东亚季风的准两年振荡及其与ENSO变率的联系

运用小波分析方法和相关分析对东亚季的准两年振荡的存在及其与ＥＮＳＯ变率的关系进行了研究，结果指出：东亚季风具有显著的准两年振荡特征，但周期与振幅具有明显的年代际变化，同时东亚季风的ＱＢＯ过程与ＥｌＮｉｎｏ事件具有密切的联系；

EAST ASIAN MONSOON QBO AND ITS RELATION TO ENSO VARIABILITY

In the context of wavelet technique and coherence analysis the existence of east Asian monsoon QBO is investigated together with its relation to ENSO variability. Results suggest that the monsoon exhibits noticeable QBO but the periods and amplitudes show significant change on an interdecadal basis with the QBO evolution in close relation to an El Nio episode; the western Pacific warm pool serves as a key area connecting the monsoon and ENSO cycle in such a way that the strong QBO winter monsoon first gives rise to a teleconnection wavetrain, followed by anomaly occuring in the warm pool that is then moving eastward, exerting effect on equatorial eastern Pacific SST, causing El Nio happening; the monsoon QBO is responsible for strong seasonal ENSO phase locking and for its warm phase lasting one year or so.