气候变化领域集成服务门户(CCPortal): Global-regional nested simulation of particle number concentration by combing microphysical processes with an evolving organic aerosol module

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DOI	10.5194/acp-21-9343-2021
	Global-regional nested simulation of particle number concentration by combing microphysical processes with an evolving organic aerosol module
	Chen X.; Yu F.; Yang W.; Sun Y.; Chen H.; Du W.; Zhao J.; Wei Y.; Wei L.; Du H.; Wang Z.; Wu Q.; Li J.; An J.; Wang Z.
发表日期	2021
ISSN	1680-7316
起始页码	9343
结束页码	9366
卷号	21 期号:12
英文摘要	Aerosol microphysical processes are essential for the next generation of global and regional climate and air quality models to determine particle size distribution. The contribution of organic aerosols (OAs) to particle formation, mass, and number concentration is one of the major uncertainties in current models. A new global-regional nested aerosol model was developed to simulate detailed microphysical processes. The model combines an advanced particle microphysics (APM) module and a volatility basis set (VBS) OA module to calculate the kinetic condensation of low-volatility organic compounds and equilibrium partitioning of semi-volatile organic compounds in a 3-D framework using global-regional nested domain. In addition to the condensation of sulfuric acid, the equilibrium partitioning of nitrate and ammonium, and the coagulation process of particles, the microphysical processes of the OAs are realistically represented in our new model. The model uses high-resolution size bins to calculate the size distribution of new particles formed through nucleation and subsequent growth. The multi-scale nesting enables the model to perform high-resolution simulations of the particle formation processes in the urban atmosphere in the background of regional and global environments. By using the nested domains, the model reasonably reproduced the OA components obtained from the analysis of aerosol mass spectrometry measurements through positive matrix factorization and the particle number size distribution in the megacity of Beijing during a period of approximately a month. Anthropogenic organic species accounted for 67g% of the OAs of secondary particles formed by nucleation and subsequent growth, which is considerably larger than that of biogenic OAs. On the global scale, the model well predicted the particle number concentration in various environments. The microphysical module combined with the VBS simulated the universal distribution of organic components among the different aerosol populations. The model results strongly suggest the importance of anthropogenic organic species in aerosol particle formation and growth at polluted urban sites and over the whole globe. © 2021 EDP Sciences. All rights reserved.
语种	英语
scopus关键词	aerosol; computer simulation; concentration (composition); condensation; particulate matter; partitioning; volatile organic compound
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/246797
作者单位	The State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China; Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; Institute of Urban Meteorology, China Meteorology Administration, Beijing, 100089, China; College of Global Change and Earth System Science, Beijing Normal University, Beijing, 100875, China; Atmospheric Science Research Center, State University of New York at Albany, New York, 12203, United States; Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki, Helsinki, 00014, Finland
推荐引用方式 GB/T 7714	Chen X.,Yu F.,Yang W.,et al. Global-regional nested simulation of particle number concentration by combing microphysical processes with an evolving organic aerosol module[J],2021,21(12).
APA	Chen X..,Yu F..,Yang W..,Sun Y..,Chen H..,...&Wang Z..(2021).Global-regional nested simulation of particle number concentration by combing microphysical processes with an evolving organic aerosol module.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(12).
MLA	Chen X.,et al."Global-regional nested simulation of particle number concentration by combing microphysical processes with an evolving organic aerosol module".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.12(2021).