Water Resources

Software

The USGS Water Resources Mission Area provides water information that is fundamental to national and local economic well-being,
protection of life and property, and effective management of the Nation’s water resources. Below, find software for a wide range of water resources research and management questions.

MODFLOW

MODFLOW

The internationally recognized USGS modular hydrologic model

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StreamStats

StreamStats

Streamflow statistics and spatial analysis tools for water-resources applications

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Filter Total Items: 63
Date published: June 26, 2020

ListingAnalyst

ListingAnalyst is a program for viewing the main output file from MODFLOW-2005, MODFLOW-NWT, MODFLOW-LGR, MODFLOW-CFP, MODFLOW-OWHM, and MODFLOW 6.

Attribution: Water Resources
Date published: June 26, 2020

GW_Chart: A Program for Creating Specialized Graphs Used in Groundwater Studies

GW_Chart is a graphing application for MODFLOW, Zonebudget, and other codes. GW_Chart also converts binary cell-by-cell flow files to text files.

Attribution: Water Resources
Date published: June 12, 2020

MODFLOW 6: USGS Modular Hydrologic Model

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

Attribution: Water Resources
Date published: May 1, 2020

Precipitation Runoff Modeling System (PRMS)

The Precipitation-Runoff Modeling System is a deterministic, distributed-parameter, physical process based modeling system developed to evaluate the response of various combinations of climate and land use on streamflow and general watershed hydrology.

Attribution: Water Resources
Date published: April 6, 2020

GSFLOW: Coupled Groundwater and Surface-Water Flow Model

Groundwater and Surface-water FLOW (GSFLOW) was developed to simulate coupled groundwater and surface-water resources. The model is based on the integration of the U.S. Geological Survey Precipitation-Runoff Modeling System (PRMS) and the U.S. Geological Survey Modular Groundwater Flow Model (MODFLOW).

Attribution: Water Resources
Date published: March 27, 2020

VS2DRTI - A Graphical Software Package for Simulating Water Flow, Heat Transport, and Reactive Solute Transport

VS2DRTI is a graphical software package for simulating water flow, heat transport, and reactive solute transport in variably saturated porous media.

Attribution: Water Resources
Date published: March 3, 2020

MODFLOW-NWT: A Newton Formulation for MODFLOW-2005

MODFLOW-NWT is a Newton-Raphson formulation for MODFLOW-2005 to improve solution of unconfined groundwater-flow problems. MODFLOW-NWT is a standalone program that is intended for solving problems involving drying and rewetting nonlinearities of the unconfined groundwater-flow equation.

Attribution: Water Resources
Date published: February 28, 2020

Thornthwaite Monthly Water Balance Model

The Thornthwaite water balance (Thornthwaite, 1948; Mather, 1978; 1979) uses an accounting procedure to analyze the allocation of water among various components of the hydrologic system. Inputs to the model are monthly temperature and precipitation. Outputs include monthly potential and actual evapotranspiration, soil moisture storage, snow storage, surplus, and runoff.

Attribution: Water Resources
Date published: February 25, 2020

ModelMuse: A Graphical User Interface for Groundwater Models

ModelMuse is a graphical user interface (GUI) for the U.S. Geological Survey
(USGS) models MODFLOW 6, MODFLOW–2005, MODFLOW-LGR, MODFLOW-LGR2, MODFLOW-NWT,
MODFLOW-CFP, MODFLOW-OWHM, MODPATH, ZONEBUDGET, PHAST, SUTRA 2.2, SUTRA 3.0, 
MT3D-USGS, and WellFootprint and the non-USGS model MT3DMS.

Attribution: Water Resources
Date published: January 20, 2020

FLASH-R: Flow-Log Analysis of Single Holes

FLASH-R (Flow-Log Analysis of Single Holes) is an R app for the analysis of borehole vertical flow logs to estimate fracture (or layer) transmissivities and far-field hydraulic heads.

Attribution: Water Resources
Date published: January 7, 2020

PHAST - A Computer Program for Simulating Groundwater Flow, Solute Transport, and Multicomponent Geochemical Reactions

PHAST Is a computer program for simulating groundwater flow, solute transport, and multicomponent geochemical reactions.

Attribution: Water Resources
Date published: January 7, 2020

PHREEQC Version 3

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

Attribution: Water Resources