DOI: 10.1002/2016GL067762
论文题名: Modulation of the boreal wintertime Madden-Julian oscillation by the stratospheric quasi-biennial oscillation
作者: Yoo C. ; Son S.-W.
刊名: Geophysical Research Letters
ISSN: 0094-9389
EISSN: 1944-9120
出版年: 2016
卷: 43, 期: 3 起始页码: 1392
结束页码: 1398
语种: 英语
英文关键词: interannual variability
; intraseasonal variability
; MJO
; QBO
Scopus关键词: Climate change
; Oscillators (mechanical)
; Tropics
; Troposphere
; Interannual variability
; Intraseasonal variability
; Madden-Julian oscillation
; Quasi-biennial oscillation
; Tropical convection
; Tropical stratosphere
; Tropical troposphere
; Vertical wind shear
; Climatology
; amplitude
; annual variation
; atmospheric convection
; Boreal
; climate prediction
; Madden-Julian oscillation
; quasi-biennial oscillation
; seasonal variation
; stratosphere
; troposphere
; westerly
; wind shear
; winter
英文摘要: Madden-Julian oscillation (MJO), the dominant mode of intraseasonal variability in the tropical troposphere, has a significant impact on global weather and climate. Here we present that the year-to-year variation of the MJO activity shows significant changes with the quasi-biennial oscillation (QBO) in the tropical stratosphere. Specifically, the boreal winter MJO amplitude, evaluated by various metrics, is typically stronger than normal during the QBO easterly phase at 50 hPa and weaker than normal during the QBO westerly phase at 50 hPa. This relationship, which is possibly mediated by the QBO-related static stability and/or vertical wind shear changes in the tropical upper troposphere and lower stratosphere, is robust whether or not the activeness of the MJO or QBO is taken into account. This result suggests a new potential route from the stratosphere that regulates the organized tropical convection, helping to improve the prediction skill of the boreal winter MJO. © 2016. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84959441574&doi=10.1002%2f2016GL067762&partnerID=40&md5=b70ebd162579935cf7f8bad356cf112a
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10352
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: Department of Atmospheric Science and Engineering, Ewha Womans University, Seoul, South Korea
Recommended Citation:
Yoo C.,Son S.-W.. Modulation of the boreal wintertime Madden-Julian oscillation by the stratospheric quasi-biennial oscillation[J]. Geophysical Research Letters,2016-01-01,43(3).