With pywatershed version 1.0.0, we have faithfully reproduced the [Precipitation-Runoff Modeling System (PRMS, Markstrom et al., 2015)](https://www.usgs.gov/software/precipitation-runoff-modeling-system-prms) process representations used in the USGS [National Hydrological Model](https://pubs.usgs.gov/publication/tm6B9) (NHM, Regan et al., 2018). For more information, see the [extended release notes](https://ec-usgs.github.io/pywatershed/2023/12/18/v1-0-0-overview) for version 1.0.0.
Links
[USGS Homepage](https://www.usgs.gov/pywatershed-a-hydrologic-model-python)
[Documentation](https://pywatershed.readthedocs.io/)
[Extended release notes](https://ec-usgs.github.io/pywatershed/2023/12/18/v1-0-0-overview)
["What's new" changelog](https://pywatershed.readthedocs.io/en/main/whats-new.html)
[ASV benchmarks](https://ec-usgs.github.io/pywatershed/asv/v1-0-0)
Frozen Conda Environments for Python 3.10 (also in assets)
[Windows](https://github.com/EC-USGS/pywatershed/releases/download/1.0.0/pywatershed_conda_export_windows_v1_0_0.txt)
[MacOS Intel](https://github.com/EC-USGS/pywatershed/releases/download/1.0.0/pywatershed_conda_export_macos_intel_v1_0_0.txt)
[MacOS Apple Silicon](https://github.com/EC-USGS/pywatershed/releases/download/1.0.0/pywatershed_conda_export_macos_apple_silicon_v1_0_0.txt)
References
* [Markstrom, S. L., Regan, R. S., Hay, L. E., Viger, R. J., Webb, R. M., Payn, R. A., & LaFontaine, J. H. (2015). PRMS-IV, the precipitation-runoff modeling system, version 4 (No. 6-B7). US Geological Survey.](https://pubs.usgs.gov/tm/6b7/)
* [Regan, R. S., Markstrom, S. L., Hay, L. E., Viger, R. J., Norton, P. A., Driscoll, J. M., & LaFontaine, J. H. (2018). Description of the national hydrologic model for use with the precipitation-runoff modeling system (prms) (No. 6-B9). US Geological Survey.](https://pubs.usgs.gov/publication/tm6B9)