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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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Socioeconomic effects of bison and elk management alternatives on National Elk Refuge Socioeconomic effects of bison and elk management alternatives on National Elk Refuge

The purpose of this software is to develop predictions about future changes in the social and economic benefits provided by bison and elk and their management on the National Elk Refuge. The effects are estimated as a function of changing wildlife populations under different management alternatives. For additional detail on the methodology and case study, please refer to: McEachran, M.C...

Ash3d (Version 1.0.0) Ash3d (Version 1.0.0)

Ash3d: Volcanic ash advection/dispersion/sedimentation model

PHREEQC Version 3 PHREEQC Version 3

PHREEQC Version 3 is a computer program for speciation, batch-reaction, one-dimensional transport, and inverse geochemical calculations.

Evaluating high, moderate, and low concentrations of groundwater constituents across principal aquifer locations in the conterminous United States Evaluating high, moderate, and low concentrations of groundwater constituents across principal aquifer locations in the conterminous United States

This software release contains code to process and create pie and bar charts that display high, moderate, and low concentrations of groundwater constituents across principal aquifer locations in the conterminous United States for the National Integrated Water Availability Assessment (IWAAs) Water Quality Chapter. Data are processed from Lindsey et al., 2022 and Belitz et al., 2022. Water...

critFlowQ critFlowQ

This software release provides a means of inferring river discharge from remotely sensed data based on critical flow theory. This approach is only applicable to rivers with well defined standing waves and involves measuring their wavelength and the width of the channel. These data are then used to calculate flow velocity, water depth, and river discharge based on an assumption of...

SUTRA 4.0.0 SUTRA 4.0.0

This is the software release of SUTRA version 4.0.0.

SUTRA: A Model for 2D or 3D Saturated-Unsaturated, Variable-Density Ground-Water Flow With Solute or Energy Transport SUTRA: A Model for 2D or 3D Saturated-Unsaturated, Variable-Density Ground-Water Flow With Solute or Energy Transport

SutraSuite is a collection of software for groundwater modeling in both two spatial dimensions (2D) and three spatial dimensions (3D). It includes the SUTRA groundwater model, the SutraGUI pre-processor, the SutraPrep text-based preprocessor, and the SutraPolot post-processor.

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.

hyswap hyswap

There is a need for water professionals to provide water information in maps and graphics that contextualize data for real-time decision-making. hyswap (HYdrologic Surface Water Analysis Package), is a Python package that provides a set of functions for manipulating and visualizing USGS water data. Specifically, a number of functions for calculating statistics (e.g., exceedance...

Water budget estimation for a water availability assessment across the conterminous United States for water years 2010–2020 Water budget estimation for a water availability assessment across the conterminous United States for water years 2010–2020

This pipeline calculates a simple monthly water budget that includes water supply and consumptive use for thermoelectric, irrigation, and public supply for 12-digit Hydrologic Unit Codes (HUC12) across the conterminous United States for water years 2010-2020. Water budget results also include an assessment of supply and use imbalances within the context of historical climatic conditions...

Evaluating Elk Distribution and Conflict Under Proposed Management Alternatives at the National Elk Refuge in Jackson, Wyoming Evaluating Elk Distribution and Conflict Under Proposed Management Alternatives at the National Elk Refuge in Jackson, Wyoming

This software release contains the code necessary to produce the elk habitat selection models used to support the U.S. Fish and Wildlife Service feeding decisions for the National Elk Refuge. The models project elk space use under five management alternatives: continued feeding, no feeding, reduced ration, halt feeding after CWD threshold is met, and halt feeding after five years of...
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