Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-018-4121-7 |
Reduced connection between the East Asian Summer Monsoon and Southern Hemisphere Circulation on interannual timescales under intense global warming | |
Yu, Tianlei1; Guo, Pinwen1; Cheng, Jun1; Hu, Aixue2; Lin, Pengfei3,4; Yu, Yongqiang3,4 | |
2018-11-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2018 |
卷号 | 51页码:3943-3955 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Previous studies show a close relationship between the East Asian Summer Monsoon (EASM) and Southern Hemisphere (SH) circulation on interannual timescales. In this study, we investigate whether this close relationship will change under intensive greenhouse-gas effect by analyzing simulations under two different climate background states: preindustrial era and Representative Concentration Pathway (RCP) 8.5 stabilization from the Community Climate System Model Version 4 (CCSM4). Results show a significantly reduced relationship under stabilized RCP8.5 climate state, such a less correlated EASM with the sea level pressure in the southern Indian Ocean and the SH branch of local Hadley Cell. Further analysis suggests that the collapse of the Atlantic Meridional Overturning Circulation (AMOC) due to this warming leads to a less vigorous northward meridional heat transport, a decreased intertropical temperature contrast in boreal summer, which produces a weaker cross-equatorial Hadley Cell in the monsoonal region and a reduced Interhemispheric Mass Exchange (IME). Since the monsoonal IME acts as a bridge connecting EASM and SH circulation, the reduced IME weakens this connection. By performing freshwater hosing experiment using the Flexible Global Ocean-Atmosphere-Land System model, Grid-point Version 2 (FGOALS-g2), we show a weakened relationship between the EASM and SH circulation as in CCSM4 when AMOC collapses. Our results suggest that a substantially weakened AMOC is the main driver leading to the EASM, which is less affected by SH circulation in the future warmer climate. |
英文关键词 | Interannual variability East Asian Summer Monsoon Southern Hemisphere Circulation Global warming Atlantic meridional overturning circulation Freshwater hosing experiment |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000447366100044 |
WOS关键词 | ANTARCTIC OSCILLATION ; CLIMATE VARIABILITY ; TIBETAN PLATEAU ; RIVER VALLEY ; RAINFALL ; IMPACTS ; YANGTZE |
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/36430 |
专题 | 气候变化 |
作者单位 | 1.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Climate Dynam Res Ctr, Key Lab Meteorol Disaster,Minist Educ, Nanjing, Jiangsu, Peoples R China; 2.Natl Ctr Atmospher Res, Climate & Global Dynam Div, POB 3000, Boulder, CO 80307 USA; 3.Univ Chinese Acad Sci, Coll Earth Sci, Beijing, Peoples R China; 4.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Yu, Tianlei,Guo, Pinwen,Cheng, Jun,et al. Reduced connection between the East Asian Summer Monsoon and Southern Hemisphere Circulation on interannual timescales under intense global warming[J]. CLIMATE DYNAMICS,2018,51:3943-3955. |
APA | Yu, Tianlei,Guo, Pinwen,Cheng, Jun,Hu, Aixue,Lin, Pengfei,&Yu, Yongqiang.(2018).Reduced connection between the East Asian Summer Monsoon and Southern Hemisphere Circulation on interannual timescales under intense global warming.CLIMATE DYNAMICS,51,3943-3955. |
MLA | Yu, Tianlei,et al."Reduced connection between the East Asian Summer Monsoon and Southern Hemisphere Circulation on interannual timescales under intense global warming".CLIMATE DYNAMICS 51(2018):3943-3955. |
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