Walter Steinkogler

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Publications associées (5)

Thermal energy in dry snow avalanches

Michael Lehning, Walter Steinkogler

Avalanches can exhibit many different flow regimes from powder clouds to slush flows. Flow regimes are largely controlled by the properties of the snow released and entrained along the path. Recent investigations showed the temperature of the moving snow t ...

Copernicus Gesellschaft Mbh2015

Granulation of snow: From tumbler experiments to discrete element simulations

Michael Lehning, Walter Steinkogler, Betty Sovilla, Johan Alexandre Philippe Gaume

It is well known that snow avalanches exhibit granulation phenomena, i.e., the formation of large and apparently stable snow granules during the flow. The size distribution of the granules has an influence on flow behavior which, in turn, affects runout di ...

2015

Influence of snow cover properties on avalanche dynamics

Walter Steinkogler

Snow avalanches are a direct thread to many mountain communities around the world and already small avalanches can endanger traffic routes and result in loss of life or property. Their destructive power depends, among other things, on the overall mass and ...

EPFL2015

Influence of snow cover properties on avalanche dynamics

Michael Lehning, Walter Steinkogler, Betty Sovilla

The destructive power of an avalanche depends, among other things, on the overall mass and the snow conditions in the avalanche path. So far, the knowledge on the effect of snow conditions on avalanche behavior is limited and largely qualitative. We invest ...

Elsevier Science Bv2014

Mapping frequencies of icing on structures in Switzerland

Michael Lehning, Thomas Grünewald, Walter Steinkogler, Philippe Steiner

Icing of structures is a problem for wind energy production in cold regions and makes careful planning of new projects essential. This study presents and evaluates a method to create a map showing the frequency of meteorological icing in Switzerland. Icing ...

2012

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