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Clear ice

  Clear ice refers to a solid precipitation which forms when air temperature is between 0 °C (32 °F) and -3 °C (27 °F) and there are supercooled, relatively large drops of water (from freezing fog). A rapid accretion and a slow dissipation of latent heat of fusion favour the formation of a transparent ice coating, without air or other impurities. A similar phenomenon occurs when freezing rain or drizzle hit a surface and is called glaze.

Clear ice, when formed on the ground, is often called Black ice, and can be extremely hazardous.

Clear ice differs from hard rime because this one is more homogeneous; like rime, however, clear ice deposits preferentially on branches and overhead lines, where is particularly dangerous due to its relative high density.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Clear_ice". A list of authors is available in Wikipedia.
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