Articles | Volume 9, issue 3
Earth Surf. Dynam., 9, 539–576, 2021
Earth Surf. Dynam., 9, 539–576, 2021

Research article 16 Jun 2021

Research article | 16 Jun 2021

Rarefied particle motions on hillslopes – Part 1: Theory

David Jon Furbish et al.

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Particle energy partitioning and transverse diffusion during rarefied travel on an experimental hillslope
Sarah G. W. Williams and David J. Furbish
Earth Surf. Dynam., 9, 701–721,,, 2021
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Rarefied particle motions on hillslopes – Part 2: Analysis
David Jon Furbish, Sarah G. W. Williams, Danica L. Roth, Tyler H. Doane, and Joshua J. Roering
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Rarefied particle motions on hillslopes – Part 3: Entropy
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Rarefied particle motions on hillslopes – Part 4: Philosophy
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Earth Surf. Dynam., 9, 629–664,,, 2021
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The transport of sediment mixtures examined with a birth-death model for grain-size fractions
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Preprint withdrawn

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Physical: Geomorphology (including all aspects of fluvial, coastal, aeolian, hillslope and glacial geomorphology)
The formation and geometry characteristics of boulder bars due to outburst floods triggered by overtopped landslide dam failure
Xiangang Jiang, Haiguang Cheng, Lei Gao, and Weiming Liu
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Landslide-lake outburst floods accelerate downstream hillslope slippage
Wentao Yang, Jian Fang, and Jing Liu-Zeng
Earth Surf. Dynam., 9, 1251–1262,,, 2021
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The relative influence of dune aspect ratio and beach width on dune erosion as a function of storm duration and surge level
Michael Itzkin, Laura J. Moore, Peter Ruggiero, Sally D. Hacker, and Reuben G. Biel
Earth Surf. Dynam., 9, 1223–1237,,, 2021
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Philipp Mamot, Samuel Weber, Saskia Eppinger, and Michael Krautblatter
Earth Surf. Dynam., 9, 1125–1151,,, 2021
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The effects of storms and a transient sandy veneer on the interannual planform evolution of a low-relief coastal cliff and shore platform at Sargent Beach, Texas, USA
Rose V. Palermo, Anastasia Piliouras, Travis E. Swanson, Andrew D. Ashton, and David Mohrig
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Cited articles

Almazán, L., Serero, D., Salueña, C., and Pöschel, T.: Energy decay in a granular gas collapse, New J. Phys., 19, 013001,, 2017. 
Ancey, C., Davison, A., Böhm, 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. 
Anderson, R. S.: Modeling the tor-dotted crests, bedrock edges, and parabolic profiles of high alpine surfaces of the Wind River Range, Wyoming, Geomorphology, 46, 35–58, 2002. 
Atwood-Stone, C. and McEwen, A. S.: Avalanche slope angles in low-gravity environments from active Martian sand dunes, Geophys. Res. Lett., 40, 2929–2934, 2013. 
Bagnold, R. A.: Experiments on a gravity-free dispersion of large solid spheres in a Newtonian fluid under shear, P. Roy. Soc. Lond. A, 225, 49–63, 1954. 
Short summary
Sediment particles skitter down steep hillslopes on Earth and Mars. Particles gain speed in going downhill but are slowed down and sometimes stop due to collisions with the rough surface. The likelihood of stopping depends on the energetics of speeding up (heating) versus slowing down (cooling). Statistical physics predicts that particle travel distances are described by a generalized Pareto distribution whose form varies with the Kirkby number – the ratio of heating to cooling.