作者
Jian Zhu, Dan-Qing Huang, Ying Dai, Xi Chen
发表日期
2016/2
期刊
Theoretical and applied climatology
卷号
123
页码范围
619-627
出版商
Springer Vienna
简介
The recent heterogeneous warming and the associated summer precipitation over eastern China are investigated in this study. In 1990–1999, there exist warming over northwestern Pacific and cooling over eastern equatorial Pacific, which can be quantified by temperature gradient index (TGI). Positive and negative cases are chosen based on TGI. In positive cases, a “southern flood and northern drought” summer rainfall pattern dominates over eastern China. The atmospheric circulations show that associated with the southward receding of western Pacific subtropical high (WPSH), ascending motion accompanied with more water vapor exists over southern China. Furthermore, cold–warm air activity affected by weakened East Asian subtropical jet (EASJ) and strengthened East Asia polar front jet (EAPJ) may also be responsible for this rainfall anomaly pattern. In negative cases, significant positive Meiyu …
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