Dynamics and predictability of the winter climate over the Far East

研究了东亚冬季风的年际变化。该项目阐明了冬季季风可以受到中纬度高空西风带、北极振荡以及热带和黑潮延伸区海面温度变化的强烈影响。我们还提出了变换欧拉平均方程中残余循环的“新”定义，以更精确地描述三维拉格朗日运动。该项目有助于进一步了解冬季季风的动态和可预测性的提高。

Interannual variability of the East Asian winter monsoon is investigated. This project has clarified that the winter monsoon can be strongly influenced by the variability of the midlatitude westerlies at the upper levels, the arctic oscillation, and sea surface temperature variability over the tropics and Kuroshio extension region. We have also proposed a"new"definition of the residual circulation in the Transformed Eulerian Mean equations to depict three-dimensional Lagrangian motion more precisely. This project contributes further understanding of the dynamics and improvements of predictability of the winter monsoon.