Detection and attribution of wildfire pollution in the Arctic and northern midlatitudes using a network of Fourier-transform infrared spectrometers and GEOS-Chem
We present a multiyear time series of column abundances of carbon monoxide (CO), hydrogen cyanide (HCN), and ethane (C2H6) measured using Fourier-transform infrared (FTIR) spectrometers at 10 sites affiliated with the Network for the Detection of Atmospheric Composition Change (NDACC). Six are high-...
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Online Access: | https://doi.org/10.5194/acp-20-12813-2020 |
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ftncar:oai:drupal-site.org:articles_23782 2024-04-28T08:11:55+00:00 Detection and attribution of wildfire pollution in the Arctic and northern midlatitudes using a network of Fourier-transform infrared spectrometers and GEOS-Chem Lutsch, Erik (author) Strong, Kimberly (author) Jones, Dylan B. A. (author) Blumenstock, Thomas (author) Conway, Stephanie (author) Fisher, Jenny A. (author) Hannigan, James W. (author) Hase, Frank (author) Kasai, Yasuko (author) Mahieu, Emmanuel (author) Makarova, Maria (author) Morino, Isamu (author) Nagahama, Tomoo (author) Notholt, Justus (author) Ortega, Ivan (author) Palm, Mathias (author) Poberovskii, Anatoly V. (author) Sussmann, Ralf (author) Warneke, Thorsten (author) 2020-11-05 https://doi.org/10.5194/acp-20-12813-2020 en eng Atmospheric Chemistry and Physics--Atmos. Chem. Phys.--1680-7324 articles:23782 ark:/85065/d7377d03 doi:10.5194/acp-20-12813-2020 Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. article Text 2020 ftncar https://doi.org/10.5194/acp-20-12813-2020 2024-04-04T17:33:50Z We present a multiyear time series of column abundances of carbon monoxide (CO), hydrogen cyanide (HCN), and ethane (C2H6) measured using Fourier-transform infrared (FTIR) spectrometers at 10 sites affiliated with the Network for the Detection of Atmospheric Composition Change (NDACC). Six are high-latitude sites: Eureka, Ny-Alesund, Thule, Kiruna, Poker Flat, and St. Petersburg, and four are midlatitude sites: Zugspitze, Jungfraujoch, Toronto, and Rikubetsu. For each site, the interannual trends and seasonal variabilities of the CO time series are accounted for, allowing background column amounts to be determined. Enhancements above the seasonal background were used to identify possible wildfire pollution events. Since the abundance of each trace gas emitted in a wildfire event is specific to the type of vegetation burned and the burning phase, correlations of CO to the long-lived wildfire tracers HCN and C2H6 allow for further confirmation of the detection of wildfire pollution. A GEOS-Chem tagged CO sim- ulation with Global Fire Assimilation System (GFASv1.2) biomass burning emissions was used to determine the source attribution of CO concentrations at each site from 2003 to 2018. For each detected wildfire pollution event, FLEXPART back-trajectory simulations were performed to determine the transport times of the smoke plume. Accounting for the loss of each species during transport, the enhancement ratios of HCN and C2H6 with respect to CO were converted to emission ratios. We report mean emission ratios with respect to CO for HCN and C2H6 of 0.0047 and 0.0092, respectively, with a standard deviation of 0.0014 and 0.0046, respectively, determined from 23 boreal North American wildfire events. Similarly, we report mean emission ratios for HCN and C2H6 of 0.0049 and 0.0100, respectively, with a standard deviation of 0.0025 and 0.0042, respectively, determined from 39 boreal Asian wildfire events. The agreement of our emission ratios with literature values illustrates the capability of ground-based FTIR ... Article in Journal/Newspaper Arctic Kiruna OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Atmospheric Chemistry and Physics 20 21 12813 12851 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
