Characterising aerosol transport into the Canadian High Arctic using aerosol mass spectrometry and Lagrangian modelling
We report the analysis of measurements made using an aerosol mass spectrometer (AMS; Aerodyne Research Inc.) that was installed in the Polar Environment Atmospheric Research Laboratory (PEARL) in summer 2006. PEARL is located in the Canadian high Arctic at 610 m above sea level on Ellesmere Island (...
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ftdoajarticles:oai:doaj.org/article:7d1503a9343349d6a82c858f57dcc7bc 2023-05-15T14:51:15+02:00 Characterising aerosol transport into the Canadian High Arctic using aerosol mass spectrometry and Lagrangian modelling T. Kuhn R. Damoah A. Bacak J. J. Sloan 2010-11-01T00:00:00Z https://doi.org/10.5194/acp-10-10489-2010 https://doaj.org/article/7d1503a9343349d6a82c858f57dcc7bc EN eng Copernicus Publications http://www.atmos-chem-phys.net/10/10489/2010/acp-10-10489-2010.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-10-10489-2010 1680-7316 1680-7324 https://doaj.org/article/7d1503a9343349d6a82c858f57dcc7bc Atmospheric Chemistry and Physics, Vol 10, Iss 21, Pp 10489-10502 (2010) Physics QC1-999 Chemistry QD1-999 article 2010 ftdoajarticles https://doi.org/10.5194/acp-10-10489-2010 2022-12-31T08:20:18Z We report the analysis of measurements made using an aerosol mass spectrometer (AMS; Aerodyne Research Inc.) that was installed in the Polar Environment Atmospheric Research Laboratory (PEARL) in summer 2006. PEARL is located in the Canadian high Arctic at 610 m above sea level on Ellesmere Island (80° N 86° W). PEARL is unique for its remote location in the Arctic and because most of the time it is situated within the free troposphere. It is, therefore, well suited as a receptor site to study the long-range tropospheric transport of pollutants into the Arctic. Some information about the successful year-round operation of an AMS at a high Arctic site such as PEARL will be reported here, together with design considerations for reliable sampling under harsh low-temperature conditions. Computational fluid dynamics calculations were made to ensure that sample integrity was maintained while sampling air at temperatures that average −40 °C in the winter and can be as low as −55 °C. Selected AMS measurements of aerosol mass concentration, size and chemical composition recorded during the months of August, September and October 2006 will be reported. The air temperature was raised to about 20 °C during sampling, but the short residence time in the inlet system (~25 s) ensured that less than 10% of semivolatiles such as ammonium nitrate were lost. During this period, sulfate was, at most times, the predominant aerosol component with on average 0.115 μg m −3 (detection limit 0.003 μg m −3 ). The second most abundant component was undifferentiated organic aerosol, with on average 0.11 μg m −3 (detection limit 0.04 μg m −3 ). The nitrate component, which averaged 0.007 μg m −3 , was above its detection limit (0.002 μg m −3 ), whereas the ammonium ion had an apparent average concentration of 0.02 μg m −3 , which was approximately equal to its detection limit. A few episodes, having increased mass concentrations and lasting from several hours to several days, are apparent in the data. These were investigated further using a ... Article in Journal/Newspaper Arctic Ellesmere Island Directory of Open Access Journals: DOAJ Articles Arctic Ellesmere Island Atmospheric Chemistry and Physics 10 21 10489 10502 |
institution |
Open Polar |
collection |
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 T. Kuhn R. Damoah A. Bacak J. J. Sloan Characterising aerosol transport into the Canadian High Arctic using aerosol mass spectrometry and Lagrangian modelling |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
We report the analysis of measurements made using an aerosol mass spectrometer (AMS; Aerodyne Research Inc.) that was installed in the Polar Environment Atmospheric Research Laboratory (PEARL) in summer 2006. PEARL is located in the Canadian high Arctic at 610 m above sea level on Ellesmere Island (80° N 86° W). PEARL is unique for its remote location in the Arctic and because most of the time it is situated within the free troposphere. It is, therefore, well suited as a receptor site to study the long-range tropospheric transport of pollutants into the Arctic. Some information about the successful year-round operation of an AMS at a high Arctic site such as PEARL will be reported here, together with design considerations for reliable sampling under harsh low-temperature conditions. Computational fluid dynamics calculations were made to ensure that sample integrity was maintained while sampling air at temperatures that average −40 °C in the winter and can be as low as −55 °C. Selected AMS measurements of aerosol mass concentration, size and chemical composition recorded during the months of August, September and October 2006 will be reported. The air temperature was raised to about 20 °C during sampling, but the short residence time in the inlet system (~25 s) ensured that less than 10% of semivolatiles such as ammonium nitrate were lost. During this period, sulfate was, at most times, the predominant aerosol component with on average 0.115 μg m −3 (detection limit 0.003 μg m −3 ). The second most abundant component was undifferentiated organic aerosol, with on average 0.11 μg m −3 (detection limit 0.04 μg m −3 ). The nitrate component, which averaged 0.007 μg m −3 , was above its detection limit (0.002 μg m −3 ), whereas the ammonium ion had an apparent average concentration of 0.02 μg m −3 , which was approximately equal to its detection limit. A few episodes, having increased mass concentrations and lasting from several hours to several days, are apparent in the data. These were investigated further using a ... |
format |
Article in Journal/Newspaper |
author |
T. Kuhn R. Damoah A. Bacak J. J. Sloan |
author_facet |
T. Kuhn R. Damoah A. Bacak J. J. Sloan |
author_sort |
T. Kuhn |
title |
Characterising aerosol transport into the Canadian High Arctic using aerosol mass spectrometry and Lagrangian modelling |
title_short |
Characterising aerosol transport into the Canadian High Arctic using aerosol mass spectrometry and Lagrangian modelling |
title_full |
Characterising aerosol transport into the Canadian High Arctic using aerosol mass spectrometry and Lagrangian modelling |
title_fullStr |
Characterising aerosol transport into the Canadian High Arctic using aerosol mass spectrometry and Lagrangian modelling |
title_full_unstemmed |
Characterising aerosol transport into the Canadian High Arctic using aerosol mass spectrometry and Lagrangian modelling |
title_sort |
characterising aerosol transport into the canadian high arctic using aerosol mass spectrometry and lagrangian modelling |
publisher |
Copernicus Publications |
publishDate |
2010 |
url |
https://doi.org/10.5194/acp-10-10489-2010 https://doaj.org/article/7d1503a9343349d6a82c858f57dcc7bc |
geographic |
Arctic Ellesmere Island |
geographic_facet |
Arctic Ellesmere Island |
genre |
Arctic Ellesmere Island |
genre_facet |
Arctic Ellesmere Island |
op_source |
Atmospheric Chemistry and Physics, Vol 10, Iss 21, Pp 10489-10502 (2010) |
op_relation |
http://www.atmos-chem-phys.net/10/10489/2010/acp-10-10489-2010.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-10-10489-2010 1680-7316 1680-7324 https://doaj.org/article/7d1503a9343349d6a82c858f57dcc7bc |
op_doi |
https://doi.org/10.5194/acp-10-10489-2010 |
container_title |
Atmospheric Chemistry and Physics |
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10 |
container_issue |
21 |
container_start_page |
10489 |
op_container_end_page |
10502 |
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