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Stochastic nucleation processes and substrate abundance explain time-dependent freezing in supercooled droplets

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...

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Autores principales: Knopf, Daniel A., Alpert, Peter A., Zipori, Assaf, Reicher, Naama, Rudich, Yinon
Formato: Online Artículo Texto
Lenguaje:English
Publicado: 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7402410/
https://www.ncbi.nlm.nih.gov/pubmed/32754650
http://dx.doi.org/10.1038/s41612-020-0106-4
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author Knopf, Daniel A.
Alpert, Peter A.
Zipori, Assaf
Reicher, Naama
Rudich, Yinon
author_facet Knopf, Daniel A.
Alpert, Peter A.
Zipori, Assaf
Reicher, Naama
Rudich, Yinon
author_sort Knopf, Daniel A.
collection PubMed
description 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.
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spelling pubmed-74024102020-08-04 Stochastic nucleation processes and substrate abundance explain time-dependent freezing in supercooled droplets Knopf, Daniel A. Alpert, Peter A. Zipori, Assaf Reicher, Naama Rudich, Yinon NPJ Clim Atmos Sci Article 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. 2020-01-17 2020-02 /pmc/articles/PMC7402410/ /pubmed/32754650 http://dx.doi.org/10.1038/s41612-020-0106-4 Text en Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy ofthis license, visit http://creativecommons.org/licenses/by/4.0/. Reprints and permission information is available at http://www.nature.com/reprints
spellingShingle Article
Knopf, Daniel A.
Alpert, Peter A.
Zipori, Assaf
Reicher, Naama
Rudich, Yinon
Stochastic nucleation processes and substrate abundance explain time-dependent freezing in supercooled droplets
title Stochastic nucleation processes and substrate abundance explain time-dependent freezing in supercooled droplets
title_full Stochastic nucleation processes and substrate abundance explain time-dependent freezing in supercooled droplets
title_fullStr Stochastic nucleation processes and substrate abundance explain time-dependent freezing in supercooled droplets
title_full_unstemmed Stochastic nucleation processes and substrate abundance explain time-dependent freezing in supercooled droplets
title_short Stochastic nucleation processes and substrate abundance explain time-dependent freezing in supercooled droplets
title_sort stochastic nucleation processes and substrate abundance explain time-dependent freezing in supercooled droplets
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7402410/
https://www.ncbi.nlm.nih.gov/pubmed/32754650
http://dx.doi.org/10.1038/s41612-020-0106-4
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