DOI: 10.1007/s00382-014-2337-8
Scopus记录号: 2-s2.0-84932193765
论文题名: Weakening of the global atmospheric circulation with global warming
作者: Kjellsson J.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2015
卷: 45, 期: 2017-03-04 起始页码: 975
结束页码: 988
语种: 英语
英文关键词: Climate model
; CMIP5
; Energy transport
; Global warming
; Stream function
; Thermodynamic
英文摘要: This study finds that the global atmospheric circulation weakens, i.e. transports less mass, by about 5 % per degree of global warming as a result of anthropogenic emissions. This is found by calculating a global thermodynamic mass stream function and diagnosing long-term changes in a set of climate-model simulations in the Intergovernmental Panel on Climate Change 5th assessment report. The global atmospheric circulation also expands in thermodynamic coordinates due to increased dry static energy and latent heat in the tropical troposphere. The surface warming and moistening follows a Clausius–Clapeyron relation and tropical moist ascent remains nearly moist adiabatic. Furthermore, the meridional overturning circulation is found to only weaken slightly suggesting that the dominant change is in the zonally asymmetric circulation, i.e. the Walker circulation. The total poleward energy transport increases while the poleward mass transport decreases. The results are found to be robust across the climate models studied. © 2014, The Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54014
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Meteorology, Bolin Centre for Climate Research, Svante Arrhenius vag 16C, Stockholm, Sweden; British Antarctic Survey, High Cross, Madingley Road, Cambridge, United Kingdom
Recommended Citation:
Kjellsson J.. Weakening of the global atmospheric circulation with global warming[J]. Climate Dynamics,2015-01-01,45(2017-03-04)