DETERMINATION OF RAINFALL-RUNOFF THRESHOLD IN HYDROLOGICAL MODELLING OF ARID AND SEMI ARID REGIONS

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FARHANGI MAHSA; KHAYAT KHOLGHI MAJID; CHAVOSHIAN SEYED ALI

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Journal: JOURNAL OF DAM AND HYDROELECTRIC POWERPLANT Year:2016 | Volume:3 | Issue:8 Page(s): 56-67

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Title

DETERMINATION OF RAINFALL-RUNOFF THRESHOLD IN HYDROLOGICAL MODELLING OF ARID AND SEMI ARID REGIONS

Author(s)

FARHANGI MAHSA | KHAYAT KHOLGHI MAJID | CHAVOSHIAN SEYED ALI | Issue Writer Certificate

Keywords

HYDROLOGICAL MODELINGQ2

ARID AND SEMI ARID AREASQ2

EFFECTIVE RAINFALLQ2

NASH-SUTCLIFFE COEFFICIENTQ2

Abstract

For optimal management of water resources in a catchment it is important to estimate the amount of water within a catchment by HYDROLOGICAL MODELING. HYDROLOGICAL MODELING is very crucial in ARID AND SEMI ARID AREAS because of limited water resources in these areas. In this study, the problems of HYDROLOGICAL MODELING in these areas have been investigated and particularly is focused on EFFECTIVE RAINFALL. Then, a method is proposed to calculate EFFECTIVE RAINFALL and hortonian flow in a catchment. A hydrological distributed model, BTOPMC, is utilized and its performance is compared before and after applying modified hortonian flow formulation. Nash-Sutcliffe and volume error are the criteria used to calculate the model performance. Results have shown that applying modified equation for hortonian flow in BTOPMC have improved Nash-Sutcliffe and volume error about 12% and 10%, respectively that reflects its favorable impact on estimation water amount in a catchment by using BTOPMC.

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APA: Copy

FARHANGI, MAHSA, KHAYAT KHOLGHI, MAJID, & CHAVOSHIAN, SEYED ALI. (2016). DETERMINATION OF RAINFALL-RUNOFF THRESHOLD IN HYDROLOGICAL MODELLING OF ARID AND SEMI ARID REGIONS. JOURNAL OF DAM AND HYDROELECTRIC POWERPLANT, 3(8 ), 56-67. SID. https://sid.ir/paper/261518/en

Vancouver: Copy

FARHANGI MAHSA, KHAYAT KHOLGHI MAJID, CHAVOSHIAN SEYED ALI. DETERMINATION OF RAINFALL-RUNOFF THRESHOLD IN HYDROLOGICAL MODELLING OF ARID AND SEMI ARID REGIONS. JOURNAL OF DAM AND HYDROELECTRIC POWERPLANT[Internet]. 2016;3(8 ):56-67. Available from: https://sid.ir/paper/261518/en

IEEE: Copy

MAHSA FARHANGI, MAJID KHAYAT KHOLGHI, and SEYED ALI CHAVOSHIAN, “DETERMINATION OF RAINFALL-RUNOFF THRESHOLD IN HYDROLOGICAL MODELLING OF ARID AND SEMI ARID REGIONS,” JOURNAL OF DAM AND HYDROELECTRIC POWERPLANT, vol. 3, no. 8 , pp. 56–67, 2016, [Online]. Available: https://sid.ir/paper/261518/en

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