The impact of a convectional summer rainfall event on river flow and fine sediment transport in a highly urbanised catchment: Bradford, West Yorkshire

Old, Gareth; Leeks, G. J. L.; Packman, J. C.; Smith, Barnaby P.G.; Lewis, Scott; Hewitt, E. J.; Holmes, M. G. R.; Young, Andy

doi:10.1016/s0048-9697(03)00070-6

Cited by 62 publications

(32 citation statements)

References 41 publications

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“…The result shows that the amount of sediment yield in a watershed was directly proportional to the amount or intensity of the rainfall. Our findings was similar to the result illustrated by OLD et al [2003] and LÓPEZ-TARAZÓN et al [2010], that the amount of sediment produced in a watershed increases during high storm events. Figure 9 shows the relationship between sediment yields in an increase urbanization under varying rainfall conditions.…”

Section: Rainfall Scenarios and Sediment Yieldsupporting

confidence: 92%

Impact of urbanization on the sediment yield in tropical watershed using temporal land-use changes and a GIS-based model

Bello

Hashim

Haniffah

2017

Journal of Water and Land Development

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Abundant rainfall areas promote sediment yield at both sub-watershed and watershed scale due to soil erosion and increase siltation of river channel, but it can be curtailed through planned urbanization. The urbanization of Skudai watershed is analysed from historical and future perspective. A GIS-based model (Hydrological Simulation Programme-FORTRAN-HSPF) is used to modelled sediment flow using basin-wide simulation, and the output result is utilized in evaluating sediment yield reduction due to increased urbanization by swapping multiple temporal land-use of decadent time-steps. The analysis indicates that sediment yield reduces with increase urban built-up and decrease forest and agricultural land. An estimated 12 400 tons of sediment will be reduced for every 27% increase in built-up areas under high rainfall condition and 1 490 tons at low rainfall. The sensitivity analysis of land-use classes shows that built-up, forest and barren are more sensitive to sediment yield reduction compared to wetland and agricultural land at both high and low rainfall. The result of the study suggests that increased urbanization reduced sediment yield in proportion to the rainfall condition and can be used as an alternative approach for soil conservation at watershed scale independent of climate condition.

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Section: Rainfall Scenarios and Sediment Yieldsupporting

confidence: 92%

Impact of urbanization on the sediment yield in tropical watershed using temporal land-use changes and a GIS-based model

Bello

Hashim

Haniffah

2017

Journal of Water and Land Development

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“…The way is versatile and applicable to many types of hysteresis loops. Since turbidity has been widely used as a surrogate for C (Schoellhamer 2002;Old et al 2003), index of hysteresis loop (HI) was devised to show the hysteresis magnitude as well as its direction as follows:…”

Section: Quantification Of C-q Hysteresismentioning

confidence: 99%

Spatial scale dependence of sediment dynamics in a gullied rolling loess region on the Loess Plateau in China

Fang

Qiangguo

et al. 2010

Environ Earth Sci

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Sediment dynamics is still imperfectly understood, especially at spatial scale in the highly erodible region of the Loess Plateau, and few studies have been heretofore conducted. Using 5-year continuous water and sediment records, three plots and three basins in the gullied rolling loess region were selected and sediment dynamics at spatial scale was studied. Results showed that the floods, where the peak discharge (Q p ) did not come earlier than the sediment peak, were predominant in slope zones, occupying [90 and [70% of the total for the Mao slope and for the Entire slope, respectively. However, in basins, most of the sediment peaks (C p ) lagged behind Q p , implying that slope zone was the main origin of sediment. More than 50% of the events presented clockwise hysteresis loops in the Mao slope area, while almost all the events had anticlockwise hysteresis loops in basins. This can be attributed to less occurring frequency of hyperconcentrated flow, as well as its instability in slope zones, compared to those in the basins. Within these contexts, gravitational erosion made the highest sediment concentration (C) in Tuanshangou basin and median developing status of C-discharge (C-Q) relationships in the Entire slope area. This study provides insights into the protection of slope surface and disruption of the development of hyperconcentrated flow to reduce soil loss.

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“…Walling and Collins, 2000). Turbidity has been widely used as a surrogate for SSC, since it is easily monitored and recorded and turbidity probes can be readily deployed in situ in the river channel (Glysson and Gray, 2002;Lewis, 2002;Schoellhamer, 2002;Old et al, 2003). In this case, turbidity is continuously recorded and converted to a record of SSC using an empirically derived calibration relationship relating SSC to turbidity.…”

Section: The Contextmentioning

confidence: 99%

“…This relationship can be derived either in situ, by relating the turbidity signal to values of SSC obtained for samples collected from the river in the vicinity of the probe over a range of flow conditions and ambient concentrations, or in the laboratory, by placing the probe in suspensions of known concentration, representative of the suspended sediment transported by the river, and covering a range of different sediment concentrations (e.g. Lawler and Brown 1992;Lewis, 2002;Old et al, 2003).…”

Section: Calibrationmentioning

confidence: 99%

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Estimating suspended sediment concentrations from turbidity measurements and the calibration problem

Minella

Merten

Reichert

et al. 2007

Hydrological Processes

130

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Abstract:In situ turbidity meters are being increasingly used to generate continuous records of suspended sediment concentration in rivers. However, the usefulness of the information obtained depends heavily on the existence of a close relationship between fluctuations in suspended sediment concentration and turbidity and the calibration procedure that relates suspended sediment concentration to the turbidity meter's signal. This study assesses the relationship between suspended sediment concentration and turbidity for a small (1Ð19 km 2 ) rural catchment in southern Brazil and evaluates two calibration methods by comparing the estimates of suspended sediment concentration obtained from the calibrated turbidity readings with direct measurements obtained using a USDH 48 suspended sediment sampler. With the first calibration method, the calibration relationship is derived by relating the turbidity readings to simultaneous measurements of concentration obtained from suspended sediment samples collected from the vicinity of the turbidity probe during flood events. With the second method, the calibration is based on the readings obtained from the turbidity meter when the probe immersed in samples of known concentration prepared using soils collected from the catchment. Overall, there was a close link between fluctuations in suspended sediment concentration and turbidity in the stream at the outlet of the catchment, and the estimates of sediment concentration obtained using the first calibration method corresponded closely with the conventionally measured sediment concentrations. However, use of the second calibration method introduced appreciable errors. When the estimated sediment concentrations were compared with the measured values, the mean errors were š122 mg l 1 and C601 mg l 1 for the first and second calibration procedures respectively.

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The impact of a convectional summer rainfall event on river flow and fine sediment transport in a highly urbanised catchment: Bradford, West Yorkshire

Cited by 62 publications

References 41 publications

Impact of urbanization on the sediment yield in tropical watershed using temporal land-use changes and a GIS-based model

Impact of urbanization on the sediment yield in tropical watershed using temporal land-use changes and a GIS-based model

Spatial scale dependence of sediment dynamics in a gullied rolling loess region on the Loess Plateau in China

Estimating suspended sediment concentrations from turbidity measurements and the calibration problem

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