气候变化领域集成服务门户(CCPortal): Impact of the MJO on the interannual variation of the Pacific–Japan mode of the East Asian summer monsoon

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DOI	10.1007/s00382-018-4328-7
	Impact of the MJO on the interannual variation of the Pacific–Japan mode of the East Asian summer monsoon
	Li X.; Gollan G.; Greatbatch R.J.; Lu R.
发表日期	2019
ISSN	0930-7575
起始页码	3489
结束页码	3501
卷号	52 期号:2020-05-06
英文摘要	The spatial pattern of the first mode of interannual variability associated with the East Asian summer monsoon (EASM), obtained from a multivariate Empirical Orthogonal Functions (MV-EOF) analysis, corresponds to the Pacific–Japan (PJ) pattern and is referred to as the PJ-mode. The present study investigates the interannual variation of the PJ-mode from the perspective of the intraseasonal timescale. In particular, the impact of the Madden–Julian oscillation (MJO) on the interannual variation of the PJ-mode is investigated. The results show that the MJO has a significant influence on the interannual variation of the PJ-mode mainly in the lower troposphere (850 hPa) and that the former accounts for approximately 11% of the amplitude of the latter. The major part of the contribution comes from a change in frequency of the different phases of the MJO, especially that of MJO phase 6. This suggests that intraseasonal variation of the convection anomalies over the tropical eastern Indian and western Pacific Oceans plays an important role in the interannual variation of the PJ-mode. In addition, MJO phase 7 also contributes to the interannual variability of the PJ-mode, in this case induced by both the change in frequency and the change in circulation anomalies associated with MJO phase 7. © 2018, The Author(s).
英文关键词	East Asian summer monsoon (EASM); Intraseasonal variability, interannual variability; Madden–Julian oscillation (MJO); Pacific–Japan pattern
语种	英语
scopus关键词	annual variation; atmospheric convection; climate oscillation; empirical orthogonal function analysis; Madden-Julian oscillation; monsoon; seasonal variation; summer; Far East; Indian Ocean; Indian Ocean (East); Japan; Pacific Ocean; Pacific Ocean (West)
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146463
作者单位	State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; University of the Chinese Academy of Sciences, Beijing, China; Ocean Circulation and Climate Dynamics, GEOMAR Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, Kiel, 24105, Germany; Faculty of Mathematics and Natural Sciences, University of Kiel, Kiel, Germany
推荐引用方式 GB/T 7714	Li X.,Gollan G.,Greatbatch R.J.,等. Impact of the MJO on the interannual variation of the Pacific–Japan mode of the East Asian summer monsoon[J],2019,52(2020-05-06).
APA	Li X.,Gollan G.,Greatbatch R.J.,&Lu R..(2019).Impact of the MJO on the interannual variation of the Pacific–Japan mode of the East Asian summer monsoon.Climate Dynamics,52(2020-05-06).
MLA	Li X.,et al."Impact of the MJO on the interannual variation of the Pacific–Japan mode of the East Asian summer monsoon".Climate Dynamics 52.2020-05-06(2019).