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MODFLOW-OWHM [11] (version 1.00.12, October 1, 2016), The One-Water Hydrologic Flow Model (MODFLOW-OWHM, MF-OWHM or One-Water [12]), developed cooperatively between the USGS and the U.S. Bureau of Reclamation, is a fusion of multiple versions of MODFLOW-2005 (NWT, LGR, FMP, SWR, SWI) into ONE version, contains upgrades and new features and ...
Two-dimensional model of subsurface drainage in a vertical plane Three-dimensional grid, Modflow One-dimensional models can be used for the vertical flow in a system of parallel horizontal layers. Two-dimensional models apply to a vertical plane while it is assumed that the groundwater conditions repeat themselves in other parallel vertical ...
MODFLOW code discretizes and simulates an orthogonal 3-D form of the governing groundwater flow equation. However, it has an option to run in a "quasi-3D" mode if the user wishes to do so; in this case the model deals with the vertically averaged T and S, rather than k and S s. In the quasi-3D mode, flow is calculated between 2D horizontal ...
A hydrologic model is a simplification of a real-world system (e.g., surface water, soil water, wetland, groundwater, estuary) that aids in understanding, predicting, and managing water resources.
The original version of Visual MODFLOW, developed for DOS by Nilson Guiguer, Thomas Franz and Bob Cleary, was released in August 1994. It was based on the USGS MODFLOW-88 and MODPATH code, and resembled the FLOWPATH program developed by Waterloo Hydrogeologic Inc. [clarification needed] The first Windows based version was released in 1997. [1]
One of the well-known programs in modeling groundwater flow is MODFLOW, developed by the United States Geological Survey. It is a free and open-source program that uses the finite difference method as the framework to model groundwater conditions. The recent development of related programs offers more features, including: [52] [53]
MT3D is a family of finite-difference groundwater mass transport modeling software, often used with MODFLOW. The first generation, MT3D, was developed by Chunmiao Zheng in 1990, [ 1 ] [ 2 ] and most recently released by the U.S. Geological Survey with MT3D-USGS.
WEAP links to the USGS MODFLOW groundwater flow model and the US EPA QUAL2K surface water quality model. WEAP was created in 1988 and continues to be developed and supported by the U.S. Center of the Stockholm Environment Institute, a non-profit research institute based at Tufts University in Somerville, Massachusetts.