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	Dynamic formation of extreme ozone minimum events over the tibetan plateau during northern winters 1987-2001
	Liu, Chuanxi1,5; Liu, Yi1; Cai, Zhaonan1,5; Gao, Shouting3; Bian, Jianchun1; Liu, Xiong2,4; Chance, Kelly2
刊名	Journal of geophysical research-atmospheres
	2010-09-24
卷号	115页码:14
ISSN号	2169-897X
DOI	10.1029/2009jd013130
通讯作者	Liu, chuanxi()
英文摘要	Wintertime extreme ozone minima in the total column ozone over the tibetan plateau (tp) between 1978 and 2001 are analyzed using observations from the total ozone mapping spectrometer (toms), global ozone monitoring experiment (gome), and reanalysis data from both national centers for environmental prediction and european centre for medium-range weather forecasts. results show that total column ozone reduction in nine persistent (lasting for at least 2 days) and four transient events can be substantially attributed to ozone reduction in the upper troposphere and lower stratosphere region (below 25 km). this reduction is generally caused by uplift of the local tropopause and northward transport of tropical ozone-poor air associated with an anomalous anticyclone in the upper troposphere. these anticyclonic anomalies are closely related to anomalous tropical deep convective heating, which is, however, not necessarily phase locked with the tropical madden-julian oscillation as in our earlier case study. considering stratospheric processes, the selected 13 events can be combined into nine independent events. moreover, five of the nine independent events, especially the persistent events, are coupled with contributions from stratospheric dynamics between 25 and 40 km, i.e., 15%-40% derived from gome observations for events in november 1998, february 1999, and december 2001. on the basis of these events, stratospheric column ozone reduction over the tp region can be attributed to the dynamics (development and/or displacement) of the two main stratospheric systems, namely, the polar vortex and the aleutian high. the effect of a "low-ozone pocket" inside the aleutian high on the total column ozone in east asia requires further study.
WOS关键词	MADDEN-JULIAN OSCILLATION ; TROPOSPHERIC OZONE ; LOWER STRATOSPHERE ; CLIMATOLOGY ; TROPOPAUSE ; HEMISPHERE ; PACIFIC ; HOLES
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000282321800001
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2411228
专题	中国科学院大学
通讯作者	Liu, Chuanxi
作者单位	1.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Middle Atmosphere & Global Environm Obser, Beijing 100029, Peoples R China 2.Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA 3.Chinese Acad Sci, Inst Atmospher Phys, LACS, Beijing 100029, Peoples R China 4.Univ Maryland, Goddard Earth Sci & Technol Ctr, Baltimore, MD 21228 USA 5.Chinese Acad Sci, Grad Univ, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Liu, Chuanxi,Liu, Yi,Cai, Zhaonan,et al. Dynamic formation of extreme ozone minimum events over the tibetan plateau during northern winters 1987-2001[J]. Journal of geophysical research-atmospheres,2010,115:14.
APA	Liu, Chuanxi.,Liu, Yi.,Cai, Zhaonan.,Gao, Shouting.,Bian, Jianchun.,...&Chance, Kelly.(2010).Dynamic formation of extreme ozone minimum events over the tibetan plateau during northern winters 1987-2001.Journal of geophysical research-atmospheres,115,14.
MLA	Liu, Chuanxi,et al."Dynamic formation of extreme ozone minimum events over the tibetan plateau during northern winters 1987-2001".Journal of geophysical research-atmospheres 115(2010):14.

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