Extending the Applicability of the Meyer–Peter and Müller Bed Load Transport Formula
1
Faculty of Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
2
Department of Civil Engineering, Democritus University of Thrace, 67100 Xanthi, Greece
*
Author to whom correspondence should be addressed.
Academic Editor: Wencheng Guo
Water 2021, 13(20), 2817; https://doi.org/10.3390/w13202817
Received: 30 August 2021
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Revised: 3 October 2021
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Accepted: 5 October 2021
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Published: 11 October 2021
(This article belongs to the Special Issue Research on Hydraulics and River Dynamics)
The present paper deals with the applicability of the Meyer–Peter and Müller (MPM) bed load transport formula. The performance of the formula is examined on data collected in a particular location of Nestos River in Thrace, Greece, in comparison to a proposed Εnhanced MPM (EMPM) formula and to two typical machine learning methods, namely Random Forests (RF) and Gaussian Processes Regression (GPR). The EMPM contains new adjustment parameters allowing calibration. The EMPM clearly outperforms MPM and, also, it turns out to be quite competitive in comparison to the machine learning schemes. Calibrations are repeated with suitably smoothed measurement data and, in this case, EMPM outperforms MPM, RF and GPR. Data smoothing for the present problem is discussed in view of a special nearest neighbor smoothing process, which is introduced in combination with nonlinear regression.
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Keywords:
bed load transport; random forests; Gaussian processes regression; Meyer–Peter and Müller formula; sediment transport
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MDPI and ACS Style
Sidiropoulos, E.; Vantas, K.; Hrissanthou, V.; Papalaskaris, T. Extending the Applicability of the Meyer–Peter and Müller Bed Load Transport Formula. Water 2021, 13, 2817. https://doi.org/10.3390/w13202817
AMA Style
Sidiropoulos E, Vantas K, Hrissanthou V, Papalaskaris T. Extending the Applicability of the Meyer–Peter and Müller Bed Load Transport Formula. Water. 2021; 13(20):2817. https://doi.org/10.3390/w13202817
Chicago/Turabian StyleSidiropoulos, Epaminondas, Konstantinos Vantas, Vlassios Hrissanthou, and Thomas Papalaskaris. 2021. "Extending the Applicability of the Meyer–Peter and Müller Bed Load Transport Formula" Water 13, no. 20: 2817. https://doi.org/10.3390/w13202817
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