permafrost top

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• 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

• continuous permafrost —   within the Arctic Circle average temperatures rarely rise above zero. Water in the ground generally remains frozen apart from some superficial summer melting of perhaps the top few centimeters. The permafrost can be several hundred metres deep… …   Geography glossary

• Russia — /rush euh/, n. 1. Also called Russian Empire. Russian, Rossiya. a former empire in E Europe and N and W Asia: overthrown by the Russian Revolution 1917. Cap.: St. Petersburg (1703 1917). 2. See Union of Soviet Socialist Republics. 3. See Russian… …   Universalium

• List of Russian people — The Millennium of Russia monument in Veliky Novgorod, featuring the statues and reliefs of the most celebrated people in the first 1000 years of Russian history …   Wikipedia

• Construction of the Trans-Alaska Pipeline System — The construction of the Trans Alaska Pipeline System was a massive undertaking involving tens of thousands of people often in extreme temperatures and conditions. Specialized construction techniques were pioneered to build the pipeline, most of… …   Wikipedia

• Active layer — In environments containing permafrost, the active layer is the top layer of soil that thaws during the summer and freezes again during the autumn. In all climates, whether they contain permafrost or not, the temperature in the lower levels of the …   Wikipedia

• Climate change in Russia — describes the global warming related issues in Russia. This includes the climate politics, contribution in the global warming and the influence of the global warming in Russia. In 2009 Russia was ready to decline emissions 20 25 % from 1990… …   Wikipedia

• List of Russian explorers — The Russian Empire at its peak in 1866, including the spheres of influence; this territorial expansion largely corresponds to the extent of contiguous exploration by Russians. This is a list of explorers from the Russian Federation, Soviet Union …   Wikipedia

• Talik — For the Israeli general named Talik, see Israel Tal. A talik (from the Russian Language talik, derived from the verb tait, to melt) is a layer of year round unfrozen ground that lies in permafrost areas. In regions of continuous permafrost,… …   Wikipedia

• Drunken trees — Not to be confused with the floss silk tree, also known as the drunken tree or palo borracho. A drunken forest in Siberia caused by melting permafrost. NASA photo. Drunken trees, tilted trees, or a drunken forest, is a stand of trees displaced… …   Wikipedia