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DOI	10.5194/acp-19-7839-2019
	Quantifying the aerosol effect on droplet size distribution at cloud top
	Pardo L.H.; MacHado L.A.T.; Cecchini M.A.; Gácita M.S.
发表日期	2019
ISSN	16807316
起始页码	7839
结束页码	7857
卷号	19 期号:11
英文摘要	This work uses the number concentration-effective diameter phase-space to test cloud sensitivity to variations in the aerosol population characteristics, such as the aerosol size distribution, number concentration and hygroscopicity. It is based on the information from the top of a cloud simulated by a bin-microphysics single-column model, for initial conditions typical of the Amazon, using different assumptions regarding the entrainment and the aerosol size distribution. It is shown that the cloud-top evolution can be very sensitive to aerosol properties, but the relative importance of each parameter is variable. The sensitivity to each aerosol characteristic varies as a function of the parameter tested and is conditioned by the base values of the other parameters, showing a specific dependence for each configuration of the model. When both the entrainment and the bin treatment of the aerosol are allowed, the largest influence on the droplet size distribution sensitivity was obtained for the median radius of the aerosols and not for the total number concentration of aerosols. Our results reinforce that the cloud condensation nuclei activity can not be predicted solely on the basis of the w=Na supersaturation-based regimes. © 2019 Author(s).
语种	英语
scopus关键词	aerosol; cloud microphysics; droplet; hygroscopicity; particle size; quantitative analysis; size distribution; Amazonia
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/144340
作者单位	Centro de Previsão de Tempo e Estudos Climáticos, Instituto Nacional de Pesquisas Espaciais, Cachoeira Paulista, Brazil; Departamento de Ciências Atmosféricas, Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, São Paulo, Brazil; Centro de Ciência Do Sistema Terrestre, Instituto Nacional de Pesquisas Espaciais, São josé dos Campos, Brazil
推荐引用方式 GB/T 7714	Pardo L.H.,MacHado L.A.T.,Cecchini M.A.,et al. Quantifying the aerosol effect on droplet size distribution at cloud top[J],2019,19(11).
APA	Pardo L.H.,MacHado L.A.T.,Cecchini M.A.,&Gácita M.S..(2019).Quantifying the aerosol effect on droplet size distribution at cloud top.Atmospheric Chemistry and Physics,19(11).
MLA	Pardo L.H.,et al."Quantifying the aerosol effect on droplet size distribution at cloud top".Atmospheric Chemistry and Physics 19.11(2019).