| 北极秋季海冰减少与亚洲大陆冬季温度异常 |
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| 作者姓名： | LIU N LIN Lin WANG Yingjie KONG Bin ZHANG Zhanhai CHEN Hongxia |
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| 作者单位： | Key Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China,Key Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China,Key Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China,Key Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;Geomatics College, Shandong University of Science and Technology, Qingdao 266590, China,Key Laboratory for Polar Science, Polar Research Institute of China, Shanghai 200136, China,Key Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China |
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| 基金项目： | The Basic Research Operating Funds of First Institute of Oceanography, State Oceanic Administration under contract No. 2014T02 and 2014G02; the Chinese Polar Environment Comprehensive Investigation and Assessment Programmes, State Oceanic Administration under contract Nos CHINARE2015-03-01 and CHINARE2015-04-03; the Public science and Technology Research Funds Projects of Ocean under contract No. 201205007. |
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| 摘 要： | 本文使用SVD等诊断分析方法探讨北极秋季海冰密集度与亚洲冬季温度异常之间的关系。结果表明,近30余年来,北极秋季海冰减少伴随着亚洲大陆冬季温度降低,但青藏高原地区、北冰洋和北太平洋沿岸除外。北极秋季海冰密集度减小激发欧亚大陆和北冰洋北部两个区域位势高度的改变,这种异常的变化模态从秋季持续到冬季。位势高度异常的负值中心位于巴伦支海和喀拉海。位势高度异常的正值中心位于蒙古区域。与重力位势高度异常伴随的风场异常为亚洲冬季温度降低提供自北向南的冷气流。随着北极海冰的不断减少,其与亚洲大陆冬季温度降低之间的关系将为气候长期预测提供参考。
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| 关 键 词： | 北极海冰减少 亚洲 冬季温度异常 |
| 收稿时间： | 2015/2/16 0:00:00 |
| 修稿时间： | 9/6/2015 12:00:00 AM |
Arctic autumn sea ice decline and Asian winter temperature anomaly |
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| LIU N,LIN Lin,WANG Yingjie,KONG Bin,ZHANG Zhanhai,CHEN Hongxia.Arctic autumn sea ice decline and Asian winter temperature anomaly[J].Acta Oceanologica Sinica,2016,35(7):36-41. |
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| Authors: | LIU N LIN Lin WANG Yingjie KONG Bin ZHANG Zhanhai and CHEN Hongxia |
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| Institution: | Key Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China,Key Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China,Key Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China,Key Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;Geomatics College, Shandong University of Science and Technology, Qingdao 266590, China,Key Laboratory for Polar Science, Polar Research Institute of China, Shanghai 200136, China and Key Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China |
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| Abstract: | Associations between the autumn Arctic sea ice concentration (SIC) and Asian winter temperature are discussed using the singular value decomposition analysis. Results show that in recent 33 years reduced autumn Arctic sea ice is accompanied by Asian winter temperature decrease except in the Tibetan plateau and the Arctic Ocean and the North Pacific Ocean coast. The autumn SIC reduction excites two geopotential height centers in Eurasia and the north Arctic Ocean, which are persistent from autumn to winter. The negative center is in Barents Sea/Kara Sea. The positive center is located in Mongolia. The anomalous winds are associated with geopotential height centers, providing favorable clod air for the Asian winter temperature decreasing in recent 33 years. This relationship indicates a potential long-term outlook for the Asian winter temperature decrease as the decline of the autumn sea ice in the Arctic Ocean is expected to continue as climate warms. |
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| Keywords: | Arctic sea ice decline Asian winter temperature |
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