Verifications and Applications of a Nonpoint Source Pollution Model

by Ming T. Lee, Illinois State Water Survey, Champaign, IL, USA,

Document Type: Proceeding Paper

Part of: Engineering Hydrology


To meet the needs of the Illinois Comprehensive Monitoring and Evaluation (CM&E) project of the Rural Clean Water Program (RCWP), the Agricultural Nonpoint Source Pollution Model (AGNPS) was selected for evaluating the effectiveness of Best Management Practices (BMPs). AGNPS is a distributed storm event model consisting of runoff, erosion, sediment yield, and agricultural related water quality components. Before the model was used to assess various watershed scenarios, 2 years and 10 months of field data were used to verify the model. The detailed model verification is discussed. The results of the model applications for the scenario analysis are presented.

Subject Headings: Agricultural wastes | Water pollution | Nonpoint pollution | Verification | Water quality | Best Management Practices (BMPs) | Storms | Runoff | Illinois | United States

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