SIMULATION OF DIRECT RUN-OFF HYDROGRAPH USING NASH'S LINEAR RESERVOIR MODEL IN JAFAR-ABAD WATERSHED, GOLESTAN PROVINCE

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MOSTAFAZADEH R.; BAHREMAND A.

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Journal: IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING Year:2009 | Volume:3 | Issue:6 Page(s): 9-16

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Title

SIMULATION OF DIRECT RUN-OFF HYDROGRAPH USING NASH'S LINEAR RESERVOIR MODEL IN JAFAR-ABAD WATERSHED, GOLESTAN PROVINCE

Author(s)

MOSTAFAZADEH R. | BAHREMAND A. | Issue Writer Certificate

Keywords

RAINFALL RUNOFF MODELINGQ3

NASH'S LINEAR RESERVOIR MODELQ3

IUHQ2

MOMENT METHOD AND JAFAR ABAD WATERSHEDQ3

Abstract

Estimation of runoff hydro graph from ungauged catchments has been an important subject of research for planning, development and operation of different water resources projects. In this study, NASH'S LINEAR RESERVOIR MODEL was applied to predict direct runoff hydrograph characteristics in Jafar-Abad watershed (l09 km2) located in Golestan province. Using hourly hydro-meteorological data, the Nash model parameters (n and k) calculated by Moment method for 33 storm events. Then the mean value of n and k, were used for simulation of second subset of storm events as model validation. The efficiency of Nash model was evaluated by statistical comparison with the observed hydrographs. The results indicated that the model predicts direct runoff hydro graphs with good accuracy, 70% according to the Nash-Sutcliffe criterion. Also mean relative error of peak discharge, relative error of time to peak, model bias for water balance and RMSE are 10%, 10%, 25% and 3.94, respectively. The good agreement between observed and simulated hydro graphs shows that n and k were calculated reasonably by Moment method. Results show that the Moment method in estimation of n and k parameters gives good results. So that regionalization of Nash's model parameters (n and k), in ungauged catchments is suggested for development and application of this hydrological model.

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APA: Copy

MOSTAFAZADEH, R., & BAHREMAND, A.. (2009). SIMULATION OF DIRECT RUN-OFF HYDROGRAPH USING NASH'S LINEAR RESERVOIR MODEL IN JAFAR-ABAD WATERSHED, GOLESTAN PROVINCE. IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING, 3(6), 9-16. SID. https://sid.ir/paper/134672/en

Vancouver: Copy

MOSTAFAZADEH R., BAHREMAND A.. SIMULATION OF DIRECT RUN-OFF HYDROGRAPH USING NASH'S LINEAR RESERVOIR MODEL IN JAFAR-ABAD WATERSHED, GOLESTAN PROVINCE. IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING[Internet]. 2009;3(6):9-16. Available from: https://sid.ir/paper/134672/en

IEEE: Copy

R. MOSTAFAZADEH, and A. BAHREMAND, “SIMULATION OF DIRECT RUN-OFF HYDROGRAPH USING NASH'S LINEAR RESERVOIR MODEL IN JAFAR-ABAD WATERSHED, GOLESTAN PROVINCE,” IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING, vol. 3, no. 6, pp. 9–16, 2009, [Online]. Available: https://sid.ir/paper/134672/en

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