Processing and Review Interface for Strong Motion Data: Prism Software Version 2.0

Date: 4/24/2019

Time: 06:00 PM

Room: Grand Ballroom

Processing and Review Interface for Strong Motion data (PRISM) software (Jones et al. 2017) was developed by the National Strong Motion Project (NSMP) of the U.S. Geological Survey (USGS). PRISM can be used in combination with the Advanced National Seismic System Quake Monitoring System (AQMS) to provide automated processing of strong-motion records, or it can be used in stand-alone mode to perform batch-processing. PRISM is Java based and open source. The software can be installed and run on common operating systems, including Linux, OS X, and Windows. The software consists of two major components – 1) a record processing engine composed of core processing modules, and 2) a graphical user interface (GUI) review tool for manual review, edit, and processing. PRISM is currently limited to handling only data in the Consortium of Organizations for Strong-Motion Observation Systems (COSMOS) V0 format. Thus, all retrieved acceleration time series data need to be converted to this format in order to be used in PRISM. COSMOS-formatted output products generated from PRISM processing include V1 (raw acceleration time series in physical units with mean removed), V2 (baseline-corrected and filtered acceleration, velocity, and displacement time series), and V3 (response spectra, Fourier amplitude spectra, and other common earthquake-engineering intensity measures). PRISM version 2.0, which is currently in development, will include several new signal processing algorithms and additional features, including 1) frequency-domain integration, 2) frequency-domain decimation, 3) de-spiking, 4) signal-to-noise ratio computation, and 5) auto-detecting band pass-filter corner frequencies.

Presenting Author: Erol Kalkan

Authors