气候变化领域集成服务门户(CCPortal): Upper tropospheric ozone transport from the sub-tropics to tropics over the Indian region during Asian summer monsoon

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DOI	10.1007/s00382-018-4418-6
	Upper tropospheric ozone transport from the sub-tropics to tropics over the Indian region during Asian summer monsoon
	Das S.S.; Suneeth K.V.; Ratnam M.V.; Girach I.A.; Das S.K.
发表日期	2019
ISSN	0930-7575
起始页码	4567
结束页码	4581
卷号	52 期号:2020-07-08
英文摘要	In this study, we investigate the role of the Asian summer monsoon (ASM) anticyclone in the distribution of ozone over the southern India and tropical Indian Ocean. We present the horizontal and vertical structure of ozone in the upper troposphere and lower stratosphere (UTLS) region. The analysis shows that the region within the ASM anticyclone has low ozone, and high tropopause altitude, as compared to the region outside the anticyclone during boreal summer. The southern edge of the ASM anticyclone, i.e. the southern India and tropical Indian Ocean show a remarkably high ozone concentration in the UTLS region during summer. Analysis of daily fields shows that ozone concentration in the upper troposphere over the southern India and tropical Indian Ocean increases with the strength of the tropical easterly jet, which is an outcome of ASM circulation. Different mechanisms responsible for the ozone enhancement in the UTLS region over the tropical Indian region have been discussed in this paper. The in situ ozonesonde observations from six Indian stations also support the space-based Aura-MLS observations, concluding that ASM anticyclone effectively transports ozone from the mid-latitude stratosphere to deep tropics. Shear generated turbulence and mixing in the vicinity of easterly jet also likely to play a minor role in the local ozone distribution. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Asian Summer Monsoon; Aura-MLS; COSMIC; Ozone; Tibetan Plateau
语种	英语
scopus关键词	anticyclone; Aura (satellite); COSMIC; monsoon; ozone; ozone depletion; seasonal variation; troposphere; China; Qinghai-Xizang Plateau
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/146383
作者单位	Space Physics Laboratory, Vikram Sarabhai Space Centre, Trivandrum, 695022, India; National Atmospheric Research Laboratory, Department of Space, Gadanki, 517112, India; Indian Institute of Tropical Meteorology, Pune, 411008, India
推荐引用方式 GB/T 7714	Das S.S.,Suneeth K.V.,Ratnam M.V.,et al. Upper tropospheric ozone transport from the sub-tropics to tropics over the Indian region during Asian summer monsoon[J],2019,52(2020-07-08).
APA	Das S.S.,Suneeth K.V.,Ratnam M.V.,Girach I.A.,&Das S.K..(2019).Upper tropospheric ozone transport from the sub-tropics to tropics over the Indian region during Asian summer monsoon.Climate Dynamics,52(2020-07-08).
MLA	Das S.S.,et al."Upper tropospheric ozone transport from the sub-tropics to tropics over the Indian region during Asian summer monsoon".Climate Dynamics 52.2020-07-08(2019).