Physical and chemical properties of pollution aerosol particles transported from North America to Greenland as measured during the POLARCAT summer campaign
Within the framework of the POLARCAT-France campaign, aerosol physical, chemical and optical properties over Greenland were measured onboard the French ATR-42 research aircraft. The origins of CO excess peaks detected in the aircraft measurements then have been identified through FLEXPART simulation...
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ftdoajarticles:oai:doaj.org/article:d12a97b6e4e9468199e6fdd635a9298c 2023-05-15T16:27:05+02:00 Physical and chemical properties of pollution aerosol particles transported from North America to Greenland as measured during the POLARCAT summer campaign B. Quennehen A. Schwarzenboeck J. Schmale J. Schneider H. Sodemann A. Stohl G. Ancellet S. Crumeyrolle K. S. Law 2011-11-01T00:00:00Z https://doi.org/10.5194/acp-11-10947-2011 https://doaj.org/article/d12a97b6e4e9468199e6fdd635a9298c EN eng Copernicus Publications http://www.atmos-chem-phys.net/11/10947/2011/acp-11-10947-2011.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-11-10947-2011 1680-7316 1680-7324 https://doaj.org/article/d12a97b6e4e9468199e6fdd635a9298c Atmospheric Chemistry and Physics, Vol 11, Iss 21, Pp 10947-10963 (2011) Physics QC1-999 Chemistry QD1-999 article 2011 ftdoajarticles https://doi.org/10.5194/acp-11-10947-2011 2022-12-30T22:54:21Z Within the framework of the POLARCAT-France campaign, aerosol physical, chemical and optical properties over Greenland were measured onboard the French ATR-42 research aircraft. The origins of CO excess peaks detected in the aircraft measurements then have been identified through FLEXPART simulations. The study presented here focuses particularly on the characterization of air masses transported from the North American continent to Greenland. Air masses that picked up emissions from Canadian boreal forest fires as well as from the cities on the American east coast were identified and selected for a detailed study. Measurements of CO concentrations, aerosol chemical composition, aerosol number size distributions, aerosol volume volatile fractions and aerosol light absorption (mainly from black carbon) are used in order to study the relationship between CO enhancement (ΔCO), aerosol particle concentrations and number size distributions. Aerosol number size distributions (normalised with their respective ΔCO) are in good agreement with previous studies. Nonetheless, wet scavenging may have occurred along the pathway between the emission sources and Greenland leading to a less pronounced accumulation mode in the POLARCAT data. Chemical analyses from mass spectrometry show that submicrometer aerosol particles are mainly composed of sulphate and organics. The observed bimodal (Aitken and accumulation) aerosol number size distributions show a significant enhancement in Aitken mode particles. Furthermore, results from the thermodenuder analysis demonstrate the external mixture of boreal fire (BF) air masses from North America (NA). This is particularly observed in the accumulation mode, containing a volume fraction of up to 25–30% of refractory material at the applied temperature of 280 °C. NA anthropogenic air masses with only 6% refractory material in the accumulation mode can be clearly distinguished from BF air masses. Overall, during the campaign rather small amounts of black carbon from the North American ... Article in Journal/Newspaper Greenland Directory of Open Access Journals: DOAJ Articles Aitken ENVELOPE(-44.516,-44.516,-60.733,-60.733) Greenland Atmospheric Chemistry and Physics 11 21 10947 10963 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 B. Quennehen A. Schwarzenboeck J. Schmale J. Schneider H. Sodemann A. Stohl G. Ancellet S. Crumeyrolle K. S. Law Physical and chemical properties of pollution aerosol particles transported from North America to Greenland as measured during the POLARCAT summer campaign |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
Within the framework of the POLARCAT-France campaign, aerosol physical, chemical and optical properties over Greenland were measured onboard the French ATR-42 research aircraft. The origins of CO excess peaks detected in the aircraft measurements then have been identified through FLEXPART simulations. The study presented here focuses particularly on the characterization of air masses transported from the North American continent to Greenland. Air masses that picked up emissions from Canadian boreal forest fires as well as from the cities on the American east coast were identified and selected for a detailed study. Measurements of CO concentrations, aerosol chemical composition, aerosol number size distributions, aerosol volume volatile fractions and aerosol light absorption (mainly from black carbon) are used in order to study the relationship between CO enhancement (ΔCO), aerosol particle concentrations and number size distributions. Aerosol number size distributions (normalised with their respective ΔCO) are in good agreement with previous studies. Nonetheless, wet scavenging may have occurred along the pathway between the emission sources and Greenland leading to a less pronounced accumulation mode in the POLARCAT data. Chemical analyses from mass spectrometry show that submicrometer aerosol particles are mainly composed of sulphate and organics. The observed bimodal (Aitken and accumulation) aerosol number size distributions show a significant enhancement in Aitken mode particles. Furthermore, results from the thermodenuder analysis demonstrate the external mixture of boreal fire (BF) air masses from North America (NA). This is particularly observed in the accumulation mode, containing a volume fraction of up to 25–30% of refractory material at the applied temperature of 280 °C. NA anthropogenic air masses with only 6% refractory material in the accumulation mode can be clearly distinguished from BF air masses. Overall, during the campaign rather small amounts of black carbon from the North American ... |
format |
Article in Journal/Newspaper |
author |
B. Quennehen A. Schwarzenboeck J. Schmale J. Schneider H. Sodemann A. Stohl G. Ancellet S. Crumeyrolle K. S. Law |
author_facet |
B. Quennehen A. Schwarzenboeck J. Schmale J. Schneider H. Sodemann A. Stohl G. Ancellet S. Crumeyrolle K. S. Law |
author_sort |
B. Quennehen |
title |
Physical and chemical properties of pollution aerosol particles transported from North America to Greenland as measured during the POLARCAT summer campaign |
title_short |
Physical and chemical properties of pollution aerosol particles transported from North America to Greenland as measured during the POLARCAT summer campaign |
title_full |
Physical and chemical properties of pollution aerosol particles transported from North America to Greenland as measured during the POLARCAT summer campaign |
title_fullStr |
Physical and chemical properties of pollution aerosol particles transported from North America to Greenland as measured during the POLARCAT summer campaign |
title_full_unstemmed |
Physical and chemical properties of pollution aerosol particles transported from North America to Greenland as measured during the POLARCAT summer campaign |
title_sort |
physical and chemical properties of pollution aerosol particles transported from north america to greenland as measured during the polarcat summer campaign |
publisher |
Copernicus Publications |
publishDate |
2011 |
url |
https://doi.org/10.5194/acp-11-10947-2011 https://doaj.org/article/d12a97b6e4e9468199e6fdd635a9298c |
long_lat |
ENVELOPE(-44.516,-44.516,-60.733,-60.733) |
geographic |
Aitken Greenland |
geographic_facet |
Aitken Greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
Atmospheric Chemistry and Physics, Vol 11, Iss 21, Pp 10947-10963 (2011) |
op_relation |
http://www.atmos-chem-phys.net/11/10947/2011/acp-11-10947-2011.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-11-10947-2011 1680-7316 1680-7324 https://doaj.org/article/d12a97b6e4e9468199e6fdd635a9298c |
op_doi |
https://doi.org/10.5194/acp-11-10947-2011 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
11 |
container_issue |
21 |
container_start_page |
10947 |
op_container_end_page |
10963 |
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1766016143674310656 |