Concentrations, composition, and sources of ice-nucleating particles in the Canadian High Arctic during spring 2016
Modelling studies suggest that the climate and the hydrological cycle are sensitive to the concentrations of ice-nucleating particles (INPs). However, the concentrations, composition, and sources of INPs in the atmosphere remain uncertain. Here, we report daily concentrations of INPs in the immersio...
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2019
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00002979 2023-05-15T14:55:44+02:00 Concentrations, composition, and sources of ice-nucleating particles in the Canadian High Arctic during spring 2016 Si, Meng Evoy, Erin Yun, Jingwei Xi, Yu Hanna, Sarah J. Chivulescu, Alina Rawlings, Kevin Veber, Daniel Platt, Andrew Kunkel, Daniel Hoor, Peter Sharma, Sangeeta Leaitch, W. Richard Bertram, Allan K. 2019-03 electronic https://doi.org/10.5194/acp-19-3007-2019 https://noa.gwlb.de/receive/cop_mods_00002979 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00002937/acp-19-3007-2019.pdf https://acp.copernicus.org/articles/19/3007/2019/acp-19-3007-2019.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-19-3007-2019 https://noa.gwlb.de/receive/cop_mods_00002979 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00002937/acp-19-3007-2019.pdf https://acp.copernicus.org/articles/19/3007/2019/acp-19-3007-2019.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2019 ftnonlinearchiv https://doi.org/10.5194/acp-19-3007-2019 2022-02-08T23:00:50Z Modelling studies suggest that the climate and the hydrological cycle are sensitive to the concentrations of ice-nucleating particles (INPs). However, the concentrations, composition, and sources of INPs in the atmosphere remain uncertain. Here, we report daily concentrations of INPs in the immersion freezing mode and tracers of mineral dust (Al, Fe, Ti, and Mn), sea spray aerosol (Na+ and Cl−), and anthropogenic aerosol (Zn, Pb, NO3-, NH4+, and non-sea-salt SO42-) at Alert, Canada, during a 3-week campaign in March 2016. In total, 16 daily measurements of INPs are reported. The average INP concentrations measured in the immersion freezing mode were 0.005±0.002, 0.020±0.004, and 0.186±0.040 L−1 at −15, −20, and −25 ∘C, respectively. These concentrations are within the range of concentrations measured previously in the Arctic at ground level or sea level. Mineral dust tracers all correlated with INPs at −25 ∘C (correlation coefficient, R, ranged from 0.70 to 0.76), suggesting that mineral dust was a major contributor to the INP population at −25 ∘C. Particle dispersion modelling suggests that the source of the mineral dust may have been long-range transport from the Gobi Desert. Sea spray tracers were anti-correlated with INPs at −25 ∘C ( R=-0.56). In addition, INP concentrations at −25 ∘C divided by mass concentrations of aluminum were anti-correlated with sea spray tracers ( R=-0.51 and −0.55 for Na+ and Cl−, respectively), suggesting that the components of sea spray aerosol suppressed the ice-nucleating ability of mineral dust in the immersion freezing mode. Correlations between INPs and anthropogenic aerosol tracers were not statistically significant. These results will improve our understanding of INPs in the Arctic during spring. Article in Journal/Newspaper Arctic Niedersächsisches Online-Archiv NOA Arctic Canada Atmospheric Chemistry and Physics 19 5 3007 3024 |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Si, Meng Evoy, Erin Yun, Jingwei Xi, Yu Hanna, Sarah J. Chivulescu, Alina Rawlings, Kevin Veber, Daniel Platt, Andrew Kunkel, Daniel Hoor, Peter Sharma, Sangeeta Leaitch, W. Richard Bertram, Allan K. Concentrations, composition, and sources of ice-nucleating particles in the Canadian High Arctic during spring 2016 |
topic_facet |
article Verlagsveröffentlichung |
description |
