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DOI10.1175/JCLI-D-16-0793.1
Decadal Modulation of Precipitation Patterns over Eastern China by Sea Surface Temperature Anomalies
Yang, Qing1; Ma, Zhuguo1,2; Fan, Xingang1,3; Yang, Zong-Liang1,4; Xu, Zhongfeng1; Wu, Peili5
2017-09-01
发表期刊JOURNAL OF CLIMATE
ISSN0894-8755
EISSN1520-0442
出版年2017
卷号30期号:17
文章类型Article
语种英语
国家Peoples R China; USA; England
英文摘要

Annual precipitation anomalies over eastern China are characterized by a north-south dipole pattern, referred to as the "southern flooding and northern drought'' pattern (SF/ND), fluctuating on decadal time scales. Previous research has suggested possible links with oceanic forcing, but the underlying physical mechanisms by which sea surface temperature (SST) variability impacts the dipole pattern remains unclear. Idealized atmospheric general circulation model experiments conducted by the U.S. CLIVAR Drought Working Group are used to investigate the role of historical SST anomalies associated with Pacific El Nino-Southern Oscillation (ENSO)-like and the Atlantic multidecadal oscillation (AMO) patterns in this dipole pattern. The results show that the Pacific SST pattern plays a dominant role in driving the decadal variability of this dipole pattern and the associated atmospheric circulation anomalies, whereas the Atlantic SST pattern contributes to a much lesser degree. The direct atmospheric response to the Pacific SST pattern is a large-scale cyclonic or anticyclonic circulation anomaly in the lower troposphere occupying the entire northern North Pacific. During the warm phase of the Pacific SST pattern, it is cyclonic with northwesterly wind anomalies over northern China pushing the monsoon front to the south and consequently SF/ND. During the cold phase of the Pacific SST pattern, the circulation anomaly reverses with southeasterly winds over northern China allowing the monsoon front and the associated rainband to migrate northward, resulting in southern drought and northern flooding. The Atlantic SST pattern plays a supplementary role, enhancing the dipole pattern when the Pacific SST and Atlantic SST patterns are in opposite phases and weakening it when the phases are the same.


领域气候变化
收录类别SCI-E
WOS记录号WOS:000407276600023
WOS关键词ATLANTIC MULTIDECADAL OSCILLATION ; ASIAN SUMMER MONSOON ; INTERDECADAL VARIABILITY ; CLIMATE MODELS ; NORTH CHINA ; ENSO ; PACIFIC ; RAINFALL ; SST ; PDO
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/19370
专题气候变化
作者单位1.Chinese Acad Sci, Inst Atmospher Phys, CAS Key Lab Reg Climate Environm Res Temperate Ea, Beijing, Peoples R China;
2.Univ Chinese Acad Sci, Beijing, Peoples R China;
3.Western Kentucky Univ, Dept Geog & Geol, Meteorol Program, Bowling Green, KY 42101 USA;
4.Univ Texas Austin, Dept Geol Sci, Jackson Sch Geosci, Austin, TX USA;
5.Met Off Hadley Ctr, Exeter, Devon, England
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GB/T 7714
Yang, Qing,Ma, Zhuguo,Fan, Xingang,et al. Decadal Modulation of Precipitation Patterns over Eastern China by Sea Surface Temperature Anomalies[J]. JOURNAL OF CLIMATE,2017,30(17).
APA Yang, Qing,Ma, Zhuguo,Fan, Xingang,Yang, Zong-Liang,Xu, Zhongfeng,&Wu, Peili.(2017).Decadal Modulation of Precipitation Patterns over Eastern China by Sea Surface Temperature Anomalies.JOURNAL OF CLIMATE,30(17).
MLA Yang, Qing,et al."Decadal Modulation of Precipitation Patterns over Eastern China by Sea Surface Temperature Anomalies".JOURNAL OF CLIMATE 30.17(2017).
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