| 北大西洋涛动指数变化与北半球冬季阻塞活动 |
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| 引用本文： | 柴晶品,刁一娜.北大西洋涛动指数变化与北半球冬季阻塞活动[J].大气科学,2011,35(2):326-338. |
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| 作者姓名： | 柴晶品 刁一娜 |
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| 作者单位： | 1.天津市滨海新区气象局, 天津,300457 |
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| 基金项目： | 国家自然科学基金资助项目40905030、 10735030 |
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| 摘 要： | 线性回归分析表明北大西洋涛动(NAO)主要与大西洋、欧洲及乌拉尔山地区阻塞的频率和强度的变化存在显著相关关系.在NAO负位相时期阻塞活动在大西洋地区较为频繁且强度较强,正位相时期大西洋地区阻塞活动减少,强度减弱,而欧洲阻塞加强,频率增加,同时乌拉尔山地区的阻塞活动也显著减少.NAO正指数的增强和减弱对应于大西洋和欧洲阻...
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| 关 键 词： | 北大西洋涛动指数 阻塞活动特征 变化趋势 |
The Effect of the Variation of the North Atlantic Oscillation on Winter Blocking Activities in the Northern Hemisphere |
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| Chai Jingpin and Diao Yina.The Effect of the Variation of the North Atlantic Oscillation on Winter Blocking Activities in the Northern Hemisphere[J].Chinese Journal of Atmospheric Sciences,2011,35(2):326-338. |
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| Authors: | Chai Jingpin and Diao Yina |
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| Institution: | 1.Meteorological Administration of Tianjin Binhai New Area, Tianjin,3004572.College of Physical and Environmental Oceanography, Ocean University of China, Qingdao,266100 |
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| Abstract: | The linear regression analysis shows that there is a significant correlation between the North Atlantic Oscillation(NAO) and the variation of blocking frequency and intensity in the Atlantic Ocean,Europe,and the Ural Mountains.During the negative NAO phase,the blocking activities are more frequent and stronger in the Atlantic region.In the positive NAO phase,the blocking activities in the Atlantic region and their frequency diminish,which enhance in Continental Europe,and at the same time the blocking activ... |
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| Keywords: | North Atlantic Oscillation index blocking activities variation and trend |
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