Ice-nucleating ability of aerosol particles and possible sources at three coastal marine sites
Despite the importance of ice-nucleating particles (INPs) for climate and precipitation, our understanding of these particles is far from complete. Here, we investigated INPs at three coastal marine sites in Canada, two at mid-latitude (Amphitrite Point and Labrador Sea) and one in the Arctic (Lanca...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00041396 2023-05-15T15:13:43+02:00 Ice-nucleating ability of aerosol particles and possible sources at three coastal marine sites Si, Meng Irish, Victoria E. Mason, Ryan H. Vergara-Temprado, Jesús Hanna, Sarah J. Ladino, Luis A. Yakobi-Hancock, Jacqueline D. Schiller, Corinne L. Wentzell, Jeremy J. B. Abbatt, Jonathan P. D. Carslaw, Ken S. Murray, Benjamin J. Bertram, Allan K. 2018-11 electronic https://doi.org/10.5194/acp-18-15669-2018 https://noa.gwlb.de/receive/cop_mods_00041396 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00041016/acp-18-15669-2018.pdf https://acp.copernicus.org/articles/18/15669/2018/acp-18-15669-2018.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-18-15669-2018 https://noa.gwlb.de/receive/cop_mods_00041396 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00041016/acp-18-15669-2018.pdf https://acp.copernicus.org/articles/18/15669/2018/acp-18-15669-2018.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2018 ftnonlinearchiv https://doi.org/10.5194/acp-18-15669-2018 2022-02-08T22:41:40Z Despite the importance of ice-nucleating particles (INPs) for climate and precipitation, our understanding of these particles is far from complete. Here, we investigated INPs at three coastal marine sites in Canada, two at mid-latitude (Amphitrite Point and Labrador Sea) and one in the Arctic (Lancaster Sound). For Amphitrite Point, 23 sets of samples were analyzed, and for Labrador Sea and Lancaster Sound, one set of samples was analyzed for each location. At all three sites, the ice-nucleating ability on a per number basis (expressed as the fraction of aerosol particles acting as an INP) was strongly dependent on the particle size. For example, at diameters of around 0.2 µm, approximately 1 in 106 particles acted as an INP at −25 ∘C, while at diameters of around 8 µm, approximately 1 in 10 particles acted as an INP at −25 ∘C. The ice-nucleating ability on a per surface-area basis (expressed as the surface active site density, ns) was also dependent on the particle size, with larger particles being more efficient at nucleating ice. The ns values of supermicron particles at Amphitrite Point and Labrador Sea were larger than previously measured ns values of sea spray aerosols, suggesting that sea spray aerosols were not a major contributor to the supermicron INP population at these two sites. Consistent with this observation, a global model of INP concentrations under-predicted the INP concentrations when assuming only marine organics as INPs. On the other hand, assuming only K-feldspar as INPs, the same model was able to reproduce the measurements at a freezing temperature of −25 ∘C, but under-predicted INP concentrations at −15 ∘C, suggesting that the model is missing a source of INPs active at a freezing temperature of −15 ∘C. Article in Journal/Newspaper Arctic Labrador Sea Lancaster Sound Niedersächsisches Online-Archiv NOA Arctic Canada Lancaster Sound ENVELOPE(-83.999,-83.999,74.218,74.218) Atmospheric Chemistry and Physics 18 21 15669 15685 |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Si, Meng Irish, Victoria E. Mason, Ryan H. Vergara-Temprado, Jesús Hanna, Sarah J. Ladino, Luis A. Yakobi-Hancock, Jacqueline D. Schiller, Corinne L. Wentzell, Jeremy J. B. Abbatt, Jonathan P. D. Carslaw, Ken S. Murray, Benjamin J. Bertram, Allan K. Ice-nucleating ability of aerosol particles and possible sources at three coastal marine sites |
topic_facet |
article Verlagsveröffentlichung |
description |
