Sources of light-absorbing aerosol in arctic snow and their seasonal variation
Two data sets consisting of measurements of light absorbing aerosols (LAA) in arctic snow together with suites of other corresponding chemical constituents are presented; the first from Siberia, Greenland and near the North Pole obtained in 2008, and the second from the Canadian arctic obtained in 2...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00046925 2023-05-15T14:50:54+02:00 Sources of light-absorbing aerosol in arctic snow and their seasonal variation Hegg, Dean A. Warren, Stephen G. Grenfell, Thomas C. Sarah J Doherty, Clarke, Antony D. 2010-11 electronic https://doi.org/10.5194/acp-10-10923-2010 https://noa.gwlb.de/receive/cop_mods_00046925 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00046545/acp-10-10923-2010.pdf https://acp.copernicus.org/articles/10/10923/2010/acp-10-10923-2010.pdf eng eng Copernicus Publications Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-10-10923-2010 https://noa.gwlb.de/receive/cop_mods_00046925 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00046545/acp-10-10923-2010.pdf https://acp.copernicus.org/articles/10/10923/2010/acp-10-10923-2010.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2010 ftnonlinearchiv https://doi.org/10.5194/acp-10-10923-2010 2022-02-08T22:38:42Z Two data sets consisting of measurements of light absorbing aerosols (LAA) in arctic snow together with suites of other corresponding chemical constituents are presented; the first from Siberia, Greenland and near the North Pole obtained in 2008, and the second from the Canadian arctic obtained in 2009. A preliminary differentiation of the LAA into black carbon (BC) and non-BC LAA is done. Source attribution of the light absorbing aerosols was done using a positive matrix factorization (PMF) model. Four sources were found for each data set (crop and grass burning, boreal biomass burning, pollution and marine). For both data sets, the crops and grass biomass burning was the main source of both LAA species, suggesting the non-BC LAA was brown carbon. Depth profiles at most of the sites allowed assessment of the seasonal variation in the source strengths. The biomass burning sources dominated in the spring but pollution played a more significant (though rarely dominant) role in the fall, winter and, for Greenland, summer. The PMF analysis is consistent with trajectory analysis and satellite fire maps. Article in Journal/Newspaper Arctic black carbon Greenland North Pole Siberia Niedersächsisches Online-Archiv NOA Arctic Greenland North Pole Atmospheric Chemistry and Physics 10 22 10923 10938 |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
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English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Hegg, Dean A. Warren, Stephen G. Grenfell, Thomas C. Sarah J Doherty, Clarke, Antony D. Sources of light-absorbing aerosol in arctic snow and their seasonal variation |
topic_facet |
article Verlagsveröffentlichung |
description |
Two data sets consisting of measurements of light absorbing aerosols (LAA) in arctic snow together with suites of other corresponding chemical constituents are presented; the first from Siberia, Greenland and near the North Pole obtained in 2008, and the second from the Canadian arctic obtained in 2009. A preliminary differentiation of the LAA into black carbon (BC) and non-BC LAA is done. Source attribution of the light absorbing aerosols was done using a positive matrix factorization (PMF) model. Four sources were found for each data set (crop and grass burning, boreal biomass burning, pollution and marine). For both data sets, the crops and grass biomass burning was the main source of both LAA species, suggesting the non-BC LAA was brown carbon. Depth profiles at most of the sites allowed assessment of the seasonal variation in the source strengths. The biomass burning sources dominated in the spring but pollution played a more significant (though rarely dominant) role in the fall, winter and, for Greenland, summer. The PMF analysis is consistent with trajectory analysis and satellite fire maps. |
format |
Article in Journal/Newspaper |
author |
Hegg, Dean A. Warren, Stephen G. Grenfell, Thomas C. Sarah J Doherty, Clarke, Antony D. |
author_facet |
Hegg, Dean A. Warren, Stephen G. Grenfell, Thomas C. Sarah J Doherty, Clarke, Antony D. |
author_sort |
Hegg, Dean A. |
title |
Sources of light-absorbing aerosol in arctic snow and their seasonal variation |
title_short |
Sources of light-absorbing aerosol in arctic snow and their seasonal variation |
title_full |
Sources of light-absorbing aerosol in arctic snow and their seasonal variation |
title_fullStr |
Sources of light-absorbing aerosol in arctic snow and their seasonal variation |
title_full_unstemmed |
Sources of light-absorbing aerosol in arctic snow and their seasonal variation |
title_sort |
sources of light-absorbing aerosol in arctic snow and their seasonal variation |
publisher |
Copernicus Publications |
publishDate |
2010 |
url |
https://doi.org/10.5194/acp-10-10923-2010 https://noa.gwlb.de/receive/cop_mods_00046925 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00046545/acp-10-10923-2010.pdf https://acp.copernicus.org/articles/10/10923/2010/acp-10-10923-2010.pdf |
geographic |
Arctic Greenland North Pole |
geographic_facet |
Arctic Greenland North Pole |
genre |
Arctic black carbon Greenland North Pole Siberia |
genre_facet |
Arctic black carbon Greenland North Pole Siberia |
op_relation |
Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-10-10923-2010 https://noa.gwlb.de/receive/cop_mods_00046925 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00046545/acp-10-10923-2010.pdf https://acp.copernicus.org/articles/10/10923/2010/acp-10-10923-2010.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/acp-10-10923-2010 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
10 |
container_issue |
22 |
container_start_page |
10923 |
op_container_end_page |
10938 |
_version_ |
1766321963761926144 |