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Title: Improved storm duration and antecedent moisture condition coupled scs-cn concept-based model
Authors: Sahu R.K.
Mishra, Surendra Kumar
Eldho T.I.
Published in: Journal of Hydrologic Engineering
Abstract: The Soil Conservation Service curve number (SCS-CN) method is a well-recognized technique for the estimation of direct surface runoff from a rainfall event. Most of the recently developed SCS-CN-based models including the original one ignore the effect of storm duration or rainfall intensity on surface runoff, an important aspect of the rainfall-runoff model. Some of these models have, however, included the antecedent moisture conditions. In this study, storm duration is incorporated in a recently modified version of the SCS-CN method to derive a more advanced model. This version is found to perform generally better than the other on the data of 60 small U.S. watersheds. The former model performed significantly better than the latter on the watersheds dominated by silty soils and cultivated land uses.© 2012 American Society of Civil Engineers.
Citation: Journal of Hydrologic Engineering (2012), 17(11): 1173-1179
Issue Date: 2012
Keywords: Antecedent moisture
Rainfall-runoff modeling
SCS-CN method
Storm duration
Surface runoff
ISSN: 10840699
Author Scopus IDs: 57206353875
Author Affiliations: Sahu, R.K., Dept. of Soil and Water Conservation Engineering, College of Agricultural Engineering, R.A.U., Pusa, Samastipur-848125, India
Mishra, S.K., Water Resources Development and Management, Indian Institute of Technology, Roorkee-247667, India
Eldho, T.I., Dept. of Civil Engineering, Indian Institute of Technology, Bombay, Powai, Mumbai-400076, India
Corresponding Author: Eldho, T.I.; Dept. of Civil Engineering, Indian Institute of Technology, Bombay, Powai, Mumbai-400076, India; email:
Appears in Collections:Journal Publications [WR]

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