HR: 1340h
AN: S53B-0212    [Abstracts]
TI: Automated Analysis of Seismic Data Quality at the IRIS DMC
AU: * Weertman, B R
EM: bruce@iris.washington.edu
AF: IRIS Data Management Ctr, 1408 NE 45th Street Suite 201, Seattle, WA 98117 United States
AB: We present an automatic quality control system (QUACK) that monitors seismic data flowing into the IRIS DMC BUD (Buffer of Uniform Data). The BUD currently receives 4,000+ seismic channels and records 12+ GB of data per day. With this automated system, problems within this large data set can be more easily identified. QUACK is written in Java and features a modular design that allows third parties to write quality control software "plug-ins" that measure custom quality parameters. QUACK stores the plug-in measurements in a relational database from which they can later be retrieved. Currently, we are running software plug-ins that measure or detect: data availability, daily signal mean and variance, timing problems, PSD noise levels, and dead and missing channels. QUACK consists of three primary software components: (1) a framework which orchestrates the operation of the software plug-ins, (2) a reporting mechanism which sends daily e-mails to system operators reporting data issues discovered by the plug-ins and (3) a web-based query tool which allows users to explore different aspects of the recorded quality control measurements.
UR: http://www.iris.washington.edu/
DE: 0902 Computational methods, seismic
DE: 0910 Data processing
SC: Seismology [S]
MN: 2004 AGU Fall Meeting