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Preferred term

permafrost

Is replaced by

permafrost

Definition

[Henderson's] n. a layer of permanently frozen soil, usually sub-surface, which occurs where temperatures are low enough, and which is a feature of the tundra in polar regions. It is generally covered in warmer months with a thin partially melted layer, which in the tundra supports a vegetation of mosses, lichens, grasses and small herbaceous plants. The permafrost layer may be up to hundreds of metres thick.

Broader concept

deprecated concept

Note

[controlled by ] Heikki Hamalainen

Scope note

US LTER controlled vocabulary

Creator

herbert.schentz@umweltbundesamt.at

URI

http://vocabs.lter-europe.net/EnvThes/USLterCV_408

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Created 3/31/16, last modified 3/21/22

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