| DOI: | 10.1002/2015GL067416
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| 论文题名: | Reducing the uncertainty in subtropical cloud feedback |
| 作者: | Myers T.A.; Norris J.R.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9323
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| EISSN: | 1944-9054
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| 出版年: | 2016
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| 卷: | 43, 期:5 | | 起始页码: | 2144
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| 结束页码: | 2148
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| 语种: | 英语
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| 英文关键词: | clouds
; feedbacks
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| Scopus关键词: | Atmospheric temperature
; Budget control
; Climate change
; Climate models
; Clouds
; Earth (planet)
; Global warming
; Oceanography
; Surface waters
; Tropics
; Anthropogenic climate changes
; Atmospheric stability
; Cloud feedbacks
; Earth's energies
; Future climate
; Greenhouse forcing
; Increasing sea-surface temperatures
; Meteorological condition
; Feedback
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| 英文摘要: | Large uncertainty remains on how subtropical clouds will respond to anthropogenic climate change and therefore whether they will act as a positive feedback that amplifies global warming or negative feedback that dampens global warming by altering Earth's energy budget. Here we reduce this uncertainty using an observationally constrained formulation of the response of subtropical clouds to greenhouse forcing. The observed interannual sensitivity of cloud solar reflection to varying meteorological conditions suggests that increasing sea surface temperature and atmospheric stability in the future climate will have largely canceling effects on subtropical cloudiness, overall leading to a weak positive shortwave cloud feedback (0.4 ± 0.9 W m-2 K-1). The uncertainty of this observationally based approximation of the cloud feedback is narrower than the intermodel spread of the feedback produced by climate models. Subtropical cloud changes will therefore complement positive cloud feedbacks identified by previous work, suggesting that future global cloud changes will amplify global warming. ©2016. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84959571378&doi=10.1002%2f2015GL067416&partnerID=40&md5=0c98b3ca6d7465e8da98f9bfc58393c7
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| Citation statistics: |
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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/10286
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Scripps Institution of Oceanography, University of California, San Diego, San Diego, California, United States
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| Recommended Citation: | |
Myers T.A.,Norris J.R.. Reducing the uncertainty in subtropical cloud feedback[J]. Geophysical Research Letters,2016-01-01,43(5).
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