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Regions of open water and melting sea ice drive new particle formation in North East Greenland
Atmospheric new particle formation (NPF) and growth significantly influences the indirect aerosol-cloud effect within the polar climate system. In this work, the aerosol population is categorised via cluster analysis of aerosol number size distributions (9–915 nm, 65 bins) taken at Villum Research S...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Nature Publishing Group UK
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5904185/ https://www.ncbi.nlm.nih.gov/pubmed/29666448 http://dx.doi.org/10.1038/s41598-018-24426-8 |
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author | Dall´Osto, M. Geels, C. Beddows, D. C. S. Boertmann, D. Lange, R. Nøjgaard, J. K. Harrison, Roy. M. Simo, R. Skov, H. Massling, A. |
author_facet | Dall´Osto, M. Geels, C. Beddows, D. C. S. Boertmann, D. Lange, R. Nøjgaard, J. K. Harrison, Roy. M. Simo, R. Skov, H. Massling, A. |
author_sort | Dall´Osto, M. |
collection | PubMed |
description | Atmospheric new particle formation (NPF) and growth significantly influences the indirect aerosol-cloud effect within the polar climate system. In this work, the aerosol population is categorised via cluster analysis of aerosol number size distributions (9–915 nm, 65 bins) taken at Villum Research Station, Station Nord (VRS) in North Greenland during a 7 year record (2010–2016). Data are clustered at daily averaged resolution; in total, we classified six categories, five of which clearly describe the ultrafine aerosol population, one of which is linked to nucleation events (up to 39% during summer). Air mass trajectory analyses tie these frequent nucleation events to biogenic precursors released by open water and melting sea ice regions. NPF events in the studied regions seem not to be related to bird colonies from coastal zones. Our results show a negative correlation (r = −0.89) between NPF events and sea ice extent, suggesting the impact of ultrafine Arctic aerosols is likely to increase in the future, given the likely increased sea ice melting. Understanding the composition and the sources of Arctic aerosols requires further integrated studies with joint multi-component ocean-atmosphere observation and modelling. |
format | Online Article Text |
id | pubmed-5904185 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-59041852018-04-30 Regions of open water and melting sea ice drive new particle formation in North East Greenland Dall´Osto, M. Geels, C. Beddows, D. C. S. Boertmann, D. Lange, R. Nøjgaard, J. K. Harrison, Roy. M. Simo, R. Skov, H. Massling, A. Sci Rep Article Atmospheric new particle formation (NPF) and growth significantly influences the indirect aerosol-cloud effect within the polar climate system. In this work, the aerosol population is categorised via cluster analysis of aerosol number size distributions (9–915 nm, 65 bins) taken at Villum Research Station, Station Nord (VRS) in North Greenland during a 7 year record (2010–2016). Data are clustered at daily averaged resolution; in total, we classified six categories, five of which clearly describe the ultrafine aerosol population, one of which is linked to nucleation events (up to 39% during summer). Air mass trajectory analyses tie these frequent nucleation events to biogenic precursors released by open water and melting sea ice regions. NPF events in the studied regions seem not to be related to bird colonies from coastal zones. Our results show a negative correlation (r = −0.89) between NPF events and sea ice extent, suggesting the impact of ultrafine Arctic aerosols is likely to increase in the future, given the likely increased sea ice melting. Understanding the composition and the sources of Arctic aerosols requires further integrated studies with joint multi-component ocean-atmosphere observation and modelling. Nature Publishing Group UK 2018-04-17 /pmc/articles/PMC5904185/ /pubmed/29666448 http://dx.doi.org/10.1038/s41598-018-24426-8 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Dall´Osto, M. Geels, C. Beddows, D. C. S. Boertmann, D. Lange, R. Nøjgaard, J. K. Harrison, Roy. M. Simo, R. Skov, H. Massling, A. Regions of open water and melting sea ice drive new particle formation in North East Greenland |
title | Regions of open water and melting sea ice drive new particle formation in North East Greenland |
title_full | Regions of open water and melting sea ice drive new particle formation in North East Greenland |
title_fullStr | Regions of open water and melting sea ice drive new particle formation in North East Greenland |
title_full_unstemmed | Regions of open water and melting sea ice drive new particle formation in North East Greenland |
title_short | Regions of open water and melting sea ice drive new particle formation in North East Greenland |
title_sort | regions of open water and melting sea ice drive new particle formation in north east greenland |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5904185/ https://www.ncbi.nlm.nih.gov/pubmed/29666448 http://dx.doi.org/10.1038/s41598-018-24426-8 |
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