We present a multiyear time series of column abundances of carbon monoxide (CO), hydrogen cyanide (HCN), and ethane (C2H6) measured using Fourier-transform infrared (FTIR) spectrometers at 10 sites affiliated with the Network for the Detection of Atmospheric Composition Change (NDACC). Six are high-latitude sites: Eureka, Ny-Alesund, Thule, Kiruna, Poker Flat, and St. Petersburg, and four are midlatitude sites: Zugspitze, Jungfraujoch, Toronto, and Rikubetsu. For each site, the interannual trends and seasonal variabilities of the CO time series are accounted for, allowing background column amounts to be determined. Enhancements above the seasonal background were used to identify possible wildfire pollution events. Since the abundance of each trace gas emitted in a wildfire event is specific to the type of vegetation burned and the burning phase, correlations of CO to the long-lived wildfire tracers HCN and C2H6 allow for further confirmation of the detection of wildfire pollution. A GEOS-Chem tagged CO sim- ulation with Global Fire Assimilation System (GFASv1.2) biomass burning emissions was used to determine the source attribution of CO concentrations at each site from 2003 to 2018. For each detected wildfire pollution event, FLEXPART back-trajectory simulations were performed to determine the transport times of the smoke plume. Accounting for the loss of each species during transport, the enhancement ratios of HCN and C2H6 with respect to CO were converted to emission ratios. We report mean emission ratios with respect to CO for HCN and C2H6 of 0.0047 and 0.0092, respectively, with a standard deviation of 0.0014 and 0.0046, respectively, determined from 23 boreal North American wildfire events. Similarly, we report mean emission ratios for HCN and C2H6 of 0.0049 and 0.0100, respectively, with a standard deviation of 0.0025 and 0.0042, respectively, determined from 39 boreal Asian wildfire events. The agreement of our emission ratios with literature values illustrates the capability of ground-based FTIR ... |
author2 |
Lutsch, Erik (author) Strong, Kimberly (author) Jones, Dylan B. A. (author) Blumenstock, Thomas (author) Conway, Stephanie (author) Fisher, Jenny A. (author) Hannigan, James W. (author) Hase, Frank (author) Kasai, Yasuko (author) Mahieu, Emmanuel (author) Makarova, Maria (author) Morino, Isamu (author) Nagahama, Tomoo (author) Notholt, Justus (author) Ortega, Ivan (author) Palm, Mathias (author) Poberovskii, Anatoly V. (author) Sussmann, Ralf (author) Warneke, Thorsten (author) |
format |
Article in Journal/Newspaper |
title |
Detection and attribution of wildfire pollution in the Arctic and northern midlatitudes using a network of Fourier-transform infrared spectrometers and GEOS-Chem |
spellingShingle |
Detection and attribution of wildfire pollution in the Arctic and northern midlatitudes using a network of Fourier-transform infrared spectrometers and GEOS-Chem |
title_short |
Detection and attribution of wildfire pollution in the Arctic and northern midlatitudes using a network of Fourier-transform infrared spectrometers and GEOS-Chem |
title_full |
Detection and attribution of wildfire pollution in the Arctic and northern midlatitudes using a network of Fourier-transform infrared spectrometers and GEOS-Chem |
title_fullStr |
Detection and attribution of wildfire pollution in the Arctic and northern midlatitudes using a network of Fourier-transform infrared spectrometers and GEOS-Chem |
title_full_unstemmed |
Detection and attribution of wildfire pollution in the Arctic and northern midlatitudes using a network of Fourier-transform infrared spectrometers and GEOS-Chem |
title_sort |
detection and attribution of wildfire pollution in the arctic and northern midlatitudes using a network of fourier-transform infrared spectrometers and geos-chem |
publishDate |
2020 |
url |
https://doi.org/10.5194/acp-20-12813-2020 |
genre |
Arctic Kiruna |
genre_facet |
Arctic Kiruna |
op_relation |
Atmospheric Chemistry and Physics--Atmos. Chem. Phys.--1680-7324 articles:23782 ark:/85065/d7377d03 doi:10.5194/acp-20-12813-2020 |
op_rights |
Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
op_doi |
https://doi.org/10.5194/acp-20-12813-2020 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
20 |
container_issue |
21 |
container_start_page |
12813 |
op_container_end_page |
12851 |
_version_ |
1797579059994034176 |