Rapid flow of snow down a slope, such as a hill or mountain.- Avalanche
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Form of mass wasting involving "very rapid to extremely rapid surging flow" of debris that has become partially or fully liquified by the addition of significant amounts of water to the source material.
Some broad mudflows are rather viscous and therefore slow; others begin very quickly and continue like an avalanche.
Avalanche control or avalanche defense activities reduce the hazard avalanches pose to human life, activity, and property.
Natural phenomenon that might have a negative effect on humans and other animals, or the environment.
There are 18 natural hazards included in the National Risk Index of FEMA: avalanche, coastal flooding, cold wave, drought, earthquake, hail, heat wave, hurricane (tropical cyclone), ice storm, landslide, lightning, riverine flooding, strong wind, tornado, tsunami, volcanic activity, wildfire, winter weather.
Landslides, also known as landslips, are several forms of mass wasting that may include a wide range of ground movements, such as rockfalls, deep-seated slope failures, mudflows, and debris flows.
An avalanche, similar in mechanism to a landslide, involves a large amount of ice, snow and rock falling quickly down the side of a mountain.
Snowpack forms from layers of snow that accumulate in geographic regions and high elevations where the climate includes cold weather for extended periods during the year.
Assessing the formation and stability of snowpacks is important in the study and prediction of avalanches.
Type of landslide caused by rock failure in which part of the bedding plane of failure passes through compacted rock and material collapses en masse and not in individual blocks.
Fast-flowing rock slides or debris slides behave similarly to snow avalanches, and are often referred to as rock avalanches or debris avalanches.
Snow comprises individual ice crystals that grow while suspended in the atmosphere—usually within clouds—and then fall, accumulating on the ground where they undergo further changes.
A sub-specialty is avalanches, which are of concern to engineers and outdoors sports people, alike.
Resort developed for skiing, snowboarding, and other winter sports.
With enough excess water, the likelihood of landslides and avalanches may be drastically higher.
A powder snow avalanche is a type of avalanche where snow grains are largely or completely suspended and moved by air in a state of fluid turbulence.
Steepest angle of descent or dip relative to the horizontal plane to which a material can be piled without slumping.
It is also commonly used by mountaineers as a factor in analysing avalanche danger in mountainous areas.