Global-regional nested simulation of particle number concentration by combing microphysical processes with an evolving organic aerosol module

Show simple item record

dc.contributor.author Chen, Xueshun
dc.contributor.author Yu, Fangqun
dc.contributor.author Yang, Wenyi
dc.contributor.author Sun, Yele
dc.contributor.author Chen, Huansheng
dc.contributor.author Du, Wei
dc.contributor.author Zhao, Jian
dc.contributor.author Wei, Ying
dc.contributor.author Wei, Lianfang
dc.contributor.author Du, Huiyun
dc.contributor.author Wang, Zhe
dc.contributor.author Wu, Qizhong
dc.contributor.author Li, Jie
dc.contributor.author An, Junling
dc.contributor.author Wang, Zifa
dc.date.accessioned 2021-08-02T07:38:02Z
dc.date.available 2021-08-02T07:38:02Z
dc.date.issued 2021-06-17
dc.identifier.citation 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 2021 , ' Global-regional nested simulation of particle number concentration by combing microphysical processes with an evolving organic aerosol module ' , Atmospheric Chemistry and Physics , vol. 21 , no. 12 , pp. 9343-9366 . https://doi.org/10.5194/acp-21-9343-2021
dc.identifier.other PURE: 167116091
dc.identifier.other PURE UUID: 44a3870c-027b-409c-8a7e-0c684d90ec8f
dc.identifier.other WOS: 000664043100005
dc.identifier.other Scopus: 85108157994
dc.identifier.uri http://hdl.handle.net/10138/332735
dc.description.abstract 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 67 % 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. fi
dc.description.abstract 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 67 % 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. en
dc.format.extent 24
dc.language.iso eng
dc.relation.ispartof Atmospheric Chemistry and Physics
dc.rights cc_by
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject 114 Physical sciences
dc.title Global-regional nested simulation of particle number concentration by combing microphysical processes with an evolving organic aerosol module en
dc.type Article
dc.contributor.organization Air quality research group
dc.contributor.organization Institute for Atmospheric and Earth System Research (INAR)
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.5194/acp-21-9343-2021
dc.relation.issn 1680-7316
dc.rights.accesslevel openAccess
dc.type.version publishedVersion

Files in this item

Total number of downloads: Loading...

Files Size Format View
acp_21_9343_2021.pdf 9.819Mb PDF View/Open

This item appears in the following Collection(s)

Show simple item record