Rapid growth of Aitken-mode particles during Arctic summer by fog chemical processing and its implication
In the Arctic, new particle formation (NPF) and subsequent growth processes are the keys to produce Aitken-mode particles, which under certain conditions can act as cloud condensation nuclei (CCNs). The activation of Aitken-mode particles increases the CCN budget of Arctic low-level clouds and, acco...
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ftpubmed:oai:pubmedcentral.nih.gov:10156171 2023-06-11T04:08:08+02:00 Rapid growth of Aitken-mode particles during Arctic summer by fog chemical processing and its implication Kecorius, Simonas Hoffmann, Erik H Tilgner, Andreas Barrientos-Velasco, Carola van Pinxteren, Manuela Zeppenfeld, Sebastian Vogl, Teresa Madueño, Leizel Lovrić, Mario Wiedensohler, Alfred Kulmala, Markku Paasonen, Pauli Herrmann, Hartmut 2023-04-10 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10156171/ https://doi.org/10.1093/pnasnexus/pgad124 en eng Oxford University Press http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10156171/ http://dx.doi.org/10.1093/pnasnexus/pgad124 © The Author(s) 2023. Published by Oxford University Press on behalf of National Academy of Sciences. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs licence (https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reproduction and distribution of the work, in any medium, provided the original work is not altered or transformed in any way, and that the work is properly cited. For commercial re-use, please contact journals.permissions@oup.com PNAS Nexus Physical Sciences and Engineering Text 2023 ftpubmed https://doi.org/10.1093/pnasnexus/pgad124 2023-05-07T01:26:19Z In the Arctic, new particle formation (NPF) and subsequent growth processes are the keys to produce Aitken-mode particles, which under certain conditions can act as cloud condensation nuclei (CCNs). The activation of Aitken-mode particles increases the CCN budget of Arctic low-level clouds and, accordingly, affects Arctic climate forcing. However, the growth mechanism of Aitken-mode particles from NPF into CCN range in the summertime Arctic boundary layer remains a subject of current research. In this combined Arctic cruise field and modeling study, we investigated Aitken-mode particle growth to sizes above 80 nm. A mechanism is suggested that explains how Aitken-mode particles can become CCN without requiring high water vapor supersaturation. Model simulations suggest the formation of semivolatile compounds, such as methanesulfonic acid (MSA) in fog droplets. When the fog droplets evaporate, these compounds repartition from CCNs into the gas phase and into the condensed phase of nonactivated Aitken-mode particles. For MSA, a mass increase factor of 18 is modeled. The postfog redistribution mechanism of semivolatile acidic and basic compounds could explain the observed growth of >20 nm h(−1) for 60-nm particles to sizes above 100 nm. Overall, this study implies that the increasing frequency of NPF and fog-related particle processing can affect Arctic cloud properties in the summertime boundary layer. Text Arctic PubMed Central (PMC) Aitken ENVELOPE(-44.516,-44.516,-60.733,-60.733) Arctic PNAS Nexus 2 5 |
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Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Physical Sciences and Engineering |
spellingShingle |
Physical Sciences and Engineering Kecorius, Simonas Hoffmann, Erik H Tilgner, Andreas Barrientos-Velasco, Carola van Pinxteren, Manuela Zeppenfeld, Sebastian Vogl, Teresa Madueño, Leizel Lovrić, Mario Wiedensohler, Alfred Kulmala, Markku Paasonen, Pauli Herrmann, Hartmut Rapid growth of Aitken-mode particles during Arctic summer by fog chemical processing and its implication |
topic_facet |
Physical Sciences and Engineering |
description |
In the Arctic, new particle formation (NPF) and subsequent growth processes are the keys to produce Aitken-mode particles, which under certain conditions can act as cloud condensation nuclei (CCNs). The activation of Aitken-mode particles increases the CCN budget of Arctic low-level clouds and, accordingly, affects Arctic climate forcing. However, the growth mechanism of Aitken-mode particles from NPF into CCN range in the summertime Arctic boundary layer remains a subject of current research. In this combined Arctic cruise field and modeling study, we investigated Aitken-mode particle growth to sizes above 80 nm. A mechanism is suggested that explains how Aitken-mode particles can become CCN without requiring high water vapor supersaturation. Model simulations suggest the formation of semivolatile compounds, such as methanesulfonic acid (MSA) in fog droplets. When the fog droplets evaporate, these compounds repartition from CCNs into the gas phase and into the condensed phase of nonactivated Aitken-mode particles. For MSA, a mass increase factor of 18 is modeled. The postfog redistribution mechanism of semivolatile acidic and basic compounds could explain the observed growth of >20 nm h(−1) for 60-nm particles to sizes above 100 nm. Overall, this study implies that the increasing frequency of NPF and fog-related particle processing can affect Arctic cloud properties in the summertime boundary layer. |
format |
Text |
author |
Kecorius, Simonas Hoffmann, Erik H Tilgner, Andreas Barrientos-Velasco, Carola van Pinxteren, Manuela Zeppenfeld, Sebastian Vogl, Teresa Madueño, Leizel Lovrić, Mario Wiedensohler, Alfred Kulmala, Markku Paasonen, Pauli Herrmann, Hartmut |
author_facet |
Kecorius, Simonas Hoffmann, Erik H Tilgner, Andreas Barrientos-Velasco, Carola van Pinxteren, Manuela Zeppenfeld, Sebastian Vogl, Teresa Madueño, Leizel Lovrić, Mario Wiedensohler, Alfred Kulmala, Markku Paasonen, Pauli Herrmann, Hartmut |
author_sort |
Kecorius, Simonas |
title |
Rapid growth of Aitken-mode particles during Arctic summer by fog chemical processing and its implication |
title_short |
Rapid growth of Aitken-mode particles during Arctic summer by fog chemical processing and its implication |
title_full |
Rapid growth of Aitken-mode particles during Arctic summer by fog chemical processing and its implication |
title_fullStr |
Rapid growth of Aitken-mode particles during Arctic summer by fog chemical processing and its implication |
title_full_unstemmed |
Rapid growth of Aitken-mode particles during Arctic summer by fog chemical processing and its implication |
title_sort |
rapid growth of aitken-mode particles during arctic summer by fog chemical processing and its implication |
publisher |
Oxford University Press |
publishDate |
2023 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10156171/ https://doi.org/10.1093/pnasnexus/pgad124 |
long_lat |
ENVELOPE(-44.516,-44.516,-60.733,-60.733) |
geographic |
Aitken Arctic |
geographic_facet |
Aitken Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
PNAS Nexus |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10156171/ http://dx.doi.org/10.1093/pnasnexus/pgad124 |
op_rights |
© The Author(s) 2023. Published by Oxford University Press on behalf of National Academy of Sciences. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs licence (https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reproduction and distribution of the work, in any medium, provided the original work is not altered or transformed in any way, and that the work is properly cited. For commercial re-use, please contact journals.permissions@oup.com |
op_doi |
https://doi.org/10.1093/pnasnexus/pgad124 |
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PNAS Nexus |
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2 |
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5 |
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