Observations of Extreme Wildfire Enhancements of CH3OH, HCOOH, and PAN over the Canadian High Arctic
Wildfires are a common occurrence in many parts of the globe and can emit significant quantities of trace gases and particulate matter, negatively impacting air quality on large spatial scales. Among the various trace gases emitted by wildfires are volatile organic compounds (VOCs). Three VOCs that...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/335749 2023-05-15T14:51:53+02:00 Observations of Extreme Wildfire Enhancements of CH3OH, HCOOH, and PAN over the Canadian High Arctic Wizenberg, Tyler Strong, Kimberly Jones, Dylan B A Lutsch, Erik Mahieu, Emmanuel Franco, Bruno Clarisse, Lieven 16th IGAC Scientific Conference (12-17 September 2021: Manchester, UK) 2021-09-17 No full-text files http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/335749 en eng http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/335749 Sciences exactes et naturelles info:eu-repo/semantics/conferenceContribution info:ulb-repo/semantics/conferenceContribution info:ulb-repo/semantics/openurl/document 2021 ftunivbruxelles 2022-06-12T22:08:07Z Wildfires are a common occurrence in many parts of the globe and can emit significant quantities of trace gases and particulate matter, negatively impacting air quality on large spatial scales. Among the various trace gases emitted by wildfires are volatile organic compounds (VOCs). Three VOCs that are of particular importance are methanol (CH3OH), formic acid (HCOOH), and peroxyacetyl nitrate (PAN). CH3OH is the one of the most abundant VOCs in the atmosphere, and it influences the budgets of many tropospheric species including the hydroxyl radical, carbon monoxide, formaldehyde, and ozone. HCOOH is the most abundant tropospheric carboxylic acid, and thus can have significant impacts on atmospheric acidity, particularly in remote regions such as the Arctic. Lastly, PAN is a key, thermally unstable reservoir species of tropospheric nitrogen radicals (NOx = NO + NO2), controlling the production of tropospheric ozone, and contributing to the ‘Arctic haze’ pollution phenomenon at high latitudes.During August 2017, two independent large-scale wildfires in British Columbia and the Northwest Territories of Canada generated vast smoke plumes that merged and were subsequently transported to the high Arctic. Simultaneous observations by a high-resolution ground-based Fourier transform infrared (FTIR) spectrometer at the Polar Environment Research Laboratory (PEARL) in Eureka, Nunavut (80.05°N, 86.42°W), and the Infrared Atmospheric Sounding Interferometer (IASI) satellite instruments display extreme enhancements in these three species relative to background concentrations during the fire-affected period in late August 2017, demonstrating the long-range transport and secondary formation of these typically short-lived species. Initial results of the analysis of this unique biomass burning event will be presented, including comparisons of observations with the GEOS-Chem global chemical transport model. info:eu-repo/semantics/nonPublished Conference Object Arctic Eureka Northwest Territories Nunavut DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) Arctic British Columbia ENVELOPE(-125.003,-125.003,54.000,54.000) Canada Eureka ENVELOPE(-85.940,-85.940,79.990,79.990) Northwest Territories Nunavut |
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Open Polar |
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DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Sciences exactes et naturelles |
spellingShingle |
Sciences exactes et naturelles Wizenberg, Tyler Strong, Kimberly Jones, Dylan B A Lutsch, Erik Mahieu, Emmanuel Franco, Bruno Clarisse, Lieven Observations of Extreme Wildfire Enhancements of CH3OH, HCOOH, and PAN over the Canadian High Arctic |
topic_facet |
Sciences exactes et naturelles |
description |
Wildfires are a common occurrence in many parts of the globe and can emit significant quantities of trace gases and particulate matter, negatively impacting air quality on large spatial scales. Among the various trace gases emitted by wildfires are volatile organic compounds (VOCs). Three VOCs that are of particular importance are methanol (CH3OH), formic acid (HCOOH), and peroxyacetyl nitrate (PAN). CH3OH is the one of the most abundant VOCs in the atmosphere, and it influences the budgets of many tropospheric species including the hydroxyl radical, carbon monoxide, formaldehyde, and ozone. HCOOH is the most abundant tropospheric carboxylic acid, and thus can have significant impacts on atmospheric acidity, particularly in remote regions such as the Arctic. Lastly, PAN is a key, thermally unstable reservoir species of tropospheric nitrogen radicals (NOx = NO + NO2), controlling the production of tropospheric ozone, and contributing to the ‘Arctic haze’ pollution phenomenon at high latitudes.During August 2017, two independent large-scale wildfires in British Columbia and the Northwest Territories of Canada generated vast smoke plumes that merged and were subsequently transported to the high Arctic. Simultaneous observations by a high-resolution ground-based Fourier transform infrared (FTIR) spectrometer at the Polar Environment Research Laboratory (PEARL) in Eureka, Nunavut (80.05°N, 86.42°W), and the Infrared Atmospheric Sounding Interferometer (IASI) satellite instruments display extreme enhancements in these three species relative to background concentrations during the fire-affected period in late August 2017, demonstrating the long-range transport and secondary formation of these typically short-lived species. Initial results of the analysis of this unique biomass burning event will be presented, including comparisons of observations with the GEOS-Chem global chemical transport model. info:eu-repo/semantics/nonPublished |
author2 |
16th IGAC Scientific Conference (12-17 September 2021: Manchester, UK) |
format |
Conference Object |
author |
Wizenberg, Tyler Strong, Kimberly Jones, Dylan B A Lutsch, Erik Mahieu, Emmanuel Franco, Bruno Clarisse, Lieven |
author_facet |
Wizenberg, Tyler Strong, Kimberly Jones, Dylan B A Lutsch, Erik Mahieu, Emmanuel Franco, Bruno Clarisse, Lieven |
author_sort |
Wizenberg, Tyler |
title |
Observations of Extreme Wildfire Enhancements of CH3OH, HCOOH, and PAN over the Canadian High Arctic |
title_short |
Observations of Extreme Wildfire Enhancements of CH3OH, HCOOH, and PAN over the Canadian High Arctic |
title_full |
Observations of Extreme Wildfire Enhancements of CH3OH, HCOOH, and PAN over the Canadian High Arctic |
title_fullStr |
Observations of Extreme Wildfire Enhancements of CH3OH, HCOOH, and PAN over the Canadian High Arctic |
title_full_unstemmed |
Observations of Extreme Wildfire Enhancements of CH3OH, HCOOH, and PAN over the Canadian High Arctic |
title_sort |
observations of extreme wildfire enhancements of ch3oh, hcooh, and pan over the canadian high arctic |
publishDate |
2021 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/335749 |
long_lat |
ENVELOPE(-125.003,-125.003,54.000,54.000) ENVELOPE(-85.940,-85.940,79.990,79.990) |
geographic |
Arctic British Columbia Canada Eureka Northwest Territories Nunavut |
geographic_facet |
Arctic British Columbia Canada Eureka Northwest Territories Nunavut |
genre |
Arctic Eureka Northwest Territories Nunavut |
genre_facet |
Arctic Eureka Northwest Territories Nunavut |
op_relation |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/335749 |
_version_ |
1766323022117994496 |