Landslides, debris flows, lahars, and other geophysical hazards can all be modeled with similar systems of partial differential equations, with common mathematical and computational challenges. This symposium will feature talks by researchers from the University of Washington, the USGS Cascades Volcano Observatory, the NOAA Center for Tsunami Research, the University of British Columbia, and several European institutions.

Please join us for any or all of the talks listed below. This symposium is the first day of a workshop on this topic. If you are interested in participating in other workshop activities, please contact the organizers: Randy LeVeque (rjl at washington dot edu) or Richard Iverson (riverson at usgs dot gov)

The symposium and workshop are supported in part by the USGS, the National Science Foundation through a VIGRE grant, and the Pacific Institute of Mathematical Sciences (PIMS).

Flier to post (pdf)

Webpage/wiki with more links and references

Schedule

8:00		Coffee
8:30		Dick Iverson and Randy LeVeque Welcoming remarks
8:40		John Eichelberger, USGS Volcano Hazards Program Coordinator, Reston, VA Goals of the USGS volcano hazards program
9:00		Peter Mackenzie, Greg Miller, Pedro Arduino, and Wookuen Shin, University of Washington 3D simulation of landslides and debris flows using the material point method
9:20		Yoel Forterre, University of Marseille, France Rheology of dry and wet dense granular media: application to gravity flows  [slides]
9:40		Julia Kowalski,Swiss Federal Institute for Snow and Avalanche Research, Davos, Switzerland Depth-averaged multi-component flow  [slides]
10:00		Richard Iverson, USGS Cascades Volcano Observatory, Vancouver, WA Elements of an improved depth-averaged model of debris-flow motion  [slides]
10:20		Break
11:00		Anne Mangeney, Institut de Physique du Globe de Paris, France The high mobility of avalanches on Earth and on Mars
11:20		Nico Gray, University of Manchester, Great Britain Particle-size segregation in granular avalanches
11:40		Anthony Thornton, University of Manchester, Great Britain Segregation mobility feedback in geophysical flows
12:00		George Bergantz, University of Washington Modeling large-scale, multiphase geological flows with strong time dependence, a review of successes, failures and cautions about validation
12:20		Lunch
2:00		Christophe Ancey and Martin Rentschler, EPF Lausanne, Switzerland Simulating viscoplastic avalanches, a general overview on the numerical simulation of carbopol avalanches
2:20		Oldrich Hungr, University of British Columbia, Vancouver, BC The role of internal friction and treatment of numerical instability in shallow flow modelling of granular flow  [slides]
2:40		Steve Cochard, University of British Columbia, Vancouver, BC Measurements of the free-surface viscoplastic flow in the dam-break experiment
3:00		E.D. Fernandez-Nieto, University of Sevilla, Spain (joint work with D. Bresch, I. Ionescu, P. Vigneaux) A new shallow Bingham model for dense avalanches. Numerical approach by a "well-balanced" Augmented-Lagrangian/Finite-Volume method  [slides]
3:20		Break
4:00		Carlos Pares and Manuel Castro, University of Malaga, Spain High order finite volume numerical schemes for nonconservative models: applications to geophysical flows  [slides]
4:20		Roger Denlinger and David George, USGS Cascades Volcano Observatory, Vancouver, WA Computation of Large Scale Geophysical Flows: Part I: Introduction and Examples  [slides]
4:40		Roger Denlinger and David George, USGS Cascades Volcano Observatory, Vancouver, WA Computation of Large Scale Geophysical Flows: Part II: Computational Issues  [slides]
5:00		Hangqiang Zhou, NOAA Center for Tsunami Research, Seattle Dispersive Effects in the Submarine-Landslide-Generated Tsunamis
5:30 -- 7:30		Reception