Abstract
R program language-Soil and Water Assessment Tool-Flexible Modeling Environment (R-SWAT-FME) (Wu and Liu, 2012) is a comprehensive modeling framework that adopts an R package, Flexible Modeling Environment (FME) (Soetaert and Petzoldt, 2010), for the Soil and Water Assessment Tool (SWAT) model (Arnold and others, 1998; Neitsch and others, 2005). This framework provides the functionalities of parameter identifiability, model calibration, and sensitivity and uncertainty analysis with instant visualization.
This user’s guide shows how to apply this framework for a customized SWAT project. Users have two ways to execute this modeling framework: (1) run the executable (RSWATFME.EXE), which is supported by the RFortran (Thyer and others, 2011) and Open Multi-Processing (OpenMP), or (2) run the R script (yp_SWATDLL_FME.R), which calls RSWATFME.DLL, in the R prompt window. Users that have access to the developed R function, R-SWAT, could also use other potential R packages for SWAT by simply calling functions R-SWAT(pars) or R-SWATcost(pars).
The software R-SWAT-FME is available at http://lca.usgs.gov/lca/nasabioenergy/links.php.
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