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permafrost area

См. также в других словарях:

  • permafrost — /perr meuh frawst , frost /, n. (in arctic or subarctic regions) perennially frozen subsoil. Also called pergelisol. [1943; PERMA(NENT) + FROST] * * * Perennially frozen earth, with a temperature below 32 °F (0 °C) continuously for two years or… …   Universalium

  • Permafrost — This article is about frozen ground. For other uses, see Permafrost (disambiguation). In geology, permafrost, cryotic soil or permafrost soil is soil at or below the freezing point of water (0 °C or 32 °F) for two or more years. Ice is not always …   Wikipedia

  • sporadic permafrost —    The area near the southern boundary of discontinuous permafrost where permafrost occurs in isolated patches or islands.    Compare: continuous permafrost, discontinuous permafrost.    NRC …   Glossary of landform and geologic terms

  • Sápmi (area) — Sápmi …   Wikipedia

  • Tundra — In physical geography, tundra is an area where the tree growth is hindered by low temperatures and short growing seasons. The term tundra comes from Kildin Sami tūndâr uplands, tundra, treeless mountain tract . There are two types of tundra:… …   Wikipedia

  • pingo — /ping goh/, n., pl. pingos. Geol. 1. a hill of soil covered ice pushed up by hydrostatic pressure in an area of permafrost. 2. a hill of similar origin remaining after the melting of permafrost. [1925 30; < Inuit pinguq] * * * ▪ hill       dome… …   Universalium

  • Aufeis — (German for ice on top ) is a sheet like mass of layered ice that forms from successive flows of ground water during freezing temperatures. This form of ice is also called icings or, by the Russian term, naled. According to E. de K. Leffingwell… …   Wikipedia

  • Qamanirjuaq Lake — Infobox lake lake name = Qamanirjuaq Lake image lake = caption lake = image bathymetry = caption bathymetry = location = Kivalliq Region, Nunavut coords = coord|63|00|00|N|95|45|00|W|region:CA type:waterbody|display=inline,title type = inflow… …   Wikipedia

  • rock glacier —    A mass of poorly sorted angular boulders and fine material, with interstitial ice a meter or so below the surface (ice cemented) or containing a buried ice glacier (ice cored). It occurs in a permafrost area, and is derived from a cirque wall… …   Glossary of landform and geologic terms

  • arctic — arctically, adv. /ahrk tik/ or, esp. for 7, /ahr tik/, adj. 1. (often cap.) of, pertaining to, or located at or near the North Pole: the arctic region. 2. coming from the North Pole or the arctic region: an arctic wind. 3. characteristic of the… …   Universalium

  • boreal forest — ▪ northern forest Introduction also called  taiga        vegetation composed primarily of cone bearing, needle leaved, or scale leaved evergreen trees, found in regions that have long winters and moderate to high annual precipitation.       The… …   Universalium

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