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Spatial correlations in bed load transport: evidence, importance, and modelling

Autor: Heyman, J., Ma, H. B., Mettra, F., Ancey, C.

Publikováno v: Journal of Geophysical Research 19, 1751-1767, 2014

This article examines the spatial {dynamics of bed load particles} in water. We focus particularly on the fluctuations of particle activity, which is defined as the number of moving particles per unit bed {length}. Based on a stochastic model recentl

Externí odkaz: http://arxiv.org/abs/1611.04129

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Statistics of bedload transport over steep slopes: Separation of time scales and collective motion

Autor: Heyman, J., Mettra, F., Ma, H. B., Ancey, C.

Publikováno v: Geophysical Research Letters 40(1), 128-133, 2013

Steep slope streams show large fluctuations of sediment discharge across several time scales. These fluctuations may be inherent to the internal dynamics of the sediment transport process. A probabilistic framework thus seems appropriate to analyze s

Externí odkaz: http://arxiv.org/abs/1611.04134

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Entrainment, motion and deposition of coarse particles transported by water over a sloping mobile bed

Autor: Heyman, J., Bohorquez, P., Ancey, C.

In gravel-bed rivers, bedload transport exhibits considerable variability in time and space. Recently, stochastic bedload transport theories have been developed to address the mechanisms and effects of bedload transport fluctuations. Stochastic model

Externí odkaz: http://arxiv.org/abs/1604.00769

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