Purpose of Review

This article gives a brief review on how the jet streams over the Eurasian continent influence the East Asian monsoon on intraseasonal to interdecadal time scales and discusses the seasonal predictability and change.

Recent Findings

The wave train along the Eurasian jet streams is found to be crucial for East Asian monsoon variability. Interaction of the upper-level Rossby wave train with the Siberian High causes changes in winter monsoon climate over East Asia. In the case of summer, the Silk Road pattern, embedded in the Asian jet in association with western North Pacific circulation and the Pacific-Japan pattern, alters the strength and phase of the monsoon. Current coupled models showed limited skills in seasonal prediction of the Eurasian jet variations and their influences on the East Asian monsoon variability.

Summary

The Eurasian jets as conduits for East Asian monsoon variability involve multiple feedbacks. Its interaction with low-level circulation mostly determines the degree of strength of variations in the monsoon climate. Global warming projections based on RCP 4.5 and 8.5 in the CMIP5 (the Coupled Model Intercomparison Project phase 5) models indicate that the mean Asian jet strengthens in future during winter, but no change is reported during summer.

中文翻译：

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欧亚急流成为东亚季风变率的管道

审查目的

本文简要回顾了欧亚大陆上的急流在季节内到年代际时间尺度上如何影响东亚季风，并讨论了季节的可预测性和变化。

最近的发现

沿着欧亚喷流的波列对东亚季风的变化至关重要。高层Rossby波浪列车与西伯利亚高压的相互作用导致东亚冬季季风气候发生变化。在夏季，与亚洲西北太平洋环流和太平洋-日本模式相关联地嵌入亚洲喷气机中的丝绸之路模式改变了季风的强度和相位。当前的耦合模型在欧亚急流变化及其对东亚季风变化的影响的季节性预测中显示出有限的技能。

概要

作为东亚季风变化的管道的欧亚喷气流涉及多个反馈。它与低空环流的相互作用主要决定了季风气候变化的强度。基于CMIP5（耦合模型比对项目第5阶段）模型中的RCP 4.5和8.5的全球变暖预测表明，亚洲平均喷气机未来会在冬季增强，但没有报告夏季变化。