• Organization: Department of the Interior
• Updated: 2025-08-05T00:00:00Z

The U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency and the New Hampshire Department of Environmental Services, developed a model for used with MODFLOW-2005...

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

This dataset contains the data and results of an analysis estimating wet deposition and streamwater solute fluxes at Panola Mountain Research Watershed (PMRW), Panola Mountain State Park,...

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

Pore network simulations were performed to investigate the electrical geophysical signature of solute-transport in dual-domain media. This data release includes model results, source code, and...

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• Organization: Department of the Interior
• Updated: 2025-03-27T00:00:00Z

The U.S. Geological Survey (USGS) National Extent Hydrogeologic Framework for National Water Census (NEHF) project is a multi-year effort (2022 through 2025) that will compile existing assets...

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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 Agriculture
• Updated: 2025-11-21

3DADE is a Fortran computer program for evaluating a series of analytical solutions of the 3-Dimensional Advection-Dispersion Equation. The analytical solutions pertain to three-dimensional solute...

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

This research report documents the Fortran program N3DADE (Nonequilibrium 3-Dimensional Advection-Dispersion Equation) which may be used to evaluate analytical solutions described by Leij et al....

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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 Agriculture
• Updated: 2025-11-21

STANMOD (STudio of ANalytical MODels) is a Windows based computer software package for evaluating solute transport in porous media using analytical solutions of the convection-dispersion solute...

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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: U.S. Environmental Protection Agency
• Updated: 2016-12-14

Pipe flow mixing with various solute concentrations and flow rates at pipe junctions is investigated. The degree of mixing affects the spread of contaminants in a water distribution system. Many...

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

The U. S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency, developed a numerical ground-water-flow model, using MODFLOW-2000, to simulate ground-water flow in the...

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• Organization: Department of the Interior
• Updated: 2025-05-11T00:00:00Z

This data release includes remotely sensed lake and lake chemistry and water temperature data collected from 2011 to 2014) from a series of lakes on the Arctic Coastal Plain of Alaska. Most of the...

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• Organization: Department of Agriculture
• Updated: 2026-01-26

This dataset derives from an intensive field experiment that involved the use of time-lapse electrical resistivity imaging (ERI) to track the fate and transport of an injected salt tracer (KBr) in...

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

The U.S. Geological Survey, in cooperation with the U.S. Department of the Navy, developed several 3-D groundwater flow models for used with MODFLOW-2005, MODFLOW-NWT, and SEAWAT model codes to...

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

Data includes fine‑scale (1.5 cm minimum resolution) vertical solute concentrations for filtered methylmercury (ng/L), filtered total mercury (ng/L), dissolved organic carbon (mg/L), and dissolved...

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

MODFLOW-2005 groundwater flow models and MT3DMS solute transport models were developed to represent conditions in the vicinity of a bioremediation experiment conducted in fractured rocks...

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• Organization: U.S. Department of Health & Human Services
• Updated: 2025-09-06

A transdermal delivery system (TDS)for use in treatment of living bodies may be applied as an open (liquid, gel) or closed (patch) article. The TDS is composed of a particular active agent which...

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• Organization: Department of the Interior
• Updated: 2025-01-29T00:00:00Z

Assessment of geochemical cycling within tidal wetlands and measurement of fluxes of dissolved and particulate constituents between wetlands and coastal water bodies are critical to evaluating...

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

WASUIT is a computer program which predicts the Salinity Sodicity Toxic-solute concentration of the soil-water within a simulated crop root zone resulting from the use of a particular...

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