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Evaluation and Testing of Storm-Event Hydrologic Models

by Lyle W. Zevenbergen, Water Engineering & Technology, Inc, United States,
Mark R. Peterson, Water Engineering & Technology, Inc, United States,



Document Type: Proceeding Paper

Part of: Soil Properties Evaluation from Centrifugal Models and Field Performance

Abstract:

Hydrologic models considered for this evaluation include: Areal Nonpoint Source Watershed Environmental Response Simulation (ANSWERS); a kinematic erosion model (KINEROS); Watershed and Sediment Runoff Simulation Model for Multiple Watersheds (MULTSED); Precipitation Runoff Modeling System (PRMS); and Hydrology and Sedimentology Watershed Model II (SEDIMOT II, SEDCAD version). Each model was evaluated in three categories: degree of physical process simulation; how well the model results compare with observations at an instrumented watershed; and the sensitivity of model results to variations in input parameters. It was found that all the models except SEDIMOT are quite complimentary with respect to hydrology and that similar results can be achieved from the ANSWERS, KINEROS or MULTSED models for sediment yield. MULTSED and KINEROS simulate the greatest number of channel processes.

Subject Headings: Hydrologic models | Simulation models | Mathematical models | Watersheds | Sediment | Runoff | Hydrology

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