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R. Ferguson, P. Ashmore, P. Ashworth, C. Paola, K. Prestegaard (1992)
Measurements in a Braided River chute and lobe: 1. Flow pattern, sediment transport, and channel changeWater Resources Research, 28
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Pivoting analyses of the selective entrainment of sediments by shape and size with application to gravel thresholdSedimentology, 33
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Bedload and size distribution in paved gravel‐bed streamsJ. Hydraul. Div. Am. Soc. Civ. Eng., 108
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Methods for Estimating the Critical Shear Stress of Individual Fractions in Mixed-Size SedimentWater Resources Research, 24
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A reply to [a discussion of shih and Komar's (1990) analysis of differential bedload transport rates in a gravel‐bed stream: A grain‐size distribution approach] by P. DiplasEarth Surface Processes and Landforms, 17
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G. Parker, E. Andrews (1985)
Sorting of Bed Load Sediment by Flow in Meander BendsWater Resources Research, 21
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Selective Sorting and Abrasion of River Gravel. II: ApplicationsJournal of Hydraulic Engineering, 117
Ashmore Ashmore (1982)
Laboratory modelling of gravel, braided stream morphologyEarth Surf. Processes Landforms, 7
P. Wilcock, J. Southard (1989)
Bed load transport of mixed size sediment: Fractional transport rates, bed forms, and the development of a coarse bed surface layerWater Resources Research, 25
G. Parker, P. Klingeman, D. McLean (1983)
Bedload and Size Distribution in Paved Gravel-Bed StreamsJournal of Hydraulic Engineering, 108
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Komar Komar, Shih Shih (1992)
Reply to discussion by P. Diplas of Shih and Komar's (1990) “Differential bedload transport rates in a gravel‐bed stream: A grain size distribution approach,”Earth Surf. Processes Landforms
P. Komar, P. Carling (1991)
Grain sorting in gravel‐bed streams and the choice of particle sizes for flow‐competence evaluationsSedimentology, 38
J. Kirchner, W. Dietrich, Fujiko Iseya, H. Ikeda (1990)
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Grain size distributions of bed material, bed load, and bar head deposition were sampled during the evolution of a chute and lobe in the braided gravel bed Sunwapta River, Alberta. Although bed shear stress and total bed load transport rate varied substantially within the reach and from day to day (Ferguson et al., this issue), the median diameter D50 of bed load was remarkably constant. The bed initially fined from chute to bar head but became more uniform. Sediment deposited on the bar head also had a near constant D50, similar to that of the bed load truncated at the same lower size limit. Both load and deposition were finer on average than the bed, suggesting overall selective transport despite little sign of local sorting. In contrast to median diameters, maximum sizes (Dmax) of sediment in motion and deposited on the bar head varied substantially and showed a weak but significant dependence on shear stress. Inferring selective entrainment from this evidence alone would be dubious because Dmax was also found to increase systematically with the mass of sediment sampled. However, two different methods of analysis of fractional transport rates throughout the size range also showed size‐selective entrainment and transport. In the marginal transport conditions of this study, size sorting appears to occur but only weakly and mainly in the coarser fractions.
Water Resources Research – Wiley
Published: Jul 1, 1992
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