Izadpanah, R., Hashemi, S., Farrokhi, A. (2021). Evaluating river bed load estimation models to introduce a suitable model, case study: Hablehroud River. , 13(3), 577-589. doi: 10.22092/ijwmse.2021.351823.1837
Reza Izadpanah; Seyed Ali Asghar Hashemi; Alireza Farrokhi. "Evaluating river bed load estimation models to introduce a suitable model, case study: Hablehroud River". , 13, 3, 2021, 577-589. doi: 10.22092/ijwmse.2021.351823.1837
Izadpanah, R., Hashemi, S., Farrokhi, A. (2021). 'Evaluating river bed load estimation models to introduce a suitable model, case study: Hablehroud River', , 13(3), pp. 577-589. doi: 10.22092/ijwmse.2021.351823.1837
Izadpanah, R., Hashemi, S., Farrokhi, A. Evaluating river bed load estimation models to introduce a suitable model, case study: Hablehroud River. , 2021; 13(3): 577-589. doi: 10.22092/ijwmse.2021.351823.1837

Evaluating river bed load estimation models to introduce a suitable model, case study: Hablehroud River

مهندسی و مدیریت آبخیز
Article 5, Volume 13, Issue 3, October 2021, Pages 577-589    PDF (1.14 M)
Document Type: Research Paper
DOI: 10.22092/ijwmse.2021.351823.1837
Authors
Reza Izadpanah* 1; Seyed Ali Asghar Hashemi2; Alireza Farrokhi3
1MSc of Civil Engineering, Engineering and Water Resources Management, Alaodoleh Semnani Institute of Higher Education, Garmsar, Iran
2Assistant Professor, Agricultural and Natural Resources Research Centre, AREEO, Semnan, Iran
3Faculty member of Aladoleh Semnani Higher Education Institute, Garmsar
Abstract
Estimation of sediment bed load is one of the most important issues in river engineering. Accordingly, several methods and relations have been proposed to estimate the bed load in streams for the past decades. The present research aimed to select the most accurate method to estimate bed load through the testing of various relations to estimate the bed load of the Hablehroud River. The hydraulic and geometric specifications of the Hablehroud River at Bankouh hydrometry station were measured on specific dates by the expert team. The bed load rate was calculated by four different relations in Bankouh hydrometry station from 2011 to 2017. Resultant data showed that the Toffaletti method with RMSE, MAE, and R2 of 20.07, 10.86, and 83 estimates more accurate in comparison with other methods. The sensitivity analysis of the Toffaletti equation revealed that the bed load depends greatly on the velocity of the river flow. Such a method is firmly recommended to use in the mountainous region.
Keywords
Bed load; Empirical equation; Hablehroud River; Sensitivity analysis; Toffaletti equation
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