DOI: 10.1002/2015GL064547
论文题名: Interannual variability of the Madden-Julian Oscillation and its impact on the North Atlantic Oscillation in the boreal winter
作者: Lin H. ; Brunet G. ; Yu B.
刊名: Geophysical Research Letters
ISSN: 0094-9464
EISSN: 1944-9195
出版年: 2015
卷: 42, 期: 13 起始页码: 5571
结束页码: 5576
语种: 英语
英文关键词: interannual variability
; MJO
; NAO
; teleconnection
; tropical forcing
Scopus关键词: Atmospheric pressure
; Oceanography
; Orthogonal functions
; Interannual variability
; MJO
; NAO
; Teleconnections
; Tropical forcing
; Climatology
; annual variation
; atmospheric forcing
; Madden-Julian oscillation
; North Atlantic Oscillation
; oceanic convection
; seasonal variation
; teleconnection
; winter
; Indian Ocean
; Pacific Ocean
; Pacific Ocean (Central)
英文摘要: Interannual variability of the Madden-Julian Oscillation (MJO) and its influence on the extratropical teleconnection are analyzed. It is found that there is an interannual shift of the MJO activity between the Indian Ocean and the western central Pacific. This is reflected by the year-to-year changes in the occurrence frequency of individual MJO phases. The leading mode of an empirical orthogonal function analysis of occurrence frequency of MJO phases shows an out-of-phase relationship between MJO phase 7 and phases 3-5. During winters when the MJO convection occurs more frequently in the Indian Ocean (phases 3-5), a winter mean positive North Atlantic Oscillation (NAO) tends to occur. These results indicate that the seasonal mean convection activity over the Indian Ocean related to the MJO is a possible driving forcing for the seasonal mean NAO variability in the boreal winter. Key Points There is a strong interannual variability of the MJO activity The interannual variability of the MJO has a significant 3year period The interannual MJO variability is significantly associated with the NAO. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84938199838&doi=10.1002%2f2015GL064547&partnerID=40&md5=1ca7109ef1c9cc744c48450a0f0027f6
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9079
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: Meteorological Research Division, Environment Canada, Dorval, QC, Canada
Recommended Citation:
Lin H.,Brunet G.,Yu B.. Interannual variability of the Madden-Julian Oscillation and its impact on the North Atlantic Oscillation in the boreal winter[J]. Geophysical Research Letters,2015-01-01,42(13).