Ground solar absorption observations of total column CO, CO2, CH4, and aerosol optical depth from California's Sequoia Lightning Complex Fire: emission factors and modified combustion efficiency at regional scales
With global wildfires becoming more widespread and severe, tracking their emissions of greenhouse gases and air pollutants is becoming increasingly important. Wildfire emissions have primarily been characterized by in situ laboratory and field observations at fine scales. While this approach capture...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00065925 2023-06-11T04:03:05+02:00 Ground solar absorption observations of total column CO, CO2, CH4, and aerosol optical depth from California's Sequoia Lightning Complex Fire: emission factors and modified combustion efficiency at regional scales Frausto-Vicencio, Isis Heerah, Sajjan Meyer, Aaron G. Parker, Harrison A. Dubey, Manvendra Hopkins, Francesca M. 2023-04 electronic https://doi.org/10.5194/acp-23-4521-2023 https://noa.gwlb.de/receive/cop_mods_00065925 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00064431/acp-23-4521-2023.pdf https://acp.copernicus.org/articles/23/4521/2023/acp-23-4521-2023.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-23-4521-2023 https://noa.gwlb.de/receive/cop_mods_00065925 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00064431/acp-23-4521-2023.pdf https://acp.copernicus.org/articles/23/4521/2023/acp-23-4521-2023.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2023 ftnonlinearchiv https://doi.org/10.5194/acp-23-4521-2023 2023-04-23T23:19:58Z With global wildfires becoming more widespread and severe, tracking their emissions of greenhouse gases and air pollutants is becoming increasingly important. Wildfire emissions have primarily been characterized by in situ laboratory and field observations at fine scales. While this approach captures the mechanisms relating emissions to combustion phase and fuel properties, their evaluation on regional-scale plumes has been limited. In this study, we report remote observations of total column trace gases and aerosols during the 2020 wildfire season from smoke plumes in the Sierra Nevada of California with an EM27/SUN solar Fourier transform infrared (FTIR) spectrometer. We derive total column aerosol optical depth (AOD), emission factors (EFs) and modified combustion efficiency (MCE) for these fires and evaluate relationships between them, based on combustion phase at regional scales. We demonstrate that the EM27/SUN effectively detects changes in CO, CO2, and CH4 in the atmospheric column at ∼10 km horizontal scales that are attributed to wildfire emissions. These observations are used to derive total column EFCO of 120.5±12.2 and EF CH4 of 4.3±0.8 for a regional smoke plume event in mixed combustion phases. These values are consistent with in situ relationships measured in similar temperate coniferous forest wildfires. FTIR-derived AOD was compared to a nearby AERONET (AErosol RObotic NETwork) station and observed ratios of XCO to AOD were consistent with those previously observed from satellites. We also show that co-located XCO observations from the TROPOspheric Monitoring Instrument (TROPOMI) satellite-based instrument are 9.7±1.3 % higher than our EM27/SUN observations during the wildfire period. Finally, we put wildfire CH4 emissions in context of the California state CH4 budget and estimate that 213.7±49.8 Gg CH4 were emitted by large wildfires in California during 2020, about 13.7 % of the total state CH4 emissions in 2020. Our work demonstrates a novel application of the ground-based EM27/SUN solar ... Article in Journal/Newspaper Aerosol Robotic Network Niedersächsisches Online-Archiv NOA Atmospheric Chemistry and Physics 23 7 4521 4543 |
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article Verlagsveröffentlichung Frausto-Vicencio, Isis Heerah, Sajjan Meyer, Aaron G. Parker, Harrison A. Dubey, Manvendra Hopkins, Francesca M. Ground solar absorption observations of total column CO, CO2, CH4, and aerosol optical depth from California's Sequoia Lightning Complex Fire: emission factors and modified combustion efficiency at regional scales |
topic_facet |
article Verlagsveröffentlichung |
description |
