• Organization: Department of Agriculture
• Updated: 2024-02-15

The HYDRUS program is a finite element model for simulating the one-dimensional movement of water, heat, and multiple solutes in variably saturated media. The program numerically solves the...

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• Organization: Department of Agriculture
• Updated: 2024-02-15

HYDRUS-1D is a Microsoft Windows-based modeling environment for analysis of water flow and solute transport in variably saturated porous media. The software package includes the one-dimensional...

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• Organization: Department of the Interior
• Updated: 2020-09-25T00:00:00Z

Abstract from SIR 2017-5079: This report documents methodology and results of a study to evaluate groundwater discharge by evapotranspiration (GWET) in sparsely vegetated areas of Amargosa Desert...

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• Organization: Department of the Interior
• Updated: 2021-01-08T00:00:00Z

The text file "Near_Surface_Soil_Hydrology_measurements.txt" contains discrete measurements of soil hydrologic characteristics including unsaturated hydraulic conductivity, saturated hydraulic...

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• Organization: Department of the Interior
• Updated: 2023-05-18T00:00:00Z

Six hypothetical 1-dimensional models are used to verify and demonstrate new unsaturated-zone heat transport functionality added to MT3D-USGS (version 1.1.0). Because the governing equations...

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• Organization: Department of the Interior
• Updated: 2021-10-25T00:00:00Z

A MODFLOW-NWT model was used to simulate the groundwater/surface-water interactions in the Partridge River Basin, MN using the Streamflow Routing and Unsaturated Zone Flow packages. The base...

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• Organization: Department of Agriculture
• Updated: 2025-11-21

SWMS_3D is a computer program for simulating water and solute movement in three-dimensional variably saturated media. The program numerically solves the Richards' equation for...

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• Organization: Department of the Interior
• Updated: 2020-08-26T00:00:00Z

Widespread nitrate contamination of groundwater in agricultural areas poses a major challenge to sustainable water resources. Efficient analysis of nitrate fluxes across large regions also remains...

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• Organization: Department of Agriculture
• Updated: 2025-11-21

SWMS_2D is a computer program for simulating water and solute movement in two-dimensional variably saturated media. The program numerically solves the Richards' equation for saturated-unsaturated...

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• Organization: Department of the Interior
• Updated: 2020-11-17T00:00:00Z

Watershed-scale coupled surface water (SW) – groundwater (GW) flow modeling was used to examine changes in streamflow and SW – GW interaction resulting from irrigation and associated SW...

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• Organization: Department of the Interior
• Updated: 2023-10-16T00:00:00Z

This data release includes time-series, qualitative descriptions, and laboratory testing data from two monitoring stations installed in Puerto Rico following Hurricane Maria in 2017, which led to...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

This data set contains information that can be used to examine water fluxes in soils beneath tree crops in an Amazonian agroforest. The data consists of repeated measurements of soil matrix...

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• Organization: Department of the Interior
• Updated: 2022-01-11T00:00:00Z

Infiltrometers are devices used to measure the infiltration rates of water into soils or porous media (Bouwer, 1986). Cylinder infiltrometers are generally constructed from metal shaped into...

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• Organization: Department of the Interior
• Updated: 2020-08-27T00:00:00Z

Soil gas methane and combustible gas concentrations collected from oil and gas well pad locations in Utah. Soil gas samples were measured on site and/or collected for later analysis as described...

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• Organization: Department of Agriculture
• Updated: 2025-11-22

UNSATCHEM is a software package for simulating water, heat, carbon dioxide and solute movement in one-dimensional variably saturated media. The software consists of the UNSCHEM (version 2.0)...

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• Organization: Department of the Interior
• Updated: 2021-10-05T00:00:00Z

This is a data release comprised of data compiled during the construction of monitoring wells at four sentinel well sites: Trumbull, Cesar Chavez, Southern, and VA. These wells are located in...

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