Identifying fire plumes in the Arctic with tropospheric FTIR measurements and transport models
We investigate Arctic tropospheric composition using ground-based Fourier transform infrared (FTIR) solar absorption spectra, recorded at the Polar Environment Atmospheric Research Laboratory (PEARL, Eureka, Nunavut, Canada, 80°05' N, 86°42' W) and at Thule (Greenland, 76°53' N, −68°7...
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ftdoajarticles:oai:doaj.org/article:b5b32a3163cf41a6bf6ce8086d68cb49 2023-05-15T14:54:23+02:00 Identifying fire plumes in the Arctic with tropospheric FTIR measurements and transport models C. Viatte K. Strong J. Hannigan E. Nussbaumer L. K. Emmons S. Conway C. Paton-Walsh J. Hartley J. Benmergui J. Lin 2015-03-01T00:00:00Z https://doi.org/10.5194/acp-15-2227-2015 https://doaj.org/article/b5b32a3163cf41a6bf6ce8086d68cb49 EN eng Copernicus Publications http://www.atmos-chem-phys.net/15/2227/2015/acp-15-2227-2015.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 doi:10.5194/acp-15-2227-2015 https://doaj.org/article/b5b32a3163cf41a6bf6ce8086d68cb49 Atmospheric Chemistry and Physics, Vol 15, Iss 5, Pp 2227-2246 (2015) Physics QC1-999 Chemistry QD1-999 article 2015 ftdoajarticles https://doi.org/10.5194/acp-15-2227-2015 2023-01-08T01:24:32Z We investigate Arctic tropospheric composition using ground-based Fourier transform infrared (FTIR) solar absorption spectra, recorded at the Polar Environment Atmospheric Research Laboratory (PEARL, Eureka, Nunavut, Canada, 80°05' N, 86°42' W) and at Thule (Greenland, 76°53' N, −68°74' W) from 2008 to 2012. The target species, carbon monoxide (CO), hydrogen cyanide (HCN), ethane (C 2 H 6 ), acetylene (C 2 H 2 ), formic acid (HCOOH), and formaldehyde (H 2 CO) are emitted by biomass burning and can be transported from mid-latitudes to the Arctic. By detecting simultaneous enhancements of three biomass burning tracers (HCN, CO, and C 2 H 6 ), ten and eight fire events are identified at Eureka and Thule, respectively, within the 5-year FTIR time series. Analyses of Hybrid Single Particle Lagrangian Integrated Trajectory (HYSPLIT) model back-trajectories coupled with Moderate Resolution Imaging Spectroradiometer (MODIS) fire hotspot data, Stochastic Time-Inverted Lagrangian Transport (STILT) model footprints, and Ozone Monitoring Instrument (OMI) UV aerosol index maps, are used to attribute burning source regions and travel time durations of the plumes. By taking into account the effect of aging of the smoke plumes, measured FTIR enhancement ratios were corrected to obtain emission ratios and equivalent emission factors. The means of emission factors for extratropical forest estimated with the two FTIR data sets are 0.40 ± 0.21 g kg −1 for HCN, 1.24 ± 0.71 g kg −1 for C 2 H 6 , 0.34 ± 0.21 g kg −1 for C 2 H 2 , and 2.92 ± 1.30 g kg −1 for HCOOH. The emission factor for CH 3 OH estimated at Eureka is 3.44 ± 1.68 g kg −1 . To improve our knowledge concerning the dynamical and chemical processes associated with Arctic pollution from fires, the two sets of FTIR measurements were compared to the Model for OZone And Related chemical Tracers, version 4 (MOZART-4). Seasonal cycles and day-to-day variabilities were compared to assess the ability of the model to reproduce emissions from fires and their transport. Good ... Article in Journal/Newspaper Arctic Arctic pollution Eureka Greenland Nunavut Thule Directory of Open Access Journals: DOAJ Articles Arctic Nunavut Canada Greenland Eureka ENVELOPE(-85.940,-85.940,79.990,79.990) Atmospheric Chemistry and Physics 15 5 2227 2246 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
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Physics QC1-999 Chemistry QD1-999 C. Viatte K. Strong J. Hannigan E. Nussbaumer L. K. Emmons S. Conway C. Paton-Walsh J. Hartley J. Benmergui J. Lin Identifying fire plumes in the Arctic with tropospheric FTIR measurements and transport models |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
