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DOI10.1175/JCLI-D-17-0903.1
Circulation Features Associated with the Record-Breaking Rainfall over South China in June 2017
Sun, Jianqi1,2,3; Ming, Jing1,3; Zhang, Mengqi1,3; Yu, Shui1,3
2018-09-01
发表期刊JOURNAL OF CLIMATE
ISSN0894-8755
EISSN1520-0442
出版年2018
卷号31期号:18页码:7209-7224
文章类型Article
语种英语
国家Peoples R China
英文摘要

In June 2017, south China suffered from intense rainfall that broke the record spanning the previous 70 years. In this study, the large-scale circulations associated with the south China June rainfall are analyzed. The results show that the anomalous Pacific-Japan (PJ) pattern is a direct influence on south China June rainfall or East Asian early summer rainfall. In addition, the Australian high was the strongest in June 2017 during the past 70 years, which can increase the equatorward flow to northern Australia and activate convection over the Maritime Continent. Enhanced convection over the Maritime Continent can further enhance local meridional circulation along East Asia, engendering downward motion over the tropical western North Pacific and enhancing the western Pacific subtropical high (WPSH) and upward motion over south China, which increases the rainfall therein. In addition, a strong wave train pattern associated with North Atlantic air-sea interaction was observed in June 2017 at Northern Hemispheric mid- to high latitudes; it originated from the North Atlantic and propagated eastward to East Asia, resulting in an anomalous anticyclone over the Mongolian-Baikal Lake region. This anomalous anticyclone produced strong northerly winds over East Asia that encountered the southerly associated with the WPSH over south China, thereby favoring intense rainfall over the region. Case studies of June 2017 and climate research based on data during 1979-2017 and 1948-2017 indicate that the extremities of the atmospheric circulation over south Europe and Australian high and their coupling with the PJ pattern could be responsible for the record-breaking south China rainfall in June 2017.


英文关键词Atmospheric circulation Rossby waves Teleconnections Rainfall Climate variability
领域气候变化
收录类别SCI-E
WOS记录号WOS:000440402800003
WOS关键词ASIAN SUMMER MONSOON ; SPRING ANTARCTIC OSCILLATION ; TROPICAL WESTERN PACIFIC ; YANGTZE-RIVER VALLEY ; EL-NINO ; PART I ; INTERDECADAL VARIATIONS ; NORTH PACIFIC ; HEAT-FLUX ; PRECIPITATION
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/20664
专题气候变化
作者单位1.Chinese Acad Sci, Inst Atmospher Phys, Nansen Zhu Int Res Ctr, Beijing, Peoples R China;
2.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing, Jiangsu, Peoples R China;
3.Univ Chinese Acad Sci, Beijing, Peoples R China
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GB/T 7714
Sun, Jianqi,Ming, Jing,Zhang, Mengqi,et al. Circulation Features Associated with the Record-Breaking Rainfall over South China in June 2017[J]. JOURNAL OF CLIMATE,2018,31(18):7209-7224.
APA Sun, Jianqi,Ming, Jing,Zhang, Mengqi,&Yu, Shui.(2018).Circulation Features Associated with the Record-Breaking Rainfall over South China in June 2017.JOURNAL OF CLIMATE,31(18),7209-7224.
MLA Sun, Jianqi,et al."Circulation Features Associated with the Record-Breaking Rainfall over South China in June 2017".JOURNAL OF CLIMATE 31.18(2018):7209-7224.
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