An improved representation of fire non-methane organic gases (NMOGs) in models: emissions to reactivity
<jats:p>Abstract. Fires emit a substantial amount of non-methane organic gases (NMOGs), the atmospheric oxidation of which can contribute to ozone and secondary particulate matter formation. However, the abundance and reactivity of these fire NMOGs are uncertain and historically not well const...
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ftmit:oai:dspace.mit.edu:1721.1/148580 2023-06-11T04:09:57+02:00 An improved representation of fire non-methane organic gases (NMOGs) in models: emissions to reactivity Carter, Therese S Heald, Colette L Kroll, Jesse H Apel, Eric C Blake, Donald Coggon, Matthew Edtbauer, Achim Gkatzelis, Georgios Hornbrook, Rebecca S Peischl, Jeff Pfannerstill, Eva Y Piel, Felix Reijrink, Nina G Ringsdorf, Akima Warneke, Carsten Williams, Jonathan Wisthaler, Armin Xu, Lu Massachusetts Institute of Technology. Department of Civil and Environmental Engineering 2023-03-16T17:06:28Z application/pdf https://hdl.handle.net/1721.1/148580 en eng Copernicus GmbH 10.5194/ACP-22-12093-2022 Atmospheric Chemistry and Physics https://hdl.handle.net/1721.1/148580 Carter, Therese S, Heald, Colette L, Kroll, Jesse H, Apel, Eric C, Blake, Donald et al. 2022. "An improved representation of fire non-methane organic gases (NMOGs) in models: emissions to reactivity." Atmospheric Chemistry and Physics, 22 (18). Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ Copernicus Publications Article http://purl.org/eprint/type/JournalArticle 2023 ftmit 2023-05-29T07:25:25Z <jats:p>Abstract. Fires emit a substantial amount of non-methane organic gases (NMOGs), the atmospheric oxidation of which can contribute to ozone and secondary particulate matter formation. However, the abundance and reactivity of these fire NMOGs are uncertain and historically not well constrained. In this work, we expand the representation of fire NMOGs in a global chemical transport model, GEOS-Chem. We update emission factors to Andreae (2019) and the chemical mechanism to include recent aromatic and ethene and ethyne model improvements (Bates et al., 2021; Kwon et al., 2021). We expand the representation of NMOGs by adding lumped furans to the model (including their fire emission and oxidation chemistry) and by adding fire emissions of nine species already included in the model, prioritized for their reactivity using data from the Fire Influence on Regional to Global Environments (FIREX) laboratory studies. Based on quantified emissions factors, we estimate that our improved representation captures 72 % of emitted, identified NMOG carbon mass and 49 % of OH reactivity from savanna and temperate forest fires, a substantial increase from the standard model (49 % of mass, 28 % of OH reactivity). We evaluate fire NMOGs in our model with observations from the Amazon Tall Tower Observatory (ATTO) in Brazil, Fire Influence on Regional to Global Environments and Air Quality (FIREX-AQ) and DC3 in the US, and Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) in boreal Canada. We show that NMOGs, including furan, are well simulated in the eastern US with some underestimates in the western US and that adding fire emissions improves our ability to simulate ethene in boreal Canada. We estimate that fires provide 15 % of annual mean simulated surface OH reactivity globally, as well as more than 75 % over fire source regions. Over continental regions about half of this simulated fire reactivity comes from NMOG species. We find that furans and ethene are important globally ... Article in Journal/Newspaper Arctic DSpace@MIT (Massachusetts Institute of Technology) Arctic Canada Bates ENVELOPE(-65.631,-65.631,-65.821,-65.821) |
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ftmit |
language |
English |
description |
