EP045:
Sorting by particle property and other 'granular' mechanisms and their influence on earth and planetary surface processes


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Session ID#: 27124

Session Description:
Sorting of particles by size, density and other properties plays a significant role in earth and planetary surface processes. As consituents unmix, they influence other dynamics from transport rates to average and extreme stresses. For example: Sorting of a wide range of grain sizes results in patterns such as armoring, gravel patch formation, and downstream fining and modifies bedload and suspension fluxes; Sorting in a debris flow gives rise to a well-known coarsening of the front or snout, affecting bed erosion and other geomorphological effects and hazards; Sorting of particles also plays a role in hazards associated with snow avalanches, pyroclastic flows, rock avalanches, and other geophysical flows. This session involves experimental, theoretical, numerical and field-based contributions on grain sorting behaviors and their influence on earth surface processes. Research is most welcomed at different scales, from the grain to the basin and within different environments, including coasts, estuaries, rivers, mountains....
Primary Convener:  Kimberly M Hill, University of Minnesota, Minneapolis, MN, United States
Conveners:  Enrica Viparelli, University of South Carolina Columbia, Columbia, SC, United States, Roland Kaitna, BOKU University of Natural Resources and Life Sciences, Vienna, Austria and Philippe Frey, IRSTEA Grenoble, Saint Martin D'Hère Cedex, France
Index Terms:

1826 Geomorphology: hillslope [HYDROLOGY]
1862 Sediment transport [HYDROLOGY]
4302 Geological [NATURAL HAZARDS]
4460 Pattern formation [NONLINEAR GEOPHYSICS]

Abstracts Submitted to this Session:

Morgane Houssais1, Charles Maldarelli2, Mark Shattuck3 and Jeffrey F. Morris2, (1)CUNY City College of New York, New York, NY, United States, (2)CUNY City College of New York, Chemical Engineering, New York, NY, United States, (3)CUNY City College of New York, Physics, New York, NY, United States
Jennifer Gifford1, Allison I Woolsey2, Lance D Yarbrough1, Brian F. Platt1, Inoka H Widanagamage1 and Gregory L Easson3, (1)University of Mississippi Main Campus, University, MS, United States, (2)Mississippi Mineral Resources Institute (MMRI), Oxford, MS, United States, (3)Mississippi Mineral Resources Institute (MMRI), University, MS, United States
Raleigh L. Martin and Jasper F Kok, University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, CA, United States
Gary Parker, University of Illinois at Urbana Champaign, Urbana, IL, United States and Michael P Lamb, California Institute of Technology, Pasadena, CA, United States
Dylan Bentley Lee and Douglas J Jerolmack, University of Pennsylvania, Department of Earth & Environmental Science, Philadelphia, PA, United States
Irana Denissen, Anthony Thornton, Thomas Weinhart and Stefan Luding, University of Twente, Enschede, Netherlands
Nathalie M Vriend1, Matthew Arran1, Michel Yves Louge2, Anthony G Hay2 and Alexandre Valance3, (1)University of Cambridge, Cambridge, United Kingdom, (2)Cornell University, Ithaca, NY, United States, (3)University of Rennes, Physics, Rennes Cedex, France
Anna Pelosi, University of Salerno, Salerno, Italy, Rina Schumer, Desert Research Institute, Reno, NV, United States, Hongbo Ma, Rice University, Earth, Environmental and Planetary Sciences, Houston, TX, United States and Gary Parker, University of Illinois at Urbana Champaign, Urbana, IL, United States
Fiona Kwok1,2 and Lu Jing1,2, (1)Sichuan University, State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Chengdu, China, (2)The University of Hong Kong, Civil Engineering, Hong Kong, Hong Kong
Matteo Saletti, University of British Columbia, Vancouver, BC, Canada, Peter Molnar, ETH Zurich, Institute of Environmental Engineering, Zurich, Switzerland and Marwan A Hassan, Univ British Columbia, Vancouver, BC, Canada
Sanaz Borhani1, Amirreza Ghasemi2, Kimberly M Hill3 and Enrica Viparelli1, (1)University of South Carolina Columbia, Columbia, SC, United States, (2)University of Minnesota, Minnesota, United States, (3)University of Minnesota, Minneapolis, MN, United States
Anthony Thornton1, Irana Denissen1, Thomas Weinhart1 and Kasper Van der Vaart2, (1)University of Twente, Enschede, Netherlands, (2)Stanford University, Stanford, CA, United States
Ricardo Rafael Hernandez Moreira and Enrica Viparelli, University of South Carolina Columbia, Columbia, SC, United States
Kimberly M Hill1, Jared Mullenbach1, Amirreza Ghasemi2, Qingfeng Feng3 and Paul Fritton1, (1)University of Minnesota, Minneapolis, MN, United States, (2)University of Minnesota, Minnesota, United States, (3)Tsinghua University, Beijing, China
Amirreza Ghasemi1, Sanaz Borhani2, Enrica Viparelli2 and Kimberly M Hill3, (1)University of Minnesota, Minnesota, United States, (2)University of South Carolina Columbia, Columbia, SC, United States, (3)University of Minnesota, Minneapolis, MN, United States