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Color, temperature, and water equivalent
- Snow is an accumulation of packed ice crystals, and the condition of the snowpack determines a variety of qualities, such as color, temperature, and water equivalent. As weather conditions change, the snowpack can change as well, and this affects the characteristics of the snow.
nsidc.org/learn/parts-cryosphere/snow/science-snow
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What are the physical properties of snow?
How does weather affect the characteristics of snow?
Why is snow a hot material?
What are the properties of snow ice & permafrost?
Jan 1, 2014 · Physical properties of snow. Variables such as density, albedo, light e -folding depth, specific surface area (SSA), crystal size and shape, thermal conductivity, permeability, diffusivity, and shear resistance are required for a complete physical description of the snowpack.
- florent@lgge.obs.ujf-grenoble.fr
This chapter discusses the physical properties of snow as the habitat and regulator of the snow ecosystem. In this sense, the physical snow cover may be perceived not only as the medium but also as the mediator of the snow ecosystem that transmits and modifies interactions between microorganisms, plants, animals, nutrients, atmosphere, and soil.
Jan 1, 2021 · The material properties of snow, ice, and permafrost vary over many orders of magnitude. Generally, ice has the smallest range in physical and thermal properties (e.g., density or thermal conductivity), while properties of snow and frozen ground have much larger variations.
- Lukas U. Arenson, William Colgan, Hans Peter Marshall
- 2015
Some mechanical properties of snow are familiar, others less so. Anyone who has post-holed through deep snow knows that the fluffier the snow (more air and less ice), the farther they will sink. It is not the weight (force) that the snow has to support, but rather the pressure (force per unit area) that matters most.
Thus, at any one time, the type and state of the snow forming a layer have to be defined because its physical and mechanical properties depend on them. Physical properties include microstructure, grain size and shape, snow density, liquid water content, and temperature. [4]
Its physical properties, such as strength or thermal conductivity, depend on the structure of the sponge-like network in which the ice crystals are arranged. We investigate this three-dimensional structure in a cold laboratory using computed tomography .
How snow forms. Snow is an accumulation of packed ice crystals, and the condition of the snowpack determines a variety of qualities, such as color, temperature, and water equivalent. As weather conditions change, the snowpack can change as well, and this affects the characteristics of the snow.