Modelling studies suggest that the climate and the hydrological cycle are sensitive to the concentrations of ice-nucleating particles (INPs). However, the concentrations, composition, and sources of INPs in the atmosphere remain uncertain. Here, we report daily concentrations of INPs in the immersion freezing mode and tracers of mineral dust (Al, Fe, Ti, and Mn), sea spray aerosol (Na+ and Cl−), and anthropogenic aerosol (Zn, Pb, NO3-, NH4+, and non-sea-salt SO42-) at Alert, Canada, during a 3-week campaign in March 2016. In total, 16 daily measurements of INPs are reported. The average INP concentrations measured in the immersion freezing mode were 0.005±0.002, 0.020±0.004, and 0.186±0.040 L−1 at −15, −20, and −25 ∘C, respectively. These concentrations are within the range of concentrations measured previously in the Arctic at ground level or sea level. Mineral dust tracers all correlated with INPs at −25 ∘C (correlation coefficient, R, ranged from 0.70 to 0.76), suggesting that mineral dust was a major contributor to the INP population at −25 ∘C. Particle dispersion modelling suggests that the source of the mineral dust may have been long-range transport from the Gobi Desert. Sea spray tracers were anti-correlated with INPs at −25 ∘C ( R=-0.56). In addition, INP concentrations at −25 ∘C divided by mass concentrations of aluminum were anti-correlated with sea spray tracers ( R=-0.51 and −0.55 for Na+ and Cl−, respectively), suggesting that the components of sea spray aerosol suppressed the ice-nucleating ability of mineral dust in the immersion freezing mode. Correlations between INPs and anthropogenic aerosol tracers were not statistically significant. These results will improve our understanding of INPs in the Arctic during spring. |
format |
Article in Journal/Newspaper |
author |
Si, Meng Evoy, Erin Yun, Jingwei Xi, Yu Hanna, Sarah J. Chivulescu, Alina Rawlings, Kevin Veber, Daniel Platt, Andrew Kunkel, Daniel Hoor, Peter Sharma, Sangeeta Leaitch, W. Richard Bertram, Allan K. |
author_facet |
Si, Meng Evoy, Erin Yun, Jingwei Xi, Yu Hanna, Sarah J. Chivulescu, Alina Rawlings, Kevin Veber, Daniel Platt, Andrew Kunkel, Daniel Hoor, Peter Sharma, Sangeeta Leaitch, W. Richard Bertram, Allan K. |
author_sort |
Si, Meng |
title |
Concentrations, composition, and sources of ice-nucleating particles in the Canadian High Arctic during spring 2016 |
title_short |
Concentrations, composition, and sources of ice-nucleating particles in the Canadian High Arctic during spring 2016 |
title_full |
Concentrations, composition, and sources of ice-nucleating particles in the Canadian High Arctic during spring 2016 |
title_fullStr |
Concentrations, composition, and sources of ice-nucleating particles in the Canadian High Arctic during spring 2016 |
title_full_unstemmed |
Concentrations, composition, and sources of ice-nucleating particles in the Canadian High Arctic during spring 2016 |
title_sort |
concentrations, composition, and sources of ice-nucleating particles in the canadian high arctic during spring 2016 |
publisher |
Copernicus Publications |
publishDate |
2019 |
url |
https://doi.org/10.5194/acp-19-3007-2019 https://noa.gwlb.de/receive/cop_mods_00002979 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00002937/acp-19-3007-2019.pdf https://acp.copernicus.org/articles/19/3007/2019/acp-19-3007-2019.pdf |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic |
genre_facet |
Arctic |
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-19-3007-2019 https://noa.gwlb.de/receive/cop_mods_00002979 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00002937/acp-19-3007-2019.pdf https://acp.copernicus.org/articles/19/3007/2019/acp-19-3007-2019.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-19-3007-2019 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
19 |
container_issue |
5 |
container_start_page |
3007 |
op_container_end_page |
3024 |
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1766327758395277312 |