干旱区生态环境知识资源中心(Arid): Identifying a transport mechanism of dust aerosols over South Asia to the Tibetan Plateau: A case study

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DOI	10.1016/j.scitotenv.2020.143714
	Identifying a transport mechanism of dust aerosols over South Asia to the Tibetan Plateau: A case study
	Wang, Tianhe; Tang, Jingyi; Sun, Mengxian; Liu, Xinwei; Huang, Yuxia; Huang, Jianping; Han, Ying; Cheng, Yifan; Huang, Zhongwei; Li, Jiming
通讯作者	Huang, JP (corresponding author), Lanzhou Univ, Coll Atmospher Sci, Key Lab Semiarid Climate Change, Minist Educ, Lanzhou 730000, Peoples R China.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2021
卷号	758
英文摘要	Dust aerosol, one of the important light-absorbing impurities in snowand ice sheets in the Tibet Plateau (TP), can significantly affect the magnitude and timing of snow melting and glacier recession by altering the surface albedo. It is thus of great importance to understand the potential source and transport mechanism of the dust aerosol over the TP. A typical dust storm case, erupted from the Thar Desert (ThD) in South Asia on 1 to 4 May 2018, was selected to understand synoptic causes and a transport mechanism to the TP using the latest Second Modern-Era Retrospective analysis for Research and Applications (MERRA-2) reanalysis data. Comparing with active/passive satellite-based and AERONET-based observations, the MERRA-2 data provide both the spatio-temporal distribution and evolution process of the dust aerosol more accurately. This study also found that the entire Indian-Gangetic Plain (IGP), Southern India, the Bay of Bengal, and even the TP were influenced by the dust event. The synoptic analysis showed that the dust storm was caused jointly by an upper-level jet stream (ULJS), an upper trough and the subtropical high. A typical south-north secondary circulation adjacent its exit zone, mainly triggered by the ULJS, promoted much stronger and higher vertical uplift of the dust aerosols over the ThD. Consequently, those uplifted dust particles were easily transported to the TP across the majestic Himalayas by the southerly airflows in front of the low- pressure trough over Afghanistan and the southern branch trough over the Bengal Bay. These results indicate that dust aerosol and anthropogenic pollutions constrained and driven by the typical atmospheric circulation condition from South Asia are likely to be transported to the TP. Therefore, it is necessary to further pay attention to the influence of dust aerosols from South Asia on the weather and climate in the TP and its downstream areas. (C) 2020 Elsevier B.V. All rights reserved.
英文关键词	Dust aerosol Transport mechanism Tibetan Plateau South Asia
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000605623800112
WOS关键词	REGIONAL CLIMATE MODEL ; SUMMER MONSOON ; BLACK CARBON ; PRODUCTS ; IMPACT ; ABSORPTION ; PARAMETERS ; POLLUTION ; SEASON ; CHINA
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348183
作者单位	[Wang, Tianhe; Tang, Jingyi; Sun, Mengxian; Huang, Jianping; Han, Ying; Cheng, Yifan; Huang, Zhongwei; Li, Jiming] Lanzhou Univ, Coll Atmospher Sci, Key Lab Semiarid Climate Change, Minist Educ, Lanzhou 730000, Peoples R China; [Liu, Xinwei; Huang, Yuxia] Lanzhou Cent Meteorol Observ, Lanzhou 730020, Peoples R China
推荐引用方式 GB/T 7714	Wang, Tianhe,Tang, Jingyi,Sun, Mengxian,et al. Identifying a transport mechanism of dust aerosols over South Asia to the Tibetan Plateau: A case study[J]. 兰州大学,2021,758.
APA	Wang, Tianhe.,Tang, Jingyi.,Sun, Mengxian.,Liu, Xinwei.,Huang, Yuxia.,...&Li, Jiming.(2021).Identifying a transport mechanism of dust aerosols over South Asia to the Tibetan Plateau: A case study.SCIENCE OF THE TOTAL ENVIRONMENT,758.
MLA	Wang, Tianhe,et al."Identifying a transport mechanism of dust aerosols over South Asia to the Tibetan Plateau: A case study".SCIENCE OF THE TOTAL ENVIRONMENT 758(2021).