DOI: 10.1002/2014GL062175
论文题名: Southward displacement of the upper atmosphere zonal jet in the eastern north Pacific due to global warming
作者: Park J.-H. ; An S.-I.
刊名: Geophysical Research Letters
ISSN: 0094-9583
EISSN: 1944-9314
出版年: 2014
卷: 41, 期: 22 起始页码: 7861
结束页码: 7867
语种: 英语
英文关键词: global warming
; North Pacific jet
; tropical eastern Pacific
Scopus关键词: Atmospheric movements
; Atmospheric temperature
; Climate models
; Global warming
; Oceanography
; Surface waters
; Tropics
; Baroclinic instability
; Eastern north pacific
; Eastern pacific
; Eastern tropical pacific
; Intertropical convergence zone
; Meridional displacements
; North Pacific
; Sea Surface Temperature gradients
; Upper atmosphere
; air-sea interaction
; climate modeling
; displacement
; global warming
; intertropical convergence zone
; jet stream
; meridional circulation
; sea surface temperature
; upper atmosphere
; Pacific Ocean
英文摘要: The jet stream over the eastern North Pacific (ENPJ) as a core of the atmospheric flow is known to strongly fluctuate meridionally, and its meridional displacement directly influences adjacent regional climate. Here, we investigate how this jet will be changed due to global warming. By analyzing the future scenario experiments of Climate Model Intercomparion Project Phase III (CMIP3) and Phase V (5), it was found that both ENPJ and the eastern tropical Pacific intertropical convergence zone (ITCZ) tend to move southward, which are closely related to the tropical eastern Pacific warming trend. Tropical eastern Pacific warming leads to not only the southward migration of ITCZ by southward-shifting the off-equatorial eastern Pacific warm pool, but also the southward shift of ENPJ by increasing baroclinic instability of the atmosphere in subtropical region through intensifying the meridional sea surface temperature (SST) gradient. Not primary but yet secondly the southward shift of ITCZ contributes to the southward shift of ENPJ through a kinematic connection bridged by local Hadley circulation. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84923374661&doi=10.1002%2f2014GL062175&partnerID=40&md5=1f1cb17b7289d64f5cdba390f89b0780
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6847
Appears in Collections: 气候减缓与适应
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作者单位: Department of Atmospheric Sciences, Yonsei University, Seoul, South Korea
Recommended Citation:
Park J.-H.,An S.-I.. Southward displacement of the upper atmosphere zonal jet in the eastern north Pacific due to global warming[J]. Geophysical Research Letters,2014-01-01,41(22).