| 北极涛动与东北冬季温度的联系 |
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| 引用本文： | 李春,方之芳.北极涛动与东北冬季温度的联系[J].高原气象,2005,24(6):927-934. |
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| 作者姓名： | 李春 方之芳 |
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| 作者单位： | 1. 中国海洋大学,海洋-大气相互作用与气候实验室,山东,青岛,266003;江苏省气象灾害和环境变化重点开放实验室(南京信息工程大学),江苏,南京,210044
2. 成都信息工程学院,四川,成都,610041 |
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| 基金项目： | 国家自然科学基金项目（40105006）;四川省科技攻关项目（02GS023-016）;江苏省气象灾害重点实验室（南京信息工程大学）开放课题项目（KLME0508）共同资助. |
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| 摘 要： | 利用1950-1999年NCEP／NCAR再分析资料和东北地区冬季温度资料，借助经验正交函数（EOF）分解、相关分析、合成分析以及关联表方法，研究了北极涛动指数（Arctic Oscillation Indices，AOI）与我国东北地区冬季温度的联系。结果表明，AOI具有明显的上升趋势（趋势系数R=0．35），其振幅在1968／1969年之前较小，而在1968／1969年之后明显增大，具有明显的年代际变化；并且AOI与东北地区冬季温度具有一致的上升趋势（相关系数R=0．59）。研究表明，AO的异常变化通过西伯利亚高压、阿留申低压、东亚地区极地东风以及东亚冬季风异常，进而影响我国东北地区冬季温度异常，它们之间存在着密切的相关关系。
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| 关 键 词： | 北极 涛动 大气环流 东北地区 温度 |
| 文章编号： | 1000-0534（2005）06-0927-08 |
| 收稿时间： | 2004-01-29 |
| 修稿时间： | 2004-01-292004-04-07 |
Linkage of Arctic Oscillation and Winter Temperature in Northeast China |
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| LI Chun,FANG Zhi-fang.Linkage of Arctic Oscillation and Winter Temperature in Northeast China[J].Plateau Meteorology,2005,24(6):927-934. |
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| Authors: | LI Chun FANG Zhi-fang |
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| Institution: | 1. Laboratory for Sea-Air Interaction and Climate, Ocean University of China, Qingdao 266003, China; Jiangsu Key Laboratory of Meteorological Disaster ( Nanjing University of Information Science and Technology |
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| Abstract: | The National Center for Environmental Prediction / National Center for Atmospheric Research(NCEP/NCAR) reanalyseddata from 1950 to 1999 and the temperature data of the Northeast China in winter are adopted to study the relation between the Arctic Oscillation Indices(AOI) and the temperature of the Northeast China in winter with the aid of EOF resolution,coherent analysis,synthetic analysis and correlation-graphmethod.The results show that AOI has distinguished uptrend(the trend coefficient is R=0.35) with amplitudes smaller before the winter of 1968/1969 and much larger after that winter.And the uptrend of AOI and the temperature of the Northeast China in winter are compatible(with correlation coefficient R=0.59).Further investigation find that the anomaly of AO contributes to the temperature anomalies of the Northeast China through the interaction of the Siberian high,Aleutian low,the polar easterlies in east Asia and the winds anomalies in winter in this area. |
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| Keywords: | Arctic Oscillation General circulation of atmosphere Northeast of China Temperature |
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