Back-transport of sulfur species in the high-southern latitudes
Poster To interpret polar ice core records of sulfate and methanesulfonic acid (MSA), a good understanding of the processes involved in dimethylsulfide (DMS) oxidation is needed. In particular, the signification of changes in the MSA to non-sea-salt sulfate ratio remains unclear. In cold environment...
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HAL CCSD
2003
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Online Access: | https://hal.science/hal-00203698 |
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ftsorbonneuniv:oai:HAL:hal-00203698v1 |
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openpolar |
institution |
Open Polar |
collection |
HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph] [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] |
spellingShingle |
[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph] [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] Cosme, Emmanuel Hourdin, F. Legrand, Michel Genthon, Christophe Martinerie, Patricia Back-transport of sulfur species in the high-southern latitudes |
topic_facet |
[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph] [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] |
description |
Poster To interpret polar ice core records of sulfate and methanesulfonic acid (MSA), a good understanding of the processes involved in dimethylsulfide (DMS) oxidation is needed. In particular, the signification of changes in the MSA to non-sea-salt sulfate ratio remains unclear. In cold environment, DMS oxidation through the addition channel, partly leading to MSA, prevails over the abstraction channel that does not yield MSA. However, at several Antarctic stations, the MSA to non-sea-salt sulfate ratio is found higher in the summer (warmer) season than in winter. To improve the interpretation of the MSA to non-sea-salt sulfate ratio, we wish to locate the sources contributing to the sulfur species in Antarctica and to identify how they change with season. To do this, we use the Laboratoire de Météorologie Dynamique (CNRS, Paris, France) Atmospheric General Circulation Model with an imbedded sulfur chemistry module (Cosme et al., Sulfur cycle in the high southern latitudes in the LMD-ZT General Circulation Model, JGR 107). The climate /chemistry model is first run forward to archive climate and chemistry parameters which affect the sulfur species. These parameters are then used to run backward an adjoint of the model, thus providing an inverse history of transport and chemistry. We will first present the adjoint transport and chemistry equations. Then we will show and discuss preliminary results related to the interpretation of the MSA to non-sea-salt sulfate ratio in the Antarctic region. |
author2 |
Laboratoire des Écoulements Géophysiques et Industriels Grenoble (LEGI) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS) Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-École des Ponts ParisTech (ENPC)-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) Institut de Biologie Moléculaire des Plantes (IBMP) Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'Ingénierie des Matériaux (LIM) Centre National de la Recherche Scientifique (CNRS) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Conference Object |
author |
Cosme, Emmanuel Hourdin, F. Legrand, Michel Genthon, Christophe Martinerie, Patricia |
author_facet |
Cosme, Emmanuel Hourdin, F. Legrand, Michel Genthon, Christophe Martinerie, Patricia |
author_sort |
Cosme, Emmanuel |
title |
Back-transport of sulfur species in the high-southern latitudes |
title_short |
Back-transport of sulfur species in the high-southern latitudes |
title_full |
Back-transport of sulfur species in the high-southern latitudes |
title_fullStr |
Back-transport of sulfur species in the high-southern latitudes |
title_full_unstemmed |
Back-transport of sulfur species in the high-southern latitudes |
title_sort |
back-transport of sulfur species in the high-southern latitudes |
publisher |
HAL CCSD |
publishDate |
2003 |
url |
https://hal.science/hal-00203698 |
op_coverage |
Nice, France |
genre |
Antarc* Antarctic Antarctica ice core |
genre_facet |
Antarc* Antarctic Antarctica ice core |
op_source |
XXVIIIth General Assembly of the European Geophysical Society (EGS) https://hal.science/hal-00203698 XXVIIIth General Assembly of the European Geophysical Society (EGS), Apr 2003, Nice, France |
op_relation |
hal-00203698 https://hal.science/hal-00203698 |
op_rights |
http://creativecommons.org/licenses/by/ |
_version_ |
1810494870206283776 |
spelling |
ftsorbonneuniv:oai:HAL:hal-00203698v1 2024-09-15T17:46:36+00:00 Back-transport of sulfur species in the high-southern latitudes Cosme, Emmanuel Hourdin, F. Legrand, Michel Genthon, Christophe Martinerie, Patricia Laboratoire des Écoulements Géophysiques et Industriels Grenoble (LEGI) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS) Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-École des Ponts ParisTech (ENPC)-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) Institut de Biologie Moléculaire des Plantes (IBMP) Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'Ingénierie des Matériaux (LIM) Centre National de la Recherche Scientifique (CNRS) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Nice, France 2003-04 https://hal.science/hal-00203698 en eng HAL CCSD hal-00203698 https://hal.science/hal-00203698 http://creativecommons.org/licenses/by/ XXVIIIth General Assembly of the European Geophysical Society (EGS) https://hal.science/hal-00203698 XXVIIIth General Assembly of the European Geophysical Society (EGS), Apr 2003, Nice, France [PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph] [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] info:eu-repo/semantics/conferenceObject Conference papers 2003 ftsorbonneuniv 2024-08-01T23:46:53Z Poster To interpret polar ice core records of sulfate and methanesulfonic acid (MSA), a good understanding of the processes involved in dimethylsulfide (DMS) oxidation is needed. In particular, the signification of changes in the MSA to non-sea-salt sulfate ratio remains unclear. In cold environment, DMS oxidation through the addition channel, partly leading to MSA, prevails over the abstraction channel that does not yield MSA. However, at several Antarctic stations, the MSA to non-sea-salt sulfate ratio is found higher in the summer (warmer) season than in winter. To improve the interpretation of the MSA to non-sea-salt sulfate ratio, we wish to locate the sources contributing to the sulfur species in Antarctica and to identify how they change with season. To do this, we use the Laboratoire de Météorologie Dynamique (CNRS, Paris, France) Atmospheric General Circulation Model with an imbedded sulfur chemistry module (Cosme et al., Sulfur cycle in the high southern latitudes in the LMD-ZT General Circulation Model, JGR 107). The climate /chemistry model is first run forward to archive climate and chemistry parameters which affect the sulfur species. These parameters are then used to run backward an adjoint of the model, thus providing an inverse history of transport and chemistry. We will first present the adjoint transport and chemistry equations. Then we will show and discuss preliminary results related to the interpretation of the MSA to non-sea-salt sulfate ratio in the Antarctic region. Conference Object Antarc* Antarctic Antarctica ice core HAL Sorbonne Université |