SCS-CN-based Continuous Simulation Model for Hydrologic Forecasting

K. Geetha, S. Mishra, T. Eldho (), A. Rastogi and R. Pandey

Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), 2008, vol. 22, issue 2, 165-190

Abstract: A new lumped conceptual model based on the Soil Conservation Service Curve Number (SCS-CN) concept has been proposed in this paper for long-term hydrologic simulation and it has been tested using the data of five catchments from different climatic and geographic settings of India. When compared with the Mishra et al. ( 2005 ) model based on variable source area (VSA) concept, the proposed model performed better in all applications. Both the models however exhibited a better match between the simulated and observed runoff in high runoff producing watersheds than did in low runoff producing catchments. Using the results of the proposed model, dominant/dormant processes involved in watershed’s runoff generating mechanism have also been identified. The presented model is found useful in the continuous simulation of rainfall–runoff process in watersheds. Copyright Springer Science+Business Media, Inc. 2008

Keywords: hydrological forecasting; long-term hydrologic simulation; saturation excess overland flow; streamflow; rainfall–runoff; variable source area; curve number; antecedent moisture (search for similar items in EconPapers)
Date: 2008
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Citations: View citations in EconPapers (8)

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DOI: 10.1007/s11269-006-9149-5

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