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DOI | 10.1007/s00382-018-4282-4 |
Interdecadal changes in the asymmetric impacts of ENSO on wintertime rainfall over China and atmospheric circulations over western North Pacific | |
Gao, Ronglu1; Zhang, Renhe2,3; Wen, Min1; Li, Tianran4 | |
2019-06-01 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
卷号 | 52期号:12页码:7525-7536 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Based on data diagnoses, in this study the interdecadal changes in asymmetric impacts of ENSO on wintertime East Asian climate are investigated. It is found that the Pacific Decadal Oscillation (PDO) can significantly modulate the asymmetry in the responses of the East Asian climate to El Nino and La Nina events. In positive PDO phase the response is asymmetric with a strong anomalous anticyclone over western North Pacific (WNP) and significant positive rainfall anomalies over southern China during El Nino winters, but a weak anomalous cyclone over WNP and insignificant negative rainfall anomalies over southern China during La Nina winters. However, such asymmetric responses do not appear in negative PDO phase, with comparable amplitudes of anomalous circulations over WNP and rainfall over southern China in El Nino and La Nina winters. Further analyses reveal that the warm background of the tropical Pacific in positive PDO phase causes significant difference in the amplitudes of convection anomalies over tropical western Pacific, resulting in asymmetric responses of the WNP circulation and rainfall over southern China to El Nino and La Nina events. Nevertheless, the cold background in negative PDO phase reduces the amplitude difference between El Nino and La Nina winters. A comparable convection anomalies appear in tropical western Pacific in El Nino and La Nina winters and the asymmetric responses do not occur. |
英文关键词 | Pacific Decadal Oscillation El Nino-Southern Oscillation East Asian wintertime climate |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000469017000024 |
WOS关键词 | EAST-ASIAN WINTER ; EL-NINO ; PRECIPITATION ; MONSOON ; ANOMALIES ; OSCILLATION ; 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/183524 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Meteorol Sci, Beijing 100081, Peoples R China; 2.Fudan Univ, Dept Atmospher & Ocean Sci, 220 Handan Rd, Shanghai 200433, Peoples R China; 3.Fudan Univ, Inst Atmospher Sci, 220 Handan Rd, Shanghai 200433, Peoples R China; 4.Guangzhou Cent Weather Observ, Guangzhou 510080, Guangdong, Peoples R China |
推荐引用方式 GB/T 7714 | Gao, Ronglu,Zhang, Renhe,Wen, Min,et al. Interdecadal changes in the asymmetric impacts of ENSO on wintertime rainfall over China and atmospheric circulations over western North Pacific[J]. CLIMATE DYNAMICS,2019,52(12):7525-7536. |
APA | Gao, Ronglu,Zhang, Renhe,Wen, Min,&Li, Tianran.(2019).Interdecadal changes in the asymmetric impacts of ENSO on wintertime rainfall over China and atmospheric circulations over western North Pacific.CLIMATE DYNAMICS,52(12),7525-7536. |
MLA | Gao, Ronglu,et al."Interdecadal changes in the asymmetric impacts of ENSO on wintertime rainfall over China and atmospheric circulations over western North Pacific".CLIMATE DYNAMICS 52.12(2019):7525-7536. |
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