| Some discussions on Arctic vortex |
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| 作者姓名： | 李海 孙兰涛 吴辉碇 李响 |
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| 作者单位： | [1]National Marine Environment Forecast Center, Beijing, 100081, China [2]SOA Key Laboratory for Polar Science, Polar Research Institute of China, Shanghai 200136, China [3]Department of Atmospheric Sciences, University of Illinois, Illinois, 61801, USA [4]Physical Oceanography Laboratory, Ocean University of China, Qingdao 266003, China |
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| 基金项目： | 北京大学校科研和教改项目;中国科学院基金 |
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| 摘 要： | The Arctic vortex is a persistent large-scale cyclonic circulation in the middle and upper troposphere and the stratosphere. Its activity and variation control the semi-permanent active centers of Pan-Arctic and the short-time cyclone activity in the subarctic areas. Its strength variation, which directly relates to the atmosphere, ocean, sea ice and ecosystem of the Arctic, can affect the lower atmospheric circulation, the weather of subarctic area and even the weather of middle latitude areas. The 2003 Chinese Second Arctic Research Expedition experienced the transition of the stratosphereic circulation from a warm anticyclone to a cold cyclone during the ending period of Arctic summertime, a typical establishing process of the polar vortex circulation. The impact of the polar vortex： variation on the low-level circulation has been investigated by some scientists through studying the coupling mechanisms of the stratosphere and troposphere. The impact of the Stratospheric Sudden Warming （SFW） events on the polar vortex variation was drawing people＇s great attention in the fifties of the last century. The Arctic Oscillation （ AO）, relating to the variation of the Arctic vortex, has been used to study the impact of the Arctic vortex on climate change. The recent Arctic vortex studies are simply reviewed and some discussions on the Arctic vertex are given in the paper. Some different views and questions are also discussed.
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| 关 键 词： | 北极 极地 涡旋 振荡 平流层 |
| 收稿时间： | 2006-05-01 |
Some discussions on Arctic vortex |
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| Li Hai,Sun Lantao,Wu Huiding,Li Xiang.Some discussions on Arctic vortex[J].Chinese Journal of Polar Science,2006,17(1):69-80. |
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| Authors: | Li Hai Sun Lantao Wu Huiding Li Xiang |
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| Abstract: | The Arctic vortex is a persistent large-scale cyclonic circulation in the middle and upper troposphere and the stratosphere. Its activity and variation control the semi-permanent active centers of Pan-Arctic and the short-time cyclone activity in the subarctic areas. Its strength variation, which directly relates to the atmosphere, ocean, sea ice and ecosystem of the Arctic, can affect the lower atmospheric circulation, the weather of subarctic area and even the weather of middle latitude areas. The 2003 Chinese Second Arctic Research Expedition experienced the transition of the stratosphereic circulation from a warm anticyclone to a cold cyclone during the ending period of Arctic summertime, a typical establishing process of the polar vortex circulation. The impact of the polar vortex variation on the low-level circulation has been investigated by some scientists through studying the coupling mechanisms of the stratosphere and troposphere. The impact of the Stratospheric Sudden Warming (SFW) events on the polar vortex variation was drawing people's great attention in the fifties of the last century. The Arctic Oscillation (AO), relating to the variation of the Arctic vortex, has been used to study the impact of the Arctic vortex on climate change. The recent Arctic vortex studies are simply reviewed and some discussions on the Arctic vertex are given in the paper. Some different views and questions are also discussed. |
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| Keywords: | Arctic Polar Vortex Arctic Oscillation Stratosphere and Troposphere Climate Change |
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