DOI: 10.1016/j.atmosenv.2015.05.062
Scopus记录号: 2-s2.0-84939773088
论文题名: Modelling aerosol-cloud-meteorology interaction: A case study with a fully coupled air quality model (GEM-MACH)
作者: Gong W ; , Makar P ; A ; , Zhang J ; , Milbrandt J ; , Gravel S ; , Hayden K ; L ; , Macdonald A ; M ; , Leaitch W ; R
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 115 起始页码: 695
结束页码: 715
语种: 英语
英文关键词: Aerosol activation
; Aerosol indirect effect
; Air quality and weather interaction
; Air quality model
; Modelling aerosol-cloud interaction
Scopus关键词: Aerosols
; Air quality
; Chemical activation
; Drops
; Parameterization
; Social networking (online)
; Aerosol indirect effect
; Aerosol-cloud interaction
; Air quality forecasts
; Air quality modeling
; Cloud droplet number concentrations
; Cloud liquid waters
; Cloud observations
; Shortwave radiative flux
; Precipitation (meteorology)
; ozone
; sulfate
; aerosol
; air quality
; air temperature
; atmospheric modeling
; atmospheric plume
; cloud microphysics
; droplet
; precipitation (climatology)
; shortwave radiation
; stratocumulus
; trace gas
; updraft
; volcanic cloud
; aerosol
; air quality
; air temperature
; aircraft
; Article
; cloud
; controlled study
; feedback system
; gas
; meteorology
; precipitation
; priority journal
; simulation
; water content
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: A fully coupled on-line air quality forecast model, GEM-MACH, was used to study aerosol-cloud interactions for a case of an urban-industrial plume impacting stratocumulus. The aerosol effect on the cloud microphysics was achieved by the use of parameterization of cloud droplet nucleation predicted from the on-line size- and composition-resolved aerosols and coupled with a double-moment cloud microphysics parameterization. The model simulations with and without the on-line aerosol effect on cloud microphysics were compared and evaluated against in-situ aerosol and cloud observations from ICARTT 2004. Inclusion of the on-line aerosol interaction with cloud resulted in an increase in modelled cloud amount and cloud liquid water content (LWC) due to increased cloud droplet number concentration (Nd), a decrease in cloud droplet size and a reduction in warm precipitation. The modelled LWC and Nd agreed more closely with the observations when the on-line aerosol was allowed to affect the cloud than when aerosol effects on cloud were not explicitly simulated. The increased cloud amount due to the aerosol effects reduced the modelled downward shortwave radiative flux and air temperature at the surface, contributing to a decrease in ozone over the region of enhanced cloud and an increase in particle sulphate from an increased capacity for aqueous-phase production. Aerosol activation is shown to have a significant influence on the cloud microphysics and cloud processing of trace gases and aerosols. The importance of reasonable parameterization of cloud updraft speed is demonstrated. © 2015. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81636
Appears in Collections: 气候变化事实与影响
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作者单位: Air Quality Research Division, Environment Canada, Toronto, ON, Canada; Meteorological Research Division, Environment Canada, Dorval, QC, Canada; Air Quality Research Division, Environment Canada, Dorval, QC, Canada; Climate Research Division, Environment Canada, Toronto, ON, Canada
Recommended Citation:
Gong W,, Makar P,A,et al. Modelling aerosol-cloud-meteorology interaction: A case study with a fully coupled air quality model (GEM-MACH)[J]. Atmospheric Environment,2015-01-01,115