globalchange  > 科学计划与规划
DOI: 10.1002/2015GL065130
论文题名:
Systematic decomposition of the Madden-Julian Oscillation into balanced and inertio-gravity components
作者: Žagar N.; Franzke C.L.E.
刊名: Geophysical Research Letters
ISSN: 0094-9255
EISSN: 1944-8986
出版年: 2015
卷: 42, 期:16
起始页码: 6829
结束页码: 6835
语种: 英语
英文关键词: 3-D normal-mode function representation ; equatorial Rossby and Kelvin waves ; filtering balanced and inertio-gravity modes ; MJO decomposition ; MJO teleconnections ; quantification of MJO global impacts
Scopus关键词: Balloons ; Climate models ; Global impacts ; Gravity modes ; Kelvin waves ; Normal modes ; Teleconnections ; Climatology ; climate modeling ; decomposition ; Kelvin wave ; Madden-Julian oscillation ; quantitative analysis ; Rossby number ; teleconnection ; three-dimensional modeling ; Pacific Ocean
英文摘要: We present a new method for the three-dimensional multivariate decomposition of the Madden-Julian Oscillation (MJO) into balanced and inertio-gravity (IG) components. The method analyzes global fields with no filtering involved, and it provides a quantitative comparison between the contribution of the Rossby, Kelvin, and other balanced and IG modes to the MJO circulation and its teleconnections. Results based on the ERA Interim reanalysis data and the multivariate MJO index show that the Rossby mode with the lowest meridional index is the largest contributor to the MJO circulation over the Pacific. A smaller role of the Kelvin mode is diagnosed over the Indian Ocean and the maritime continent. The MJO teleconnections in the polar stratosphere appear associated with the leading balanced vertical modes. The presented method shows new ways of evaluating the MJO structure and its global impacts in weather and climate models. © 2015. The Authors.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84941671364&doi=10.1002%2f2015GL065130&partnerID=40&md5=54a3d664314ca46299118e80581bdf3c
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8871
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: Faculty of Mathematics and Physics, University of Ljubljana, Ljubljana, Slovenia

Recommended Citation:
Žagar N.,Franzke C.L.E.. Systematic decomposition of the Madden-Julian Oscillation into balanced and inertio-gravity components[J]. Geophysical Research Letters,2015-01-01,42(16).
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