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Frost is a thin layer of ice on a solid surface, which forms from water vapor that deposits onto a freezing surface. Frost forms when the air contains more water vapor than it can normally hold at a specific temperature. The process is similar to the formation of dew, except it occurs below the freezing point of water typically without crossing ...
Ground frost in the highest town in Venezuela, Apartaderos (Mérida state). Because its location in an alpine tundra ecosystem called páramo, they often undergo a sudden and drastic change in a daily freeze-and-thaw cycle, sometimes described as "summer every day and winter every night." Ground frost refers to the various coverings of ice ...
Soft rime is a white ice deposition that forms when the water droplets in light freezing fog or mist freeze to the outer surfaces of objects during calm or light wind. The fog usually freezes to the windward side of solid objects, particularly those with a likeness to that of tree branches and wires. Soft rime is similar in appearance to hoar ...
The word winter comes from an old Germanic word for “time of water,” a reference to the heavy rain and snow this time of year, according to the Encyclopedia Britannica. Winter extends from the ...
This page was last edited on 12 October 2014, at 23:18 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike License 4.0; additional terms may apply.
Starting as a powdery deposition, snow becomes more granular when it begins to compact under its own weight, be blown by the wind, sinter particles together and commence the cycle of melting and refreezing. Water vapor plays a role as it deposits ice crystals, known as hoar frost, during cold, still conditions. [54]
When the Sun approaches its lowest point in the sky, the temperature drops and hoar frost forms on the top layer. Buried under the snow of following years, the coarse-grained hoar frost compresses into lighter layers than the winter snow. As a result, alternating bands of lighter and darker ice can be seen in an ice core. [10]
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. Snow can be classified by describing the weather event that is producing it, the shape of its ice crystals or flakes, how it ...