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DOI	10.1029/2020GL088886
	Can the Madden-Julian Oscillation Affect the Antarctic Total Column Ozone?
	Yang C.; Smith A.K.; Li T.; Kinnison D.E.; Li J.; Dou X.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:15
英文摘要	The effect of the Madden-Julian Oscillation (MJO) on springtime Antarctic ozone variations is revealed for the first time from multi-satellite reanalysis and model simulations. Twenty to 30 days after MJO Phase 8 (P8), Antarctic total column ozone (TCO) anomalies significantly decrease by up to −15 DU, associated with a wave-1 response at around 60°S. After MJO P8, MJO-related geopotential height anomalies in the southern hemispheric (SH) Indian Ocean emanate from subtropics to polar regions, leading to suppressed upward and poleward propagation of planetary waves (PWs) and weakened Brewer-Dobson circulation in the SH stratosphere. This in turn results in less ozone transport from midlatitudes into the polar region and thus a negative polar TCO response. Dynamical transport plays a dominant role in modulating the Antarctic TCO after MJO P8. The magnitude of transient changes due to chemical processes is relatively weak than that caused by dynamical transport. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Ozone; Brewer-Dobson circulation; Chemical process; Geopotential height anomalies; Madden-Julian oscillation; Model simulation; Ozone variation; Total column ozone; Transient changes; Climatology; geopotential; Madden-Julian oscillation; ozone; planetary wave; polar region; Indian Ocean
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169948
作者单位	CAS Key Laboratory of Geospace Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui, China; Mengcheng National Geophysical Observatory, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui, China; CAS Center for Excellence in Comparative Planetology, University of Science and Technology of China, Hefei, Anhui, China; Atmospheric Chemistry Observation and Modeling, National Center for Atmospheric Research, Boulder, CO, United States; Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, West Lafayette, IN, United States; School of Electronic Information, Wuhan University, Wuhan, Hubei, China
推荐引用方式 GB/T 7714	Yang C.,Smith A.K.,Li T.,et al. Can the Madden-Julian Oscillation Affect the Antarctic Total Column Ozone?[J],2020,47(15).
APA	Yang C.,Smith A.K.,Li T.,Kinnison D.E.,Li J.,&Dou X..(2020).Can the Madden-Julian Oscillation Affect the Antarctic Total Column Ozone?.Geophysical Research Letters,47(15).
MLA	Yang C.,et al."Can the Madden-Julian Oscillation Affect the Antarctic Total Column Ozone?".Geophysical Research Letters 47.15(2020).