干旱区生态环境知识资源中心(Arid): An assessment of the spatial extent of polar dust using satellite thermal data

Arid

DOI	10.1038/s41598-020-79825-7
	An assessment of the spatial extent of polar dust using satellite thermal data
	Bowen, M.; Vincent, R. F.
通讯作者	Vincent, RF (corresponding author), Royal Mil Coll Canada, Dept Phys & Space Sci, Kingston, ON K7K 7B4, Canada.
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2021
卷号	11 期号:1
英文摘要	The effect of mineral dust aerosols and subsequent deposition in polar regions has historically been underestimated in climate models. Dust aerosols increase melt rates by reducing surface albedo and modifying atmospheric radiative properties. In this study 127,413 satellite images covering the Arctic and Antarctic from 2007 to 2019 were assessed for dust content using thermal infrared wavelengths. The results show a strong linear trend in which the relative spatial extent of dust (RSED) increased annually by 0.31% in the Arctic (8.5% to 12.1%) and 0.19% in the Antarctic (5.2% to 7.5%). Seasonally, the maximum aggregated average RSED occurred in the Arctic during boreal winter (11.2%), while the Antarctic peaked in austral spring (9.5%). Maximum RSED rates occurred in boreal winter/austral summer (Dec-Jan-Feb) for both polar regions. The data suggests that finer dust particles are more efficiently distributed by aeolian processes leading to higher RSED values that are not necessarily reflective of polar dust loading models.
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000621765000054
WOS关键词	MINERAL-DUST ; INFRARED CHANNELS ; AMPLIFICATION ; AEROSOLS ; OCEAN ; SNOW ; ANTARCTICA ; DEPOSITION ; DESERT ; TRENDS
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351731
作者单位	[Bowen, M.; Vincent, R. F.] Royal Mil Coll Canada, Dept Phys & Space Sci, Kingston, ON K7K 7B4, Canada
推荐引用方式 GB/T 7714	Bowen, M.,Vincent, R. F.. An assessment of the spatial extent of polar dust using satellite thermal data[J],2021,11(1).
APA	Bowen, M.,&Vincent, R. F..(2021).An assessment of the spatial extent of polar dust using satellite thermal data.SCIENTIFIC REPORTS,11(1).
MLA	Bowen, M.,et al."An assessment of the spatial extent of polar dust using satellite thermal data".SCIENTIFIC REPORTS 11.1(2021).