Model simulations of the chemical and aerosol microphysical evolution of the Sarychev Peak 2009 (SO2, HCl, Particles) eruption cloud compared to in situ and satellite observations
International audience Volcanic eruptions impact climate through the injection of sulfur dioxide (SO2), which is oxidized to form sulfuric acid particles that enhance the stratospheric aerosol optical depth (SAOD). However, uncertainties remain in the atmospheric and climatic impacts due to limitati...
Published in: | Atmospheric Chemistry and Physics |
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Main Authors: | , , , , , , , |
Other Authors: | , , , , , , , , , , , |
Format: | Conference Object |
Language: | English |
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HAL CCSD
2018
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Online Access: | https://insu.hal.science/insu-03565545 https://doi.org/10.5194/acp-18-3223-2018 |
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ftobservparis:oai:HAL:insu-03565545v1 |
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openpolar |
institution |
Open Polar |
collection |
Archive de l'Observatoire de Paris (HAL) |
op_collection_id |
ftobservparis |
language |
English |
topic |
Volcanology Atmospheric effects Volcano/climate interactions Extreme events Volcanic effects [SDU]Sciences of the Universe [physics] |
spellingShingle |
Volcanology Atmospheric effects Volcano/climate interactions Extreme events Volcanic effects [SDU]Sciences of the Universe [physics] Roberts, Tjarda, J Lurton, Thibaut Jegou, Fabrice Berthet, Gwenaël Renard, Jean-Baptiste Clarisse, Lieven Schmidt, Anja Brogniez, Colette Model simulations of the chemical and aerosol microphysical evolution of the Sarychev Peak 2009 (SO2, HCl, Particles) eruption cloud compared to in situ and satellite observations |
topic_facet |
Volcanology Atmospheric effects Volcano/climate interactions Extreme events Volcanic effects [SDU]Sciences of the Universe [physics] |
description |
International audience Volcanic eruptions impact climate through the injection of sulfur dioxide (SO2), which is oxidized to form sulfuric acid particles that enhance the stratospheric aerosol optical depth (SAOD). However, uncertainties remain in the atmospheric and climatic impacts due to limitations in model representations of particle microphysics and size, whilst biases have been identified in satellite estimates of post-eruption SAOD. In addition, some eruptions such as Sarychev Peak 2009 co-injected hydrogen chloride (HCl) alongside SO2, whose potential stratospheric chemistry impacts have not been investigated to date. Lurton et al. ACP (2018) present a study of the stratospheric SO2-particle-HCl processing and impacts from the Sarychev Peak eruption, using the CESM1-WACCM-CARMA sectional aerosol microphysics model (with no a priori assumption on particle size). The eruption injected 0.9 Tg of SO2 into the UTLS, enhancing the aerosol load in the Northern Hemisphere. The post-eruption volcanic SO2 is well reproduced by the model compared to IASI satellite data. Co-injection of 27 Gg HCl causes a lengthening of the SO2 lifetime and a slight delay in the formation of aerosols, and acts to enhance the destruction of stratospheric ozone and mono-nitrogen oxides (NOx) compared to the simulation with volcanic SO2 only. We highlight the need to account for volcanic halogen chemistry when simulating the chemistry-climate impacts of eruptions. The model-simulated evolution of effective radius reflects new particle formation followed by particle growth to reach up to 0.2 μm on zonal average. Comparison of the model-simulated particle number and size distributions to balloon-borne in situ stratospheric observations over Kiruna, Sweden (Aug-Sept 2009), and Laramie, USA, (June, Nov, 2009) show good agreement and quantitatively confirm the post-eruption particle enhancement. We show that the model-simulated SAOD is consistent with that derived from OSIRIS when both the saturation bias of OSIRIS and the fact that ... |
author2 |
Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E) Observatoire des Sciences de l'Univers en région Centre (OSUC) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales Paris (CNES) Spectroscopy, Quantum Chemistry and Atmospheric Remote Sensing (SQUARES) Université libre de Bruxelles (ULB) Institute for Climate and Atmospheric Science Leeds (ICAS) School of Earth and Environment Leeds (SEE) University of Leeds-University of Leeds Laboratoire d’Optique Atmosphérique - UMR 8518 (LOA) Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lille-Centre National de la Recherche Scientifique (CNRS) |
format |
Conference Object |
author |
Roberts, Tjarda, J Lurton, Thibaut Jegou, Fabrice Berthet, Gwenaël Renard, Jean-Baptiste Clarisse, Lieven Schmidt, Anja Brogniez, Colette |
author_facet |
Roberts, Tjarda, J Lurton, Thibaut Jegou, Fabrice Berthet, Gwenaël Renard, Jean-Baptiste Clarisse, Lieven Schmidt, Anja Brogniez, Colette |
author_sort |
Roberts, Tjarda, J |
title |
Model simulations of the chemical and aerosol microphysical evolution of the Sarychev Peak 2009 (SO2, HCl, Particles) eruption cloud compared to in situ and satellite observations |
title_short |
Model simulations of the chemical and aerosol microphysical evolution of the Sarychev Peak 2009 (SO2, HCl, Particles) eruption cloud compared to in situ and satellite observations |
title_full |
