Company Profile

Firn

Firn is partially compacted névé, a type of snow that has been left over from past seasons and has been recrystallized into a substance denser than névé. It is ice that is at an intermediate stage between snow and glacial ice. Firn has the appearance of wet sugar, but has a hardness that makes it extremely resistant to shovelling. Its density generally ranges from 0.35 g/cm3 to 0.9 g/cm3, and it can often be found underneath the snow that accumulates at the head of a glacier.

List of firns

• Antarctic Firn • Daniel Bruun Firn • Dreyer Firn • East Northwall Firn • Rink Firn • Sven Hedin Firn • West Northwall Firn == Other uses ==

Other uses

In colloquial and technical language, "firn" is used to describe certain forms of old snow, including: • old snowfields, known as Firnfelder (), even if the snow is not yet one year old • the more recent snow layers of a temperate, or "firned", glacier • used in skiing, the uppermost, soft layer of snow that is frozen overnight and, as a result of spring sunshine and high air temperatures, melts and reforms on an area of old snow or harsch (, referring to the snow's rough texture) As in the last context, a ski slope that experiences melting and refreezing into harsch is said to "firn up". In Switzerland, these slopes are called Sulz, but in Germany, Sulz more often refers to a depth at which skiing downhill is no longer enjoyable. == References ==

Source: Wikipedia ↗

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