EP33A:
From Granular Physics to Geomorphology: Scaling Surface Processes Beyond the Continuum I


Submit an Abstract to this Session


Session ID#: 61847

Session Description:
Modeling planetary surface processes from channel dynamics to erosion of landscapes is typically performed using a continuum framework. However, efforts to advance our representation of particle scale phenomenology within continuum models are increasingly common. In recent decades, experiments, field observations, and model efforts have supported incorporating the dynamics of discrete particle interactions in the form of what is sometimes referred to as “granular physics” in modeling the evolution of landscapes. Other advances have highlighted complimentary methods for incorporating particle-scale behavior including tracer particle behavior, fractional advection-diffusion models, nonlocal transport, and other approaches that describe the stochastic and probabilistic elements of particle transport, deposition, and erosion at either grain- or macroscopic scales. This session welcomes contributions from physical experiments, field work and modeling work that highlight particle scale dynamics in earth and planetary surface processes as well as the upscaling of these dynamics into continuum-like frameworks capable of representing large-scale systems.
Primary Convener:  Kimberly M Hill, University of Minnesota, Minneapolis, MN, United States
Conveners:  Danica L Roth, University of Oregon, Eugene, OR, United States, Matteo Saletti, ETH Swiss Federal Institute of Technology Zurich, Zürich, Switzerland and Tyler Doane, PhD, University of Arizona, Tucson, United States
Primary Liaison:  Tyler Doane, PhD, University of Arizona, Tucson, United States
Chairs:  Tyler Doane, PhD, University of Arizona, Tucson, United States and Danica L Roth, University of Oregon, Eugene, OR, United States
OSPA Liaison:  Tyler Doane, PhD, University of Arizona, Tucson, United States
Co-Organized with:
Earth and Planetary Surface Processes, and Hydrology

Cross-Listed:
  • H - Hydrology
  • NG - Nonlinear Geophysics
  • NH - Natural Hazards
  • P - Planetary Sciences

Proposed Co-Organized Session with:
  • H - Hydrology
  • H - Hydrology
Index Terms:

1815 Erosion [HYDROLOGY]
1824 Geomorphology: general [HYDROLOGY]
1862 Sediment transport [HYDROLOGY]
3265 Stochastic processes [MATHEMATICAL GEOPHYSICS]

Abstracts Submitted to this Session:

Implications of stochastic sediment transport for storage of signals in stratigraphy (Invited) (447026)
Kyle M Straub, Tulane University, Department of Earth and Environmental Sciences, New Orleans, United States, Brady Foreman, University of Minnesota Twin Cities, Minneapolis, United States and Qi Li, Georgia Institute of Technology, Atlanta, GA, United States
The causes and consequences of a temporally variable threshold for motion for fluvial bedload transport (Invited) (372815)
Claire C Masteller1, Noah J Finnegan2, Joel P L P Johnson3, Jens Martin Turowski1, Elowyn Yager4 and Dieter Rickenmann5, (1)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, (2)University of California - Santa Cruz, Department of Earth and Planetary Sciences, Santa Cruz, United States, (3)University of Texas at Austin, Department of Earth and Planetary Sciences, Jackson School of Geosciences, Austin, TX, United States, (4)University of Idaho, Center for Ecohydraulics Research, Moscow, ID, United States, (5)WSL Swiss Federal Institute for Forest, Snow and Landscape Research, Birmensdorf, Switzerland
The (in)stability of bedform geometry: observations of bedload transport patterns on the sub-bedform scale (410420)
Kate Potter Leary, University of California Santa Barbara, Santa Barbara, CA, United States; New Mexico Institute of Mining and Technology, Socorro, NM, United States and Mark Schmeeckle, Arizona State University, School of Geographical Sciences and Urban Planning, Tempe, AZ, United States
Direct Observation of Heavy-Tailed Storage Times of Bed Load Tracer Particles Causing Anomalous Superdiffusion (467565)
D. Nathan Bradley, Bureau of Reclamation Denver, Sedimentation and River Hydraulics, Denver, CO, United States
Rock and Roll: Passive and automated sensing of fluvial bedload and wood transport (431694)
Georgina Lucy Bennett, University of East Anglia, Norwich, United Kingdom, Sandra E Ryan, U.S. Forest Service, Rocky Mountain Research Station, Fort Collins, United States and Miles Clark, University of East Anglia, School of Environmental Sciences, Norwich, United Kingdom
An Alternative Hypothesis for the Source of Scatter Found in the Validation of Incipient Motion Criteria (465506)
Brandon J Dillon, Virginia Tech, Blacksburg, VA, United States and Kyle Strom, Virginia Tech, Civil Engineering, Blacksburg, United States
A Stochastic Cellular Model of Hillslope Morphology and Evolution (381139)
Gregory E Tucker, University of Colorado Boulder, CIRES and Department of Geological Sciences, Boulder, United States, Scott W McCoy, University of Nevada Reno, Department of Geological Sciences and Engineering, Reno, United States and Daniel E. J. Hobley, Univ of Colorado, Boulder, CO, United States
A probabilistic physical interpretation of luminescence in soils with applications to sediment tracing and soil mixing. (364362)
Harrison J Gray1, Amanda Keen-Zebert2, David Jon Furbish3 and Shannon Mahan1, (1)U.S. Geological Survey, Geosciences and Environmental Change Science Center, Denver, United States, (2)Desert Research Institute Reno, Reno, NV, United States, (3)Vanderbilt University, Earth and Environmental Sciences, Nashville, United States
Ensemble distributions of particle hop distance and travel time over equilibrium Dunes (372871)
Thomas Ashley, Virginia Tech, Civil Engineering, Blacksburg, VA, United States, Prof. Robert Mahon, PhD, University of Wyoming, Laramie, United States, Suleyman Naqshband, Wageningen University, Environmental Sciences, Wageningen, Netherlands, Kate Potter Leary, New Mexico Institute of Mining and Technology, Socorro, NM, United States and Brandon J McElroy, University of Wyoming, Geology and Geophysics, Laramie, WY, United States

See more of: Earth and Planetary Surface Processes