GSTDTAP  > 地球科学
DOI10.1038/NGEO2988
Hemispheric climate shifts driven by anthropogenic aerosol-cloud interactions
Chung, Eui-Seok; Soden, Brian J.
2017-08-01
发表期刊NATURE GEOSCIENCE
ISSN1752-0894
EISSN1752-0908
出版年2017
卷号10期号:8
文章类型Article
语种英语
国家USA
英文摘要

The contrasting rainfall between the wet tropics and the dry subtropics largely determines the climate of the tropical zones. A southward shift of these rain belts has been observed throughout the latter half of the twentieth century, with profound societal consequences. Although such large-scale shifts in rainfall have been linked to interhemispheric temperature gradients from anthropogenic aerosols, a complete understanding of this mechanism has been hindered by the lack of explicit information on aerosol radiative effects. Here we quantify the relative contributions of radiative forcing from anthropogenic aerosols to the interhemispheric asymmetry in temperature and precipitation change for climate change simulations. We show that in model simulations the vast majority of the precipitation shift does not result from aerosols directly through their absorption and scattering of radiation, but rather indirectly through their modification of cloud radiative properties. Models with larger cloud responses to aerosol forcing are found to better reproduce the observed interhemispheric temperature changes and tropical rain belt shifts over the twentieth century, suggesting that aerosol-cloud interactions will play a key role in determining future interhemispheric shifts in climate.


领域地球科学 ; 气候变化
收录类别SCI-E
WOS记录号WOS:000406641100010
WOS关键词SAHEL RAINFALL ; CMIP5 ; PRECIPITATION ; FEEDBACKS ; RESPONSES ; IMPACT
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
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/34690
专题地球科学
气候变化
作者单位Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, 4600 Rickenbacker Causeway, Miami, FL 33149 USA
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Chung, Eui-Seok,Soden, Brian J.. Hemispheric climate shifts driven by anthropogenic aerosol-cloud interactions[J]. NATURE GEOSCIENCE,2017,10(8).
APA Chung, Eui-Seok,&Soden, Brian J..(2017).Hemispheric climate shifts driven by anthropogenic aerosol-cloud interactions.NATURE GEOSCIENCE,10(8).
MLA Chung, Eui-Seok,et al."Hemispheric climate shifts driven by anthropogenic aerosol-cloud interactions".NATURE GEOSCIENCE 10.8(2017).
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