmeter stations were operating. Seismic data flow in real time to the
Boulder NOC for initial quality checks, and then to the IRIS DMC for final quality checks, archiving, and distribution;
all PBO seismic data flow is via the Antelope software suite. Strainmeter data flow hourly and daily to the Boulder
NOC and then to the Borehole Strainmeter Analysis Center in Socorro, New Mexico, and the Laser Strainmeter
Analysis Center at the University of California, San Diego. These groups transform the raw strainmeter
observations into cleaned individual strain gauge components; time series of shear, areal, and linear strain; and
related products. All strainmeter data products are archived at and available from the Northern California
Earthquake Data Center and the IRIS DMC, in both the native raw formats and SEED format; all seismic data
products are archived at and available from the IRIS DMC, in SEED format. By September 2007, the PBO seismic
network had provided more than 200 GB of raw data, and the PBO strainmeter network had provided almost 100
GB of raw data. Please visit http://pboweb.unavco.org/strain_data for more information on data products from the
PBO strainmeter and seismic networks.
UR: http://pboweb.unavco.org
DE: 1294 Instruments and techniques
DE: 1295 Integrations of techniques
DE: 1299 General or miscellaneous (1709)
SC: Geodesy [G]
MN: 2007 Fall Meeting