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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ftdoajarticles:oai:doaj.org/article:d3f182396eb3499faf6965800a07ede6 2023-05-15T14:28:53+02:00 Growth of nucleation mode particles in the summertime Arctic: a case study M. D. Willis J. Burkart J. L. Thomas F. Köllner J. Schneider H. Bozem P. M. Hoor A. A. Aliabadi H. Schulz A. B. Herber W. R. Leaitch J. P. D. Abbatt 2016-06-01T00:00:00Z https://doi.org/10.5194/acp-16-7663-2016 https://doaj.org/article/d3f182396eb3499faf6965800a07ede6 EN eng Copernicus Publications https://www.atmos-chem-phys.net/16/7663/2016/acp-16-7663-2016.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-16-7663-2016 1680-7316 1680-7324 https://doaj.org/article/d3f182396eb3499faf6965800a07ede6 Atmospheric Chemistry and Physics, Vol 16, Pp 7663-7679 (2016) Physics QC1-999 Chemistry QD1-999 article 2016 ftdoajarticles https://doi.org/10.5194/acp-16-7663-2016 2022-12-31T14:17:17Z 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 80 ppb v , and black carbon less than 5 ng m −3 , we observe growth of small particles, < 20 nm in diameter, into sizes above 50 nm. Aerosol growth was correlated with the presence of organic species, trimethylamine, and methanesulfonic acid (MSA) in particles ∼ 80 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, supersaturation = 0.6 %), which are elevated in concentration during aerosol growth above background levels of ∼ 100 to ∼ 220 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. Article in Journal/Newspaper Arctic Archipelago Arctic black carbon Canadian Arctic Archipelago Directory of Open Access Journals: DOAJ Articles Arctic Canadian Arctic Archipelago Aitken ENVELOPE(-44.516,-44.516,-60.733,-60.733) Atmospheric Chemistry and Physics 16 12 7663 7679 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 M. D. Willis J. Burkart J. L. Thomas F. Köllner J. Schneider H. Bozem P. M. Hoor A. A. Aliabadi H. Schulz A. B. Herber W. R. Leaitch J. P. D. Abbatt Growth of nucleation mode particles in the summertime Arctic: a case study |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
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 80 ppb v , and black carbon less than 5 ng m −3 , we observe growth of small particles, < 20 nm in diameter, into sizes above 50 nm. Aerosol growth was correlated with the presence of organic species, trimethylamine, and methanesulfonic acid (MSA) in particles ∼ 80 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, supersaturation = 0.6 %), which are elevated in concentration during aerosol growth above background levels of ∼ 100 to ∼ 220 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 |
Article in Journal/Newspaper |
author |
M. D. Willis J. Burkart J. L. Thomas F. Köllner J. Schneider H. Bozem P. M. Hoor A. A. Aliabadi H. Schulz A. B. Herber W. R. Leaitch J. P. D. Abbatt |
author_facet |
M. D. Willis J. Burkart J. L. Thomas F. Köllner J. Schneider H. Bozem P. M. Hoor A. A. Aliabadi H. Schulz A. B. Herber W. R. Leaitch J. P. D. Abbatt |
author_sort |
M. D. Willis |
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 |
publisher |
Copernicus Publications |
publishDate |
2016 |
url |
https://doi.org/10.5194/acp-16-7663-2016 https://doaj.org/article/d3f182396eb3499faf6965800a07ede6 |
long_lat |
ENVELOPE(-44.516,-44.516,-60.733,-60.733) |
geographic |
Arctic Canadian Arctic Archipelago Aitken |
geographic_facet |
Arctic Canadian Arctic Archipelago Aitken |
genre |
Arctic Archipelago Arctic black carbon Canadian Arctic Archipelago |
genre_facet |
Arctic Archipelago Arctic black carbon Canadian Arctic Archipelago |
op_source |
Atmospheric Chemistry and Physics, Vol 16, Pp 7663-7679 (2016) |
op_relation |
https://www.atmos-chem-phys.net/16/7663/2016/acp-16-7663-2016.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-16-7663-2016 1680-7316 1680-7324 https://doaj.org/article/d3f182396eb3499faf6965800a07ede6 |
op_doi |
https://doi.org/10.5194/acp-16-7663-2016 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
16 |
container_issue |
12 |
container_start_page |
7663 |
op_container_end_page |
7679 |
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1766303027603439616 |