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A New Tool to Integrate Instrument Responses From Seismological Databases Into Python Workflows

Instrument response files referenced and stored in CSS3.0, KBCore, and similarly structured databases follow a file format that predates the release of the CSS3.0 database schema in 1990, and these response files are often referred to as pazfir files. Pazfir files have changed slightly since 1990, with the most recent definition having been released in 2002 by the International Data Centre (IDC), and they are primarily used within the explosion monitoring community. However, the wider seismological community uses the RESP and StationXML formats released by the FDSN, and open-source tools, such as ObsPy, support these FDSN formats but not pazfir files, making them difficult to incorporate into modern workflows. A pazfir file reader has been developed to ingest response information available from the appropriate database tables, read in the file with some basic QC, and output an ObsPy Response object. The Response object can then be attached to waveforms extracted from the database, allowing researchers to use ObsPy’s response removal functions either to return a waveform in units of ground motion or pressure or to incorporate it into a StationXML file. This pazfir reader will allow researchers to fully retrieve and incorporate data and metadata from these databases into Python workflows or file formats usable by community-supported tools through its inclusion in Pisces (https://github.com/LANL-Seismoacoustics/pisces) an open-source python package available on GitHub from Los Alamos National Laboratory that was developed to facilitate the integration of data from CSS3.0 and KBCore databases into Python-based geophysical analysis workflows.

Session: Advancements in Forensic Seismology and Explosion Monitoring [Poster Session]

Type: Poster

Room: Exhibit Hall

Date: 5/2/2024

Presentation Time: 08:00 AM (local time)

Presenting Author: Christine Gammans

Student Presenter: No

Additional Authors