A review of Ackers and White sediment transport predictor

Autor:	Gregor Petkovšek
Rok vydání:	2020
Předmět:	Matching (statistics) River engineering Calibration and validation Scale (ratio) Environmental science Sediment Soil science Silt Sediment transport Water Science and Technology
Zdroj:	Proceedings of the Institution of Civil Engineers - Water Management. 173:1-13
ISSN:	1751-7729 1741-7589
DOI:	10.1680/jwama.18.00039
Popis:	A sediment transport predictor based on a review and update of the theory of Ackers and White is proposed. While the core of the Ackers and White theory was retained, the approach to predicting transport rates was updated by introducing some new ideas and modified where opportunities for improvement were identified. A large dataset compiled from the existing literature was used for model calibration and validation. The results showed a good improvement compared with the original Ackers and White equation and some other total load predictors. Better matching with observed data was achieved especially at higher slopes (above 1%) and low submergence ratios (below 50) as well as at the extremes of the sediment size scale, where the applicability was extended to the coarse silt region. Predictions for gravel and coarser sediment were also improved.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::613a8a2da923ebc1be09c61a82980bee https://doi.org/10.1680/jwama.18.00039 Zobrazit plný text záznamu