Determining The Appropriate Model for Estimating River Bed Loads

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Vejahat j.; Saraf sh.

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Journal Paper

Paper Information

Journal: Iranian Journal of Irrigation and Drainage Year:2021 | Volume:15 | Issue:4 Page(s): 780-793

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Information Journal Paper

Title

Determining The Appropriate Model for Estimating River Bed Loads

Author(s)

Vejahat j. | Saraf sh. | Issue Writer Certificate

Keywords

Empirical equations

Regressions

Sensitivity analysis

Toffaletti

Abstract

Accurate estimation of sedimentation of a watershed is one of the most important issues in water engineering, river engineering, water resources, water facilities and structures, and the environment for the implementation of development plans and programs. The great variability in the equations has made it difficult to calculate the amount of sediment load in the river and the not exsit of information on how to extract the equations. In this paper, after collecting the necessary information in Benkooh hydrometric station and preparing the riverbed granulation, the amount of river bed load in this hydrometric station, using different Regressions and calculating through several experimental relationships used to calculate the amount of sediment load The river floor was calculated. The results of these relationships were compared with the results recorded in the hydrometric station and other relationships used, indicating that the relationship between the tuff and the error rate of 22. 71 in the RMSE coefficient of acceptable ability to calculate the amount of bed load in the area Has been studied, so it was chosen as the best model. The effective parameters in the sensativity analysis were analyzed and the results showed that the amount of floor load calculated in this method depends on the value of the flow velocity parameter and changes in water flow velocity in the river have a significant effect on the amount of sediment load.

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APA: Copy

Vejahat, j., & Saraf, sh.. (2021). Determining The Appropriate Model for Estimating River Bed Loads. IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE, 15(4 ), 780-793. SID. https://sid.ir/paper/1054371/en

Vancouver: Copy

Vejahat j., Saraf sh.. Determining The Appropriate Model for Estimating River Bed Loads. IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE[Internet]. 2021;15(4 ):780-793. Available from: https://sid.ir/paper/1054371/en

IEEE: Copy

j. Vejahat, and sh. Saraf, “Determining The Appropriate Model for Estimating River Bed Loads,” IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE, vol. 15, no. 4 , pp. 780–793, 2021, [Online]. Available: https://sid.ir/paper/1054371/en

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