2020
DOI: 10.1088/1755-1315/476/1/012111
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Analysis of sediment load under combined effect of rainfall and flow

Abstract: An increase in sediment load resulting from extreme weather event can affect the capacity of existing water infrastructure, for example, decreasing reservoir capacities, creating obstacles and reducing the navigation depth, or eroding bridge piers by scouring actions. A number of studies have been carried out on factors affecting sediment yield and transport but only a few studies being done on the combination of both rainfall and flow on the sediment load. Therefore, the aim of this study is to identify the i… Show more

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Cited by 3 publications
(4 citation statements)
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“…The estimated erosion rate during the lowest flow rate and rainfall intensity is 4.75 g/min and 70.2 g/min during the highest flow rate and rainfall intensity. The study showed that compared to similar studies for straight channels, the erosion rate is higher for meandering channels [12]. Consequently, a combination of both rainfall and flow resulted in a stronger linear correlation with sediment load.…”
Section: Resultsmentioning
confidence: 54%
“…The estimated erosion rate during the lowest flow rate and rainfall intensity is 4.75 g/min and 70.2 g/min during the highest flow rate and rainfall intensity. The study showed that compared to similar studies for straight channels, the erosion rate is higher for meandering channels [12]. Consequently, a combination of both rainfall and flow resulted in a stronger linear correlation with sediment load.…”
Section: Resultsmentioning
confidence: 54%
“…Rainfall and water discharge are the key factors influencing the changes in the sediment volume, and there exists a strong correlation among these three factors (Shams et al, 2020). The analysis revealed that there exists a significant positive correlation between the annual average water discharge and the annual average rainfall in the Nanliu River Basin (Figure 10A), indicating that the river basin flow mainly originates from precipitation, and the flow increases with the increase of rainfall (Figure 9).…”
Section: Relationship Between the Ssc And Flowmentioning
confidence: 96%
“…The analysis revealed that there exists a significant positive correlation between the annual average water discharge and the annual average rainfall in the Nanliu River Basin (Figure 10A), indicating that the river basin flow mainly originates from precipitation, and the flow increases with the increase of rainfall (Figure 9). Studies have shown that rainfall erosion intensity affects the change of sediment volume, and there is a positive correlation between sediment volume and rainfall (Zhang et al, 2015;Shams et al, 2020). Then, correlation analysis between the daily average SSC and daily average water discharge during the three periods from 1965 to 1966, 1976 to 1984, and 2001 to 2020 demonstrated that there exists a positive correlation between these two parameters (Figures 10B-D), SSC changes with the water discharge (Figures 2, 3), and the SSC and water discharge change synchronously.…”
Section: Relationship Between the Ssc And Flowmentioning
confidence: 99%
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