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VS2DI: Model use, calibration, and validation

January 1, 2012

VS2DI is a software package for simulating water, solute, and heat transport through soils or other porous media under conditions of variable saturation. The package contains a graphical preprocessor for constructing simulations, a postprocessor for displaying simulation results, and numerical models that solve for flow and solute transport (VS2DT) and flow and heat transport (VS2DH). Flow is described by the Richards equation, and solute and heat transport are described by advection-dispersion equations; the finite-difference method is used to solve these equations. Problems can be simulated in one, two, or three (assuming radial symmetry) dimensions. This article provides an overview of calibration techniques that have been used with VS2DI; included is a detailed description of calibration procedures used in simulating the interaction between groundwater and a stream fed by drainage from agricultural fields in central Indiana. Brief descriptions of VS2DI and the various types of problems that have been addressed with the software package are also presented.

Publication Year 2012
Title VS2DI: Model use, calibration, and validation
DOI 10.13031/2013.42238
Authors Richard W. Healy, Hedeff I. Essaid
Publication Type Article
Publication Subtype Journal Article
Series Title Transactions of the ASABE
Index ID 70189201
Record Source USGS Publications Warehouse
USGS Organization National Research Program - Central Branch