| Relationship between Arctic Oscillation and Pacific Decadal Oscillation on decadal timescale |
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| 作者姓名： | SUN Jianqi WANG Huijun |
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| 作者单位： | [1]Nansen-Zhu International Research Centre （NZC）, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China [2]Graduate School of Chinese Academy of Sciences, Beijing 100039, China |
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| 基金项目： | Acknowledgments Discussions with Dr. Gao Yongqi, Jiang Dabang and Fan Ke are highly appreciated. This study was jointly supported by Key Project of the Chinese Academy of Sciences （Grant No. KZCX3-SW-221） and the National Natural Science Foundation of China （Grant No. 40125014）. |
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| 摘 要： | The Pacific Decadal Oscillation (PDO) is one of the main modes to describe the climate variability in the North Pacific (NP)1-5]. Recent studies showed that PDO is related to winter surface air temperature and precipitation over North America3,6], the c…
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| 关 键 词： | 北极 太平洋 振动 海洋大气 PDO |
| 收稿时间： | 2005-04-04 |
| 修稿时间： | 2005-04-042005-06-21 |
Relationship between Arctic Oscillation and Pacific Decadal Oscillation on decadal timescale |
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| SUN Jianqi WANG Huijun.Relationship between Arctic Oscillation and Pacific Decadal Oscillation on decadal timescale[J].Chinese Science Bulletin,2006,51(1):75-79. |
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| Authors: | Jianqi Sun Huijun Wang |
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| Abstract: | The relationship between the Pacific Decadal Oscillation (PDO) and the Arctic Oscillation (AO) on decadal timescale in the extended winter (November-March) is investigated in this study. The results indicate that AO plays an important role in the low frequency variability of PDO. When AO leads PDO by 7-8 years, the lagging correlation between them becomes the strongest with correlation coeffi- cient 0.77. The leading decadal variability of AO pro- vides a valuably precursory signal for predicting the variability of PDO. The results of regression and lag- ging correlation reveal the possible mechanism for the AO-PDO coupling: A strong AO would lead to an enhanced Aleutian Low that is linked to PDO by ocean-atmosphere interaction in the North Pacific, and vice versa. |
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| Keywords: | Pacific Decadal Oscillation Arctic Oscillation Aleutian Low |
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