The Simulated Source Apportionment of Light Absorbing Aerosols: Effects of Microphysical Properties of Partially-Coated Black Carbon

doi:10.1029/2022JD037291

	The Simulated Source Apportionment of Light Absorbing Aerosols: Effects of Microphysical Properties of Partially-Coated Black Carbon
	Luo, Jie 1,2; Li, Zhengqiang 2,3; Qiu, Jibing 1,4; Zhang, Ying 2,3; Fan, Cheng 2; Li, Li 2; Wu, Hailing 2,3; Zhou, Peng 5; Li, Kaitao 2; Zhang, Qixing 6
	2023-05-27
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN	2169-897X
卷号	128 期号:10 页码:20
摘要	Biomass burning (BB) fractions estimated with the aethalometer model differ from 0 even for pure aerosols from fossil fuel (FF) combustion. We used black carbon (BC) aerosols partially-coated with non-absorbing materials to represent typical FF aerosols, and the BB fractions were determined with the aethalometer model. Thus, the estimated BB fractions are the fractions that FF aerosols are incorrectly attributed to BB aerosols. The BC morphology and mixing state have significant effects on the estimation of BB fractions. For freshly emitted BC, the BB fractions do not deviate significantly from 0, and the BB fraction is generally in the range of -1%-10% based on an FF absorption Angstrom exponent (AAE) of 1 and a BB AAE of 2. The BB fraction deviates substantially from 0 when BC becomes compact and is coated. The absolute values of the deviations sometimes can be close to 100% for heavily coated BC. The BB fraction is generally greater than 0 for fluffy BC while compact BC generally exhibits a negative BB fraction. The BB fractions of partially-coated BC are very sensitive to the size distribution and coating ratio, which is consistent with the results of the core-shell sphere model. We have also performed a series of studies with different configurations for BC morphologies, coating ratios, and mixing states, which show the variations of the estimated BB fractions with atmospheric aging. We also explain the reasons for the uncertainties in the BB fraction estimates and provide suggestions for using different AAE pairs.
关键词	source apportionment light absorbing aerosols microphysical properties black carbon
DOI	10.1029/2022JD037291
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2022YFB3902802] ; National Outstanding Youth Foundation of China[41925019] ; National Natural Science Foundation of China[42275146] ; National Natural Science Foundation of China[42175146] ; National Key Research and Development Plan[2021YFC3000300] ; Fundamental Research Funds for the Central Universities[WK2320000052]
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:001000219400001
出版者	AMER GEOPHYSICAL UNION
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/21192
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Li, Zhengqiang
作者单位	1.Zhejiang Lab, Hangzhou, Peoples R China 2.Chinese Acad Sci, Aerosp Informat Res Inst, State Environm Protect Key Lab Satellite Remote Se, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Chinese Acad Sci, Inst Comp Technol, Beijing, Peoples R China 5.Henan Polytech Univ, Sch Surveying & Land Informat Engn, Jiaozuo, Peoples R China 6.Univ Sci & Technol China, State Key Lab Fire Sci, Hefei, Peoples R China
推荐引用方式 GB/T 7714	Luo, Jie,Li, Zhengqiang,Qiu, Jibing,et al. The Simulated Source Apportionment of Light Absorbing Aerosols: Effects of Microphysical Properties of Partially-Coated Black Carbon[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2023,128(10):20.
APA	Luo, Jie.,Li, Zhengqiang.,Qiu, Jibing.,Zhang, Ying.,Fan, Cheng.,...&Zhang, Qixing.(2023).The Simulated Source Apportionment of Light Absorbing Aerosols: Effects of Microphysical Properties of Partially-Coated Black Carbon.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,128(10),20.
MLA	Luo, Jie,et al."The Simulated Source Apportionment of Light Absorbing Aerosols: Effects of Microphysical Properties of Partially-Coated Black Carbon".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 128.10(2023):20.