Contribution of fluorescent primary biological aerosol particles to low-level Arctic cloud residuals
Mixed-phase clouds (MPCs) are key players in the Arctic climate system due to their role in modulating solar and terrestrial radiation. Such radiative interactions rely, among other factors, on the ice content of MPCs, which is regulated by the availability of ice-nucleating particles (INPs). While...
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Online Access: | https://hdl.handle.net/10037/33599 https://doi.org/10.5194/acp-24-5479-2024 |
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ftunivtroemsoe:oai:munin.uit.no:10037/33599 2024-06-23T07:48:44+00:00 Contribution of fluorescent primary biological aerosol particles to low-level Arctic cloud residuals Pereira Freitas, Gabriel Kopec, Ben Adachi, Kouji Krejci, Radovan Heslin-Rees, Dominic Yttri, Karl Espen Hubbard, Alun Lloyd Welker, Jeffrey M. Zieger, Paul 2024-05-13 https://hdl.handle.net/10037/33599 https://doi.org/10.5194/acp-24-5479-2024 eng eng Copernicus Publications Atmospheric Chemistry and Physics (ACP) info:eu-repo/grantAgreement/EC/H2020/821205/EU/Constrained aerosol forcing for improved climate projections/FORCeS/ info:eu-repo/grantAgreement/EC/H2020/101003826/EU/Antarctica’s meteorites are disappearing into the ice, say scientists/CRiceS/ Pereira Freitas, Kopec BG, Adachi K, Krejci R, Heslin-Rees D, Yttri KE, Hubbard AL, Welker JM, Zieger P. Contribution of fluorescent primary biological aerosol particles to low-level Arctic cloud residuals. Atmospheric Chemistry and Physics (ACP). 2024;24:5479-5494 FRIDAID 2269558 doi:10.5194/acp-24-5479-2024 1680-7316 1680-7324 https://hdl.handle.net/10037/33599 Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2024 The Author(s) https://creativecommons.org/licenses/by/4.0 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2024 ftunivtroemsoe https://doi.org/10.5194/acp-24-5479-2024 2024-05-29T00:47:55Z Mixed-phase clouds (MPCs) are key players in the Arctic climate system due to their role in modulating solar and terrestrial radiation. Such radiative interactions rely, among other factors, on the ice content of MPCs, which is regulated by the availability of ice-nucleating particles (INPs). While it appears that INPs are associated with the presence of primary biological aerosol particles (PBAPs) in the Arctic, the nuances of the processes and patterns of INPs and their association with clouds and moisture sources have not been resolved. Here, we investigated for a full year the abundance of and variability in fluorescent PBAPs (fPBAPs) within cloud residuals, directly sampled by a multiparameter bioaerosol spectrometer coupled to a ground-based counterflow virtual impactor inlet at the Zeppelin Observatory (475 m a.s.l.) in Ny-Ålesund, Svalbard. fPBAP concentrations (10−3–10−2 L−1) and contributions to coarse-mode cloud residuals (0.1 to 1 in every 103 particles) were found to be close to those expected for high-temperature INPs. Transmission electron microscopy confirmed the presence of PBAPs, most likely bacteria, within one cloud residual sample. Seasonally, our results reveal an elevated presence of fPBAPs within cloud residuals in summer. Parallel water vapor isotope measurements point towards a link between summer clouds and regionally sourced air masses. Low-level MPCs were predominantly observed at the beginning and end of summer, and one explanation for their presence is the existence of high-temperature INPs. In this study, we present direct observational evidence that fPBAPs may play an important role in determining the phase of low-level Arctic clouds. These findings have potential implications for the future description of sources of ice nuclei given ongoing changes in the hydrological and biogeochemical cycles that will influence the PBAP flux in and towards the Arctic. Article in Journal/Newspaper Arctic Arctic Ny Ålesund Ny-Ålesund Svalbard University of Tromsø: Munin Open Research Archive Arctic Svalbard Ny-Ålesund Atmospheric Chemistry and Physics 24 9 5479 5494 |
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Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
description |
