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DOI | 10.1029/2018GL077207 |
Differences in Vertical Structure of the Madden-Julian Oscillation Associated With the Quasi-Biennial Oscillation | |
Hendon, Harry H.1; Abhik, S.2 | |
2018-05-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:9页码:4419-4428 |
文章类型 | Article |
语种 | 英语 |
国家 | Australia |
英文摘要 | The Madden-Julian Oscillation (MJO) during boreal winter is more active and propagates eastward farther into the western Pacific during the easterly phase of quasi-biennial oscillation (QBO). Using atmospheric reanalyses for 1980-2012, we show that the MJO-induced upper tropospheric positive temperature anomaly and overriding cold cap anomaly are stronger and more in-phase with the equatorial MJO-convective anomaly during the easterly phase of the QBO. These temperature anomalies combine to destabilize the upper troposphere more in-phase with MJO convection, thus acting to promote stronger MJO convection during the easterly phase of the QBO especially eastward of the Maritime Continent. This enhanced destabilization is promoted by the negative temperature anomaly at the tropopause resulting from the QBO during its easterly phase. These findings can account for the enhanced strength and farther eastward propagation of the MJO during the easterly phase of the QBO, but await confirmation by theoretical and modeling studies that can isolate these effects. |
英文关键词 | MJO QBO |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000434111700074 |
WOS关键词 | AUSTRAL SUMMER ; MJO ; TEMPERATURE ; SYSTEM ; OCEAN |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/28182 |
专题 | 气候变化 |
作者单位 | 1.Bur Meteorol, Melbourne, Vic, Australia; 2.Monash Univ, Sch Earth Atmosphere & Environm, Clayton, Vic, Australia |
推荐引用方式 GB/T 7714 | Hendon, Harry H.,Abhik, S.. Differences in Vertical Structure of the Madden-Julian Oscillation Associated With the Quasi-Biennial Oscillation[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(9):4419-4428. |
APA | Hendon, Harry H.,&Abhik, S..(2018).Differences in Vertical Structure of the Madden-Julian Oscillation Associated With the Quasi-Biennial Oscillation.GEOPHYSICAL RESEARCH LETTERS,45(9),4419-4428. |
MLA | Hendon, Harry H.,et al."Differences in Vertical Structure of the Madden-Julian Oscillation Associated With the Quasi-Biennial Oscillation".GEOPHYSICAL RESEARCH LETTERS 45.9(2018):4419-4428. |
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