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DOI | 10.1007/s00382-019-04681-9 |
Detection and attribution of upper-tropospheric warming over the tropical western Pacific | |
Li, Yana1; Yang, Song1,2,3; Deng, Yi4; Hu, Xiaoming1,2; Cai, Ming5; Zhou, Wen6 | |
2019-09-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
卷号 | 53页码:3057-3068 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Both model and satellite observations suggest that the warming in the tropical upper troposphere is more pronounced than in the lower troposphere. This study describes the tropical upper-tropospheric-warming (UTW) in the ECMWF Reanalysis Interim dataset, and reveals radiative and non-radiative processes contributing to the long-term change in UTW. The maximum intensity of the UTW is found between 250 and 400 hPa with a warming rate about 3K/decade over the tropical Atlantic and western Pacific oceans. The warming is more prominent from boreal winter to early spring than the rest of the year. In the tropical western Pacific, where the warmest ocean water resides, the long-term change in the annual mean UTW is mainly contributed by the variations of atmospheric deep convection and the oceanic dynamical process and heat storage (Ocn) with the latter playing a more important role. The UTW caused by the deep convection is mainly through the latent heat release associated with enhanced upward motion and condensation. The UTW related to Ocn is mainly a result of enhanced upward long-wave radiation from the ocean surface due to the large heat storage in the thermocline. The variations in Ocn mainly contribute to the UTW from winter to early spring, while the changes in deep convection play a more essential role from summer to fall. Also shown by the differences in deep convection, a strengthening of the Walker circulation since the early 2000s is also found in the reanalysis, which is most apparent in boreal summer and fall over the tropical Pacific, facilitating the deep convection to dominate. |
英文关键词 | The upper-tropospheric warming The tropical western Pacific Long-term change Attribution analyses |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000483626900034 |
WOS关键词 | INDIVIDUAL FEEDBACK PROCESSES ; PROCESS-BASED DECOMPOSITION ; TEMPERATURE TRENDS ; CLIMATE FEEDBACKS ; PART I ; CIRCULATION ; MONSOON ; CHINA ; FRAMEWORK ; CLOUD |
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/186362 |
专题 | 气候变化 |
作者单位 | 1.Sun Yat Sen Univ, Sch Atmospher Sci, 135 West Xingang Rd, Guangzhou 510275, Guangdong, Peoples R China; 2.Sun Yat Sen Univ, Guangdong Prov Key Lab Climate Change & Nat Disas, Guangzhou, Guangdong, Peoples R China; 3.Sun Yat Sen Univ, Southern Lab Ocean Sci & Engn, Zhuhai, Peoples R China; 4.Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA; 5.Florida State Univ, Dept Earth Ocean & Atmosphere Sci, Tallahassee, FL 32306 USA; 6.City Univ Hong Kong, Sch Energy & Environm, Hong Kong, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Yana,Yang, Song,Deng, Yi,et al. Detection and attribution of upper-tropospheric warming over the tropical western Pacific[J]. CLIMATE DYNAMICS,2019,53:3057-3068. |
APA | Li, Yana,Yang, Song,Deng, Yi,Hu, Xiaoming,Cai, Ming,&Zhou, Wen.(2019).Detection and attribution of upper-tropospheric warming over the tropical western Pacific.CLIMATE DYNAMICS,53,3057-3068. |
MLA | Li, Yana,et al."Detection and attribution of upper-tropospheric warming over the tropical western Pacific".CLIMATE DYNAMICS 53(2019):3057-3068. |
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