中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Dynamics of Asian Summer Monsoon Response to Anthropogenic Aerosol Forcing

文献类型:期刊论文

作者Liu, Qinyu2,5,6; Wang, Hai6; Xie, Shang-Ping; Kosaka, Yu7; Du, Yan3
刊名JOURNAL OF CLIMATE
出版日期2019
卷号32期号:3页码:843
ISSN号0894-8755
关键词Atmosphere-ocean interaction Atmospheric circulation Monsoons Sea surface temperature Aerosols Anthropogenic effects
DOI10.1175/JCLI-D-18-0386.1
英文摘要Anthropogenic aerosols partially mask the greenhouse warming and cause the reduction in Asian summer monsoon precipitation and circulation. By decomposing the atmospheric change into the direct atmospheric response to radiative forcing and sea surface temperature (SST)-mediated change, the physical mechanisms for anthropogenic-aerosol-induced changes in the East Asian summer monsoon (EASM) and South Asian summer monsoon (SASM) are diagnosed. Using coupled and atmospheric general circulation models, this study shows that the aerosol-induced troposphere cooling over Asian land regions generates anomalous sinking motion between 20 degrees and 40 degrees N and weakens the EASM north of 20 degrees N without SST change. The decreased EASM precipitation and the attendant wind changes are largely due to this direct atmospheric response to radiative forcing, although the aerosol-induced North Pacific SST cooling also contributes. The SST-mediated change dominates the aerosol-induced SASM response, with contributions from both the north-south interhemispheric SST gradient and the local SST cooling pattern over the tropical Indian Ocean. Specifically, with large meridional gradient, the zonal-mean SST cooling pattern is most important for the Asian summer monsoon response to anthropogenic aerosol forcing, resulting in a reorganization of the regional meridional atmospheric overturning circulation. While uncertainty in aerosol radiative forcing has been emphasized in the literature, our results show that the intermodel spread is as large in the SST effect on summer monsoon rainfall, calling for more research into the ocean-atmosphere coupling.
源URL[http://ir.scsio.ac.cn/handle/344004/17774]  
专题南海海洋研究所_热带海洋环境国家重点实验室(LTO)
作者单位1.Ocean Univ China, Coll Ocean & Atmospher Sci, Qingdao, Peoples R China
2.Univ Tokyo, Res Ctr Adv Sci & Technol, Meguro Ku, Tokyo, Japan
3.Ocean Univ China, Phys Oceanog Lab CIMST, Qingdao, Peoples R China
4.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China
5.Ocean Univ China, Phys Oceanog Lab, Collaborat Innovat Ctr Marine Sci & Technol, Qingdao, Peoples R China
6.Qingdao Natl Lab Marine Sci & Technol, Qingdao, Peoples R China
7.Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA
推荐引用方式
GB/T 7714
Liu, Qinyu,Wang, Hai,Xie, Shang-Ping,et al. Dynamics of Asian Summer Monsoon Response to Anthropogenic Aerosol Forcing[J]. JOURNAL OF CLIMATE,2019,32(3):843, 858.
APA Liu, Qinyu,Wang, Hai,Xie, Shang-Ping,Kosaka, Yu,&Du, Yan.(2019).Dynamics of Asian Summer Monsoon Response to Anthropogenic Aerosol Forcing.JOURNAL OF CLIMATE,32(3),843.
MLA Liu, Qinyu,et al."Dynamics of Asian Summer Monsoon Response to Anthropogenic Aerosol Forcing".JOURNAL OF CLIMATE 32.3(2019):843.

入库方式: OAI收割

来源:南海海洋研究所

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