Atmospheric particle abundance and sea salt aerosol observations in the springtime Arctic: a focus on blowing snow and leads
Sea salt aerosols play an important role in the radiation budget and atmospheric composition over the Arctic, where the climate is rapidly changing. Previous observational studies have shown that Arctic sea ice leads are an important source of sea salt aerosols, and modeling efforts have also propos...
Published in: | Atmospheric Chemistry and Physics |
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2022
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00063712 2023-05-15T14:53:04+02:00 Atmospheric particle abundance and sea salt aerosol observations in the springtime Arctic: a focus on blowing snow and leads Chen, Qianjie Mirrielees, Jessica A. Thanekar, Sham Loeb, Nicole A. Kirpes, Rachel M. Upchurch, Lucia M. Barget, Anna J. Lata, Nurun Nahar Raso, Angela R. W. McNamara, Stephen M. China, Swarup Quinn, Patricia K. Ault, Andrew P. Kennedy, Aaron Shepson, Paul B. Fuentes, Jose D. Pratt, Kerri A. 2022-12 electronic https://doi.org/10.5194/acp-22-15263-2022 https://noa.gwlb.de/receive/cop_mods_00063712 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00062687/acp-22-15263-2022.pdf https://acp.copernicus.org/articles/22/15263/2022/acp-22-15263-2022.pdf eng eng Copernicus Publications Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-22-15263-2022 https://noa.gwlb.de/receive/cop_mods_00063712 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00062687/acp-22-15263-2022.pdf https://acp.copernicus.org/articles/22/15263/2022/acp-22-15263-2022.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2022 ftnonlinearchiv https://doi.org/10.5194/acp-22-15263-2022 2022-12-05T00:12:17Z Sea salt aerosols play an important role in the radiation budget and atmospheric composition over the Arctic, where the climate is rapidly changing. Previous observational studies have shown that Arctic sea ice leads are an important source of sea salt aerosols, and modeling efforts have also proposed blowing snow sublimation as a source. In this study, size-resolved atmospheric particle number concentrations and chemical composition were measured at the Arctic coastal tundra site of Utqiaġvik, Alaska, during spring (3 April–7 May 2016). Blowing snow conditions were observed during 25 % of the 5-week study period and were overpredicted by a commonly used blowing snow parameterization based solely on wind speed and temperature. Throughout the study, open leads were present locally. During periods when blowing snow was observed, significant increases in the number concentrations of 0.01–0.06 µm particles (factor of 6, on average) and 0.06–0.3 µm particles (67 %, on average) and a significant decrease (82 %, on average) in 1–4 µm particles were observed compared to low wind speed periods. These size distribution changes were likely caused by the generation of ultrafine particles from leads and/or blowing snow, with scavenging of supermicron particles by blowing snow. At elevated wind speeds, both submicron and supermicron sodium and chloride mass concentrations were enhanced, consistent with wind-dependent local sea salt aerosol production. At moderate wind speeds below the threshold for blowing snow as well as during observed blowing snow, individual sea spray aerosol particles were measured. These individual salt particles were enriched in calcium relative to sodium in seawater due to the binding of this divalent cation with organic matter in the sea surface microlayer and subsequent enrichment during seawater bubble bursting. The chemical composition of the surface snowpack also showed contributions from sea spray aerosol deposition. Overall, these results show the contribution of sea spray aerosol production ... Article in Journal/Newspaper Arctic Sea ice Tundra Alaska Niedersächsisches Online-Archiv NOA Arctic Atmospheric Chemistry and Physics 22 23 15263 15285 |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Chen, Qianjie Mirrielees, Jessica A. Thanekar, Sham Loeb, Nicole A. Kirpes, Rachel M. Upchurch, Lucia M. Barget, Anna J. Lata, Nurun Nahar Raso, Angela R. W. McNamara, Stephen M. China, Swarup Quinn, Patricia K. Ault, Andrew P. Kennedy, Aaron Shepson, Paul B. Fuentes, Jose D. Pratt, Kerri A. Atmospheric particle abundance and sea salt aerosol observations in the springtime Arctic: a focus on blowing snow and leads |
topic_facet |
article Verlagsveröffentlichung |
description |
