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- Polar_vortex abstract "A polar vortex is a persistent, large-scale cyclone located near either of a planet's geographical poles. On Earth, the polar vortices are located in the middle and upper troposphere and the stratosphere. They surround the polar highs and lie in the wake of the polar front. These cold-core low-pressure areas strengthen in the winter and weaken in the summer due to their reliance upon the temperature differential between the equator and the poles. They usually span less than 1,000 kilometers (620 miles) in which the air circulates in a counter-clockwise fashion (in the Northern Hemisphere). As with other cyclones, their rotation is caused by the Coriolis effect.The Northern Hemisphere vortex often has two centers, one near Baffin Island and the other over northeast Siberia. The Antarctic vortex in the Southern Hemisphere tends to be located near the edge of the Ross ice shelf near 160 west longitude. When the polar vortex is strong, the Westerlies increase in strength. When the polar cyclone is weak, the general flow pattern across mid-latitudes buckles and significant cold outbreaks occur. Ozone depletion occurs within the polar vortex, particularly over the Southern Hemisphere, and reaches a maximum in the spring.".
- Polar_vortex thumbnail November2013_polar_vortex_geopotentialheight_mean_Large.jpg?width=300.
- Polar_vortex wikiPageExternalLink concept_html?term=polar%20vortex.
- Polar_vortex wikiPageExternalLink polar_vortex.html.
- Polar_vortex wikiPageExternalLink gcc.
- Polar_vortex wikiPageExternalLink Vortex.
- Polar_vortex wikiPageExternalLink news.cfm?release=2006-137.
- Polar_vortex wikiPageExternalLink 3-2.htm.
- Polar_vortex wikiPageID "1443028".
- Polar_vortex wikiPageRevisionID "606462011".
- Polar_vortex align "right".
- Polar_vortex alt "Map of a blobs spreading from the Arcitc".
- Polar_vortex alt "Map of a compact blob over the Arctic".
- Polar_vortex caption "--01-05".
- Polar_vortex caption "The typical polar vortex configuration in November, 2013...".
- Polar_vortex hasPhotoCollection Polar_vortex.
- Polar_vortex header "The polar vortex".
- Polar_vortex image "Jan52014 polar vortex geopotentialheight mean Large.jpg".
- Polar_vortex image "November2013 polar vortex geopotentialheight mean Large.jpg".
- Polar_vortex subject Category:Arctic_geography_terminology.
- Polar_vortex subject Category:Atmospheric_dynamics.
- Polar_vortex subject Category:Baffin_Island.
- Polar_vortex subject Category:Climatology.
- Polar_vortex subject Category:Geography_of_Antarctica.
- Polar_vortex subject Category:Vortices.
- Polar_vortex type Abstraction100002137.
- Polar_vortex type Attribute100024264.
- Polar_vortex type RoundShape113865483.
- Polar_vortex type Shape100027807.
- Polar_vortex type Vortices.
- Polar_vortex type Whirl113878112.
- Polar_vortex comment "A polar vortex is a persistent, large-scale cyclone located near either of a planet's geographical poles. On Earth, the polar vortices are located in the middle and upper troposphere and the stratosphere. They surround the polar highs and lie in the wake of the polar front. These cold-core low-pressure areas strengthen in the winter and weaken in the summer due to their reliance upon the temperature differential between the equator and the poles.".
- Polar_vortex label "Polar vortex".
- Polar_vortex label "Polar vortex".
- Polar_vortex label "Polarwirbel".
- Polar_vortex label "Vortex polaire".
- Polar_vortex label "Vortice polare".
- Polar_vortex label "Vórtice polar".
- Polar_vortex label "Vórtice polar".
- Polar_vortex label "Wir polarny".
- Polar_vortex label "دوامة قطبية".
- Polar_vortex label "极地涡旋".
- Polar_vortex label "極循環".
- Polar_vortex sameAs Polarwirbel.
- Polar_vortex sameAs Vórtice_polar.
- Polar_vortex sameAs Vortex_polaire.
- Polar_vortex sameAs Pusaran_kutub.
- Polar_vortex sameAs Vortice_polare.
- Polar_vortex sameAs 極循環.
- Polar_vortex sameAs 극소용돌이.
- Polar_vortex sameAs Polar_vortex.
- Polar_vortex sameAs Wir_polarny.
- Polar_vortex sameAs Vórtice_polar.
- Polar_vortex sameAs m.051_ls.
- Polar_vortex sameAs Q1197111.
- Polar_vortex sameAs Q1197111.
- Polar_vortex sameAs Polar_vortex.
- Polar_vortex wasDerivedFrom Polar_vortex?oldid=606462011.
- Polar_vortex depiction November2013_polar_vortex_geopotentialheight_mean_Large.jpg.
- Polar_vortex isPrimaryTopicOf Polar_vortex.
