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Rock-ice avalanches: a systematic investigation of the influence of ice

English title Rock-ice avalanches: a systematic investigation of the influence of ice
Applicant Haeberli Wilfried
Number 121823
Funding scheme Project funding (Div. I-III)
Research institution Geographisches Institut Universität Zürich
Institution of higher education University of Zurich - ZH
Main discipline Geomorphology
Start/End 01.10.2008 - 30.06.2010
Approved amount 111'913.00
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All Disciplines (3)

Discipline
Geomorphology
Hydrology, Limnology, Glaciology
Geophysics

Keywords (13)

natural hazard; rock/ice avalanche; slope instability; landslide dynamics; runout distance; coefficient of friciton; Rock-ice avalanches; high mountains; long-runout; natural hazards; rotating drum experiments; avalanche seismicity; avalanche dynamics

Lay Summary (English)

Lead
Lay summary
During the last decades, several rock-ice avalanche events have shown their disastrous potential if they occur close to populated regions. In terms of the ongoing climate change and the supposed intensification of mass movement processes in mountainous regions, the question of the possible consequences of a large rock-ice avalanche close to populated areas as in the European Alps raises. The study consists of 3 main components: (1) numerical modelling of large rock-ice avalanches, (2) physical modelling of rock-ice mixtures in a vertically rotating drum in Vienna and Berkeley, and (3) event documentation of the most important large rock-ice avalanches around the world. The goal is to draw a coherent picture of the dynamic characteristics of such events and to quantify the effect of ice on the friction and hence on the runout distance.
Direct link to Lay Summary Last update: 21.02.2013

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