极地研究（英文版）2006，Vol.17Issue(1)：69-80,12.
Some discussions on Arctic vortex
Some discussions on Arctic vortex
摘要
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.关键词
Arctic/Polar Vortex/Arctic Oscillation/Stratosphere and Troposphere/Climate ChangeKey words
Arctic/Polar Vortex/Arctic Oscillation/Stratosphere and Troposphere/Climate Change分类
天文与地球科学引用本文复制引用
Li Hai,Sun Lantao,Wu Huiding,Li Xiang..Some discussions on Arctic vortex[J].极地研究（英文版）,2006,17(1):69-80,12.基金项目
Acknowledgements This paper was reviewed and many valuable suggestions were given by professor Jiang Shangcheng from Physical College of Beijing University and research professor Lu Longhua from Chinese Academy of Meteorologic Science. The Financial support for this research is provided by the National Natural Foundation of China (Grants No. 40233032, 40376006) and the open foundation from Polar Research Institution of China. （Grants No. 40233032, 40376006）
