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Comparative evaluation of SCS-CN-inspired models in applications to classified datasets

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Title Comparative evaluation of SCS-CN-inspired models in applications to classified datasets
 
Creator SAHU, RK
MISHRA, SK
ELDHO, TI
 
Subject curve number method
rainfall-runoff modeling
curve number method
soil moisture accounting (sma)
 
Description One of the popular methods for estimating the depth of surface runoff for a given rainfall event is the Soil Conservation Service Curve Number(SCS-CN) method. Of late, several inconsistencies in its soil moisture accounting procedure have been pointed out by Michel et al. (2005), and a more rational procedure suggested. Recently, a modification incorporating an expression for estimation of initial soil moisture store level, a crucial parameter, Was Suggested by Sahu et al. (2007). The present study compares this modification with the original SCS-CN model and the other available variants on a large set of data of 76 small agricultural watersheds of the United States and finally suggests an improved model. The comprehensive comparison between these models reveals the proposed improvement to perform better than all other versions in all classified applications based oil land use, soil type, combinations of land use and soil type, and precipitation regimes. A simplified version of the model is further suggested for practical applications. .
 
Publisher ELSEVIER SCIENCE BV
 
Date 2011-07-24T13:40:17Z
2011-12-26T12:56:38Z
2011-12-27T05:45:40Z
2011-07-24T13:40:17Z
2011-12-26T12:56:38Z
2011-12-27T05:45:40Z
2010
 
Type Article
 
Identifier AGRICULTURAL WATER MANAGEMENT, 97(5), 749-756
0378-3774
http://dx.doi.org/10.1016/j.agwat.2010.01.005
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6441
http://hdl.handle.net/10054/6441
 
Language en