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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Format: | Article in Journal/Newspaper |
Language: | English |
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Oxford University Press on behalf of the National Academy of Sciences
2023
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Online Access: | http://hdl.handle.net/10138/565560 |
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/565560 2024-01-07T09:40:42+01:00 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 Institute for Atmospheric and Earth System Research (INAR) Air quality research group 2023-09-25T04:51:02Z 11 application/pdf http://hdl.handle.net/10138/565560 eng eng Oxford University Press on behalf of the National Academy of Sciences 10.1093/pnasnexus/pgad124 Kecorius , S , Hoffmann , E H , Tilgner , A , Barrientos-Velasco , C , van Pinxteren , M , Zeppenfeld , S , Vogl , T , Madueño , L , Lovrić , M , Wiedensohler , A , Kulmala , M , Paasonen , P & Herrmann , H 2023 , ' Rapid growth of Aitken-mode particles during Arctic summer by fog chemical processing and its implication ' , PNAS nexus , vol. 2 , no. 5 , pgad124 . https://doi.org/10.1093/pnasnexus/pgad124 ORCID: /0000-0002-4625-9590/work/143281553 37152675 7949220e-ca27-41b9-a108-c035f64e3476 http://hdl.handle.net/10138/565560 001053144200019 cc_by_nc_nd openAccess info:eu-repo/semantics/openAccess Arctic fog Aerosol growth Aqueous-phase processing Cloud condensation nuclei New particle formation 5200 Other social sciences Article publishedVersion 2023 ftunivhelsihelda 2023-12-14T00:03:15Z 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. Peer reviewed Article in Journal/Newspaper Arctic Arctic HELDA – University of Helsinki Open Repository Arctic Aitken ENVELOPE(-44.516,-44.516,-60.733,-60.733) PNAS Nexus 2 5 |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
Arctic fog Aerosol growth Aqueous-phase processing Cloud condensation nuclei New particle formation 5200 Other social sciences |
spellingShingle |
Arctic fog Aerosol growth Aqueous-phase processing Cloud condensation nuclei New particle formation 5200 Other social sciences 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 |
Arctic fog Aerosol growth Aqueous-phase processing Cloud condensation nuclei New particle formation 5200 Other social sciences |
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. Peer reviewed |
author2 |
Institute for Atmospheric and Earth System Research (INAR) Air quality research group |
format |
Article in Journal/Newspaper |
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 on behalf of the National Academy of Sciences |
publishDate |
2023 |
url |
http://hdl.handle.net/10138/565560 |
long_lat |
ENVELOPE(-44.516,-44.516,-60.733,-60.733) |
geographic |
Arctic Aitken |
geographic_facet |
Arctic Aitken |
genre |
Arctic Arctic |
genre_facet |
Arctic Arctic |
op_relation |
10.1093/pnasnexus/pgad124 Kecorius , S , Hoffmann , E H , Tilgner , A , Barrientos-Velasco , C , van Pinxteren , M , Zeppenfeld , S , Vogl , T , Madueño , L , Lovrić , M , Wiedensohler , A , Kulmala , M , Paasonen , P & Herrmann , H 2023 , ' Rapid growth of Aitken-mode particles during Arctic summer by fog chemical processing and its implication ' , PNAS nexus , vol. 2 , no. 5 , pgad124 . https://doi.org/10.1093/pnasnexus/pgad124 ORCID: /0000-0002-4625-9590/work/143281553 37152675 7949220e-ca27-41b9-a108-c035f64e3476 http://hdl.handle.net/10138/565560 001053144200019 |
op_rights |
cc_by_nc_nd openAccess info:eu-repo/semantics/openAccess |
container_title |
PNAS Nexus |
container_volume |
2 |
container_issue |
5 |
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1787421514376675328 |