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On the Robustness of the Weakening Effect of Anthropogenic Aerosols on the East Asian Summer Monsoon with Multimodel Results
Wang, Hongli1; Xie, Xiaoning1; Liu, Xiaodong1,2
2015
Source PublicationADVANCES IN METEOROLOGY
ISSN1687-9309
Volume2015Issue:397395
SubtypeArticle
Abstract

Using outputs from 10 CMIP5 models with fixed sea surface temperature, we investigate the fast response of the East Asian summer monsoon (EASM) and summer precipitation in East China to anthropogenic aerosols. To address this topic, we employ two commonly used EASM indices that can represent zonal and meridional land-sea thermal contrast, respectively. The results reveal that the notion of a weakened EASM in response to increased anthropogenic aerosols is a robust one, as well as decreased precipitation in East China. The ensemble mean of decreased precipitation in the aerosol run was about 6.6% in comparison to the CTL run and could be enlarged to 8.3% by excluding the experiments with the aerosol direct effect only. Convective precipitation was found to be the primary contributor (>80%) to the reduction of total precipitation. The combination of direct and indirect effects of aerosols can decrease solar radiation reaching the Earth's surface and eventually modulate large-scale EASM circulation and suppress summer precipitation in East China. The uncertainties and discrepancies among the models highlight the complexity of interaction in aerosol-precipitation processes when investigating present and future changes of the EASM.

WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1155/2015/397395
WOS KeywordPrecipitation ; Responses ; Models
Indexed BySCI
Language英语
WOS Research AreaMeteorology & Atmospheric Sciences
WOS SubjectMeteorology & Atmospheric Sciences
WOS IDWOS:000353782300001
PublisherHINDAWI PUBLISHING CORPORATION
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9382
Collection古环境研究室
Corresponding AuthorXie, Xiaoning
Affiliation1.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710075, Peoples R China
2.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Dept Environm Sci & Technol, Xian 710049, Peoples R China
Recommended Citation
GB/T 7714
Wang, Hongli,Xie, Xiaoning,Liu, Xiaodong. On the Robustness of the Weakening Effect of Anthropogenic Aerosols on the East Asian Summer Monsoon with Multimodel Results[J]. ADVANCES IN METEOROLOGY,2015,2015(397395).
APA Wang, Hongli,Xie, Xiaoning,&Liu, Xiaodong.(2015).On the Robustness of the Weakening Effect of Anthropogenic Aerosols on the East Asian Summer Monsoon with Multimodel Results.ADVANCES IN METEOROLOGY,2015(397395).
MLA Wang, Hongli,et al."On the Robustness of the Weakening Effect of Anthropogenic Aerosols on the East Asian Summer Monsoon with Multimodel Results".ADVANCES IN METEOROLOGY 2015.397395(2015).
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