气候变化领域集成服务门户(CCPortal): Dust dominates high-altitude snow darkening and melt over high-mountain Asia

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DOI	10.1038/s41558-020-00909-3
	Dust dominates high-altitude snow darkening and melt over high-mountain Asia
	Sarangi C.; Qian Y.; Rittger K.; Ruby Leung L.; Chand D.; Bormann K.J.; Painter T.H.
发表日期	2020
ISSN	1758-678X
起始页码	1045
结束页码	1051
卷号	10 期号:11
英文摘要	Westerly driven, long-range transportation of dust particles in elevated aerosol layers (EALs) is a persistent phenomenon during spring and summer over the Indian subcontinent. During the snow accumulation season, EALs transport substantial amounts of dust to the snow-covered slopes of high-mountain Asia (HMA). Here we use multiple satellite-based estimates to demonstrate a robust physical association between the EALs and dust-induced snow darkening over HMA. Results from a fully coupled atmosphere–chemistry–snow model support these observations, revealing across HMA a signature of increasing dust-induced snow darkening with surface elevation that peaks near 4,500 m. Moreover, the influence of dust on snow darkening is greater than that of black carbon above 4,000 m. Our findings suggest a discernible role of dust in the observed spatial heterogeneity of snowmelt and snowline trends over HMA and highlight an increasing contribution of dust to snowmelt as the snowline rises with warming. © 2020, Battelle Memorial Institute under exclusive licence to Springer Nature.
英文关键词	aerosol; atmospheric chemistry; black carbon; dark; dust; heterogeneity; long range transport; melting; mountain region; snow; warming; westerly; Asia
语种	英语
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/171642
作者单位	Pacific Northwest National Laboratory, Richland, WA, United States; Indian Institute of Technology Madras, Chennai, India; Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO, United States; Jet Propulsion Laboratory, California Institute of Technology, La Cañada Flintridge, CA, United States; JIFRESSE, University of California, Los Angeles, Los Angeles, CA, United States
推荐引用方式 GB/T 7714	Sarangi C.,Qian Y.,Rittger K.,et al. Dust dominates high-altitude snow darkening and melt over high-mountain Asia[J],2020,10(11).
APA	Sarangi C..,Qian Y..,Rittger K..,Ruby Leung L..,Chand D..,...&Painter T.H..(2020).Dust dominates high-altitude snow darkening and melt over high-mountain Asia.Nature Climate Change,10(11).
MLA	Sarangi C.,et al."Dust dominates high-altitude snow darkening and melt over high-mountain Asia".Nature Climate Change 10.11(2020).