气候变化领域集成服务门户(CCPortal): Impact of environmental attributes on the uncertainty in MAIAC/MODIS AOD retrievals: A comparative analysis

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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 S.; Mhawish A.; Sorek-Hamer M.; Lyapustin A.I.; Kloog I.; Banerjee T.; Kizel F.; Broday D.M.
发表日期	2021
ISSN	1352-2310
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 × 1 km2 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. © 2021 Elsevier Ltd
关键词	AERONET Aerosol type AOD retrieval MAIAC MODIS
语种	英语
scopus关键词	Environmental impact; Optical properties; Particle size; Particle size analysis; Satellites; Uncertainty analysis; Aerosol loading; Aerosol optical depth retrieval; Aerosol optical depths; Aerosol robotic networks; Aerosol types; Environmental attributes; Multi-angle implementation of atmospheric corrections; Optical depth retrievals; Particles sizes; Uncertainty; Aerosols; AERONET; aerosol; comparative study; optical depth; optical property; satellite data; uncertainty analysis; aerosol; article; averaging; California; Germany; information retrieval; North Africa; optical depth; particle size; sensitivity analysis; uncertainty; vegetation; California; Germany; North Africa; United States
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/248263
作者单位	Civil and Environmental Engineering, Technion, Haifa, Israel; Lab of Environmental Remote Sensing (LERS), School of Marine Science (SMS), Nanjing University of Information Science and Technology (NUIST), Nanjing, China; Universities Space Research Association, Moffett Field, CA, United States; NASA Ames Research Center, Moffett Field, CA, United States; NASA Goddard Space Flight Center, Greenbelt, MD, United States; Ben-Gurion University of the Negev, Beer Sheva, Israel; Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, India
推荐引用方式 GB/T 7714	Falah S.,Mhawish A.,Sorek-Hamer M.,et al. Impact of environmental attributes on the uncertainty in MAIAC/MODIS AOD retrievals: A comparative analysis[J],2021,262.
APA	Falah S..,Mhawish A..,Sorek-Hamer M..,Lyapustin A.I..,Kloog I..,...&Broday D.M..(2021).Impact of environmental attributes on the uncertainty in MAIAC/MODIS AOD retrievals: A comparative analysis.ATMOSPHERIC ENVIRONMENT,262.
MLA	Falah S.,et al."Impact of environmental attributes on the uncertainty in MAIAC/MODIS AOD retrievals: A comparative analysis".ATMOSPHERIC ENVIRONMENT 262(2021).