气候变化领域集成服务门户(CCPortal): The evolution of cloud and aerosol microphysics at the summit of Mt. Tai, China

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DOI	10.5194/acp-20-13735-2020
	The evolution of cloud and aerosol microphysics at the summit of Mt. Tai, China
	Li J.; Zhu C.; Chen H.; Zhao D.; Xue L.; Wang X.; Li H.; Liu P.; Liu J.; Zhang C.; Mu Y.; Zhang W.; Zhang L.; Herrmann H.; Li K.; Liu M.; Chen J.
发表日期	2020
ISSN	1680-7316
起始页码	13735
结束页码	13751
卷号	20 期号:22
英文摘要	The influence of aerosols, both natural and anthropogenic, remains a major area of uncertainty when predicting the properties and the behaviours of clouds and their influence on climate. In an attempt to better understand the microphysical properties of cloud droplets, the simultaneous variations in aerosol microphysics and their potential interactions during cloud life cycles in the North China Plain, an intensive observation took place from 17 June to 30 July 2018 at the summit of Mt. Tai. Cloud microphysical parameters were monitored simultaneously with number concentrations of cloud condensation nuclei (NCCN) at different supersaturations, PM2:5 mass concentrations, particle size distributions and meteorological parameters. Number concentrations of cloud droplets (NC), liquid water content (LWC) and effective radius of cloud droplets (reff) show large variations among 40 cloud events observed during the campaign. The low values of reff and LWC observed at Mt. Tai are comparable with urban fog. Clouds on clean days are more susceptible to the change in concentrations of particle number (NP), while clouds formed on polluted days might be more sensitive to meteorological parameters, such as updraft velocity and cloud base height. Through studying the size distributions of aerosol particles and cloud droplets, we find that particles larger than 150 nm play important roles in forming cloud droplets with the size of 5-10 μm. In general, LWC consistently varies with reff. As NC increases, reff changes from a trimodal distribution to a unimodal distribution and shifts to smaller size mode. By assuming a constant cloud thickness and ignoring any lifetime effects, increase in NC and decrease in reff would increase cloud albedo, which may induce a cooling effect on the local climate system. Our results contribute valuable information to enhance the understanding of cloud and aerosol properties, along with their potential interactions on the North China plain. © Author(s) 2020.
语种	英语
scopus关键词	aerosol; atmospheric chemistry; cloud condensation nucleus; cloud droplet; cloud microphysics; concentration (composition); saturation; size distribution; water content; China; North China Plain; Shandong; Tai Shan
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/247369
作者单位	Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Institute of Atmospheric Sciences, Fudan University, Shanghai, 200438, China; Environment Research Institute, School of Environmental Science and Engineering, Shandong University, Ji'nan, 250100, China; Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Beijing, 10085, China; Center for Excellence in Urban Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Science, Xiamen, 361021, China; University of Chinese Academy of Sciences, Beijing, 100049, China; State Environ. Protect. Key Lab. of Urban Ambient Air Particulate Matter Poll. Prev. and Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China; Tai'An Municipal Ecological Environment Bureau, Shandong tai'An Ecological Environment Monitoring Center, Tai'an, 271000, China; Leibniz Institute for Tropospheric Research, Leipzig, Germ...
推荐引用方式 GB/T 7714	Li J.,Zhu C.,Chen H.,et al. The evolution of cloud and aerosol microphysics at the summit of Mt. Tai, China[J],2020,20(22).
APA	Li J..,Zhu C..,Chen H..,Zhao D..,Xue L..,...&Chen J..(2020).The evolution of cloud and aerosol microphysics at the summit of Mt. Tai, China.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(22).
MLA	Li J.,et al."The evolution of cloud and aerosol microphysics at the summit of Mt. Tai, China".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.22(2020).