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Ice-nucleating agents in sea spray aerosol identified and quantified with a holistic multimodal freezing model
Sea spray aerosol (SSA) is a widely recognized important source of ice-nucleating particles (INPs) in the atmosphere. However, composition-specific identification, nucleation processes, and ice nucleation rates of SSA-INPs have not been well constrained. Microspectroscopic characterization of ambien...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Association for the Advancement of Science
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9629709/ https://www.ncbi.nlm.nih.gov/pubmed/36322651 http://dx.doi.org/10.1126/sciadv.abq6842 |
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author | Alpert, Peter A. Kilthau, Wendy P. O’Brien, Rachel E. Moffet, Ryan C. Gilles, Mary K. Wang, Bingbing Laskin, Alexander Aller, Josephine Y. Knopf, Daniel A. |
author_facet | Alpert, Peter A. Kilthau, Wendy P. O’Brien, Rachel E. Moffet, Ryan C. Gilles, Mary K. Wang, Bingbing Laskin, Alexander Aller, Josephine Y. Knopf, Daniel A. |
author_sort | Alpert, Peter A. |
collection | PubMed |
description | Sea spray aerosol (SSA) is a widely recognized important source of ice-nucleating particles (INPs) in the atmosphere. However, composition-specific identification, nucleation processes, and ice nucleation rates of SSA-INPs have not been well constrained. Microspectroscopic characterization of ambient and laboratory-generated SSA confirms that water-borne exudates from planktonic microorganisms composed of a mixture of proteinaceous and polysaccharidic compounds act as ice-nucleating agents (INAs). These data and data from previously published mesocosm and wave channel studies are subsequently used to further develop the stochastic freezing model (SFM) producing ice nucleation rate coefficients for SSA-INPs. The SFM simultaneously predicts immersion freezing and deposition and homogeneous ice nucleation by SSA particles under tropospheric conditions. Predicted INP concentrations agree with ambient and laboratory measurements. In addition, this holistic freezing model is independent of the source and exact composition of the SSA particles, making it well suited for implementation in cloud and climate models. |
format | Online Article Text |
id | pubmed-9629709 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Association for the Advancement of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-96297092022-11-04 Ice-nucleating agents in sea spray aerosol identified and quantified with a holistic multimodal freezing model Alpert, Peter A. Kilthau, Wendy P. O’Brien, Rachel E. Moffet, Ryan C. Gilles, Mary K. Wang, Bingbing Laskin, Alexander Aller, Josephine Y. Knopf, Daniel A. Sci Adv Earth, Environmental, Ecological, and Space Sciences Sea spray aerosol (SSA) is a widely recognized important source of ice-nucleating particles (INPs) in the atmosphere. However, composition-specific identification, nucleation processes, and ice nucleation rates of SSA-INPs have not been well constrained. Microspectroscopic characterization of ambient and laboratory-generated SSA confirms that water-borne exudates from planktonic microorganisms composed of a mixture of proteinaceous and polysaccharidic compounds act as ice-nucleating agents (INAs). These data and data from previously published mesocosm and wave channel studies are subsequently used to further develop the stochastic freezing model (SFM) producing ice nucleation rate coefficients for SSA-INPs. The SFM simultaneously predicts immersion freezing and deposition and homogeneous ice nucleation by SSA particles under tropospheric conditions. Predicted INP concentrations agree with ambient and laboratory measurements. In addition, this holistic freezing model is independent of the source and exact composition of the SSA particles, making it well suited for implementation in cloud and climate models. American Association for the Advancement of Science 2022-11-02 /pmc/articles/PMC9629709/ /pubmed/36322651 http://dx.doi.org/10.1126/sciadv.abq6842 Text en Copyright © 2022 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY). https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Earth, Environmental, Ecological, and Space Sciences Alpert, Peter A. Kilthau, Wendy P. O’Brien, Rachel E. Moffet, Ryan C. Gilles, Mary K. Wang, Bingbing Laskin, Alexander Aller, Josephine Y. Knopf, Daniel A. Ice-nucleating agents in sea spray aerosol identified and quantified with a holistic multimodal freezing model |
title | Ice-nucleating agents in sea spray aerosol identified and quantified with a holistic multimodal freezing model |
title_full | Ice-nucleating agents in sea spray aerosol identified and quantified with a holistic multimodal freezing model |
title_fullStr | Ice-nucleating agents in sea spray aerosol identified and quantified with a holistic multimodal freezing model |
title_full_unstemmed | Ice-nucleating agents in sea spray aerosol identified and quantified with a holistic multimodal freezing model |
title_short | Ice-nucleating agents in sea spray aerosol identified and quantified with a holistic multimodal freezing model |
title_sort | ice-nucleating agents in sea spray aerosol identified and quantified with a holistic multimodal freezing model |
topic | Earth, Environmental, Ecological, and Space Sciences |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9629709/ https://www.ncbi.nlm.nih.gov/pubmed/36322651 http://dx.doi.org/10.1126/sciadv.abq6842 |
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