期刊
GEOPHYSICAL RESEARCH LETTERS
卷 43, 期 2, 页码 784-792出版社
AMER GEOPHYSICAL UNION
DOI: 10.1002/2015GL067284
关键词
-
资金
- Bundesministerium fur Bildung und Forschung (BMBF) research program MiKlip [FKZ:01LP1158A]
- European project PREFACE [603521]
North Atlantic sea surface temperature anomalies are known to affect tropical Pacific climate variability and El Nino-Southern Oscillation (ENSO) through thermocline adjustment in the equatorial Pacific Ocean. Here coupled climate simulations featuring repeated idealized cycles of the Atlantic Multidecadal Oscillation (AMO) generated by nudging its tropical branch demonstrate that the tropical Pacific response to the AMO also entails a substantial decadally delayed component. The simulations robustly show multidecadal fluctuations in central equatorial Pacific sea surface temperatures lagging the AMO by about three decades and a subdecadal cold-to-warm transition of the tropical Pacific mean state during the AMO's cooling phase. The interplay between out-of-phase responses of seawater temperature and salinity in the western Pacific and associated density anomalies in local thermocline waters emerge as crucial factors of remotely driven multidecadal variations of the equatorial Pacific climate. The delayed AMO influences on tropical Pacific dynamics could help understanding past and future ENSO variability.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据