Inter-model diversity in jet stream changes and its relation to Arctic climate in CMIP5
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Title
- Inter-model diversity in jet stream changes and its relation to Arctic climate in CMIP5
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Author(s)
- Yim, Bo Young; Min, Hong Sik; Kug, Jong-Seong
- KIOST Author(s)
- Min, Hong Sik(민홍식)
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Alternative Author(s)
- 민홍식
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Publication Year
- 2016-07
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Abstract
- We examined how coupled general circulation models (CGCMs) simulate changes in the jet stream differently under greenhouse warming, and how this intermodel 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.
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ISSN
- 0930-7575
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/2172
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DOI
- 10.1007/s00382-015-2833-5
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Bibliographic Citation
- CLIMATE DYNAMICS, v.47, no.1-2, pp.235 - 248, 2016
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Publisher
- SPRINGER
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Subject
- POLAR AMPLIFICATION; TEMPERATURE AMPLIFICATION; SEA-ICE; SIMULATIONS; ATMOSPHERE; TRENDS
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Keywords
- Arctic amplification; Jet stream; Polar cap cooling
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Type
- Article
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Language
- English
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Document Type
- Article
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