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DOI | 10.1007/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
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
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 |
推荐引用方式 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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