| DOI: | 10.1007/s00382-016-3277-2
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| Scopus记录号: | 2-s2.0-84982946466
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| 论文题名: | An energy balance perspective on regional CO2-induced temperature changes in CMIP5 models |
| 作者: | Räisänen J.
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| 刊名: | Climate Dynamics
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| ISSN: | 9307575
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| 出版年: | 2017
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| 卷: | 48, 期:2017-09-10 | | 起始页码: | 3441
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| 结束页码: | 3454
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| 语种: | 英语
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| 英文关键词: | Atmospheric heat convergence
; CMIP5
; Energy budget
; Surface energy flux
; Temperature change
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| 英文摘要: | An energy balance decomposition of temperature changes is conducted for idealized transient CO2-only simulations in the fifth phase of the Coupled Model Intercomparison Project. The multimodel global mean warming is dominated by enhanced clear-sky greenhouse effect due to increased CO2 and water vapour, but other components of the energy balance substantially modify the geographical and seasonal patterns of the change. Changes in the net surface energy flux are important over the oceans, being especially crucial for the muted warming over the northern North Atlantic and for the seasonal cycle of warming over the Arctic Ocean. Changes in atmospheric energy flux convergence tend to smooth the gradients of temperature change and reduce its land-sea contrast, but they also amplify the seasonal cycle of warming in northern North America and Eurasia. The three most important terms for intermodel differences in warming are the changes in the clear-sky greenhouse effect, clouds, and the net surface energy flux, making the largest contribution to the standard deviation of annual mean temperature change in 34, 29 and 20 % of the world, respectively. Changes in atmospheric energy flux convergence mostly damp intermodel variations of temperature change especially over the oceans. However, the opposite is true for example in Greenland and Antarctica, where the warming appears to be substantially controlled by heat transport from the surrounding sea areas. © 2016, Springer-Verlag Berlin Heidelberg. |
| 资助项目: | Helsingin Yliopisto
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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/53258
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| Appears in Collections: | 过去全球变化的重建
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作者单位: | Department of Physics, University of Helsinki, P.O. Box 48, Helsinki, Finland
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| Recommended Citation: | |
Räisänen J.. An energy balance perspective on regional CO2-induced temperature changes in CMIP5 models[J]. Climate Dynamics,2017-01-01,48(2017-09-10)
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