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:: Volume 2, Issue 4 (10-2008) ::
jwmseir 2008, 2(4): 12-24 Back to browse issues page
Importance of Calibration of Maximum Storage Index Coefficient and Curve Number in SCS Model in Amameh, Kasilian, Darjazin and Khanmirza Watersheds
Seied Hamid Reza Sadeghi , Mohammad Mahdavi , Shideh laleh Razavi
Associate Professor Tarbiat Modares University
Abstract:   (9308 Views)

Many empirical and indirect methods such as SCS have been developed for runoff prediction. The application

of such model out of the area where they have been developed causes error and their calibration is

therefore necessary. For this purpose, the storm-wise simultaneous rainfall and runoff data were collected

for Amameh, Kasilian, Darjazin and Khanmirza watersheds, and associated runoff values were predicted

and ultimately compared with observed ones. The results of application of un-calibrated model showed fair

agreement between predicted and measurement runoff data. To improve the results, the maximum storage

index coefficient as well as curve number were then calibrated for the areas and the comparison was made

again. The final results of application of calibrated model verified inefficiency of model in runoff prediction

for Kasilian and Darjazin watersheds whereas its performance was approved in case of Amameh and

Khanmirza watersheds with regression coefficient of 0.92 and 0.91, respectively.

Keywords: Surface Runoff, SCS Model, Initial Abstraction, Curve Number, Amameh, Kasilian, Darjazin, KhanmirzaA and Iran.
Full-Text [PDF 181 kb]   (1198 Downloads)    
Type of Study: Research | Subject: Special
Received: 2013/01/27
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Sadeghi S H R, mahdavi M, razavi S L. Importance of Calibration of Maximum Storage Index Coefficient and Curve Number in SCS Model in Amameh, Kasilian, Darjazin and Khanmirza Watersheds. jwmseir. 2008; 2 (4) :12-24
URL: http://jwmsei.ir/article-1-80-en.html


Volume 2, Issue 4 (10-2008) Back to browse issues page
مجله علوم ومهندسی آبخیزداری ایران Iranian Journal of Watershed Management Science and Engineering
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