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Software

An official USGS software project is code reviewed and approved at the bureau-level for distribution.

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webDR: Spatial exploration of invasion risk of dreissenid mussels in the Missouri River Basin at the HUC10 watershed scale webDR: Spatial exploration of invasion risk of dreissenid mussels in the Missouri River Basin at the HUC10 watershed scale

The spread of non-native dreissenid mussels across North America has resulted in significant ecological and economic damage. Management efforts implementing early detection efforts (including watercraft inspections) may help reduce potential spread and new introductions, but optimizing effective deployment of these efforts in a resource-constrained environment is challenging. Raymond et...

MODFLOW 6: USGS Modular Hydrologic Model MODFLOW 6: USGS Modular Hydrologic Model

MODFLOW is a popular open-source groundwater flow model distributed by the U.S. Geological Survey.

R scripts to identify optimized grassland restoration sites in Kansas (version 1.0.0) R scripts to identify optimized grassland restoration sites in Kansas (version 1.0.0)

Ecological restoration is essential to meeting global biodiversity conservation goals. Given limited conservation budgets, deciding where to restore habitat is a key challenge for the coming decade. We developed a modeling approach to maximize conservation benefit/restoration cost ratios to optimize restoration. We illustrate this approach using a case study for highly threatened...

A Shiny application to support sample size estimation under the Wet Season Aquatic Fauna Agreement A Shiny application to support sample size estimation under the Wet Season Aquatic Fauna Agreement

The qualitative review document titled "QualitativeReviewWSAF_ForRECOVERReview_2025May5_FINAL.pdf" provides the motivation and background for developing this Shiny Application. The document provides a review of the Wet Season Aquatic Fauna (WSAF) MAP Agreement’s monitoring design using a qualitative statistical review framework that emphasizes connecting desired measurable objectives...

Visualizing a site prioritization tool for invasive species management: code for an R shiny application Visualizing a site prioritization tool for invasive species management: code for an R shiny application

This software release consists of R shiny code for a site prioritization tool for invasive species management: https://rconnect.usgs.gov/site-prioritization-tool/

NLDI Flow Tools NLDI Flow Tools

NLDI Flowtools is a Python package for basin delineation and flow path tracing from any point within CONUS. It can return either the full upstream drainage basin or just the portion within the local NHD catchment (i.e., splitcatchment). The flow path tracing tool follows terrain downhill until it intersects the nearest NHD stream line, returning both the traced path and the intersected...
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