气候变化领域集成服务门户(CCPortal): Chemical and optical properties of carbonaceous aerosols in Nanjing; eastern China: Regionally transported biomass burning contribution

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DOI	10.5194/acp-19-11213-2019
	Chemical and optical properties of carbonaceous aerosols in Nanjing; eastern China: Regionally transported biomass burning contribution
	Liu X.; Zhang Y.-L.; Peng Y.; Xu L.; Zhu C.; Cao F.; Zhai X.; Mozammel Haque M.; Yang C.; Chang Y.; Huang T.; Xu Z.; Bao M.; Zhang W.; Fan M.; Lee X.
发表日期	2019
ISSN	16807316
起始页码	11213
结束页码	11233
卷号	19 期号:17
英文摘要	Biomass burning can significantly impact the chemical and optical properties of carbonaceous aerosols. Here, the biomass burning impacts were studied during wintertime in a megacity of Nanjing, eastern China. The high abundance of biomass burning tracers such as levoglucosan (lev), mannosan (man), galactosan (gal) and non-sea-salt potassium (nss-K+) was found during the studied period with the concentration ranges of 22.4-1476 ngm-3, 2.1- 56.2 ngm-3, 1.4-32.2 ngm-3 and 0.2-3.8 μgm-3, respectively. The significant contribution of biomass burning to water-soluble organic carbon (WSOC; 22:3±9.9 %) and organic carbon (OC; 20.9±9.3 %) was observed in this study. Backward air mass origin analysis, potential emission sensitivity of elemental carbon (EC) and MODIS fire spot information indicated that the elevations of the carbonaceous aerosols were due to the transported biomassburning aerosols from southeastern China. The characteristic mass ratio maps of lev=man and lev=nss-KC suggested that the biomass fuels were mainly crop residuals. Furthermore, the strong correlation (p<0.01) between biomass burning tracers (such as lev) and light absorption coefficient (babs) for water-soluble brown carbon (BrC) revealed that biomass burning emissions played a significant role in the light-absorption properties of carbonaceous aerosols. The solar energy absorption due to water-soluble brown carbon and EC was estimated by a calculation based on measured lightabsorbing parameters and a simulation based on a radiative transfer model (RRTMG-SW). The solar energy absorption of water-soluble BrC in short wavelengths (300-400 nm) was 0.8±0.4 (0.2-2.3)Wm-2 (figures in parentheses represent the variation range of each parameter) from the calculation and 1.2±0.5 (0.3-1.9)Wm-2 from the RRTMG-SW model. The absorption capacity of water-soluble BrC accounted for about 20 %-30% of the total absorption of EC aerosols. The solar energy absorption of water-soluble BrC due to biomass burning was estimated as 0.2±0.1 (0.0-0.9)Wm-2, considering the biomass burning contribution to carbonaceous aerosols. Potential source contribution function model sim-ulations showed that the solar energy absorption induced by water-soluble BrC and EC aerosols was mostly due to the regionally transported carbonaceous aerosols from source regions such as southeastern China. Our results illustrate the importance of the absorbing water-soluble brown carbon aerosols in trapping additional solar energy in the low-level atmosphere, heating the surface and inhibiting the energy from escaping the atmosphere. © Author(s) 2019.
语种	英语
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144172
作者单位	Yale-NUIST Center on Atmospheric Environment, Joint International Research Laboratory of Climate and Environment Change (ILCEC), Nanjing University of Information Science and Technology, Nanjing, 210044, China; Key Laboratory of Meteorological Disaster Ministry of Education (KLME), Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, 210044, China; School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, 210044, China; School of Forestry and Environmental Studies, Yale University, New Haven, 06511, United States; Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing, 100084, China; Joint Center for Global Change Studies (JCGCS), Beijing, 100084, China; Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, 236-0001, Japan
推荐引用方式 GB/T 7714	Liu X.,Zhang Y.-L.,Peng Y.,et al. Chemical and optical properties of carbonaceous aerosols in Nanjing; eastern China: Regionally transported biomass burning contribution[J],2019,19(17).
APA	Liu X..,Zhang Y.-L..,Peng Y..,Xu L..,Zhu C..,...&Lee X..(2019).Chemical and optical properties of carbonaceous aerosols in Nanjing; eastern China: Regionally transported biomass burning contribution.Atmospheric Chemistry and Physics,19(17).
MLA	Liu X.,et al."Chemical and optical properties of carbonaceous aerosols in Nanjing; eastern China: Regionally transported biomass burning contribution".Atmospheric Chemistry and Physics 19.17(2019).