Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-019-04933-8 |
Asymmetry in the dominant co-variation mode of boreal summer monsoon rainfall regulated by the ENSO evolution | |
Hao, Yuqian1,2,3; Liu, Boqi1,2; Zhu, Congwen1,2; He, Bian4 | |
2019-11-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
卷号 | 53页码:6379-6396 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Interannual variability of boreal summer monsoon (BSM) rainfall exhibits a prominent co-variation mode, which affects the regions with the highest population density in the world. The mode intensity depends on the rainfall variation over the western North Pacific (WNP) and the North America (NAM) monsoon regions. This study suggests that relative importance of the WNP and NAM rainfall anomalies is asymmetric between the strong positive (SP) and strong negative (SN) phases of this mode, which can be attributed to the distinct seasonal evolution of ENSO events. In the SP-phase, the suppressed summer rainfall over the WNP determines the mode following a decaying El Nino event. When the tropical Indian Ocean (TIO) warms and the eastern Equatorial Pacific (EEP) cools, the emanating Kelvin wave- and zonal SST difference-induced low-level WNP anticyclone thus gets enhanced to damp the local rainfall, which further affects the other members of the BSM. However, the SN-phase of this mode, showing closer association with anomalous NAM rainfall, appears with a developing El Nino event. The tropical North Atlantic (TNA) becomes colder from spring to summer, when the EEP warms due to the zonal circulation anomalies. A stronger zonal SST difference between the warm EEP and cold TNA suppresses the NAM rainfall by strengthening the low-level anticyclone in situ. Such asymmetry in different phases of the BSM co-variation mode is validated by the pre-industrial control runs in a state-of-the-art CGCM, indicating the roles of ENSO evolution in regulating the interaction between the BSM members. |
英文关键词 | Co-variation of boreal summer monsoon Interannual variability Seasonal evolution of ENSO Asymmetric pattern |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000493469900069 |
WOS关键词 | WESTERN NORTH PACIFIC ; EL-NINO MODOKI ; EAST ASIAN TELECONNECTION ; INTERANNUAL VARIABILITY ; INDIAN-OCEAN ; GLOBAL PRECIPITATION ; ANOMALOUS ANTICYCLONE ; EQUATORIAL PACIFIC ; PART II ; CLIMATE |
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/187957 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China; 2.Chinese Acad Meteorol Sci, Inst Climate Syst, Beijing 100081, Peoples R China; 3.Tianjin Climate Ctr, Tianjin 300074, Peoples R China; 4.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing 100029, Peoples R China |
推荐引用方式 GB/T 7714 | Hao, Yuqian,Liu, Boqi,Zhu, Congwen,et al. Asymmetry in the dominant co-variation mode of boreal summer monsoon rainfall regulated by the ENSO evolution[J]. CLIMATE DYNAMICS,2019,53:6379-6396. |
APA | Hao, Yuqian,Liu, Boqi,Zhu, Congwen,&He, Bian.(2019).Asymmetry in the dominant co-variation mode of boreal summer monsoon rainfall regulated by the ENSO evolution.CLIMATE DYNAMICS,53,6379-6396. |
MLA | Hao, Yuqian,et al."Asymmetry in the dominant co-variation mode of boreal summer monsoon rainfall regulated by the ENSO evolution".CLIMATE DYNAMICS 53(2019):6379-6396. |
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