Large VOC enhancements in recent massive wildfires observed from space
International audience Massive wildfires erupted in Amazonia and through the subarctic region in summer 2019, and in Australia in winter 2019-2020. During such biomass burning events, sizeable amounts of volatile organic compounds (VOCs) can be emitted directly by the fires as well as rapidly produc...
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fttriple:oai:gotriple.eu:10670/1.jf9tfx 2023-05-15T18:28:14+02:00 Large VOC enhancements in recent massive wildfires observed from space Franco, Bruno Clarisse, Lieven Hadji-Lazaro, Juliette Hurtmans, Daniel Lecomte, Gilles Turquety, Solène Clerbaux, Cathy Coheur, Pierre-François Spectroscopy, Quantum Chemistry and Atmospheric Remote Sensing (SQUARES) Université libre de Bruxelles (ULB) TROPO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Sorbonne Université (SU)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS) Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL) Online, Germany 2020-05-04 https://doi.org/10.5194/egusphere-egu2020-20243 https://hal-insu.archives-ouvertes.fr/insu-03023591 en eng HAL CCSD insu-03023591 doi:10.5194/egusphere-egu2020-20243 10670/1.jf9tfx https://hal-insu.archives-ouvertes.fr/insu-03023591 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société EGU General Assembly 2020 EGU General Assembly 2020, May 2020, Online, Germany. ⟨10.5194/egusphere-egu2020-20243⟩ envir geo Conference Output https://vocabularies.coar-repositories.org/resource_types/c_c94f/ 2020 fttriple https://doi.org/10.5194/egusphere-egu2020-20243 2023-01-22T18:30:46Z International audience Massive wildfires erupted in Amazonia and through the subarctic region in summer 2019, and in Australia in winter 2019-2020. During such biomass burning events, sizeable amounts of volatile organic compounds (VOCs) can be emitted directly by the fires as well as rapidly produced in plumes via the degradation of short-lived gas precursors. The VOCs have a significant impact on tropospheric chemistry by, e.g., affecting the oxidative capacity of the atmosphere. Nadir-viewing infrared sensors onboard meteorological satellites provide global and spatially dense observations that are very useful to track biomass burning events throughout the globe and to provide trace gas quantification in fire plumes.We apply a general retrieval framework, based on an artificial neural network, to derive the integrated abundance (total column) of several major VOCs from the infrared radiance spectra recorded by IASI (Infrared Atmospheric Sounding Interferometer) embarked on the Metop platforms. Quasi-global distributions of methanol (CH3OH), formic (HCOOH) and acetic (CH3COOH) acids, PAN, acetone (CH3COCH3), acetylene (C2H2) and hydrogen cyanide (HCN) column abundance are produced twice-daily from the a.m. and p.m. overpasses of the satellite instrument. In particular, we use the IASI data to produce daily regional snapshots over biomass burning areas of interest and to quantify the VOC enhancements in the plumes from the recent Amazonian, Australian and subarctic wildfires. Finally, the abundance ratios of these VOC Other/Unknown Material Subarctic Unknown |
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envir geo Franco, Bruno Clarisse, Lieven Hadji-Lazaro, Juliette Hurtmans, Daniel Lecomte, Gilles Turquety, Solène Clerbaux, Cathy Coheur, Pierre-François Large VOC enhancements in recent massive wildfires observed from space |
topic_facet |
envir geo |
description |
International audience Massive wildfires erupted in Amazonia and through the subarctic region in summer 2019, and in Australia in winter 2019-2020. During such biomass burning events, sizeable amounts of volatile organic compounds (VOCs) can be emitted directly by the fires as well as rapidly produced in plumes via the degradation of short-lived gas precursors. The VOCs have a significant impact on tropospheric chemistry by, e.g., affecting the oxidative capacity of the atmosphere. Nadir-viewing infrared sensors onboard meteorological satellites provide global and spatially dense observations that are very useful to track biomass burning events throughout the globe and to provide trace gas quantification in fire plumes.We apply a general retrieval framework, based on an artificial neural network, to derive the integrated abundance (total column) of several major VOCs from the infrared radiance spectra recorded by IASI (Infrared Atmospheric Sounding Interferometer) embarked on the Metop platforms. Quasi-global distributions of methanol (CH3OH), formic (HCOOH) and acetic (CH3COOH) acids, PAN, acetone (CH3COCH3), acetylene (C2H2) and hydrogen cyanide (HCN) column abundance are produced twice-daily from the a.m. and p.m. overpasses of the satellite instrument. In particular, we use the IASI data to produce daily regional snapshots over biomass burning areas of interest and to quantify the VOC enhancements in the plumes from the recent Amazonian, Australian and subarctic wildfires. Finally, the abundance ratios of these VOC |
author2 |
Spectroscopy, Quantum Chemistry and Atmospheric Remote Sensing (SQUARES) Université libre de Bruxelles (ULB) TROPO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Sorbonne Université (SU)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS) Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL) |
format |
Other/Unknown Material |
author |
Franco, Bruno Clarisse, Lieven Hadji-Lazaro, Juliette Hurtmans, Daniel Lecomte, Gilles Turquety, Solène Clerbaux, Cathy Coheur, Pierre-François |
author_facet |
Franco, Bruno Clarisse, Lieven Hadji-Lazaro, Juliette Hurtmans, Daniel Lecomte, Gilles Turquety, Solène Clerbaux, Cathy Coheur, Pierre-François |
author_sort |
Franco, Bruno |
title |
Large VOC enhancements in recent massive wildfires observed from space |
title_short |
Large VOC enhancements in recent massive wildfires observed from space |
title_full |
Large VOC enhancements in recent massive wildfires observed from space |
title_fullStr |
Large VOC enhancements in recent massive wildfires observed from space |
title_full_unstemmed |
Large VOC enhancements in recent massive wildfires observed from space |
title_sort |
large voc enhancements in recent massive wildfires observed from space |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://doi.org/10.5194/egusphere-egu2020-20243 https://hal-insu.archives-ouvertes.fr/insu-03023591 |
op_coverage |
Online, Germany |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société EGU General Assembly 2020 EGU General Assembly 2020, May 2020, Online, Germany. ⟨10.5194/egusphere-egu2020-20243⟩ |
op_relation |
insu-03023591 doi:10.5194/egusphere-egu2020-20243 10670/1.jf9tfx https://hal-insu.archives-ouvertes.fr/insu-03023591 |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/egusphere-egu2020-20243 |
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1766210626926936064 |