Sea salt aerosols play an important role in the radiation budget and atmospheric composition over the Arctic, where the climate is rapidly changing. Previous observational studies have shown that Arctic sea ice leads are an important source of sea salt aerosols, and modeling efforts have also proposed blowing snow sublimation as a source. In this study, size-resolved atmospheric particle number concentrations and chemical composition were measured at the Arctic coastal tundra site of Utqiaġvik, Alaska, during spring (3 April–7 May 2016). Blowing snow conditions were observed during 25 % of the 5-week study period and were overpredicted by a commonly used blowing snow parameterization based solely on wind speed and temperature. Throughout the study, open leads were present locally. During periods when blowing snow was observed, significant increases in the number concentrations of 0.01–0.06 µm particles (factor of 6, on average) and 0.06–0.3 µm particles (67 %, on average) and a significant decrease (82 %, on average) in 1–4 µm particles were observed compared to low wind speed periods. These size distribution changes were likely caused by the generation of ultrafine particles from leads and/or blowing snow, with scavenging of supermicron particles by blowing snow. At elevated wind speeds, both submicron and supermicron sodium and chloride mass concentrations were enhanced, consistent with wind-dependent local sea salt aerosol production. At moderate wind speeds below the threshold for blowing snow as well as during observed blowing snow, individual sea spray aerosol particles were measured. These individual salt particles were enriched in calcium relative to sodium in seawater due to the binding of this divalent cation with organic matter in the sea surface microlayer and subsequent enrichment during seawater bubble bursting. The chemical composition of the surface snowpack also showed contributions from sea spray aerosol deposition. Overall, these results show the contribution of sea spray aerosol production ... |
format |
Article in Journal/Newspaper |
author |
Chen, Qianjie Mirrielees, Jessica A. Thanekar, Sham Loeb, Nicole A. Kirpes, Rachel M. Upchurch, Lucia M. Barget, Anna J. Lata, Nurun Nahar Raso, Angela R. W. McNamara, Stephen M. China, Swarup Quinn, Patricia K. Ault, Andrew P. Kennedy, Aaron Shepson, Paul B. Fuentes, Jose D. Pratt, Kerri A. |
author_facet |
Chen, Qianjie Mirrielees, Jessica A. Thanekar, Sham Loeb, Nicole A. Kirpes, Rachel M. Upchurch, Lucia M. Barget, Anna J. Lata, Nurun Nahar Raso, Angela R. W. McNamara, Stephen M. China, Swarup Quinn, Patricia K. Ault, Andrew P. Kennedy, Aaron Shepson, Paul B. Fuentes, Jose D. Pratt, Kerri A. |
author_sort |
Chen, Qianjie |
title |
Atmospheric particle abundance and sea salt aerosol observations in the springtime Arctic: a focus on blowing snow and leads |
title_short |
Atmospheric particle abundance and sea salt aerosol observations in the springtime Arctic: a focus on blowing snow and leads |
title_full |
Atmospheric particle abundance and sea salt aerosol observations in the springtime Arctic: a focus on blowing snow and leads |
title_fullStr |
Atmospheric particle abundance and sea salt aerosol observations in the springtime Arctic: a focus on blowing snow and leads |
title_full_unstemmed |
Atmospheric particle abundance and sea salt aerosol observations in the springtime Arctic: a focus on blowing snow and leads |
title_sort |
atmospheric particle abundance and sea salt aerosol observations in the springtime arctic: a focus on blowing snow and leads |
publisher |
Copernicus Publications |
publishDate |
2022 |
url |
https://doi.org/10.5194/acp-22-15263-2022 https://noa.gwlb.de/receive/cop_mods_00063712 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00062687/acp-22-15263-2022.pdf https://acp.copernicus.org/articles/22/15263/2022/acp-22-15263-2022.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice Tundra Alaska |
genre_facet |
Arctic Sea ice Tundra Alaska |
op_relation |
Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-22-15263-2022 https://noa.gwlb.de/receive/cop_mods_00063712 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00062687/acp-22-15263-2022.pdf https://acp.copernicus.org/articles/22/15263/2022/acp-22-15263-2022.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/acp-22-15263-2022 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
22 |
container_issue |
23 |
container_start_page |
15263 |
op_container_end_page |
15285 |
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1766324485903876096 |