Water Resources
Software for Water Resources Applications
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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.
StreamStats
Streamflow statistics and spatial analysis tools for water-resources applications
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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.
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.
MODFLOW 6: USGS Modular Hydrologic Model
MODFLOW is a popular open-source groundwater flow model distributed by the U.S. Geological Survey.
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.
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).
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.
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.
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.
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.
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.
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.
PHREEQC Version 3
PHREEQC Version 3 is a computer program for speciation, batch-reaction, one-Ddmensional transport, and inverse geochemical calculations.