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Snow density (ρ s) is the mass per unit volume of snow of a known volume, calculated as kg/m 3. Classification runs from very fine at below 0.2 mm to very coarse (2.0–5.0 mm) and beyond. Snow hardness (R) is the resistance to penetration of an object into snow. Most snow studies use a fist or fingers for softer snows (very soft through ...
Snow science often leads to predictive models that include snow deposition, snow melt, and snow hydrology—elements of the Earth's water cycle—which help describe global climate change. [ 1 ] Global climate change models (GCMs) incorporate snow as a factor in their calculations.
Snow hydrology is a scientific study in the field of hydrology which focuses on the composition, dispersion, and movement of snow and ice. ... Science. 135 (3505).
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.
For example, snow tires which enhance traction during harsh winter driving conditions are labelled with a snowflake on the mountain symbol. [32] A stylized snowflake has been part of the emblem of the 1968 Winter Olympics , 1972 Winter Olympics , 1984 Winter Olympics , 1988 Winter Olympics , 1998 Winter Olympics and 2002 Winter Olympics .
Snowmaking is the production of snow by forcing water and pressurized air through a "snow gun", also known as a "snow cannon". Snowmaking is mainly used at ski resorts to supplement natural snow. This allows ski resorts to improve the reliability of their snow cover and to extend their ski seasons from late autumn to early spring.
1949 - Ukichiro Nakaya publishes Research of snow (雪の研究, Yuki no kenkyu) 1952 - Marcel R. de Quervain et al. define ten major types of snow crystals, including hail and graupel in IUGG for the Swiss Federal Institute for Snow and Avalanche Research. 1954 - Harvard University Press publishes Ukichiro Nakaya's Snow Crystals: Natural and ...
In the deep ocean, marine snow (also known as "ocean dandruff") is a continuous shower of mostly organic detritus falling from the upper layers of the water column. It is a significant means of exporting energy from the light -rich photic zone to the aphotic zone below, which is referred to as the biological pump .