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Estimation of total sediment load concentration obtained by experimental study using artificial neural networks

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Abstract

Estimation of sediment concentration in rivers is very important for water resources projects planning and managements. The sediment concentration is generally determined from the direct measurement of sediment concentration of river or from sediment transport equations. Direct measurement is very expensive and cannot be conducted for all river gauge stations. However, sediment transport equations do not agree with each other and require many detailed data on the flow and sediment characteristics. The main purpose of the study is to establish an effective model which includes nonlinear relations between dependent (total sediment load concentration) and independent (bed slope, flow discharge, and sediment particle size) variables. In the present study, by performing 60 experiments for various independent data, dependent variables were obtained, because of the complexity of the phenomena, as a soft computing method artificial neural networks (ANNs) which is the powerful tool for input–output mapping is used. However, ANN model was compared with total sediment transport equations. The results show that ANN model is found to be significantly superior to total sediment transport equations.

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Correspondence to Özgür Kişi.

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Doğan, E., Yüksel, İ. & Kişi, Ö. Estimation of total sediment load concentration obtained by experimental study using artificial neural networks. Environ Fluid Mech 7, 271–288 (2007). https://doi.org/10.1007/s10652-007-9025-8

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  • DOI: https://doi.org/10.1007/s10652-007-9025-8

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