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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/14942
Title: A modified SCS-CN method: Characterization and testing
Authors: Mishra S.K.
Singh V.P.
Sansalone J.J.
Aravamuthan V.
Published in: Water Resources Management
Abstract: The Soil Conservation Service Curve Number (SCS-CN) method (SCS, 1956) is modified by accounting for the static portion of infiltration and the antecedent moisture. A volumetric analysis shows that the ratio of the potential maximum retention (S) to the precipitation amount versus the runoff factor relation is equivalent to the average suction pressure-moisture content relation for a unit rainfall amount and a given soil porosity. A simple spreadsheet procedure is suggested for determining S with use of a 5-day antecedent precipitation amount. The modified method is found to perform well on the same data sets as used in the National Engineering Handbook (SCS, 1971).
Citation: Water Resources Management (2003), 17(1): 37-68
URI: https://doi.org/10.1023/A:1023099005944
http://repository.iitr.ac.in/handle/123456789/14942
Issue Date: 2003
Keywords: Modified SCS-CN method
Moisture diffusivity
Runoff factor
SCS-CN method
Soil sorptivity
Suction pressure-moisture content relation
ISSN: 9204741
Author Scopus IDs: 55463271000
57211219633
57204999850
6602357324
Author Affiliations: Mishra, S.K., National Institute of Hydrology, Roorkee, UP, India
Singh, V.P., Department of Civil/Env. Engineering, Louisiana State University, Baton Rouge, LA, United States
Sansalone, J.J., Department of Civil/Env. Engineering, Louisiana State University, Baton Rouge, LA, United States
Aravamuthan, V., Department of Civil/Env. Engineering, Louisiana State University, Baton Rouge, LA, United States
Corresponding Author: Mishra, S.K.; National Institute of Hydrology, Roorkee, UP, India
Appears in Collections:Journal Publications [WR]

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