Despite the importance of ice-nucleating particles (INPs) for climate and precipitation, our understanding of these particles is far from complete. Here, we investigated INPs at three coastal marine sites in Canada, two at mid-latitude (Amphitrite Point and Labrador Sea) and one in the Arctic (Lancaster Sound). For Amphitrite Point, 23 sets of samples were analyzed, and for Labrador Sea and Lancaster Sound, one set of samples was analyzed for each location. At all three sites, the ice-nucleating ability on a per number basis (expressed as the fraction of aerosol particles acting as an INP) was strongly dependent on the particle size. For example, at diameters of around 0.2 µm, approximately 1 in 106 particles acted as an INP at −25 ∘C, while at diameters of around 8 µm, approximately 1 in 10 particles acted as an INP at −25 ∘C. The ice-nucleating ability on a per surface-area basis (expressed as the surface active site density, ns) was also dependent on the particle size, with larger particles being more efficient at nucleating ice. The ns values of supermicron particles at Amphitrite Point and Labrador Sea were larger than previously measured ns values of sea spray aerosols, suggesting that sea spray aerosols were not a major contributor to the supermicron INP population at these two sites. Consistent with this observation, a global model of INP concentrations under-predicted the INP concentrations when assuming only marine organics as INPs. On the other hand, assuming only K-feldspar as INPs, the same model was able to reproduce the measurements at a freezing temperature of −25 ∘C, but under-predicted INP concentrations at −15 ∘C, suggesting that the model is missing a source of INPs active at a freezing temperature of −15 ∘C. |
format |
Article in Journal/Newspaper |
author |
Si, Meng Irish, Victoria E. Mason, Ryan H. Vergara-Temprado, Jesús Hanna, Sarah J. Ladino, Luis A. Yakobi-Hancock, Jacqueline D. Schiller, Corinne L. Wentzell, Jeremy J. B. Abbatt, Jonathan P. D. Carslaw, Ken S. Murray, Benjamin J. Bertram, Allan K. |
author_facet |
Si, Meng Irish, Victoria E. Mason, Ryan H. Vergara-Temprado, Jesús Hanna, Sarah J. Ladino, Luis A. Yakobi-Hancock, Jacqueline D. Schiller, Corinne L. Wentzell, Jeremy J. B. Abbatt, Jonathan P. D. Carslaw, Ken S. Murray, Benjamin J. Bertram, Allan K. |
author_sort |
Si, Meng |
title |
Ice-nucleating ability of aerosol particles and possible sources at three coastal marine sites |
title_short |
Ice-nucleating ability of aerosol particles and possible sources at three coastal marine sites |
title_full |
Ice-nucleating ability of aerosol particles and possible sources at three coastal marine sites |
title_fullStr |
Ice-nucleating ability of aerosol particles and possible sources at three coastal marine sites |
title_full_unstemmed |
Ice-nucleating ability of aerosol particles and possible sources at three coastal marine sites |
title_sort |
ice-nucleating ability of aerosol particles and possible sources at three coastal marine sites |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/acp-18-15669-2018 https://noa.gwlb.de/receive/cop_mods_00041396 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00041016/acp-18-15669-2018.pdf https://acp.copernicus.org/articles/18/15669/2018/acp-18-15669-2018.pdf |
long_lat |
ENVELOPE(-83.999,-83.999,74.218,74.218) |
geographic |
Arctic Canada Lancaster Sound |
geographic_facet |
Arctic Canada Lancaster Sound |
genre |
Arctic Labrador Sea Lancaster Sound |
genre_facet |
Arctic Labrador Sea Lancaster Sound |
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-18-15669-2018 https://noa.gwlb.de/receive/cop_mods_00041396 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00041016/acp-18-15669-2018.pdf https://acp.copernicus.org/articles/18/15669/2018/acp-18-15669-2018.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-18-15669-2018 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
18 |
container_issue |
21 |
container_start_page |
15669 |
op_container_end_page |
15685 |
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1766344248233295872 |