GSTDTAP  > 气候变化
DOI10.1007/s00382-016-3476-x
Can feedback analysis be used to uncover the physical origin of climate sensitivity and efficacy differences?
Rieger, Vanessa S.; Dietmuller, Simone; Ponater, Michael
2017-10-01
发表期刊CLIMATE DYNAMICS
ISSN0930-7575
EISSN1432-0894
出版年2017
卷号49
文章类型Article
语种英语
国家Germany
英文摘要

Different strengths and types of radiative forcings cause variations in the climate sensitivities and efficacies. To relate these changes to their physical origin, this study tests whether a feedback analysis is a suitable approach. For this end, we apply the partial radiative perturbation method. Combining the forward and backward calculation turns out to be indispensable to ensure the additivity of feedbacks and to yield a closed forcing-feedback-balance at top of the atmosphere. For a set of CO2-forced simulations, the climate sensitivity changes with increasing forcing. The albedo, cloud and combined water vapour and lapse rate feedback are found to be responsible for the variations in the climate sensitivity. An O-3-forced simulation (induced by enhanced NOx and CO surface emissions) causes a smaller efficacy than a CO2-forced simulation with a similar magnitude of forcing. We find that the Planck, albedo and most likely the cloud feedback are responsible for this effect. Reducing the radiative forcing impedes the statistical separability of feedbacks. We additionally discuss formal inconsistencies between the common ways of comparing climate sensitivities and feedbacks. Moreover, methodical recommendations for future work are given.


英文关键词Climate sensitivity Efficacy Radiative feedback Radiative forcing Partial radiative perturbation method
领域气候变化
收录类别SCI-E
WOS记录号WOS:000410803300036
WOS关键词MODEL ; CO2 ; OZONE ; SURFACE
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
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/36013
专题气候变化
作者单位Deutsch Zentrum Luft & Raumfahrt DLR, Inst Phys Atmosphare, D-82230 Oberpfaffenhofen, Wessling, Germany
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GB/T 7714
Rieger, Vanessa S.,Dietmuller, Simone,Ponater, Michael. Can feedback analysis be used to uncover the physical origin of climate sensitivity and efficacy differences?[J]. CLIMATE DYNAMICS,2017,49.
APA Rieger, Vanessa S.,Dietmuller, Simone,&Ponater, Michael.(2017).Can feedback analysis be used to uncover the physical origin of climate sensitivity and efficacy differences?.CLIMATE DYNAMICS,49.
MLA Rieger, Vanessa S.,et al."Can feedback analysis be used to uncover the physical origin of climate sensitivity and efficacy differences?".CLIMATE DYNAMICS 49(2017).
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