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polar environment

См. также в других словарях:

  • Polar ecology — is the relationship between plants and animals in a polar environment. Polar environments are in the Arctic and Antarctic regions. Arctic regions are in the northern hemisphere, and it contains land and the islands that surround it. Antarctic is… …   Wikipedia

  • Polar wind — is the permanent outflow of ionization from the polar regions of the magnetosphere. [http://amsglossary.allenpress.com/glossary/browse?s=p p=43 AMS Glossary] ] Ionospheric Plasma SourceThe ‘ground state’ of the ionosphere consists of the baseline …   Wikipedia

  • Polar Bear Pass — is a 262,400 hectare wetland and mountain pass on Bathurst Island in Nunavut, Canada, and an International Biological Program site. It was designated a Ramsar site on May 24, 1982,Cite web url=http://www.mb.ec.gc.ca/nature/whp/ramsar/df02s02.en.ht… …   Wikipedia

  • environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …   Universalium

  • Polar bear — This article is about the animal. For other uses, see Polar bear (disambiguation) …   Wikipedia

  • polar ecosystem — Introduction       complex of living organisms in polar regions such as polar barrens and tundra.  Polar barrens and tundra are found at high latitudes on land surfaces not covered by perpetual ice and snow. These areas lying beyond the tree line …   Universalium

  • Polar ice packs — [ NOAA Projected Arctic changes] Polar ice packs are large areas of pack ice formed from seawater in the Earth s polar regions, known as polar ice caps: the Arctic ice pack (or Arctic ice cap) of the Arctic Ocean and the Antarctic ice pack of the …   Wikipedia

  • Polar region — Earth s polar regions are the areas of the globe surrounding the poles also known as frigid zones. The North Pole and South Pole being the centers, these regions are dominated by the polar ice caps, resting respectively on the Arctic Ocean and… …   Wikipedia

  • Polar Cap Absorption — Beziehung von Ionosphäre und Erdatmosphäre Elektronendichte und Ionenzusammensetzung in den oberen Ionosphärenschichten …   Deutsch Wikipedia

  • Polar vortex — The polar vortex is a persistent, large scale cyclone located near the Earth s poles, in the middle and upper troposphere and the stratosphere. It surrounds the polar highs and is part of the polar front. Arctic and Antarctic variationThe vortex… …   Wikipedia

  • Polar ice cap — A polar ice cap is a high latitude region of a planet or moon that is covered in ice. There are no requirements with respect to size or composition for a body of ice to be termed a polar ice cap, nor any geological requirement for it to be over… …   Wikipedia

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