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You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 5: Environmental Hydraulics and Hydrology : Characteristics of sediment transport by flood events in the lower yellow river
Characteristics of sediment transport by flood events in the lower yellow river
Author : Yanyan Zhang, Baosheng Wu and Xudong Fu
“Less water and more sediment” has caused serious sedimentation and continuous riverbed rising in the Lower Yellow River (LYR). Thus, it is important to optimize flood event series for sediment transport during the flood season. Characteristics of sediment transport in the LYR were studied based on 277 flood events during the period of 1950-1985. The stepwise regression approach was used to identify the primary factors affecting sediment delivery ratio (SDR). A new formulation of SDR considering nonlinear relations among influencing factors was developed. The 95% confidence interval of the regression was quantified. It was shown that: 1) the incoming sediment coefficient and the inflow-to-outflow ratio of water volume are the two main factors that impact SDR; and 2) the ratio of water volume variation is greater than unity, that ascribed to the storage of floodplain and water injection of Dongping Lake connected to a tributary of the LYR.
File Size : 591,157 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 5: Environmental Hydraulics and Hydrology
Date Published : 01/07/2011
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