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USGS Groundwater Software


Three-dimensional groundwater flow simulation with Groundwater Management capability using optimization


Summary of GWM-2000, including version history

Software (Version 1.1.4, May 31, 2011, built from MODFLOW-2000 Version 1.17.2)

A Readme.txt file containing installation instructions is included with the Microsoft Windows software distribution file.
GWM-2000 compiled for Microsoft Windows: Contains compiled executable program, source code, test problems, and documentation report.
GWM2000.1_1_4.exe (2.3 Mb)


Addendum to GWM, version 1.1.1: A new input requirement; new capabilities added to increase output options; revised Supply sample problem (supply2). – March 2007.

Ahlfeld, D.P., Barlow, P.M., and Mulligan, A.E., 2005, GWM-A ground-water management process for the U.S. Geological Survey modular ground-water model (MODFLOW-2000): U.S. Geological Survey Open-File Report 2005-1072, 124 p.

Barlow, P.M., 2005, Use of Simulation-Optimization Modeling to Assess Regional Ground-Water Systems: U.S. Geological Survey Fact Sheet 2005-3095, 4 p.

Example Applications of GWM


Support is provided for correcting bugs and clarification of how the code is intended to work. Only limited assistance can be provided for applying GWM-2000 to specific problems. For support, contact:

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Web page comments, contact: Richard Winston
U.S. Geological Survey
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Last Iteration: November 08, 2011