Growth of nucleation mode particles in the summertime Arctic: a case study
The summertime Arctic lower troposphere is a relatively pristine background aerosol environment dominated by nucleation and Aitken mode particles. Understanding the mechanisms that control the formation and growth of aerosol is crucial for our ability to predict cloud properties and therefore radiat...
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ftpubman:oai:pure.mpg.de:item_2403517 2024-09-15T17:52:12+00:00 Growth of nucleation mode particles in the summertime Arctic: a case study Willis, M. Burkart, J. Thomas, J. Köllner, F. Schneider, J. Bozem, H. Hoor, P. Aliabadi, A. Schulz, H. Herber, A. Leaitch, W. Abbatt, J. 2016 http://hdl.handle.net/11858/00-001M-0000-002C-8D00-F unknown info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-2016-256 http://hdl.handle.net/11858/00-001M-0000-002C-8D00-F Atmospheric Chemistry and Physics Discussions info:eu-repo/semantics/workingPaper 2016 ftpubman https://doi.org/10.5194/acp-2016-256 2024-07-31T09:31:29Z The summertime Arctic lower troposphere is a relatively pristine background aerosol environment dominated by nucleation and Aitken mode particles. Understanding the mechanisms that control the formation and growth of aerosol is crucial for our ability to predict cloud properties and therefore radiative balance and climate. We present an analysis of an aerosol growth event observed in the Canadian Arctic Archipelago during summer as part of the NETCARE project. Under stable and clean atmospheric conditions, with low inversion heights, carbon monoxide less than 80aEuro-ppb(v), and black carbon less than 5aEuro-ngaEuro-m(-3), we observe growth of small particles, < aEuro-20aEuro-nm in diameter, into sizes above 50aEuro-nm. Aerosol growth was correlated with the presence of organic species, trimethylamine, and methanesulfonic acid (MSA) in particles similar to aEuro-80aEuro-nm and larger, where the organics are similar to those previously observed in marine settings. MSA-to-sulfate ratios as high as 0.15 were observed during aerosol growth, suggesting an important marine influence. The organic-rich aerosol contributes significantly to particles active as cloud condensation nuclei (CCN, supersaturationaEuro- = aEuro-0.6aEuro-%), which are elevated in concentration during aerosol growth above background levels of similar to 100 to similar to 220aEuro-cm(-3). Results from this case study highlight the potential importance of secondary organic aerosol formation and its role in growing nucleation mode aerosol into CCN-active sizes in this remote marine environment. Report Arctic Archipelago black carbon Canadian Arctic Archipelago Max Planck Society: MPG.PuRe |
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Max Planck Society: MPG.PuRe |
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The summertime Arctic lower troposphere is a relatively pristine background aerosol environment dominated by nucleation and Aitken mode particles. Understanding the mechanisms that control the formation and growth of aerosol is crucial for our ability to predict cloud properties and therefore radiative balance and climate. We present an analysis of an aerosol growth event observed in the Canadian Arctic Archipelago during summer as part of the NETCARE project. Under stable and clean atmospheric conditions, with low inversion heights, carbon monoxide less than 80aEuro-ppb(v), and black carbon less than 5aEuro-ngaEuro-m(-3), we observe growth of small particles, < aEuro-20aEuro-nm in diameter, into sizes above 50aEuro-nm. Aerosol growth was correlated with the presence of organic species, trimethylamine, and methanesulfonic acid (MSA) in particles similar to aEuro-80aEuro-nm and larger, where the organics are similar to those previously observed in marine settings. MSA-to-sulfate ratios as high as 0.15 were observed during aerosol growth, suggesting an important marine influence. The organic-rich aerosol contributes significantly to particles active as cloud condensation nuclei (CCN, supersaturationaEuro- = aEuro-0.6aEuro-%), which are elevated in concentration during aerosol growth above background levels of similar to 100 to similar to 220aEuro-cm(-3). Results from this case study highlight the potential importance of secondary organic aerosol formation and its role in growing nucleation mode aerosol into CCN-active sizes in this remote marine environment. |
format |
Report |
author |
Willis, M. Burkart, J. Thomas, J. Köllner, F. Schneider, J. Bozem, H. Hoor, P. Aliabadi, A. Schulz, H. Herber, A. Leaitch, W. Abbatt, J. |
spellingShingle |
Willis, M. Burkart, J. Thomas, J. Köllner, F. Schneider, J. Bozem, H. Hoor, P. Aliabadi, A. Schulz, H. Herber, A. Leaitch, W. Abbatt, J. Growth of nucleation mode particles in the summertime Arctic: a case study |
author_facet |
Willis, M. Burkart, J. Thomas, J. Köllner, F. Schneider, J. Bozem, H. Hoor, P. Aliabadi, A. Schulz, H. Herber, A. Leaitch, W. Abbatt, J. |
author_sort |
Willis, M. |
title |
Growth of nucleation mode particles in the summertime Arctic: a case study |
title_short |
Growth of nucleation mode particles in the summertime Arctic: a case study |
title_full |
Growth of nucleation mode particles in the summertime Arctic: a case study |
title_fullStr |
Growth of nucleation mode particles in the summertime Arctic: a case study |
title_full_unstemmed |
Growth of nucleation mode particles in the summertime Arctic: a case study |
title_sort |
growth of nucleation mode particles in the summertime arctic: a case study |
publishDate |
2016 |
url |
http://hdl.handle.net/11858/00-001M-0000-002C-8D00-F |
genre |
Arctic Archipelago black carbon Canadian Arctic Archipelago |
genre_facet |
Arctic Archipelago black carbon Canadian Arctic Archipelago |
op_source |
Atmospheric Chemistry and Physics Discussions |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-2016-256 http://hdl.handle.net/11858/00-001M-0000-002C-8D00-F |
op_doi |
https://doi.org/10.5194/acp-2016-256 |
_version_ |
1810294274463367168 |