A Dynamic Runoff Model for Disturbed Hillslopes

by L. E. Ormsbee, Univ of Kentucky, Lexington, United States,
L. B. Terrell, Univ of Kentucky, Lexington, United States,
D. E. Storm, Univ of Kentucky, Lexington, United States,
B. J. Barfield, Univ of Kentucky, Lexington, United States,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract:

A dynamic runoff model is developed for use in analyzing the hydrologic response of disturbed hillslopes. The model employs an explicit form of the Green-Ampt equation which is coupled with a dual storage nonlinear reservoir runoff model. Hillslope roughness and depression storage are modeled dynamically as function of the random roughness of the surface. The model has been applied to several different experimental watersheds. The impact of characterizing a disturbed hillslope as a simple plane are examined and discussed.

Subject Headings: Dynamic models | Mathematical models | Hydrologic models | Runoff | Slopes | Water storage | Hydraulic roughness

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