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USArray Quality Assurance: Enhancing Data Integrity and Accuracy

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Learn how USArray ensures high-quality seismic data, identifies issues, and provides solutions for consistent data quality. Automated metrics, synthetics, and reporting processes enhance network performance. Visit the link for station information and QA details.

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USArray Quality Assurance: Enhancing Data Integrity and Accuracy

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  1. USArray Quality Assurance Mary Templeton IRIS Data Management Center

  2. USArray • National Science Foundation Initiative: • Transportable Array (400 broadband stations)

  3. USArray • Reference Network (116 broadband stations)

  4. USArray • Flexible Array (2400-instrument pool for short-term targeted experiments)

  5. USArray Data • Transportable Array and Reference Network data receive QA:

  6. USArray Quality Assurance • Report problems that can be fixed • Document problems that cannot be fixed • Provide information so that others can characterize data quality

  7. USArray Quality Assurance • Spotting problems: • Automated Metrics • Synthetics: events and earth tides • Three analysts review: • waveforms • metadata • metrics & synthetics

  8. Automated Metrics • QUACK • Power Spectral Density (PSD) tools • hardware problems • instrument response issues • noise characterization

  9. Automated Metrics • Station Ranking (PSD weekly modes) • pinpoints anomalous stations

  10. Synthetics 2011/10/28 Central Peru, Mw=6.9 Earth tides • hardware problems • instrument response issues • phase, orientation errors

  11. USArray Quality Assurance • Reporting: • Reports and emails to network operators • Data Problem Reports • Performance Metrics • Station histories

  12. Data Quality Reporting data problem report station histories, and other QA info http://crunch.iris.washington.edu/stationinfo/_US-TA-StationList.shtml

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