<jats:p>Abstract. Fires emit a substantial amount of non-methane organic gases (NMOGs), the atmospheric oxidation of which can contribute to ozone and secondary particulate matter formation. However, the abundance and reactivity of these fire NMOGs are uncertain and historically not well constrained. In this work, we expand the representation of fire NMOGs in a global chemical transport model, GEOS-Chem. We update emission factors to Andreae (2019) and the chemical mechanism to include recent aromatic and ethene and ethyne model improvements (Bates et al., 2021; Kwon et al., 2021). We expand the representation of NMOGs by adding lumped furans to the model (including their fire emission and oxidation chemistry) and by adding fire emissions of nine species already included in the model, prioritized for their reactivity using data from the Fire Influence on Regional to Global Environments (FIREX) laboratory studies. Based on quantified emissions factors, we estimate that our improved representation captures 72 % of emitted, identified NMOG carbon mass and 49 % of OH reactivity from savanna and temperate forest fires, a substantial increase from the standard model (49 % of mass, 28 % of OH reactivity). We evaluate fire NMOGs in our model with observations from the Amazon Tall Tower Observatory (ATTO) in Brazil, Fire Influence on Regional to Global Environments and Air Quality (FIREX-AQ) and DC3 in the US, and Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) in boreal Canada. We show that NMOGs, including furan, are well simulated in the eastern US with some underestimates in the western US and that adding fire emissions improves our ability to simulate ethene in boreal Canada. We estimate that fires provide 15 % of annual mean simulated surface OH reactivity globally, as well as more than 75 % over fire source regions. Over continental regions about half of this simulated fire reactivity comes from NMOG species. We find that furans and ethene are important globally ... |
author2 |
Massachusetts Institute of Technology. Department of Civil and Environmental Engineering |
format |
Article in Journal/Newspaper |
author |
Carter, Therese S Heald, Colette L Kroll, Jesse H Apel, Eric C Blake, Donald Coggon, Matthew Edtbauer, Achim Gkatzelis, Georgios Hornbrook, Rebecca S Peischl, Jeff Pfannerstill, Eva Y Piel, Felix Reijrink, Nina G Ringsdorf, Akima Warneke, Carsten Williams, Jonathan Wisthaler, Armin Xu, Lu |
spellingShingle |
Carter, Therese S Heald, Colette L Kroll, Jesse H Apel, Eric C Blake, Donald Coggon, Matthew Edtbauer, Achim Gkatzelis, Georgios Hornbrook, Rebecca S Peischl, Jeff Pfannerstill, Eva Y Piel, Felix Reijrink, Nina G Ringsdorf, Akima Warneke, Carsten Williams, Jonathan Wisthaler, Armin Xu, Lu An improved representation of fire non-methane organic gases (NMOGs) in models: emissions to reactivity |
author_facet |
Carter, Therese S Heald, Colette L Kroll, Jesse H Apel, Eric C Blake, Donald Coggon, Matthew Edtbauer, Achim Gkatzelis, Georgios Hornbrook, Rebecca S Peischl, Jeff Pfannerstill, Eva Y Piel, Felix Reijrink, Nina G Ringsdorf, Akima Warneke, Carsten Williams, Jonathan Wisthaler, Armin Xu, Lu |
author_sort |
Carter, Therese S |
title |
An improved representation of fire non-methane organic gases (NMOGs) in models: emissions to reactivity |
title_short |
An improved representation of fire non-methane organic gases (NMOGs) in models: emissions to reactivity |
title_full |
An improved representation of fire non-methane organic gases (NMOGs) in models: emissions to reactivity |
title_fullStr |
An improved representation of fire non-methane organic gases (NMOGs) in models: emissions to reactivity |
title_full_unstemmed |
An improved representation of fire non-methane organic gases (NMOGs) in models: emissions to reactivity |
title_sort |
improved representation of fire non-methane organic gases (nmogs) in models: emissions to reactivity |
publisher |
Copernicus GmbH |
publishDate |
2023 |
url |
https://hdl.handle.net/1721.1/148580 |
long_lat |
ENVELOPE(-65.631,-65.631,-65.821,-65.821) |
geographic |
Arctic Canada Bates |
geographic_facet |
Arctic Canada Bates |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Copernicus Publications |
op_relation |
10.5194/ACP-22-12093-2022 Atmospheric Chemistry and Physics https://hdl.handle.net/1721.1/148580 Carter, Therese S, Heald, Colette L, Kroll, Jesse H, Apel, Eric C, Blake, Donald et al. 2022. "An improved representation of fire non-methane organic gases (NMOGs) in models: emissions to reactivity." Atmospheric Chemistry and Physics, 22 (18). |
op_rights |
Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ |
_version_ |
1768383979822514176 |