Publications related to Avalanche

Wind Transport of Snow Impacts Ka- and Ku-band Radar Signatures on Arctic Sea Ice

Marc Schneebeli Zeugin, David Nicholas Wagner

Wind transport alters the snow topography and microstructure on sea ice through snow redistribution controlled by deposition and erosion. The impact of these processes on radar signatures is poorly understood. Here, we examine the effects of snow redistrib ...

2022

Convection of water vapour in snowpacks

Varun Sharma, Michael Lehning, Mahdi Jafari

This paper studies numerically the convection of water vapour in snowpacks using an Eulerian-Eulerian two-phase approach. The convective water vapour transport in snow and its effects on snow density are often invoked to explain observed density profiles, ...

CAMBRIDGE UNIV PRESS2022

Different erosion and entrainment mechanisms in snow avalanches

Johan Alexandre Philippe Gaume, Betty Sovilla, Xingyue Li

Erosion significantly affects the dynamics of gravity-driven mass flows. In snow avalanches, the snow cover can be substantially eroded but only partially entrained, however, there are very limited investigations to substantiate this difference. Here, we s ...

PERGAMON-ELSEVIER SCIENCE LTD2022

High-speed imaging of snow saltation: wind tunnel experiments using natural snow

Michael Lehning, Daniela Brito Melo, Benjamin Andreas Walter

Drifting snow is a multi-scale process. It is composed of particles rolling and sliding along the surface, particles in saltation following short ballistic trajectories in the first 10 cm above the surface and particles in suspension at higher regions of t ...

2022

Three-dimensional and real-scale modeling of flow regimes in dense snow avalanches

Johan Alexandre Philippe Gaume, Betty Sovilla, Xingyue Li

Snow avalanches cause fatalities and economic loss worldwide and are one of the most dangerous gravitational hazards in mountainous regions. Various flow behaviors have been reported in snow avalanches, making them challenging to be thoroughly understood a ...

2021

Mechanisms of slab avalanche release and impact in the Dyatlov Pass incident in 1959

Johan Alexandre Philippe Gaume

The Dyatlov Pass incident is an intriguing unsolved mystery from the last century. In February 1959, a group of nine experienced Russian mountaineers perished during a difficult expedition in the northern Urals. A snow avalanche hypothesis was proposed, am ...

SPRINGERNATURE2021

Evaluating a prediction system for snow management

Michael Lehning

The evaluation of snowpack models capable of accounting for snow management in ski resorts is a major step towards acceptance of such models in supporting the daily decision-making process of snow production managers. In the framework of the EU Horizon 202 ...

COPERNICUS GESELLSCHAFT MBH2021

A review in snow saltation dynamics and its implications for the surface mass balance

Varun Sharma, Michael Lehning, Franziska Gerber, Daniela Brito Melo, Francesco Comola, Armin Sigmund

Snow covered regions are frequently subjected to strong winds. This leads to the erosion of the snow surface and the occurrence of drifting and blowing snow events. To correctly predict and model these phenomena is of the utmost importance to assess snowpa ...

2021

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Avalanche

Wind Transport of Snow Impacts Ka- and Ku-band Radar Signatures on Arctic Sea Ice

Convection of water vapour in snowpacks

Water vapor transport in snowpacks

Different erosion and entrainment mechanisms in snow avalanches

High-speed imaging of snow saltation: wind tunnel experiments using natural snow

Three-dimensional and real-scale modeling of flow regimes in dense snow avalanches

Pressure on obstacles induced by granular snow avalanches

Mechanisms of slab avalanche release and impact in the Dyatlov Pass incident in 1959

Evaluating a prediction system for snow management

A review in snow saltation dynamics and its implications for the surface mass balance

Graph Chatbot

Chat with Graph Search

High-speed imaging of snow saltation: wind tunnel experiments using natural snow

Wind Transport of Snow Impacts Ka- and Ku-band Radar Signatures on Arctic Sea Ice

Different erosion and entrainment mechanisms in snow avalanches

Three-dimensional and real-scale modeling of flow regimes in dense snow avalanches

Convection of water vapour in snowpacks

Evaluating a prediction system for snow management

Water vapor transport in snowpacks

Mechanisms of slab avalanche release and impact in the Dyatlov Pass incident in 1959

A review in snow saltation dynamics and its implications for the surface mass balance

Pressure on obstacles induced by granular snow avalanches