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DOI	10.1016/j.atmosenv.2021.118659
	Impact of environmental attributes on the uncertainty in MAIAC/MODIS AOD retrievals: A comparative analysis
	Falah, Somaya; Mhawish, Alaa; Sorek-Hamer, Meytar; Lyapustin, Alexei I.; Kloog, Itai; Banerjee, Tirthankar; Kizel, Fadi; Broday, David M.
通讯作者	Broday, DM (corresponding author), Technion, Civil & Environm Engn, Haifa, Israel.
来源期刊	ATMOSPHERIC ENVIRONMENT
ISSN	1352-2310
EISSN	1873-2844
出版年	2021
卷号	262
英文摘要	This work examines the impact of different environmental attributes on the uncertainty in satellite-based Aerosol Optical Depth (AOD) retrieval against the benchmark Aerosol Robotic Network (AERONET) AOD measurements at 21 sites across North Africa, California and Germany, in the years 2007-2017. As a first step, we studied the effects of spatial averaging the Multi-Angle Implementation of Atmospheric Correction (MAIAC) AOD retrievals, and of temporal averaging the AERONET AOD around the satellite (Aqua) overpass, on the agreement between the two products. AERONET AOD averaging over a time-window of +/- 15 min around the satellite overpass and the 1 x 1 km(2) spatial grid of MAIAC were found to provide the best AOD retrieval performance. Next, MAIAC AOD were stratified according to different co-measured environmental attributes (aerosol loading, dominant particle size, vegetation cover, and prevailing particle type) and analyzed against the AERONET AOD. The envelope of the expected retrieval error varied considerably among different environmental attributes categories, with more accurate AOD retrievals obtained over highly vegetated areas (i.e. less surface reflectance) than over arid areas. Moreover, the retrieval accuracy was found to be sensitive to the aerosol loading and particle size, with a large bias between the MAIAC and AERONET AOD during high aerosol loading of coarse particles. In addition, the retrieval accuracy of MAIAC AOD was found to depend on the aerosol type due to the aerosol model assumptions regarding their optical properties.
英文关键词	AOD retrieval Aerosol type AERONET MODIS MAIAC
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000686897500002
WOS关键词	AEROSOL OPTICAL DEPTH ; MID-ATLANTIC COAST ; PM2.5 CONCENTRATIONS ; SATELLITE DATA ; LAND ; ALGORITHMS ; PRODUCTS ; ABSORPTION ; POLLUTION ; PM10
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
来源机构	南京信息工程大学 ; Ben-Gurion University of the Negev
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362656
作者单位	[Falah, Somaya; Kizel, Fadi; Broday, David M.] Technion, Civil & Environm Engn, Haifa, Israel; [Mhawish, Alaa] Nanjing Univ Informat Sci & Technol NUIST, Sch Marine Sci SMS, Lab Environm Remote Sensing LERS, Nanjing, Peoples R China; [Sorek-Hamer, Meytar] Univ Space Res Assoc, Moffett Field, CA USA; [Sorek-Hamer, Meytar] NASA, Ames Res Ctr, Moffett Field, CA USA; [Lyapustin, Alexei I.] NASA, Goddard Space Flight Ctr, Greenbelt, MD USA; [Kloog, Itai] Ben Gurion Univ Negev, Beer Sheva, Israel; [Banerjee, Tirthankar] Banaras Hindu Univ, Inst Environm & Sustainable Dev, Varanasi, Uttar Pradesh, India
推荐引用方式 GB/T 7714	Falah, Somaya,Mhawish, Alaa,Sorek-Hamer, Meytar,et al. Impact of environmental attributes on the uncertainty in MAIAC/MODIS AOD retrievals: A comparative analysis[J]. 南京信息工程大学, Ben-Gurion University of the Negev,2021,262.
APA	Falah, Somaya.,Mhawish, Alaa.,Sorek-Hamer, Meytar.,Lyapustin, Alexei I..,Kloog, Itai.,...&Broday, David M..(2021).Impact of environmental attributes on the uncertainty in MAIAC/MODIS AOD retrievals: A comparative analysis.ATMOSPHERIC ENVIRONMENT,262.
MLA	Falah, Somaya,et al."Impact of environmental attributes on the uncertainty in MAIAC/MODIS AOD retrievals: A comparative analysis".ATMOSPHERIC ENVIRONMENT 262(2021).