Data Services Newsletter

Volume 14 : No 1 : Spring 2012

PQLX v2011.365

Released February 13, 2012

PQLX (PASSCAL Quick Look eXtended) is open-source software authored by Richard Boaz (Boaz Consultancy) for evaluating seismic station performance and data quality. Given waveform data and instrument response files, PQLX server calculates trace statistics, Power Spectral Densities (PSD), and Probability Density Functions (PDF) and writes the results to a MySQL database for quick access.


PQLX software page

by Rob Casey (IRIS Data Management Center)

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