气候变化领域集成服务门户(CCPortal): Aerosol variations in the upper troposphere and lower stratosphere over the Tibetan Plateau

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DOI	10.1088/1748-9326/ab9b43
	Aerosol variations in the upper troposphere and lower stratosphere over the Tibetan Plateau
	Zhang J.; Wu X.; Bian J.; Xia X.; Bai Z.; Liu Y.; Cai Z.; Huo J.; Lyu D.
发表日期	2020
ISSN	17489318
卷号	15 期号:9
英文摘要	Satellite measurements and model simulations indicate the existence of the Asian tropopause aerosol layer (ATAL)- A n enhanced aerosol layer in the upper troposphere and lower stratosphere (UTLS) associated with the Asian summer monsoon (ASM)- A lthough it has rarely been evidenced by snapshots of balloon-borne in situ measurements. To better understand how the ATAL evolves, a portable optical particle counter (POPS) onboard a stratospheric balloon was released over the Tibetan Plateau (TP) during the ASM period of 2019. The POPS detected the ATAL in the UTLS during the ascending, descending periods, as well as during its quasi-horizontal floating periods. The aerosol number density in the ATAL showed obvious vertical variability. The peak aerosol number density in the ATAL was 180 cm-3 around the tropopause during the ascending and descending period and the maximum aerosol number density was 290 cm-3 around the tropopause during the floating period. And the aerosol concentration observed over the TP in the 2019 summer was approximately five times larger than that in the 2018 summer. Lagrangian simulations reveal that the minority of the observed aerosol particles were directly elevated in a region of uplift south of the Himalayas, and the majority of the particles were transported from the UTLS region situated approximately between the isentropic surfaces of 370 and 460 K. Up to 14% of the observed aerosol particles were directly influenced by the volcanic plumes from the eruption of the volcano Raikoke in June 2019. © 2020 The Author(s). Published by IOP Publishing Ltd.
英文关键词	Asian summer monsoon; Asian tropopause aerosol layer; Tibetan plateau; Volcanic eruption
语种	英语
scopus关键词	Clouds; Horizontal wells; Meteorological balloons; Troposphere; Volcanoes; Aerosol concentration; Asian summer monsoons; In-situ measurement; Isentropic surfaces; Lagrangian simulation; Optical particle counters; Satellite measurements; Stratospheric balloon; Aerosols; aerosol; climate change; climate variation; stratosphere; troposphere; China; Qinghai-Xizang Plateau
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153737
作者单位	Key Laboratory of Middle Atmosphere and Global Environment Observation, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing, 210044, China; University of Chinese Academy of Sciences, Beijing, 100049, China
推荐引用方式 GB/T 7714	Zhang J.,Wu X.,Bian J.,et al. Aerosol variations in the upper troposphere and lower stratosphere over the Tibetan Plateau[J],2020,15(9).
APA	Zhang J..,Wu X..,Bian J..,Xia X..,Bai Z..,...&Lyu D..(2020).Aerosol variations in the upper troposphere and lower stratosphere over the Tibetan Plateau.Environmental Research Letters,15(9).
MLA	Zhang J.,et al."Aerosol variations in the upper troposphere and lower stratosphere over the Tibetan Plateau".Environmental Research Letters 15.9(2020).