Mixed-phase clouds (MPCs) are key players in the Arctic climate system due to their role in modulating solar and terrestrial radiation. Such radiative interactions rely, among other factors, on the ice content of MPCs, which is regulated by the availability of ice-nucleating particles (INPs). While it appears that INPs are associated with the presence of primary biological aerosol particles (PBAPs) in the Arctic, the nuances of the processes and patterns of INPs and their association with clouds and moisture sources have not been resolved. Here, we investigated for a full year the abundance of and variability in fluorescent PBAPs (fPBAPs) within cloud residuals, directly sampled by a multiparameter bioaerosol spectrometer coupled to a ground-based counterflow virtual impactor inlet at the Zeppelin Observatory (475 m a.s.l.) in Ny-Ålesund, Svalbard. fPBAP concentrations (10−3–10−2 L−1) and contributions to coarse-mode cloud residuals (0.1 to 1 in every 103 particles) were found to be close to those expected for high-temperature INPs. Transmission electron microscopy confirmed the presence of PBAPs, most likely bacteria, within one cloud residual sample. Seasonally, our results reveal an elevated presence of fPBAPs within cloud residuals in summer. Parallel water vapor isotope measurements point towards a link between summer clouds and regionally sourced air masses. Low-level MPCs were predominantly observed at the beginning and end of summer, and one explanation for their presence is the existence of high-temperature INPs. In this study, we present direct observational evidence that fPBAPs may play an important role in determining the phase of low-level Arctic clouds. These findings have potential implications for the future description of sources of ice nuclei given ongoing changes in the hydrological and biogeochemical cycles that will influence the PBAP flux in and towards the Arctic. |
format |
Article in Journal/Newspaper |
author |
Pereira Freitas, Gabriel Kopec, Ben Adachi, Kouji Krejci, Radovan Heslin-Rees, Dominic Yttri, Karl Espen Hubbard, Alun Lloyd Welker, Jeffrey M. Zieger, Paul |
spellingShingle |
Pereira Freitas, Gabriel Kopec, Ben Adachi, Kouji Krejci, Radovan Heslin-Rees, Dominic Yttri, Karl Espen Hubbard, Alun Lloyd Welker, Jeffrey M. Zieger, Paul Contribution of fluorescent primary biological aerosol particles to low-level Arctic cloud residuals |
author_facet |
Pereira Freitas, Gabriel Kopec, Ben Adachi, Kouji Krejci, Radovan Heslin-Rees, Dominic Yttri, Karl Espen Hubbard, Alun Lloyd Welker, Jeffrey M. Zieger, Paul |
author_sort |
Pereira Freitas, Gabriel |
title |
Contribution of fluorescent primary biological aerosol particles to low-level Arctic cloud residuals |
title_short |
Contribution of fluorescent primary biological aerosol particles to low-level Arctic cloud residuals |
title_full |
Contribution of fluorescent primary biological aerosol particles to low-level Arctic cloud residuals |
title_fullStr |
Contribution of fluorescent primary biological aerosol particles to low-level Arctic cloud residuals |
title_full_unstemmed |
Contribution of fluorescent primary biological aerosol particles to low-level Arctic cloud residuals |
title_sort |
contribution of fluorescent primary biological aerosol particles to low-level arctic cloud residuals |
publisher |
Copernicus Publications |
publishDate |
2024 |
url |
https://hdl.handle.net/10037/33599 https://doi.org/10.5194/acp-24-5479-2024 |
geographic |
Arctic Svalbard Ny-Ålesund |
geographic_facet |
Arctic Svalbard Ny-Ålesund |
genre |
Arctic Arctic Ny Ålesund Ny-Ålesund Svalbard |
genre_facet |
Arctic Arctic Ny Ålesund Ny-Ålesund Svalbard |
op_relation |
Atmospheric Chemistry and Physics (ACP) info:eu-repo/grantAgreement/EC/H2020/821205/EU/Constrained aerosol forcing for improved climate projections/FORCeS/ info:eu-repo/grantAgreement/EC/H2020/101003826/EU/Antarctica’s meteorites are disappearing into the ice, say scientists/CRiceS/ Pereira Freitas, Kopec BG, Adachi K, Krejci R, Heslin-Rees D, Yttri KE, Hubbard AL, Welker JM, Zieger P. Contribution of fluorescent primary biological aerosol particles to low-level Arctic cloud residuals. Atmospheric Chemistry and Physics (ACP). 2024;24:5479-5494 FRIDAID 2269558 doi:10.5194/acp-24-5479-2024 1680-7316 1680-7324 https://hdl.handle.net/10037/33599 |
op_rights |
Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2024 The Author(s) https://creativecommons.org/licenses/by/4.0 |
op_doi |
https://doi.org/10.5194/acp-24-5479-2024 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
24 |
container_issue |
9 |
container_start_page |
5479 |
op_container_end_page |
5494 |
_version_ |
1802639050676371456 |