DOI: 10.1002/2015GL064641
论文题名: Projected changes of wintertime synoptic-scale transient eddy activities in the East Asian eddy-driven jet from CMIP5 experiments
作者: Xiao C. ; Zhang Y.
刊名: Geophysical Research Letters
ISSN: 0094-8640
EISSN: 1944-8371
出版年: 2015
卷: 42, 期: 14 起始页码: 6008
结束页码: 6013
语种: 英语
英文关键词: CMIP5
; eddy-driven jet
; midlatitude dynamics
; winter storm
Scopus关键词: Climate change
; Kinetic energy
; Kinetics
; Storms
; CMIP5
; Coupled Model Intercomparison Project
; Eddy kinetic energy
; Highly-correlated
; Intermodel variability
; Midlatitude dynamics
; Static stability
; Winter storms
; Climate models
; baroclinic mode
; climate change
; climate modeling
; coupling
; eddy covariance
; kinetic energy
; storm
; synoptic meteorology
; Far East
英文摘要: The wintertime East Asian eddy-driven jet (EAEJ) responding to climate change in the 21st century is studied using model outputs from the Coupled Model Intercomparison Project phase 5 (CMIP5). Compared to the location displacement in oceanic eddy-driven jets, the magnitude change of synoptic-scale transient eddy activities, measured by eddy kinetic energy (EKE), is a more striking feature in EAEJ. An intensified EKE is projected unanimously by CMIP5 models, suggesting that potential strong winter storm events are likely to happen in East Asian midlatitude in a warming climate. The future change of EKE in EAEJ can be understood in terms of growing baroclinicity wave. The upper level EKE is highly correlated to the low-level static stability, Brunt-Väisälä frequency (BVF). CMIP5 models generally project an intensified upper evel EKE with a reduced low-level BVF (ΔEKE-ΔBVF). Meanwhile, the enhancement of EKE is also constrained by its historical state (ΔEKE-EKE). Intermodel variabilities among CMIP5 models reveal a similar but weaker relationship between ΔBVF (or EKE) and ΔEKE, indicating relatively large model diversities and independencies among CMIP5 models. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84938949648&doi=10.1002%2f2015GL064641&partnerID=40&md5=0485b2cdeb89c2e642271c71c8ce26c8
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8256
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: School of Atmospheric Sciences, Nanjing University, Nanjing, China
Recommended Citation:
Xiao C.,Zhang Y.. Projected changes of wintertime synoptic-scale transient eddy activities in the East Asian eddy-driven jet from CMIP5 experiments[J]. Geophysical Research Letters,2015-01-01,42(14).