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Snow accumulation on ground and in tree branches in Germany Snow blowing across a highway in Canada Spring snow on a mountain in France. Classifications of snow describe and categorize the attributes of snow-generating weather events, including the individual crystals both in the air and on the ground, and the deposited snow pack as it changes over time.
A White House decoration volunteer throws fake snow onto a Christmas tree at the White House. Fake snow is any product which simulates the appearance and texture of snow, without being made from frozen crystalline water. Fake snow has been made from many materials. In the early 1900s, decorative snow was sometimes made from borax flakes and ...
"Sugar snow" as a layer in a snowpack Depth hoar crystals, imaged with light and with scanning electron microscopy Sugar snow - panoramio. Depth hoar, also called sugar snow [1] or temperature gradient snow (or TG snow), [2] are large snow-crystals occurring at the base of a snowpack that form when uprising water vapor deposits, or desublimates, onto existing snow crystals.
Snowpack is an accumulation of snow that compresses with time and melts seasonally, often at high elevation or high latitude. [1] [2] Snowpacks are an important water resource that feed streams and rivers as they melt, sometimes leading to flooding. Snowpacks provide water to down-slope communities for drinking and agriculture. [3]
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. They are particle-laden gravity currents [ 1 ] and closely related to turbidity currents , pyroclastic flows from volcanoes and dust storms in the desert.
Snow can be compacted to form a snow road and be part of a winter road route for vehicles to access isolated communities or construction projects during the winter. [78] Snow can also be used to provide the supporting structure and surface for a runway, as with the Phoenix Airfield in Antarctica. The snow-compacted runway is designed to ...
[10] [11] Powder skis use a design with wide tips and shorter tail lengths. [12] Powder skis typically feature wide tips, ranging from 140 to 155 millimeters. The tails are slightly more tapered, often within a 125- to 140-millimeter range. This design helps powder skis remain buoyant in snow. The contours and proportions of a ski's tip, waist ...
Rock flour from glacial melt enters Lake Louise, Canada Rock flour intensifies the water's hue at Hokitika Gorge on the West Coast of New Zealand. Rock flour, or glacial flour, consists of fine-grained, silt-sized particles of rock, generated by mechanical grinding of bedrock by glacial erosion or by artificial grinding to a similar size.