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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ftepunivpsaclay:oai:HAL:insu-03023591v1 2024-06-09T07:49:50+00:00 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) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (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-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL) Online, Germany 2020-05-04 https://insu.hal.science/insu-03023591 https://doi.org/10.5194/egusphere-egu2020-20243 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu2020-20243 insu-03023591 https://insu.hal.science/insu-03023591 doi:10.5194/egusphere-egu2020-20243 EGU General Assembly 2020 https://insu.hal.science/insu-03023591 EGU General Assembly 2020, May 2020, Online, Germany. ⟨10.5194/egusphere-egu2020-20243⟩ [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] [SDE]Environmental Sciences info:eu-repo/semantics/conferenceObject Conference papers 2020 ftepunivpsaclay https://doi.org/10.5194/egusphere-egu2020-20243 2024-05-16T12:18:45Z 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 Conference Object Subarctic École Polytechnique, Université Paris-Saclay: HAL |
institution |
Open Polar |
collection |
École Polytechnique, Université Paris-Saclay: HAL |
op_collection_id |
ftepunivpsaclay |
language |
English |
topic |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] [SDE]Environmental Sciences |
spellingShingle |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] [SDE]Environmental Sciences 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 |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] [SDE]Environmental Sciences |
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) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (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-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL) |
format |
Conference Object |
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://insu.hal.science/insu-03023591 https://doi.org/10.5194/egusphere-egu2020-20243 |
op_coverage |
Online, Germany |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
EGU General Assembly 2020 https://insu.hal.science/insu-03023591 EGU General Assembly 2020, May 2020, Online, Germany. ⟨10.5194/egusphere-egu2020-20243⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu2020-20243 insu-03023591 https://insu.hal.science/insu-03023591 doi:10.5194/egusphere-egu2020-20243 |
op_doi |
https://doi.org/10.5194/egusphere-egu2020-20243 |
_version_ |
1801382696993161216 |