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Catchment area‐based evaluation of the AMC‐dependent SCS‐CN‐based rainfall–runoff models
Author(s) -
Mishra S. K.,
Jain M. K.,
Pandey R. P.,
Singh V. P.
Publication year - 2005
Publication title -
hydrological processes
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.222
H-Index - 161
eISSN - 1099-1085
pISSN - 0885-6087
DOI - 10.1002/hyp.5736
Subject(s) - antecedent moisture , surface runoff , runoff curve number , hydrology (agriculture) , environmental science , drainage basin , watershed , runoff model , catchment area , catchment hydrology , computer science , geology , geography , cartography , ecology , geotechnical engineering , biology , machine learning
Using a large set of rainfall–runoff data from 234 watersheds in the USA, a catchment area‐based evaluation of the modified version of the Mishra and Singh (2002a) model was performed. The model is based on the Soil Conservation Service Curve Number (SCS‐CN) methodology and incorporates the antecedent moisture in computation of direct surface runoff. Comparison with the existing SCS‐CN method showed that the modified version performed better than did the existing one on the data of all seven area‐based groups of watersheds ranging from 0·01 to 310·3 km 2 . Copyright © 2005 John Wiley & Sons, Ltd.