Please use this identifier to cite or link to this item: http://117.252.14.250:8080/jspui/handle/123456789/4667
Title: 61-Continuous Simulation Model for Hydrologic Forecasting Based on Modified SCS-CN Concept.
Authors: Geetha, K.
Eldho, T. I.
Rastogi, A. K.
Mishra, S. K.
Keywords: Watershed Model
Hydrological Forecasting
Long-term Hydrologic Simulation
Streamflow
Rainfall-runoff
Variable Source Area
Curve Number
Antecedent Moisture
Soil Conservation Service Curve Number (SCS-CN)
Issue Date: 2009
Publisher: Allied Publishers Pvt. Ltd., New Delhi
Abstract: A new lumped conceptual model based on the modified 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 three catchments from different climatic and geographic settings of India. The proposed model based on modified SCS-CN concept has been compared with a lumped conceptual model based on Variable Source Area (VSA) theory (Mishra et at., 2005). The comparison revealed the proposed model to perform 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. The performance was evaluated in terms of the catchment response and the streamflow generation by producing satisfactory results through model efficiency and relative error. Using the results of the proposed model, dominant/dormant processes involved in watershed's runoff generating mechanism were also identified.
URI: http://117.252.14.250:8080/jspui/handle/123456789/4667
Appears in Collections:Proceedings of the International Conference on Water, Environment, Energy and Society (WEES-2009), 12-16 January 2009 at New Delhi, India, Vol.-1



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