Physicochemical characterization and source apportionment of Arctic ice-nucleating particles observed in Ny-Ålesund in autumn 2019
Ice-nucleating particles (INPs) initiate primary ice formation in Arctic mixed-phase clouds (MPCs), altering cloud radiative properties and modulating precipitation. For atmospheric INPs, the complexity of their spatiotemporal variations, heterogeneous sources, and evolution via intricate atmospheri...
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ftdoajarticles:oai:doaj.org/article:000fc55a20424be191daa4cad902012a 2023-10-09T21:48:16+02:00 Physicochemical characterization and source apportionment of Arctic ice-nucleating particles observed in Ny-Ålesund in autumn 2019 G. Li E. K. Wilbourn Z. Cheng J. Wieder A. Fagerson J. Henneberger G. Motos R. Traversi S. D. Brooks M. Mazzola S. China A. Nenes U. Lohmann N. Hiranuma Z. A. Kanji 2023-09-01T00:00:00Z https://doi.org/10.5194/acp-23-10489-2023 https://doaj.org/article/000fc55a20424be191daa4cad902012a EN eng Copernicus Publications https://acp.copernicus.org/articles/23/10489/2023/acp-23-10489-2023.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-23-10489-2023 1680-7316 1680-7324 https://doaj.org/article/000fc55a20424be191daa4cad902012a Atmospheric Chemistry and Physics, Vol 23, Pp 10489-10516 (2023) Physics QC1-999 Chemistry QD1-999 article 2023 ftdoajarticles https://doi.org/10.5194/acp-23-10489-2023 2023-09-24T00:34:54Z Ice-nucleating particles (INPs) initiate primary ice formation in Arctic mixed-phase clouds (MPCs), altering cloud radiative properties and modulating precipitation. For atmospheric INPs, the complexity of their spatiotemporal variations, heterogeneous sources, and evolution via intricate atmospheric interactions challenge the understanding of their impact on microphysical processes in Arctic MPCs and induce an uncertain representation in climate models. In this work, we performed a comprehensive analysis of atmospheric aerosols at the Arctic coastal site in Ny-Ålesund (Svalbard, Norway) from October to November 2019, including their ice nucleation ability, physicochemical properties, and potential sources. Overall, INP concentrations ( N INP ) during the observation season were approximately up to 3 orders of magnitude lower compared to the global average, with several samples showing degradation of N INP after heat treatment, implying the presence of proteinaceous INPs. Particle fluorescence was substantially associated with INP concentrations at warmer ice nucleation temperatures, indicating that in the far-reaching Arctic, aerosols of biogenic origin throughout the snow- and ice-free season may serve as important INP sources. In addition, case studies revealed the links between elevated N INP and heat lability, fluorescence, high wind speeds originating from the ocean, augmented concentration of coarse-mode particles, and abundant organics. Backward trajectory analysis demonstrated a potential connection between high-latitude dust sources and high INP concentrations, while prolonged air mass history over the ice pack was identified for most scant INP cases. The combination of the above analyses demonstrates that the abundance, physicochemical properties, and potential sources of INPs in the Arctic are highly variable despite its remote location. Article in Journal/Newspaper Arctic Ny Ålesund Ny-Ålesund Svalbard Directory of Open Access Journals: DOAJ Articles Arctic Norway Ny-Ålesund Svalbard Atmospheric Chemistry and Physics 23 18 10489 10516 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 G. Li E. K. Wilbourn Z. Cheng J. Wieder A. Fagerson J. Henneberger G. Motos R. Traversi S. D. Brooks M. Mazzola S. China A. Nenes U. Lohmann N. Hiranuma Z. A. Kanji Physicochemical characterization and source apportionment of Arctic ice-nucleating particles observed in Ny-Ålesund in autumn 2019 |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
Ice-nucleating particles (INPs) initiate primary ice formation in Arctic mixed-phase clouds (MPCs), altering cloud radiative properties and modulating precipitation. For atmospheric INPs, the complexity of their spatiotemporal variations, heterogeneous sources, and evolution via intricate atmospheric interactions challenge the understanding of their impact on microphysical processes in Arctic MPCs and induce an uncertain representation in climate models. In this work, we performed a comprehensive analysis of atmospheric aerosols at the Arctic coastal site in Ny-Ålesund (Svalbard, Norway) from October to November 2019, including their ice nucleation ability, physicochemical properties, and potential sources. Overall, INP concentrations ( N INP ) during the observation season were approximately up to 3 orders of magnitude lower compared to the global average, with several samples showing degradation of N INP after heat treatment, implying the presence of proteinaceous INPs. Particle fluorescence was substantially associated with INP concentrations at warmer ice nucleation temperatures, indicating that in the far-reaching Arctic, aerosols of biogenic origin throughout the snow- and ice-free season may serve as important INP sources. In addition, case studies revealed the links between elevated N INP and heat lability, fluorescence, high wind speeds originating from the ocean, augmented concentration of coarse-mode particles, and abundant organics. Backward trajectory analysis demonstrated a potential connection between high-latitude dust sources and high INP concentrations, while prolonged air mass history over the ice pack was identified for most scant INP cases. The combination of the above analyses demonstrates that the abundance, physicochemical properties, and potential sources of INPs in the Arctic are highly variable despite its remote location. |
format |
Article in Journal/Newspaper |
author |
G. Li E. K. Wilbourn Z. Cheng J. Wieder A. Fagerson J. Henneberger G. Motos R. Traversi S. D. Brooks M. Mazzola S. China A. Nenes U. Lohmann N. Hiranuma Z. A. Kanji |
author_facet |
G. Li E. K. Wilbourn Z. Cheng J. Wieder A. Fagerson J. Henneberger G. Motos R. Traversi S. D. Brooks M. Mazzola S. China A. Nenes U. Lohmann N. Hiranuma Z. A. Kanji |
author_sort |
G. Li |
title |
Physicochemical characterization and source apportionment of Arctic ice-nucleating particles observed in Ny-Ålesund in autumn 2019 |
title_short |
Physicochemical characterization and source apportionment of Arctic ice-nucleating particles observed in Ny-Ålesund in autumn 2019 |
title_full |
Physicochemical characterization and source apportionment of Arctic ice-nucleating particles observed in Ny-Ålesund in autumn 2019 |
title_fullStr |
Physicochemical characterization and source apportionment of Arctic ice-nucleating particles observed in Ny-Ålesund in autumn 2019 |
title_full_unstemmed |
Physicochemical characterization and source apportionment of Arctic ice-nucleating particles observed in Ny-Ålesund in autumn 2019 |
title_sort |
physicochemical characterization and source apportionment of arctic ice-nucleating particles observed in ny-ålesund in autumn 2019 |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/acp-23-10489-2023 https://doaj.org/article/000fc55a20424be191daa4cad902012a |
geographic |
Arctic Norway Ny-Ålesund Svalbard |
geographic_facet |
Arctic Norway Ny-Ålesund Svalbard |
genre |
Arctic Ny Ålesund Ny-Ålesund Svalbard |
genre_facet |
Arctic Ny Ålesund Ny-Ålesund Svalbard |
op_source |
Atmospheric Chemistry and Physics, Vol 23, Pp 10489-10516 (2023) |
op_relation |
https://acp.copernicus.org/articles/23/10489/2023/acp-23-10489-2023.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-23-10489-2023 1680-7316 1680-7324 https://doaj.org/article/000fc55a20424be191daa4cad902012a |
op_doi |
https://doi.org/10.5194/acp-23-10489-2023 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
23 |
container_issue |
18 |
container_start_page |
10489 |
op_container_end_page |
10516 |
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1779311319866933248 |