气候变化领域集成服务门户(CCPortal): Remote sensing of a high-Arctic; local dust event over Lake Hazen (Ellesmere Island; Nunavut; Canada)

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DOI	10.1016/j.atmosenv.2020.118102
	Remote sensing of a high-Arctic; local dust event over Lake Hazen (Ellesmere Island; Nunavut; Canada)
	Ranjbar K.; O'Neill N.T.; Ivanescu L.; King J.; Hayes P.L.
发表日期	2021
ISSN	1352-2310
卷号	246
英文摘要	A dust plume rising to a maximum altitude of about 1 km above the springtime high-Arctic terrain of Lake Hazen, Nunavut, Canada was detected using a diverse array of passive and active, satellite-based remote sensing techniques. We were able to broadly characterize the 532 nm optical depth and particle size of the upper plume (0.5 ± 0.2 and 15–25 μm radius limits respectively). To our knowledge this is the first satellite-based remotely sensed, overland capture of what is an ubiquitous aeolian process across the Arctic: drainage winds inducing dust plumes that are funneled along basin pathways to spread over the water and land surfaces at the outlets of those pathways. The identification and characterization of the Lake Hazen plume was challenging given that there is little development of passive and active remote sensing techniques over Arctic terrains. Our findings suggest that Arctic-adapted remote sensing techniques that incorporate a priori information on dust optical properties can be exploited to identify and characterize locally generated plumes. © 2020 Elsevier Ltd
英文关键词	Catchments; Dust; Lakes; Optical properties; Particle size; Aeolian process; Drainage winds; Dust optical properties; High arctic; Land surface; Optical depth; Priori information; Remote sensing techniques; Remote sensing; atmospheric plume; dust; eolian process; remote sensing; satellite altimetry; terrain; Canada; Ellesmere Island; Lake Hazen; Nunavut; Queen Elizabeth Islands
语种	英语
来源期刊	Atmospheric Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169097
作者单位	Centre d'Applications et de Recherches en Télédétection, Université de Sherbrooke, Sherbrooke, Québec, Canada; Département de Géographie, Université de Montréal, Montréal, Québec, Canada; Département de Chimie, Université de Montréal, Montréal, Québec, Canada
推荐引用方式 GB/T 7714	Ranjbar K.,O'Neill N.T.,Ivanescu L.,et al. Remote sensing of a high-Arctic; local dust event over Lake Hazen (Ellesmere Island; Nunavut; Canada)[J],2021,246.
APA	Ranjbar K.,O'Neill N.T.,Ivanescu L.,King J.,&Hayes P.L..(2021).Remote sensing of a high-Arctic; local dust event over Lake Hazen (Ellesmere Island; Nunavut; Canada).Atmospheric Environment,246.
MLA	Ranjbar K.,et al."Remote sensing of a high-Arctic; local dust event over Lake Hazen (Ellesmere Island; Nunavut; Canada)".Atmospheric Environment 246(2021).