With global wildfires becoming more widespread and severe, tracking their emissions of greenhouse gases and air pollutants is becoming increasingly important. Wildfire emissions have primarily been characterized by in situ laboratory and field observations at fine scales. While this approach captures the mechanisms relating emissions to combustion phase and fuel properties, their evaluation on regional-scale plumes has been limited. In this study, we report remote observations of total column trace gases and aerosols during the 2020 wildfire season from smoke plumes in the Sierra Nevada of California with an EM27/SUN solar Fourier transform infrared (FTIR) spectrometer. We derive total column aerosol optical depth (AOD), emission factors (EFs) and modified combustion efficiency (MCE) for these fires and evaluate relationships between them, based on combustion phase at regional scales. We demonstrate that the EM27/SUN effectively detects changes in CO, CO2, and CH4 in the atmospheric column at ∼10 km horizontal scales that are attributed to wildfire emissions. These observations are used to derive total column EFCO of 120.5±12.2 and EF CH4 of 4.3±0.8 for a regional smoke plume event in mixed combustion phases. These values are consistent with in situ relationships measured in similar temperate coniferous forest wildfires. FTIR-derived AOD was compared to a nearby AERONET (AErosol RObotic NETwork) station and observed ratios of XCO to AOD were consistent with those previously observed from satellites. We also show that co-located XCO observations from the TROPOspheric Monitoring Instrument (TROPOMI) satellite-based instrument are 9.7±1.3 % higher than our EM27/SUN observations during the wildfire period. Finally, we put wildfire CH4 emissions in context of the California state CH4 budget and estimate that 213.7±49.8 Gg CH4 were emitted by large wildfires in California during 2020, about 13.7 % of the total state CH4 emissions in 2020. Our work demonstrates a novel application of the ground-based EM27/SUN solar ... |
format |
Article in Journal/Newspaper |
author |
Frausto-Vicencio, Isis Heerah, Sajjan Meyer, Aaron G. Parker, Harrison A. Dubey, Manvendra Hopkins, Francesca M. |
author_facet |
Frausto-Vicencio, Isis Heerah, Sajjan Meyer, Aaron G. Parker, Harrison A. Dubey, Manvendra Hopkins, Francesca M. |
author_sort |
Frausto-Vicencio, Isis |
title |
Ground solar absorption observations of total column CO, CO2, CH4, and aerosol optical depth from California's Sequoia Lightning Complex Fire: emission factors and modified combustion efficiency at regional scales |
title_short |
Ground solar absorption observations of total column CO, CO2, CH4, and aerosol optical depth from California's Sequoia Lightning Complex Fire: emission factors and modified combustion efficiency at regional scales |
title_full |
Ground solar absorption observations of total column CO, CO2, CH4, and aerosol optical depth from California's Sequoia Lightning Complex Fire: emission factors and modified combustion efficiency at regional scales |
title_fullStr |
Ground solar absorption observations of total column CO, CO2, CH4, and aerosol optical depth from California's Sequoia Lightning Complex Fire: emission factors and modified combustion efficiency at regional scales |
title_full_unstemmed |
Ground solar absorption observations of total column CO, CO2, CH4, and aerosol optical depth from California's Sequoia Lightning Complex Fire: emission factors and modified combustion efficiency at regional scales |
title_sort |
ground solar absorption observations of total column co, co2, ch4, and aerosol optical depth from california's sequoia lightning complex fire: emission factors and modified combustion efficiency at regional scales |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/acp-23-4521-2023 https://noa.gwlb.de/receive/cop_mods_00065925 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00064431/acp-23-4521-2023.pdf https://acp.copernicus.org/articles/23/4521/2023/acp-23-4521-2023.pdf |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
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-23-4521-2023 https://noa.gwlb.de/receive/cop_mods_00065925 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00064431/acp-23-4521-2023.pdf https://acp.copernicus.org/articles/23/4521/2023/acp-23-4521-2023.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/acp-23-4521-2023 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
23 |
container_issue |
7 |
container_start_page |
4521 |
op_container_end_page |
4543 |
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1768374443825954816 |