Articles | Volume 4, issue 3
Research article
 | Highlight paper
29 Aug 2016
Research article | Highlight paper |  | 29 Aug 2016

Gravel threshold of motion: a state function of sediment transport disequilibrium?

Joel P. L. Johnson

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Cited articles

Ancey, C., Davison, A. C., Bohm, T., Jodeau, M., and Frey, P.: Entrainment and motion of coarse particles in a shallow water stream down a steep slope, J. Fluid Mech., 595, 83–114,, 2008.
Buffington, J. M.: The legend of A. F. Shields, J. Hydraul. Eng.-ASCE, 125, 376–387,, 1999.
Buffington, J. M. and Montgomery, D. R.: A systematic analysis of eight decades of incipient motion studies, with special reference to gravel-bedded rivers, Water Resour. Res., 33, 1993–2029,, 1997.
Bunte, K., Abt, S. R., Swingle, K. W., Cenderelli, D. A., and Schneider, J. M.: Critical Shields values in coarse-bedded steep streams, Water Resour. Res., 49, 7427–7447,, 2013.
Buscombe, D. and Conley, D. C.: Effective shear stress of graded sediments, Water Resour. Res., 48, W05506,, 2012.
Short summary
Accurately predicting gravel transport rates in mountain rivers is difficult because of feedbacks with channel morphology. River bed surfaces evolve during floods, influencing transport rates. I propose that the threshold of gravel motion is a state variable for channel reach evolution. I develop a new model to predict how transport thresholds evolve as a function of transport rate, and then use laboratory flume experiments to calibrate and validate the model.