The link between the East Asian summer monsoon (EASM) and the ensuing East Asian winter monsoon (EAWM) is investigated. The results found that strong (weak) EASM years are often followed by the strong (weak) EAWM years, demonstrating that the in‐phase EASM to EAWM transition dominate the EASM‐EAWM link. The strong EASM to the strong EAWM transition is established by an anomalous anticyclone over the western North Pacific (WNPAC) in summer and an anomalous cyclone (WNPC) in winter. The weak EASM to the weak EAWM transition is connected by the same way but with the WNPC in summer and the WNPAC in winter. Further studies suggest that ENSO plays a crucial role in the in‐phase EASM to EAWM transition, which forces the transition between the WNPC and WNPAC from summer to winter via inducing Rossby wave responses to the ENSO‐induced convection anomalies. Numerical simulation analysis further confirms the dominant role of ENSO in the in‐phase EASM to EAWM transitions. The asymmetric analysis suggests that the in‐phase EASM to EAWM transition is stronger under El Niño than under La Niña.

中文翻译：

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ENSO在东亚夏季风与随后的冬季风之间的联系中的作用

研究了东亚夏季风（EASM）和随后的东亚冬季风（EAWM）之间的联系。结果发现，强（弱）EASM年之后通常是强（弱）EAWM年，这表明同相EASM向EAWM过渡占主导地位。夏季由北太平洋西部（WNPAC）异常的反气旋和冬季由异常气旋（WNPC）确立了从强EASM到强EAWM的过渡。弱EASM到弱EAWM过渡的连接方式相同，但夏季与WNPC，冬季与WNPAC。进一步的研究表明ENSO在EASM向EAWM的同相过渡中起着至关重要的作用，它通过诱导ENSO引起的对流异常的Rossby波响应，迫使WNPC和WNPAC在夏季到冬季之间过渡。数值模拟分析进一步证实了ENSO在同相EASM到EAWM过渡中的主导作用。不对称分析表明，在厄尔尼诺现象下，从EASM到EAWM的同相过渡要比在拉尼娜条件下更强。