Model simulations of the chemical and aerosol microphysical evolution of the Sarychev Peak 2009 (SO2, HCl, Particles) eruption cloud compared to in situ and satellite observations |
title_fullStr |
Model simulations of the chemical and aerosol microphysical evolution of the Sarychev Peak 2009 (SO2, HCl, Particles) eruption cloud compared to in situ and satellite observations |
title_full_unstemmed |
Model simulations of the chemical and aerosol microphysical evolution of the Sarychev Peak 2009 (SO2, HCl, Particles) eruption cloud compared to in situ and satellite observations |
title_sort |
model simulations of the chemical and aerosol microphysical evolution of the sarychev peak 2009 (so2, hcl, particles) eruption cloud compared to in situ and satellite observations |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://insu.hal.science/insu-03565545 https://doi.org/10.5194/acp-18-3223-2018 |
op_coverage |
Washington, United States |
genre |
Kiruna |
genre_facet |
Kiruna |
op_source |
American Geophysical Union Fall Meeting 2018 https://insu.hal.science/insu-03565545 American Geophysical Union Fall Meeting 2018, Dec 2018, Washington, United States. ⟨10.5194/acp-18-3223-2018⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-18-3223-2018 insu-03565545 https://insu.hal.science/insu-03565545 BIBCODE: 2018AGUFMGC13E1065R doi:10.5194/acp-18-3223-2018 |
op_doi |
https://doi.org/10.5194/acp-18-3223-2018 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
18 |
container_issue |
5 |
container_start_page |
3223 |
op_container_end_page |
3247 |
_version_ |
1810454868668710912 |
spelling |
ftobservparis:oai:HAL:insu-03565545v1 2024-09-15T18:16:52+00:00 Model simulations of the chemical and aerosol microphysical evolution of the Sarychev Peak 2009 (SO2, HCl, Particles) eruption cloud compared to in situ and satellite observations Roberts, Tjarda, J Lurton, Thibaut Jegou, Fabrice Berthet, Gwenaël Renard, Jean-Baptiste Clarisse, Lieven Schmidt, Anja Brogniez, Colette Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E) Observatoire des Sciences de l'Univers en région Centre (OSUC) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales Paris (CNES) Spectroscopy, Quantum Chemistry and Atmospheric Remote Sensing (SQUARES) Université libre de Bruxelles (ULB) Institute for Climate and Atmospheric Science Leeds (ICAS) School of Earth and Environment Leeds (SEE) University of Leeds-University of Leeds Laboratoire d’Optique Atmosphérique - UMR 8518 (LOA) Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lille-Centre National de la Recherche Scientifique (CNRS) Washington, United States 2018-12-10 https://insu.hal.science/insu-03565545 https://doi.org/10.5194/acp-18-3223-2018 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-18-3223-2018 insu-03565545 https://insu.hal.science/insu-03565545 BIBCODE: 2018AGUFMGC13E1065R doi:10.5194/acp-18-3223-2018 American Geophysical Union Fall Meeting 2018 https://insu.hal.science/insu-03565545 American Geophysical Union Fall Meeting 2018, Dec 2018, Washington, United States. ⟨10.5194/acp-18-3223-2018⟩ Volcanology Atmospheric effects Volcano/climate interactions Extreme events Volcanic effects [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/conferenceObject Conference papers 2018 ftobservparis https://doi.org/10.5194/acp-18-3223-2018 2024-06-25T00:01:25Z International audience Volcanic eruptions impact climate through the injection of sulfur dioxide (SO2), which is oxidized to form sulfuric acid particles that enhance the stratospheric aerosol optical depth (SAOD). However, uncertainties remain in the atmospheric and climatic impacts due to limitations in model representations of particle microphysics and size, whilst biases have been identified in satellite estimates of post-eruption SAOD. In addition, some eruptions such as Sarychev Peak 2009 co-injected hydrogen chloride (HCl) alongside SO2, whose potential stratospheric chemistry impacts have not been investigated to date. Lurton et al. ACP (2018) present a study of the stratospheric SO2-particle-HCl processing and impacts from the Sarychev Peak eruption, using the CESM1-WACCM-CARMA sectional aerosol microphysics model (with no a priori assumption on particle size). The eruption injected 0.9 Tg of SO2 into the UTLS, enhancing the aerosol load in the Northern Hemisphere. The post-eruption volcanic SO2 is well reproduced by the model compared to IASI satellite data. Co-injection of 27 Gg HCl causes a lengthening of the SO2 lifetime and a slight delay in the formation of aerosols, and acts to enhance the destruction of stratospheric ozone and mono-nitrogen oxides (NOx) compared to the simulation with volcanic SO2 only. We highlight the need to account for volcanic halogen chemistry when simulating the chemistry-climate impacts of eruptions. The model-simulated evolution of effective radius reflects new particle formation followed by particle growth to reach up to 0.2 μm on zonal average. Comparison of the model-simulated particle number and size distributions to balloon-borne in situ stratospheric observations over Kiruna, Sweden (Aug-Sept 2009), and Laramie, USA, (June, Nov, 2009) show good agreement and quantitatively confirm the post-eruption particle enhancement. We show that the model-simulated SAOD is consistent with that derived from OSIRIS when both the saturation bias of OSIRIS and the fact that ... Conference Object Kiruna Archive de l'Observatoire de Paris (HAL) Atmospheric Chemistry and Physics 18 5 3223 3247 |