| DOI: | 10.1175/JCLI-D-17-0470.1
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| Scopus记录号: | 2-s2.0-85042849303
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| 论文题名: | Atmospheric dynamics feedback: Concept, simulations, and climate implications |
| 作者: | Byrne M.P.; Schneider T.
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| 刊名: | Journal of Climate
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| ISSN: | 8948755
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| 出版年: | 2018
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| 卷: | 31, 期:8 | | 起始页码: | 3249
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| 结束页码: | 3264
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| 语种: | 英语
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| 英文关键词: | Atmospheric circulation
; Climate models
; Climate sensitivity
; Clouds
; Feedback
; Radiative fluxes
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| Scopus关键词: | Atmospheric radiation
; Budget control
; Climate models
; Clouds
; Dynamics
; Feedback
; Atmospheric circulation
; Climate sensitivity
; Coupled climate model
; Large-scale circulation
; Near surface temperature
; Radiative fluxes
; Thermodynamic process
; Top of the atmospheres
; Climate change
; atmospheric circulation
; atmospheric dynamics
; climate change
; climate modeling
; climate prediction
; cloud
; feedback mechanism
; radiative forcing
; sensitivity analysis
; simulation
; thermodynamics
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| 英文摘要: | The regional climate response to radiative forcing is largely controlled by changes in the atmospheric circulation. It has been suggested that global climate sensitivity also depends on the circulation response, an effect called the "atmospheric dynamics feedback." Using a technique to isolate the influence of changes in atmospheric circulation on top-of-the-atmosphere radiation, the authors calculate the atmospheric dynamics feedback in coupled climate models. Large-scale circulation changes contribute substantially to all-sky and cloud feedbacks in the tropics but are relatively less important at higher latitudes. Globally averaged, the atmospheric dynamics feedback is positive and amplifies the near-surface temperature response to climate change by an average of 8% in simulations with coupled models. A constraint related to the atmospheric mass budget results in the dynamics feedback being small on large scales relative to feedbacks associated with thermodynamic processes. Idealized-forcing simulations suggest that circulation changes at high latitudes are potentially more effective at influencing global temperature than circulation changes at low latitudes, and the implications for past and future climate change are discussed. © 2018 American Meteorological Society. |
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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/111575
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Imperial College London, London, United Kingdom; California Institute of Technology, Pasadena, CA, United States
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| Recommended Citation: | |
Byrne M.P.,Schneider T.. Atmospheric dynamics feedback: Concept, simulations, and climate implications[J]. Journal of Climate,2018-01-01,31(8)
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