Rime ice

Common card · No. 239931

Rime ice is a solid form of atmospheric deposition, a certain kind of ice created when supercooled water droplets freeze onto surfaces. In the atmosphere, there are three basic types of rime ice: Soft rime forms when supercooled water freezes under calm wind conditions. It is milky and crystalline, like sugar, and similar to hoar frost. Hard rime forms by rapid freezing of supercooled water under at least moderate wind conditions. The droplets freeze more or less individually, leaving air gaps. Clear ice forms by slow freezing of supercooled water. Clear ice is typically transparent and homogeneous. Its amorphous and dense structure makes it adhesive. Soft and hard rime are less dense than clear ice and less adhesive, thus generally causing less damage. Glaze ice is similar in appearance to clear ice, but results from a completely different process, occurring during freezing rain or drizzle. Rime ice also forms when ice forms on the surface of an aircraft, particularly on the leading edges...

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