干旱区生态环境知识资源中心(Arid): High sensitivity of Aeolus UV surface returns to surface reflectivity

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DOI	10.1038/s41598-023-44525-5
	High sensitivity of Aeolus UV surface returns to surface reflectivity
	Labzovskii, L. D.; van Zadelhoff, G. J.; Tilstra, L. G.; de Kloe, J.; Donovan, D. P.; Stoffelen, A.
通讯作者	Labzovskii, LD
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2023
卷号	13 期号:1
英文摘要	Global ultraviolet (UV) surface reflectivity climatologies are all composed from daylight passive remote sensing observations of reflected UV light, generally integrated over a distribution of attainable reflection directions. We discovered the sensitivity of Aeolus lidar surface returns (LSR) to surface characteristics, providing the first evidence that active remote sensing can be effectively used for retrieving unidirectional UV surface reflectivity on global scales. LSR reproduces surface reflectivity monthly changes in Sahara, which are visible in the Lambertian Equivalent Reflectivity (LER) climatologies from TROPOMI and GOME-2. Very high correlations (r > 0.90) between gridded LSR and the LER climatologies are reported at global and regional scales for 36 different regions. Three clear land cover gradients are discerned from Aeolus LSR signal: (1) water/land, (2) vegetation/arid areas and (3) no snow/snow. The strongest LSR signal was retrieved over snow, while over vegetation, we found moderate negative agreement (r < - 0.60) between LSR and vegetation index proxy. Overall, the success of the first active remote sensing method for retrieving unidirectional UV surface reflectivity using Aeolus is demonstrated. Our approach can be effectively used to detect unresolved land and, especially, snow cover changes in high latitudes because, unlike passive instruments, Aeolus also provided nighttime observations.
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:001087127100072
WOS关键词	LIDAR ; REFLECTANCE ; ALBEDO ; ALADIN ; GOME-2
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/2XILL650/398587
推荐引用方式 GB/T 7714	Labzovskii, L. D.,van Zadelhoff, G. J.,Tilstra, L. G.,et al. High sensitivity of Aeolus UV surface returns to surface reflectivity[J],2023,13(1).
APA	Labzovskii, L. D.,van Zadelhoff, G. J.,Tilstra, L. G.,de Kloe, J.,Donovan, D. P.,&Stoffelen, A..(2023).High sensitivity of Aeolus UV surface returns to surface reflectivity.SCIENTIFIC REPORTS,13(1).
MLA	Labzovskii, L. D.,et al."High sensitivity of Aeolus UV surface returns to surface reflectivity".SCIENTIFIC REPORTS 13.1(2023).