Incorporating variable source area hydrology into a curve-number-based watershed model

  title={Incorporating variable source area hydrology into a curve-number-based watershed model},
  author={Elliot M. Schneiderman and Tammo S. Steenhuis and Dominique J. Thongs and Zachary M. Easton and Mark S. Zion and Andrew L. Neal and Guillermo F. Mendoza and M. Todd Walter},
Many water quality models use some form of the curve number (CN) equation developed by the Soil Conservation Service (SCS; U.S. Depart of Agriculture) to predict storm runoff from watersheds based on an infiltration-excess response to rainfall. However, in humid, well-vegetated areas with shallow soils, such as in the northeastern USA, the predominant runoff generating mechanism is saturation-excess on variable source areas (VSAs). We reconceptualized the SCS–CN equation for VSAs, and… CONTINUE READING

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