To understand the unique temporal evolution of the 2014‐16 multi‐year El Niño event, which can be characterized as a successive and re‐intensified event preceded by a weak El Niño, this study examines similar events in a 2200‐yr simulation of Community Earth System Model, version 1. By contrasting multi‐year El Niño events with single‐year ones, we find that the succession characteristics of multi‐year El Niño events are primarily caused by a negative North Pacific Oscillation (NPO) in the 1^st‐year winter via subtropical Pacific coupling processes. By contrasting re‐intensified multi‐year El Niño events with lingering ones, we find that the re‐intensification characteristics are caused by a negative Indian Ocean Dipole (IOD) in the 1^st‐year fall via tropical inter‐basin coupling processes. The phase information of the preceding winter NPO and fall IOD together can be used to project the evolution characteristics of El Niño events, particularly the re‐intensified multi‐year and transitional single‐year events.

中文翻译：

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了解重新强化的多年厄尔尼诺事件

为了解2014-16多年厄尔尼诺事件的独特时空演变，该事件可被描述为先于弱厄尔尼诺事件之后的连续和加剧事件，本研究在2200年社区模拟中考察了类似事件地球系统模式，版本1，通过对比单年那些多年厄尔尼诺事件，我们发现，多年厄尔尼诺事件的继承特性由负北太平洋涛动（NPO）在1主要引起^ST冬季通过亚热带太平洋耦合过程。通过对比再次加剧多年厄尔尼诺事件与挥之不去的，我们发现，再次激化特性由负印度洋偶极子（IOD）在1引起的^ST通过热带盆地间耦合过程的年下降。先前的冬季NPO和秋季IOD的相位信息可一起用于预测厄尔尼诺事件的演变特征，特别是重新强化的多年期和过渡期的单年事件。