气候变化领域集成服务门户(CCPortal): Stochastic nucleation processes and substrate abundance explain time-dependent freezing in supercooled droplets

CCPortal

DOI	10.1038/s41612-020-0106-4
	Stochastic nucleation processes and substrate abundance explain time-dependent freezing in supercooled droplets
	Knopf D.A.; Alpert P.A.; Zipori A.; Reicher N.; Rudich Y.
发表日期	2020
ISSN	23973722
卷号	3 期号:1
英文摘要	Atmospheric immersion freezing (IF), a heterogeneous ice nucleation process where an ice nucleating particle (INP) is immersed in supercooled water, is a dominant ice formation pathway impacting the hydrological cycle and climate. Implementation of IF derived from field and laboratory data in cloud and climate models is difficult due to the high variability in spatio-temporal scales, INP composition, and morphological complexity. We demonstrate that IF can be consistently described by a stochastic nucleation process accounting for uncertainties in the INP surface area. This approach accounts for time-dependent freezing, a wide range of surface areas and challenges phenomenological descriptions typically used to interpret IF. The results have an immediate impact on the current description, interpretation, and experiments of IF and its implementation in models. The findings are in accord with nucleation theory, and thus should hold for any supercooled liquid material that nucleates in contact with a substrate. © 2020, The Author(s).
语种	英语
scopus关键词	climate modeling; cloud droplet; freezing; ice crystal; nucleation; stochasticity
来源期刊	npj Climate and Atmospheric Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178064
作者单位	Institute for Terrestrial and Planetary Atmospheres, School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY 11794-5000, United States; Laboratory of Environmental Chemistry, Paul Scherrer Institute, Villigen, 5232, Switzerland; Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot, 76100, Israel
推荐引用方式 GB/T 7714	Knopf D.A.,Alpert P.A.,Zipori A.,et al. Stochastic nucleation processes and substrate abundance explain time-dependent freezing in supercooled droplets[J],2020,3(1).
APA	Knopf D.A.,Alpert P.A.,Zipori A.,Reicher N.,&Rudich Y..(2020).Stochastic nucleation processes and substrate abundance explain time-dependent freezing in supercooled droplets.npj Climate and Atmospheric Science,3(1).
MLA	Knopf D.A.,et al."Stochastic nucleation processes and substrate abundance explain time-dependent freezing in supercooled droplets".npj Climate and Atmospheric Science 3.1(2020).