| DOI: | 10.1002/grl.50711
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| 论文题名: | Four perspectives on climate feedbacks |
| 作者: | Feldl N.; Roe G.H.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8735
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| EISSN: | 1944-8466
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| 出版年: | 2013
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| 卷: | 40, 期:15 | | 起始页码: | 4007
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| 结束页码: | 4011
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| 语种: | 英语
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| 英文关键词: | climate feedbacks
; climate sensitivity
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| Scopus关键词: | Climate feedbacks
; Climate sensitivity
; Feedback factors
; Global feedback
; Precise modeling
; Regional climate
; Spatial patterns
; Surface temperatures
; Atmospheric temperature
; Computer simulation
; Feedback
; global climate
; global perspective
; humidity
; simulation
; spatial variation
; surface temperature
; thermodynamics
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| 英文摘要: | The spatial pattern of climate feedbacks depends on how the feedbacks are defined. We employ an idealized aquaplanet simulation with radiative kernels diagnosed for the precise model setup and characterize the meridional structure of feedbacks under four different definitions: local feedbacks, global feedbacks, nondimensional feedback factors, and relative humidity feedbacks. First, the spatial pattern of the reference response (i.e., the Planck feedback) is found to vary with definition, largely as a consequence of polar-amplified warming, which affects other high-latitude feedbacks as well. Second, locally defined feedbacks allow for decomposition of the surface temperature response as a function of feedbacks, forcing, and heat transport. Third, different insights into the dynamical and thermodynamical underpinnings of the subtropical moisture response are gained by comparing different versions of humidity feedbacks. Thus, alternative approaches to the conventional, global definition of feedbacks offer several advantages for understanding patterns of warming and, ultimately, regional climate predictability. © 2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880903428&doi=10.1002%2fgrl.50711&partnerID=40&md5=8907dad63432f9da697fe72082c6e6d8
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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/5999
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Department of Atmospheric Sciences, University of Washington, 408 ATG Bldg., Box 351640, Seattle, WA 98195-1640, United States
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| Recommended Citation: | |
Feldl N.,Roe G.H.. Four perspectives on climate feedbacks[J]. Geophysical Research Letters,2013-01-01,40(15).
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