气候变化领域集成服务门户(CCPortal): Towards parameterising atmospheric concentrations of ice-nucleating particles active at moderate supercooling

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DOI	10.5194/acp-21-657-2021
	Towards parameterising atmospheric concentrations of ice-nucleating particles active at moderate supercooling
	Mignani C.; Wieder J.; Sprenger M.A.; Kanji Z.A.; Henneberger J.; Alewell C.; Conen F.
发表日期	2021
ISSN	1680-7316
起始页码	657
结束页码	664
卷号	21 期号:2
英文摘要	A small fraction of freezing cloud droplets probably initiates much of the precipitation above continents. Only a minute fraction of aerosol particles, so-called icenucleating particles (INPs), can trigger initial ice formation at 15 C, at which cloud-Top temperatures are frequently associated with snowfall. At a mountaintop site in the Swiss Alps, we found that concentrations of INPs active at 15 C can be parameterised by different functions of coarse (2 um) aerosol particle concentrations, depending on whether an air mass is (a) precipitating, (b) nonprecipitating, or (c) carrying a substantial fraction of dust particles while non-precipitating. Consequently, we suggest that a parameterisation at moderate supercooling should consider coarse particles in combination with air mass differentiation. © 2021 Mary Ann Liebert Inc.. All rights reserved.
英文关键词	aerosol; concentration (composition); ice crystal; mountain environment; nucleation; parameter estimation; supercooling; Alps; Switzerland
语种	英语
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/168830
作者单位	Department of Environmental Sciences, University of Basel, Bernoullistrasse 30, Basel, 4056, Switzerland; Institute for Atmospheric and Climate Science, Eth Zurich, Universitätstrasse 16, Zurich, 8092, Switzerland
推荐引用方式 GB/T 7714	Mignani C.,Wieder J.,Sprenger M.A.,et al. Towards parameterising atmospheric concentrations of ice-nucleating particles active at moderate supercooling[J],2021,21(2).
APA	Mignani C..,Wieder J..,Sprenger M.A..,Kanji Z.A..,Henneberger J..,...&Conen F..(2021).Towards parameterising atmospheric concentrations of ice-nucleating particles active at moderate supercooling.Atmospheric Chemistry and Physics,21(2).
MLA	Mignani C.,et al."Towards parameterising atmospheric concentrations of ice-nucleating particles active at moderate supercooling".Atmospheric Chemistry and Physics 21.2(2021).