| DOI: | 10.1038/NGEO2988
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| 论文题名: | Hemispheric climate shifts driven by anthropogenic aerosol-cloud interactions |
| 作者: | Chung E.-S.; Soden B.J.
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| 刊名: | Nature Geoscience
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| ISSN: | 17520894
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| 出版年: | 2017
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| 卷: | 10, 期:8 | | 起始页码: | 566
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| 结束页码: | 571
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| 语种: | 英语
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| Scopus关键词: | absorption
; aerosol
; anthropogenic effect
; climate change
; cloud radiative forcing
; radiative forcing
; rainfall
; scattering
; twentieth century
; volcanic cloud
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| 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. © 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/105737
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| Appears in Collections: | 气候减缓与适应
科学计划与规划
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作者单位: | Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, United States
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| Recommended Citation: | |
Chung E.-S.,Soden B.J.. Hemispheric climate shifts driven by anthropogenic aerosol-cloud interactions[J]. Nature Geoscience,2017-01-01,10(8)
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