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ursa - A Python library for postfire debris-flow runout hazard assessments and research, version 1.0.0

February 5, 2026

Ursa is a python tool for the setup, management, and analysis of postfire debris-flow runout simulations. Ursa provides (1) a set of python functions that accomplish each phase of a hazard assessment workflow and (2) a Snakemake snakefile that uses the python functions to run the entire workflow.

Ursa is intended as a flexible tool for a particular purpose. It is not intended as a general or extensible software package.

Publication Year 2026
Title ursa - A Python library for postfire debris-flow runout hazard assessments and research, version 1.0.0
DOI 10.5066/P15CKL9J
Authors Katherine (Katy) R Barnhart, Alexander S Fruge
Product Type Software Release
Record Source USGS Asset Identifier Service (AIS)
USGS Organization Geologic Hazards Science Center
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