Simultaneous organic aerosol source apportionment at two Antarctic sites reveals large-scale and eco-region specific components
Antarctica and the Southern Ocean are the most pristine areas of the globe and represent ideal places to investigate aerosol-climate interactions in an unperturbed atmosphere. In this study, we present PM1 (Particulate Matter < 1µm) source apportionment for two sample sets collected in parallel a...
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Copernicus Publications
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00069337 2023-11-12T04:06:19+01:00 Simultaneous organic aerosol source apportionment at two Antarctic sites reveals large-scale and eco-region specific components Paglione, Marco Beddows, David C. S. Jones, Anna Lachlan-Cope, Thomas Rinaldi, Matteo Decesari, Stefano Manarini, Francesco Russo, Mara Mansour, Karam Harrison, Roy M. Mazzanti, Andrea Tagliavini, Emilio Dall'Osto, Manuel 2023-10 electronic https://doi.org/10.5194/egusphere-2023-2275 https://noa.gwlb.de/receive/cop_mods_00069337 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00067724/egusphere-2023-2275.pdf https://egusphere.copernicus.org/preprints/2023/egusphere-2023-2275/egusphere-2023-2275.pdf eng eng Copernicus Publications https://doi.org/10.5194/egusphere-2023-2275 https://noa.gwlb.de/receive/cop_mods_00069337 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00067724/egusphere-2023-2275.pdf https://egusphere.copernicus.org/preprints/2023/egusphere-2023-2275/egusphere-2023-2275.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2023 ftnonlinearchiv https://doi.org/10.5194/egusphere-2023-2275 2023-10-22T23:22:31Z Antarctica and the Southern Ocean are the most pristine areas of the globe and represent ideal places to investigate aerosol-climate interactions in an unperturbed atmosphere. In this study, we present PM1 (Particulate Matter < 1µm) source apportionment for two sample sets collected in parallel at two British Antarctic Survey (BAS) stations, namely Signy and Halley, during the austral summer 2018–2019. We find that Water Soluble Organic Matter (WSOM) is a major aerosol component at both sites (average 25–33 %). Remarkable differences between pelagic (open ocean) and sympagic (influenced by sea ice) air mass histories and related aerosol sources are found. The application of non-negative factor analysis techniques to H-NMR spectra of the samples allows the identification of five Organic Aerosol (OA) sources: two primary (POA) types, two secondary (SOA) types, and a fifth component of unclear origin possibly associated with the atmospheric ageing of primary emissions and dominating at Halley. Overall, the concentrations of primary and secondary organic aerosols are prevalently dictated by the emissions in sympagic and pelagic marine regions, with atmospheric circulation causing to establish marked latitudinal gradients only for some of such aerosol components. Our results strongly indicate that various sources and aerosols processes are controlling the Antarctic aerosol population, with the emissions from sympagic and pelagic ecosystems affecting the variability of submicron aerosol composition both in maritime areas as in inner Antarctic regions. Article in Journal/Newspaper Antarc* Antarctic Antarctica British Antarctic Survey Sea ice Southern Ocean Niedersächsisches Online-Archiv NOA Antarctic Southern Ocean The Antarctic Austral |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Paglione, Marco Beddows, David C. S. Jones, Anna Lachlan-Cope, Thomas Rinaldi, Matteo Decesari, Stefano Manarini, Francesco Russo, Mara Mansour, Karam Harrison, Roy M. Mazzanti, Andrea Tagliavini, Emilio Dall'Osto, Manuel Simultaneous organic aerosol source apportionment at two Antarctic sites reveals large-scale and eco-region specific components |
topic_facet |
article Verlagsveröffentlichung |
description |
Antarctica and the Southern Ocean are the most pristine areas of the globe and represent ideal places to investigate aerosol-climate interactions in an unperturbed atmosphere. In this study, we present PM1 (Particulate Matter < 1µm) source apportionment for two sample sets collected in parallel at two British Antarctic Survey (BAS) stations, namely Signy and Halley, during the austral summer 2018–2019. We find that Water Soluble Organic Matter (WSOM) is a major aerosol component at both sites (average 25–33 %). Remarkable differences between pelagic (open ocean) and sympagic (influenced by sea ice) air mass histories and related aerosol sources are found. The application of non-negative factor analysis techniques to H-NMR spectra of the samples allows the identification of five Organic Aerosol (OA) sources: two primary (POA) types, two secondary (SOA) types, and a fifth component of unclear origin possibly associated with the atmospheric ageing of primary emissions and dominating at Halley. Overall, the concentrations of primary and secondary organic aerosols are prevalently dictated by the emissions in sympagic and pelagic marine regions, with atmospheric circulation causing to establish marked latitudinal gradients only for some of such aerosol components. Our results strongly indicate that various sources and aerosols processes are controlling the Antarctic aerosol population, with the emissions from sympagic and pelagic ecosystems affecting the variability of submicron aerosol composition both in maritime areas as in inner Antarctic regions. |
format |
Article in Journal/Newspaper |
author |
Paglione, Marco Beddows, David C. S. Jones, Anna Lachlan-Cope, Thomas Rinaldi, Matteo Decesari, Stefano Manarini, Francesco Russo, Mara Mansour, Karam Harrison, Roy M. Mazzanti, Andrea Tagliavini, Emilio Dall'Osto, Manuel |
author_facet |
Paglione, Marco Beddows, David C. S. Jones, Anna Lachlan-Cope, Thomas Rinaldi, Matteo Decesari, Stefano Manarini, Francesco Russo, Mara Mansour, Karam Harrison, Roy M. Mazzanti, Andrea Tagliavini, Emilio Dall'Osto, Manuel |
author_sort |
Paglione, Marco |
title |
Simultaneous organic aerosol source apportionment at two Antarctic sites reveals large-scale and eco-region specific components |
title_short |
Simultaneous organic aerosol source apportionment at two Antarctic sites reveals large-scale and eco-region specific components |
title_full |
Simultaneous organic aerosol source apportionment at two Antarctic sites reveals large-scale and eco-region specific components |
title_fullStr |
Simultaneous organic aerosol source apportionment at two Antarctic sites reveals large-scale and eco-region specific components |
title_full_unstemmed |
Simultaneous organic aerosol source apportionment at two Antarctic sites reveals large-scale and eco-region specific components |
title_sort |
simultaneous organic aerosol source apportionment at two antarctic sites reveals large-scale and eco-region specific components |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/egusphere-2023-2275 https://noa.gwlb.de/receive/cop_mods_00069337 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00067724/egusphere-2023-2275.pdf https://egusphere.copernicus.org/preprints/2023/egusphere-2023-2275/egusphere-2023-2275.pdf |
geographic |
Antarctic Southern Ocean The Antarctic Austral |
geographic_facet |
Antarctic Southern Ocean The Antarctic Austral |
genre |
Antarc* Antarctic Antarctica British Antarctic Survey Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica British Antarctic Survey Sea ice Southern Ocean |
op_relation |
https://doi.org/10.5194/egusphere-2023-2275 https://noa.gwlb.de/receive/cop_mods_00069337 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00067724/egusphere-2023-2275.pdf https://egusphere.copernicus.org/preprints/2023/egusphere-2023-2275/egusphere-2023-2275.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/egusphere-2023-2275 |
_version_ |
1782327419288420352 |