干旱区生态环境知识资源中心(Arid): Accelerated Snow Melt in the Russian Caucasus Mountains After the Saharan Dust Outbreak in March 2018

Arid

DOI	10.1029/2020JF005641
	Accelerated Snow Melt in the Russian Caucasus Mountains After the Saharan Dust Outbreak in March 2018
	Dumont, M.; Tuzet, F.; Gascoin, S.; Picard, G.; Kutuzov, S.; Lafaysse, M.; Cluzet, B.; Nheili, R.; Painter, T. H.
通讯作者	Dumont, M
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
ISSN	2169-9003
EISSN	2169-9011
出版年	2020
卷号	125 期号:9
英文摘要	Light absorbing particles, such as mineral dust, are a potent climate forcing agent. Many snow-covered areas are subject to dust outbreak events originating from desert regions able to significantly decrease snow albedo. Here, using a combination of Sentinel-2 imagery, in situ measurements and ensemble detailed snowpack simulations, we study the impact on snow cover duration of a major dust deposition event that occurred in the Caucasus in March 2018. This is, to the best of our knowledge, the first study using ensemble approach and Sentinel-2 imagery to quantify the impact of a dust event on the snow cover evolution. We demonstrate that the calculation of the impact is strongly affected by the snow model uncertainties but that the March 2018 dust event systematically shortened the snow cover duration inWestern Caucasus. The shortening is higher for location with higher accumulation and higher elevation (median values of 23 +/- 7 days) than for location at lower elevation (median values of 15 +/- 3 days). This is because for sites with higher location and higher accumulation, melt occurs later in the season when more incoming solar energy is available. This highlights the huge impact of a single 1- day event on snow cover duration, and consequently, on the hydrology of a large region.
英文关键词	dust snow remote sensing modeling
类型	Article
语种	英语
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000592163700013
WOS关键词	LIGHT-ABSORBING IMPURITIES ; BLACK CARBON ; SPECTRAL ALBEDO ; MT. ELBRUS ; SPECTROSCOPY ; IMPACT ; COVER ; MODEL ; STRATIGRAPHY ; ABSORPTION
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
来源机构	French National Research Institute for Sustainable Development
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327629
作者单位	[Dumont, M.; Tuzet, F.; Lafaysse, M.; Cluzet, B.; Nheili, R.] Univ Toulouse, Univ Grenoble Alpes, CNRS, Ctr Etud Neige,CNRM, Grenoble, France; [Tuzet, F.; Picard, G.] Univ Grenoble Alpes, CNRS, IGE, Grenoble, France; [Gascoin, S.] Univ Toulouse, CNRS, CESBIO, CNES,IRD,INRA,UPS, Toulouse, France; [Kutuzov, S.] Russian Acad Sci, Inst Geog, Lab Glaciol, Moscow, Russia; [Painter, T. H.] CALTECH, Jet Prop Lab, Pasadena, CA USA
推荐引用方式 GB/T 7714	Dumont, M.,Tuzet, F.,Gascoin, S.,et al. Accelerated Snow Melt in the Russian Caucasus Mountains After the Saharan Dust Outbreak in March 2018[J]. French National Research Institute for Sustainable Development,2020,125(9).
APA	Dumont, M..,Tuzet, F..,Gascoin, S..,Picard, G..,Kutuzov, S..,...&Painter, T. H..(2020).Accelerated Snow Melt in the Russian Caucasus Mountains After the Saharan Dust Outbreak in March 2018.JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE,125(9).
MLA	Dumont, M.,et al."Accelerated Snow Melt in the Russian Caucasus Mountains After the Saharan Dust Outbreak in March 2018".JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE 125.9(2020).