DOI: 10.1002/2014GL060043
论文题名: The response of the Southern Hemispheric eddy-driven jet to future changes in shortwave radiation in CMIP5
作者: Ceppi P. ; Zelinka M.D. ; Hartmann D.L.
刊名: Geophysical Research Letters
ISSN: 0094-10103
EISSN: 1944-9834
出版年: 2014
卷: 41, 期: 9 起始页码: 3244
结束页码: 3250
语种: 英语
英文关键词: cloud feedbacks
; global warming
; jet streams
; radiative feedbacks
; shortwave radiation
Scopus关键词: Computer simulation
; Global warming
; Meteorology
; Sea ice
; Circulation changes
; Cloud feedbacks
; Coupled Model Intercomparison Project
; Coupled simulation
; Jet streams
; Meridional gradients
; Sea surface temperature (SST)
; Short-wave radiation
; Climate models
; baroclinic mode
; climate modeling
; eddy
; global warming
; jet stream
; radiative transfer
; sea ice
; sea surface temperature
; shortwave radiation
; Southern Hemisphere
英文摘要: A strong relationship is found between changes in the meridional gradient of absorbed shortwave radiation (ASR) and Southern Hemispheric jet shifts in 21st century climate simulations of CMIP5 (Coupled Model Intercomparison Project phase 5) coupled models. The relationship is such that models with increases in the meridional ASR gradient around the southern midlatitudes, and therefore increases in midlatitude baroclinicity, tend to produce a larger poleward jet shift. The ASR changes are shown to be dominated by changes in cloud properties, with sea ice declines playing a secondary role. We demonstrate that the ASR changes are the cause, and not the result, of the intermodel differences in jet response by comparing coupled simulations with experiments in which sea surface temperature increases are prescribed. Our results highlight the importance of reducing the uncertainty in cloud feedbacks in order to constrain future circulation changes. Key Points Large intermodel spread in SW radiation response to global warming in CMIP5 Spread in SW changes causes spread in SH jet response to global warming Different SW changes cause different changes in midlatitude baroclinicity © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84901933770&doi=10.1002%2f2014GL060043&partnerID=40&md5=2b70595a74f0b00f7fa685e4bbae045a
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7367
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, Seattle, WA, United States
Recommended Citation:
Ceppi P.,Zelinka M.D.,Hartmann D.L.. The response of the Southern Hemispheric eddy-driven jet to future changes in shortwave radiation in CMIP5[J]. Geophysical Research Letters,2014-01-01,41(9).