Frequent ultrafine particle formation and growth in Canadian Arctic marine and coastal environments
The source strength and capability of aerosol particles in the Arctic to act as cloud condensation nuclei have important implications for understanding the indirect aerosol–cloud effect within the polar climate system. It has been shown in several Arctic regions that ultrafine particle (UFP) formati...
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ftcopernicus:oai:publications.copernicus.org:acp58740 2023-05-15T14:46:06+02:00 Frequent ultrafine particle formation and growth in Canadian Arctic marine and coastal environments Collins, Douglas B. Burkart, Julia Chang, Rachel Y.-W. Lizotte, Martine Boivin-Rioux, Aude Blais, Marjolaine Mungall, Emma L. Boyer, Matthew Irish, Victoria E. Massé, Guillaume Kunkel, Daniel Tremblay, Jean-Éric Papakyriakou, Tim Bertram, Allan K. Bozem, Heiko Gosselin, Michel Levasseur, Maurice Abbatt, Jonathan P. D. 2018-09-14 application/pdf https://doi.org/10.5194/acp-17-13119-2017 https://www.atmos-chem-phys.net/17/13119/2017/ eng eng doi:10.5194/acp-17-13119-2017 https://www.atmos-chem-phys.net/17/13119/2017/ eISSN: 1680-7324 Text 2018 ftcopernicus https://doi.org/10.5194/acp-17-13119-2017 2019-12-24T09:50:54Z The source strength and capability of aerosol particles in the Arctic to act as cloud condensation nuclei have important implications for understanding the indirect aerosol–cloud effect within the polar climate system. It has been shown in several Arctic regions that ultrafine particle (UFP) formation and growth is a key contributor to aerosol number concentrations during the summer. This study uses aerosol number size distribution measurements from shipboard expeditions aboard the research icebreaker CCGS Amundsen in the summers of 2014 and 2016 throughout the Canadian Arctic to gain a deeper understanding of the drivers of UFP formation and growth within this marine boundary layer. UFP number concentrations (diameter > 4 nm) in the range of 10 1 –10 4 cm −3 were observed during the two seasons, with concentrations greater than 10 3 cm −3 occurring more frequently in 2016. Higher concentrations in 2016 were associated with UFP formation and growth, with events occurring on 41 % of days, while events were only observed on 6 % of days in 2014. Assessment of relevant parameters for aerosol nucleation showed that the median condensation sink in this region was approximately 1.2 h −1 in 2016 and 2.2 h −1 in 2014, which lie at the lower end of ranges observed at even the most remote stations reported in the literature. Apparent growth rates of all observed events in both expeditions averaged 4.3 ± 4.1 nm h −1 , in general agreement with other recent studies at similar latitudes. Higher solar radiation, lower cloud fractions, and lower sea ice concentrations combined with differences in the developmental stage and activity of marine microbial communities within the Canadian Arctic were documented and help explain differences between the aerosol measurements made during the 2014 and 2016 expeditions. These findings help to motivate further studies of biosphere–atmosphere interactions within the Arctic marine environment to explain the production of UFP and their growth to sizes relevant for cloud droplet activation. Text Arctic Sea ice Copernicus Publications: E-Journals Arctic Atmospheric Chemistry and Physics 17 21 13119 13138 |
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Open Polar |
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Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
