Inter-model diversity in jet stream changes and its relation to Arctic climate in CMIP5

We examined how coupled general circulation models (CGCMs) simulate changes in the jet stream differently under greenhouse warming, and how this inter-model diversity is related to the simulated Arctic climate changes by analyzing the simulation of the Coupled Model Intercomparison Project Phase 5....

Full description

Saved in:
Bibliographic Details
Published inClimate dynamics Vol. 47; no. 1-2; pp. 235 - 248
Main Authors Yim, Bo Young, Min, Hong Sik, Kug, Jong-Seong
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.07.2016
Springer
Springer Nature B.V
Subjects
Analysis
Atmospheric circulation
Atmospheric models
Climate change
Climatic changes
Climatology
Earth and Environmental Science
Earth Sciences
Geophysics/Geodesy
Jet stream
Oceanography
Arctic
Arctic region
PN, Arctic
Polar cap cooling
Jet stream
Arctic amplification
Online AccessGet full text

Cover

More Information
Summary:We examined how coupled general circulation models (CGCMs) simulate changes in the jet stream differently under greenhouse warming, and how this inter-model diversity is related to the simulated Arctic climate changes by analyzing the simulation of the Coupled Model Intercomparison Project Phase 5. Although the jet stream in the multi-model ensemble mean shifts poleward, a considerable diversity exists among the 34 CGCMs. We found that inter-model differences in zonal wind responses, especially in terms of meridional shift of the midlatitude jet, are highly dependent on Arctic surface warming and lower stratospheric cooling. Specifically, the midlatitude jet tends to shift relatively equatorward (poleward) in the models with stronger (weaker) Arctic surface warming, whereas the jet tends to shift relatively poleward (equatorward) in the models with stronger (weaker) Arctic lower stratospheric cooling.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0930-7575
1432-0894
DOI:10.1007/s00382-015-2833-5