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PyNdat: Python National Drought Analysis Tool

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Created:	Aug 31, 2026 at 2:13 a.m. (UTC)
Last updated:	Aug 31, 2026 at 5:31 a.m. (UTC)
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Content types:	Single File Content

Sharing Status:	Public
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Abstract

PyNdat is an open-source Python package that supports CIROH research-to-operations (R2O) efforts by enabling multi-year streamflow drought frequency analysis and visualization of results using Severity-Duration-Frequency (SDF) for any USGS streamflow gauge across the United States. The package retrieves USGS streamflow observations, quantifies drought severity across multiple durations and return periods, and generates SDF curves. PyNdat is designed to support reproducible and accessible streamflow drought frequency analysis.

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Additional Metadata

Name	Value
docs_url	https://github.com/savalann/pyndat/blob/main/README.md
page_url	https://savalann.github.io/drought_dashboard/01.script/dashboard/index.html
thumbnail_url	https://user-images.githubusercontent.com/67179927/226765480-5383293e-856c-4ce3-8d6a-495e0418a55c.png

How to Cite

Naser Neisary, S. (2026). PyNdat: Python National Drought Analysis Tool, HydroShare, http://www.hydroshare.org/resource/7d10f719f97d40d3b3c8b4a4cdc714bb

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/

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