BohraniFard Ayoub, Rouhina Ayat, MohagheghSeyed Saeid, Asadolah Talebifar
Islamic Azad University, Hamadan Branch, Young Researcher Club, Hamedan, Iran.
Islamic Azad University, Yasouj Branch, Young Researcher Club, Yasouj Branch. Iran
Young Researchers and Elite club, Hamedan Branch, Islamic Azad University, Hamedan, Iran
Watreshed Management Engineering, Iran
Key words: Finding flood routing, Convex method, Nash–Sutcliffe, Dalki river.
In this research with the use of the hydrological convex sub-methods the operation of finding flood routing was done between the Sarghanat and Kelal stations located in Dalkiriver. thecharacterstics of 26 flood was extracted as model input and then to evalute model performance and predict the output of hydrographs the Nash–Sutcliffe criteria, RMSE and relative error was used. Results of this study showed that Convex graphical sub-method can predict the outputs of hydrographs with higher precision as compared to other three methods. Moreover another result of this research is the priority of the use of 50% discharge as input discharge in model and results showed that in all sub-methods the predictiong the discharges of lower than 700 cubic meter per second had higher precision compared to discharges more than 700 cubic meter per second.
Get the original articles in Source: Volume 4, Number 2, February 2014 – JBES
Published By: International Network for Natural Sciences