HR: 0800h
AN: G21B-1264    [Abstracts]
TI: Plate Boundary Observatory GPS Data Analysis
AU: * Herring, T A
EM: tah@mit.edu
AF: Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 United States
AU: King, R
EM: rwk@chandler.mit.edu
AF: Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 United States
AU: McClusky, S
EM: simon@chandler.mit.edu
AF: Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 United States
AU: Murray, M
EM: mhmurray@seismo.bekerely.edu
AF: Berkeley Seismological Laboratory, 215 McCone Hall, University of California, Berkeley, CA 94720 United States
AU: Santillan, M
EM: marcelo@geology.cwu.edu
AF: Central Washington University, 400 E. University Way, Ellensburg, WA 98926 United States
AU: Melbourne, T
EM: tim@geology.cwu.edu
AF: Central Washington University, 400 E. University Way, Ellensburg, WA 98926 United States
AU: Anderson, G
EM: anderson@unavco.org
AF: UNAVCO, 6350 Nautilus Drive, Boulder, CO 80301 United States
AB: The Plate Boundary Observatory GPS data analysis centers (ACs) at the Berkeley Seismological Laboratory (BSL) and Central Washington University (CWU), and the analysis center coordinator (ACC) at the Massachusetts Institute of Technology began establishing the GPS processing centers on April 1, 2005. The PBO GPS data analyses will be operational on October 1, 2005, with the regular delivery of daily SINEX solution files with full covariance and time series files designed for ease of analysis and plotting. The initial results for the PBO analyses will start with data from January 1, 2004 and contain position time series for 209 PBO Nucleus stations, 17 IGS reference frame stations, 9 CORS stations (to bridge Alaska to the continental United States), and all PBO stations as they come on line. The first PBO site was ready on January 11, 2004. The PBO ACs routinely generate rapid orbit analyses (1-day latency), primarily to check data quality, and initial final orbit analyses with 6-13 day latency. The timing of the generation of these products is based on the availability of the International GNSS Service rapid and final orbit products. Currently, between 280 and 300 stations are included in these rapid analyses and typically 310-315 stations are in the final analyses. The initial testing of the analysis procedures shows median north and east daily root-mean-square (rms) scatters of 1.0-1.3 mm for horizontal positions for a network encompassing North America and Central Pacific. The median height rms scatter is 5 mm. This talk will show results and products being generated by the PBO ACs and ACC, and compare the results between the GIPSY (CWU) and GAMIT (BSL) processing.
DE: 1209 Tectonic deformation (6924)
DE: 1229 Reference systems
DE: 1240 Satellite geodesy: results (6929, 7215, 7230, 7240)
DE: 1241 Satellite geodesy: technical issues (6994, 7969)
DE: 1243 Space geodetic surveys
SC: Geodesy [G]
MN: Fall Meeting 2005