中文摘要：

在和平的十的摆动(PDO ) 和在扩大冬季的十的时间规模上的 ArcticOscillation (AO ) 之间的关系(11 月—三月) 在这研究被调查。结果显示 AO 在低频率可变性 ofPDO 起一个重要作用。当 AO 在 7 带 PDO 时—8 年，在他们之间的落后关联与关联系数 0.77 变得最强壮。AO 的领先的十的可变性为预言 PDO 的可变性提供一个有价值地先驱的信号。回归和落后关联的结果为联合的 AO-PDO 揭示可能的机制：强壮的 AO 将导致一个提高的阿留申群岛之土人低那被海洋空气相互作用在诺思太平洋连接到 PDO，并且反过来也如此。

英文摘要：

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 coefficient 0.77. The leading decadal variability of AO provides a valuably precursory signal for predicting the variability of PDO. The results of regression and lagging 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.