cold permafrost
Remains below 30° F, and which may be as low as 10° F as on the North Slope; tolerates introduction of considerable heat without thawing.

Pipeline dictionary. 2013.

Look at other dictionaries:

  • 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 — вечная мерзлота. Any rock or soil material that has remained below 32°F continuously for two or more years. cold permafrost ice rich permafrost thaw stable permafrost thaw unstable permafrost warm permafrost …   Pipeline dictionary

  • Cold Regions Research and Engineering Laboratory — Established 1 February 1961 (1 February 1961) Research Type …   Wikipedia

  • 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

  • permafrost — per|ma|frost [ˈpə:məfrɔst US ˈpə:rməfro:st] n [U] [Date: 1900 2000; Origin: permanent + frost] a layer of soil that is always frozen in countries where it is very cold …   Dictionary of contemporary English

  • permafrost — noun (U) a layer of soil, in very cold countries, that is always frozen …   Longman dictionary of contemporary English

  • International Permafrost Association — The International Permafrost Association (IPA), founded in 1983, has as its objectives to foster the dissemination of knowledge concerning permafrost and to promote cooperation among persons and national or international organisations engaged in… …   Wikipedia

  • Geography of the Soviet Union — The Soviet Union was located in the middle and northern latitudes of the Northern Hemisphere. Slightly less than 2.5 times the landmass of the United States, it was a continental sized country only slightly smaller than the whole of North America …   Wikipedia

  • Salekhard–Igarka Railway — Transpolar Mainline Legend …   Wikipedia

  • 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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