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NHM-Assist

May 14, 2025

NHM-Assist is a collection of python workflows presented in Jupyter notebooks for evaluating, running and interpreting National Hydrologic Model (NHM) domains using pywatershed. NHM-Assist allows users to:

evaluate hydrofabric element connections such as hydrologic response unit connections to streamflow segments, segment routing order, and gage placement accuracy;
display NHM domain parameter values on interactive maps and plots;
run the NHM domain using pywatershed and create output for chosen variables;
display NHM domain output values, such as recharge or actual evapotranspiration, on interactive maps and plots; and
display simulated and observed streamflow for model gages on interactive plots.
Select interactive maps and plots generated by NHM-Assist are saved locally in .html format and displayed in a web browser.

Publication Year 2025
Title NHM-Assist
DOI 10.5066/P1NMW6US
Authors Adel E Haj, Matthew I Barker, Parker A Norton, James L Mccreight, Luka (Contractor) L. Ludden, Amelia M Snyder
Product Type Software Release
Record Source USGS Asset Identifier Service (AIS)
USGS Organization Washington Water Science Center
Rights This work is marked with CC0 1.0 Universal
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