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An improved AMC-coupled runoff curve number model
- Sahu, Ram Kumar, Mishra, S.K., Eldho, T.I.
- Hydrological processes 2010 v.24 no.20 pp. 2834-2839
- models, runoff, soil conservation, United States
- In the Soil Conservation Service Curve Number (SCS-CN) method, the three levels of antecedent moisture condition (AMC) permit unreasonable sudden jumps in curve numbers, which result into corresponding jumps in the estimated runoff. A few recently developed SCS-CN-based models obviate this problem, yet they have several limitations. In this study, such a model incorporating a continuous function for antecedent moisture has been presented. It has several advantages over the other existing SCS-CN-based models. Its application to a large dataset from US watersheds showed to perform better than the existing SCS-CN method and the others based on it.