HR: 1340h
AN: S13C-1446    [Abstracts]
TI: Development of the CISN Earthquake Early Warning Web Site: Establishing a Basis for Comparison of Algorithms
AU: Zeleznik, M
EM: zeleznik@sayasystems.com
AF: Saya Systems, 2963 E. 3175 S., Salt Lake Citer, UT 84109, United States
AU: * Maechling, P J
EM: maechlin@usc.edu
AF: Southern California Earthquake Center, 3571 Trousdale Parkway, Los Angeles, CA 90089, United States
AU: Wurman, G
EM: gwurman@seismo.berkeley.edu
AF: University of California, Berkeley, Department of Geophysics, Berkeley, CA 94720, United States
AU: Kireev, A
EM: alexei@seismo.berkeley.edu
AF: University of California, Berkeley, Department of Geophysics, Berkeley, CA 94720, United States
AU: Solanki, K
EM: solanki@gps.caltech.edu
AF: California Institute of Technology, 1200 E. California Blvd, Pasadean, CA 91125, United States
AU: Allen, R
EM: rallen@berkeley.edu
AF: University of California, Berkeley, Department of Geophysics, Berkeley, CA 94720, United States
AU: Neuhauser, D
EM: doug@seismo.berkeley.edu
AF: University of California, Berkeley, Department of Geophysics, Berkeley, CA 94720, United States
AU: Hauksson, E
EM: hauksson@gps.caltech.edu
AF: California Institute of Technology, 1200 E. California Blvd, Pasadean, CA 91125, United States
AU: Hellweg, P
EM: peggy@seismo.berkeley.edu
AF: University of California, Berkeley, Department of Geophysics, Berkeley, CA 94720, United States
AU: Cua, G
EM: georgia.cua@sed.ethz.ch
AF: ETH Zurich, Raemistrasse 101, Zurich, 8092, Switzerland
AU: Heaton, T
EM: heaton@caltech.edu
AF: California Institute of Technology, 1200 E. California Blvd, Pasadean, CA 91125, United States
AU: Jordan, T H
EM: tjordan@usc.edu
AF: Saya Systems, 2963 E. 3175 S., Salt Lake Citer, UT 84109, United States
AB: As a part of the California Integrated Seismic Network (CISN) earthquake early warning (EEW) algorithm development, we have developed the CISN EEW web site to collect the results of multiple EEW algorithms and to display the algorithm results in a comparative manner. The CISN web site provides a time-based query capability which allows users to specify a time-window of interest. The CISN EEW web site can then produce a time-based display which shows all available algorithm results for the specified time window. These time-based plots provide a means of comparing algorithm performance and results. The CISN EEW web site developers have designed an XML-based data-exchange format which represents a common data format in which all the CISN EEW algorithm developers can format their results, and a data transfer mechanism for moving the data from the real-time network centers to non-real-time web site hosts. Incoming EEW data sets are automatically discovered by the web site processing system and entered into a data-management database at which time the data are available for discovery and display through the web site's query tools. The CISN web site is one part of a larger program of algorithm evaluation currently underway by CISN EEW algorithm development groups. The CISN EEW program of algorithm evaluation includes definition of common EEW algorithm data exchange formats, the establishment of a collection point for EEW algorithm results, and the development of web- based tools for comparing these results. Further techniques for comparing and evaluating the performance of EEW algorithms are under development by the group and will be implemented on the web site when available.
UR: http://www.scec.org/eew
DE: 0594 Instruments and techniques
DE: 7209 Earthquake dynamics (1242)
DE: 7223 Earthquake interaction, forecasting, and prediction (1217, 1242)
DE: 7260 Theory
DE: 7294 Seismic instruments and networks (0935, 3025)
SC: Seismology [S]
MN: 2007 Fall Meeting