We investigate Arctic tropospheric composition using ground-based Fourier transform infrared (FTIR) solar absorption spectra, recorded at the Polar Environment Atmospheric Research Laboratory (PEARL, Eureka, Nunavut, Canada, 80°05' N, 86°42' W) and at Thule (Greenland, 76°53' N, −68°74' W) from 2008 to 2012. The target species, carbon monoxide (CO), hydrogen cyanide (HCN), ethane (C 2 H 6 ), acetylene (C 2 H 2 ), formic acid (HCOOH), and formaldehyde (H 2 CO) are emitted by biomass burning and can be transported from mid-latitudes to the Arctic. By detecting simultaneous enhancements of three biomass burning tracers (HCN, CO, and C 2 H 6 ), ten and eight fire events are identified at Eureka and Thule, respectively, within the 5-year FTIR time series. Analyses of Hybrid Single Particle Lagrangian Integrated Trajectory (HYSPLIT) model back-trajectories coupled with Moderate Resolution Imaging Spectroradiometer (MODIS) fire hotspot data, Stochastic Time-Inverted Lagrangian Transport (STILT) model footprints, and Ozone Monitoring Instrument (OMI) UV aerosol index maps, are used to attribute burning source regions and travel time durations of the plumes. By taking into account the effect of aging of the smoke plumes, measured FTIR enhancement ratios were corrected to obtain emission ratios and equivalent emission factors. The means of emission factors for extratropical forest estimated with the two FTIR data sets are 0.40 ± 0.21 g kg −1 for HCN, 1.24 ± 0.71 g kg −1 for C 2 H 6 , 0.34 ± 0.21 g kg −1 for C 2 H 2 , and 2.92 ± 1.30 g kg −1 for HCOOH. The emission factor for CH 3 OH estimated at Eureka is 3.44 ± 1.68 g kg −1 . To improve our knowledge concerning the dynamical and chemical processes associated with Arctic pollution from fires, the two sets of FTIR measurements were compared to the Model for OZone And Related chemical Tracers, version 4 (MOZART-4). Seasonal cycles and day-to-day variabilities were compared to assess the ability of the model to reproduce emissions from fires and their transport. Good ... |
format |
Article in Journal/Newspaper |
author |
C. Viatte K. Strong J. Hannigan E. Nussbaumer L. K. Emmons S. Conway C. Paton-Walsh J. Hartley J. Benmergui J. Lin |
author_facet |
C. Viatte K. Strong J. Hannigan E. Nussbaumer L. K. Emmons S. Conway C. Paton-Walsh J. Hartley J. Benmergui J. Lin |
author_sort |
C. Viatte |
title |
Identifying fire plumes in the Arctic with tropospheric FTIR measurements and transport models |
title_short |
Identifying fire plumes in the Arctic with tropospheric FTIR measurements and transport models |
title_full |
Identifying fire plumes in the Arctic with tropospheric FTIR measurements and transport models |
title_fullStr |
Identifying fire plumes in the Arctic with tropospheric FTIR measurements and transport models |
title_full_unstemmed |
Identifying fire plumes in the Arctic with tropospheric FTIR measurements and transport models |
title_sort |
identifying fire plumes in the arctic with tropospheric ftir measurements and transport models |
publisher |
Copernicus Publications |
publishDate |
2015 |
url |
https://doi.org/10.5194/acp-15-2227-2015 https://doaj.org/article/b5b32a3163cf41a6bf6ce8086d68cb49 |
long_lat |
ENVELOPE(-85.940,-85.940,79.990,79.990) |
geographic |
Arctic Nunavut Canada Greenland Eureka |
geographic_facet |
Arctic Nunavut Canada Greenland Eureka |
genre |
Arctic Arctic pollution Eureka Greenland Nunavut Thule |
genre_facet |
Arctic Arctic pollution Eureka Greenland Nunavut Thule |
op_source |
Atmospheric Chemistry and Physics, Vol 15, Iss 5, Pp 2227-2246 (2015) |
op_relation |
http://www.atmos-chem-phys.net/15/2227/2015/acp-15-2227-2015.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 doi:10.5194/acp-15-2227-2015 https://doaj.org/article/b5b32a3163cf41a6bf6ce8086d68cb49 |
op_doi |
https://doi.org/10.5194/acp-15-2227-2015 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
15 |
container_issue |
5 |
container_start_page |
2227 |
op_container_end_page |
2246 |
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1766326107858010112 |