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DOI	10.1016/j.atmosres.2019.07.001
	Empirical evidence of a positive climate forcing of aerosols at elevated albedo
	Yoon J.; Chang D.Y.; Lelieveld J.; Pozzer A.; Kim J.; Yum S.S.
发表日期	2019
ISSN	0169-8095
起始页码	269
结束页码	279
卷号	229
英文摘要	We use Aerosol Robotic Network (AERONET) observation data to empirically determine how natural and anthropogenic aerosol categories (i.e. mineral dust, biomass burning, and urban-industrial aerosols) affect light extinction, showing that their radiative forcing varies strongly with the surface albedo. Generally, the radiative forcing depends on the aerosol loading, but the efficiency varies with the aerosol type and aerosol-radiation-surface interactions. Desert dust, biomass burning and urban-industrial aerosols can exhibit dramatic shifts in radiative forcing at the top of the atmosphere, from cooling to warming, at surface albedos from below 0.5 to above 0.75. Based on the linear relationship between the radiative forcing efficiency and surface albedo for aeolian aerosols, using Moderate Resolution Imaging Spectroradiometer (MODIS) AOT (Aerosol Optical Thickness) and surface albedo data, we characterized a large Asian dust event during the spring of 2001, and demonstrate its immense spatially varying radiative forcing, ranging from about −84.0 to +69.3 W/m2. For extensive Russian wildfires during the summer of 2010, strong radiative cooling forcing variability of biomass combustion aerosols is found, ranging from about −86.3 to +3.1 W/m2. For a thick urban-industrial aerosol haze over northern India during the winter of 2017, a large range of about −85.0 to −0.3 W/m2 is found. These wide ranges underscore the need to accurately define aerosol-radiation-surface interactions. © 2019 The Authors
英文关键词	AERONET; Aerosol optical thickness; Aerosol radiative effects; Aerosol-radiation-surface interactions; MODIS; Surface albedo
语种	英语
scopus关键词	Atmospheric radiation; Biomass; Combustion; Dust; Efficiency; Light extinction; Optical properties; Radiation effects; Radiative Cooling; Radiometers; Solar radiation; AERONET; Aerosol optical thickness; Aerosol radiation; MODIS; Radiative effects; Surface albedo; Aerosols; AERONET; aerosol; albedo; climate forcing; concentration (composition); empirical analysis; MODIS; optical depth; radiative forcing; radiative transfer
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162320
作者单位	Environmental Satellite Center, Climate and Air Quality Research Department, National Institute of Environmental Research, Incheon, 22689, South Korea; Atmospheric Chemistry Department, Max-Planck Institute for Chemistry, P. O. Box 3060, Mainz, 55128, Germany; Department of Atmosphere Sciences, Yonsei University, Seoul, South Korea; The Cyprus Institute, P. O. Box 27456, Nicosia, 1645, Cyprus
推荐引用方式 GB/T 7714	Yoon J.,Chang D.Y.,Lelieveld J.,et al. Empirical evidence of a positive climate forcing of aerosols at elevated albedo[J],2019,229.
APA	Yoon J.,Chang D.Y.,Lelieveld J.,Pozzer A.,Kim J.,&Yum S.S..(2019).Empirical evidence of a positive climate forcing of aerosols at elevated albedo.Atmospheric Research,229.
MLA	Yoon J.,et al."Empirical evidence of a positive climate forcing of aerosols at elevated albedo".Atmospheric Research 229(2019).