气候变化领域集成服务门户(CCPortal): Arctic sea-ice loss intensifies aerosol transport to the Tibetan Plateau

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DOI	10.1038/s41558-020-0881-2
	Arctic sea-ice loss intensifies aerosol transport to the Tibetan Plateau
	Li F.; Wan X.; Wang H.; Orsolini Y.J.; Cong Z.; Gao Y.; Kang S.
发表日期	2020
ISSN	1758-678X
起始页码	1037
结束页码	1044
卷号	10 期号:11
英文摘要	The Tibetan Plateau (TP) has recently been polluted by anthropogenic emissions transported from South Asia, but the mechanisms conducive to this aerosol delivery are poorly understood. Here we show that winter loss of Arctic sea ice over the subpolar North Atlantic boosts aerosol transport toward the TP in April, when the aerosol loading is at its climatological maximum and preceding the Indian summer monsoon onset. Low sea ice in February weakens the polar jet, causing decreased Ural snowpack via reduced transport of warm, moist oceanic air into the high-latitude Eurasian interior. This diminished snowpack persists through April, reinforcing the Ural pressure ridge and East Asian trough, segments of a quasi-stationary Rossby wave train extending across Eurasia. These conditions facilitate an enhanced subtropical westerly jet at the southern edge of the TP, invigorating upslope winds that combine with mesoscale updrafts to waft emissions over the Himalayas onto the TP. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
英文关键词	aerosol; anthropogenic source; monsoon; pollutant transport; Rossby wave; sea ice; snowpack; westerly; Arctic Ocean; Asia; Atlantic Ocean; Atlantic Ocean (North); China; Eurasia; Himalayas; Qinghai-Xizang Plateau; South Asia
语种	英语
来源期刊	Nature Climate Change
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/171652
作者单位	Geophysical Institute, University of Bergen and Bjerknes Centre for Climate Research, Bergen, Norway; Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China; Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters/Key Laboratory of Meteorological Disaster, Ministry of Education, Nanjing University of Information Science and Technology, Nanjing, China; Climate Change Research Center, Chinese Academy of Sciences, Beijing, China; Nansen-Zhu International Research Centre, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; NILU−Norwegian Institute for Air Research, Kjeller, Norway; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, Beijing, China; Nansen Environmental and Remote Sensing Center and Bjerknes Centre for Climate Research, Bergen, Norway; State Key Laboratory of Cryosphere Science, Northwest Institute ...
推荐引用方式 GB/T 7714	Li F.,Wan X.,Wang H.,et al. Arctic sea-ice loss intensifies aerosol transport to the Tibetan Plateau[J]. 中国科学院西北生态环境资源研究院,2020,10(11).
APA	Li F..,Wan X..,Wang H..,Orsolini Y.J..,Cong Z..,...&Kang S..(2020).Arctic sea-ice loss intensifies aerosol transport to the Tibetan Plateau.Nature Climate Change,10(11).
MLA	Li F.,et al."Arctic sea-ice loss intensifies aerosol transport to the Tibetan Plateau".Nature Climate Change 10.11(2020).