气候变化领域集成服务门户(CCPortal): Impact of sub-grid particle formation in sulfur-rich plumes on particle mass and number concentrations over China

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DOI	10.1016/j.atmosenv.2021.118711
	Impact of sub-grid particle formation in sulfur-rich plumes on particle mass and number concentrations over China
	Wei Y.; Chen X.; Chen H.; Yang W.; Sun Y.; Du H.; Chen D.; Zhao X.; Li J.; Wang Z.
发表日期	2022
ISSN	1352-2310
卷号	268
英文摘要	Particle formation in point source plumes is a typical sub-grid process not explicitly resolved in chemical transport models, and is an important contributor to atmospheric aerosols. The sub-grid particle formation (SGPF) is closely associated with the concentration of hydroxyl radical and condensation sinks in the plume, thus it has diurnal, seasonal and spatial variations. The impacts of SGPF in point source plumes on both aerosol mass and number concentrations were first investigated in China by a newly developed global nested chemical transport model with a SGPF parameterization scheme. Although a mean oxidation fraction of 2.5% sulfur dioxide for parameterizing the SGPF is suggested, the oxidation fraction and the particles formed in point source plumes have clear spatiotemporal variations based on the results of the SGPF scheme. The SGPF can enhance the annual mean concentration of sulfate by more than 1 μg m−3 (10–25%) over high emission areas (HEAs) in central-eastern China (CEC). In terms of particle number concentration, the SGPF contributes much more to nucleation mode particles with increasing number concentration, by 25–50% in HEAs, 10–25% in CEC, and 1–5% in northwestern China (NWC) compared with lower values (within ±5%) for the accumulation mode. This study reveals the significant impacts of SGPF over China and its strong dependence on meteorological and environmental factors. Physically-based SGPF scheme should be incorporated when studying the regional effects of point source plumes on air quality and climate. © 2021 The Author(s)
关键词	China IAP-AACM Particle number Sub-grid particle formation Sulfate
语种	英语
scopus关键词	Atmospheric aerosols; Atmospheric movements; Sulfur dioxide; Chemical transport models; China; Emission area; IAP-AACM; Number concentration; Particle formations; Particle numbers; Point-sources; Sub-grid particle formation; Sub-grids; Air quality; ammonia; black carbon; hydroxyl radical; nitrate; organic carbon; sulfate; sulfur; sulfur dioxide; aerosol; air quality; hydroxyl radical; oxidation; point source; sulfur dioxide; aerosol; air pollution; air quality; Article; boundary layer; China; climate; dry deposition; environmental factor; particle size; plume; polymerization; secondary organic aerosol; summer; wind speed; winter; China
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/248166
作者单位	Institute of Urban Meteorology, China Meteorology Administration, Beijing, 100089, China; The State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; University of Chinese Academy of Sciences, Beijing, 100049, China
推荐引用方式 GB/T 7714	Wei Y.,Chen X.,Chen H.,et al. Impact of sub-grid particle formation in sulfur-rich plumes on particle mass and number concentrations over China[J],2022,268.
APA	Wei Y..,Chen X..,Chen H..,Yang W..,Sun Y..,...&Wang Z..(2022).Impact of sub-grid particle formation in sulfur-rich plumes on particle mass and number concentrations over China.ATMOSPHERIC ENVIRONMENT,268.
MLA	Wei Y.,et al."Impact of sub-grid particle formation in sulfur-rich plumes on particle mass and number concentrations over China".ATMOSPHERIC ENVIRONMENT 268(2022).