The source strength and capability of aerosol particles in the Arctic to act as cloud condensation nuclei have important implications for understanding the indirect aerosol–cloud effect within the polar climate system. It has been shown in several Arctic regions that ultrafine particle (UFP) formation and growth is a key contributor to aerosol number concentrations during the summer. This study uses aerosol number size distribution measurements from shipboard expeditions aboard the research icebreaker CCGS Amundsen in the summers of 2014 and 2016 throughout the Canadian Arctic to gain a deeper understanding of the drivers of UFP formation and growth within this marine boundary layer. UFP number concentrations (diameter > 4 nm) in the range of 10 1 –10 4 cm −3 were observed during the two seasons, with concentrations greater than 10 3 cm −3 occurring more frequently in 2016. Higher concentrations in 2016 were associated with UFP formation and growth, with events occurring on 41 % of days, while events were only observed on 6 % of days in 2014. Assessment of relevant parameters for aerosol nucleation showed that the median condensation sink in this region was approximately 1.2 h −1 in 2016 and 2.2 h −1 in 2014, which lie at the lower end of ranges observed at even the most remote stations reported in the literature. Apparent growth rates of all observed events in both expeditions averaged 4.3 ± 4.1 nm h −1 , in general agreement with other recent studies at similar latitudes. Higher solar radiation, lower cloud fractions, and lower sea ice concentrations combined with differences in the developmental stage and activity of marine microbial communities within the Canadian Arctic were documented and help explain differences between the aerosol measurements made during the 2014 and 2016 expeditions. These findings help to motivate further studies of biosphere–atmosphere interactions within the Arctic marine environment to explain the production of UFP and their growth to sizes relevant for cloud droplet activation. |
format |
Text |
author |
Collins, Douglas B. Burkart, Julia Chang, Rachel Y.-W. Lizotte, Martine Boivin-Rioux, Aude Blais, Marjolaine Mungall, Emma L. Boyer, Matthew Irish, Victoria E. Massé, Guillaume Kunkel, Daniel Tremblay, Jean-Éric Papakyriakou, Tim Bertram, Allan K. Bozem, Heiko Gosselin, Michel Levasseur, Maurice Abbatt, Jonathan P. D. |
spellingShingle |
Collins, Douglas B. Burkart, Julia Chang, Rachel Y.-W. Lizotte, Martine Boivin-Rioux, Aude Blais, Marjolaine Mungall, Emma L. Boyer, Matthew Irish, Victoria E. Massé, Guillaume Kunkel, Daniel Tremblay, Jean-Éric Papakyriakou, Tim Bertram, Allan K. Bozem, Heiko Gosselin, Michel Levasseur, Maurice Abbatt, Jonathan P. D. Frequent ultrafine particle formation and growth in Canadian Arctic marine and coastal environments |
author_facet |
Collins, Douglas B. Burkart, Julia Chang, Rachel Y.-W. Lizotte, Martine Boivin-Rioux, Aude Blais, Marjolaine Mungall, Emma L. Boyer, Matthew Irish, Victoria E. Massé, Guillaume Kunkel, Daniel Tremblay, Jean-Éric Papakyriakou, Tim Bertram, Allan K. Bozem, Heiko Gosselin, Michel Levasseur, Maurice Abbatt, Jonathan P. D. |
author_sort |
Collins, Douglas B. |
title |
Frequent ultrafine particle formation and growth in Canadian Arctic marine and coastal environments |
title_short |
Frequent ultrafine particle formation and growth in Canadian Arctic marine and coastal environments |
title_full |
Frequent ultrafine particle formation and growth in Canadian Arctic marine and coastal environments |
title_fullStr |
Frequent ultrafine particle formation and growth in Canadian Arctic marine and coastal environments |
title_full_unstemmed |
Frequent ultrafine particle formation and growth in Canadian Arctic marine and coastal environments |
title_sort |
frequent ultrafine particle formation and growth in canadian arctic marine and coastal environments |
publishDate |
2018 |
url |
https://doi.org/10.5194/acp-17-13119-2017 https://www.atmos-chem-phys.net/17/13119/2017/ |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_source |
eISSN: 1680-7324 |
op_relation |
doi:10.5194/acp-17-13119-2017 https://www.atmos-chem-phys.net/17/13119/2017/ |
op_doi |
https://doi.org/10.5194/acp-17-13119-2017 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
17 |
container_issue |
21 |
container_start_page |
13119 |
op_container_end_page |
13138 |
_version_ |
1766317363915915264 |