Observational constraints on the kinetics of the ClO-BrO and ClO-ClO ozone loss cycles in the Arctic winter stratosphere
International audience Observations of the balloon‐borne LPMA/DOAS remote sensing instruments performed in the Arctic stratosphere in February 1999 are used to constrain a photochemical model. Measurements of all relevant nitrogen, chlorine, and bromine species indicate that moderate heterogeneous c...
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ftsorbonneuniv:oai:HAL:hal-00398631v1 2024-10-13T14:04:47+00:00 Observational constraints on the kinetics of the ClO-BrO and ClO-ClO ozone loss cycles in the Arctic winter stratosphere Butz, A. Bosch, H. Camy-Peyret, C. Dorf, M. Engel, A. Payen, Sébastien Pfeilsticker, K. Institut für Umweltphysik Heidelberg Universität Heidelberg Heidelberg = Heidelberg University Laboratoire de Physique Moleculaire pour l'Atmosphere et l'Astrophysique (LPMAA) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) Jet Propulsion Laboratory (JPL) NASA-California Institute of Technology (CALTECH) Institut für Atmosphäre und Umwelt Frankfurt/Main (IAU) Goethe-Universität Frankfurt am Main 2007 https://hal.science/hal-00398631 https://hal.science/hal-00398631v1/document https://hal.science/hal-00398631v1/file/Butz_et_al-2007-Geophysical_Research_Letters.pdf https://doi.org/10.1029/2006GL028718 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2006GL028718 doi:10.1029/2006GL028718 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-00398631 Geophysical Research Letters, 2007, 34 (5), pp.L05801. ⟨10.1029/2006GL028718⟩ [PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2007 ftsorbonneuniv https://doi.org/10.1029/2006GL028718 2024-09-29T23:54:57Z International audience Observations of the balloon‐borne LPMA/DOAS remote sensing instruments performed in the Arctic stratosphere in February 1999 are used to constrain a photochemical model. Measurements of all relevant nitrogen, chlorine, and bromine species indicate that moderate heterogeneous chlorine activation occurred in a filament of the Arctic vortex. Model‐measurement comparisons for OClO serve as an indicator of how well various scenarios of the involved reaction kinetics, in particular of the ClO‐BrO and the ClO‐ClO cycles, reproduce the observations. Recent suggestions for the photolysis rate of the ClO dimer, the equilibrium constant between ClO dimer and monomer, the rate of the ClO‐ClO association reaction, and the branching ratio of the ClO‐BrO reaction are consistent with the observations. Formation of an unstable isomer of ClONO2 cannot be reconciled with the observations. Modeled odd oxygen loss rates can be larger by 10% to 20% for the updated reaction kinetics compared to standard Article in Journal/Newspaper Arctic HAL Sorbonne Université Arctic Geophysical Research Letters 34 5 |
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Open Polar |
collection |
HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
[PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Butz, A. Bosch, H. Camy-Peyret, C. Dorf, M. Engel, A. Payen, Sébastien Pfeilsticker, K. Observational constraints on the kinetics of the ClO-BrO and ClO-ClO ozone loss cycles in the Arctic winter stratosphere |
topic_facet |
[PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience Observations of the balloon‐borne LPMA/DOAS remote sensing instruments performed in the Arctic stratosphere in February 1999 are used to constrain a photochemical model. Measurements of all relevant nitrogen, chlorine, and bromine species indicate that moderate heterogeneous chlorine activation occurred in a filament of the Arctic vortex. Model‐measurement comparisons for OClO serve as an indicator of how well various scenarios of the involved reaction kinetics, in particular of the ClO‐BrO and the ClO‐ClO cycles, reproduce the observations. Recent suggestions for the photolysis rate of the ClO dimer, the equilibrium constant between ClO dimer and monomer, the rate of the ClO‐ClO association reaction, and the branching ratio of the ClO‐BrO reaction are consistent with the observations. Formation of an unstable isomer of ClONO2 cannot be reconciled with the observations. Modeled odd oxygen loss rates can be larger by 10% to 20% for the updated reaction kinetics compared to standard |
author2 |
Institut für Umweltphysik Heidelberg Universität Heidelberg Heidelberg = Heidelberg University Laboratoire de Physique Moleculaire pour l'Atmosphere et l'Astrophysique (LPMAA) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) Jet Propulsion Laboratory (JPL) NASA-California Institute of Technology (CALTECH) Institut für Atmosphäre und Umwelt Frankfurt/Main (IAU) Goethe-Universität Frankfurt am Main |
format |
Article in Journal/Newspaper |
author |
Butz, A. Bosch, H. Camy-Peyret, C. Dorf, M. Engel, A. Payen, Sébastien Pfeilsticker, K. |
author_facet |
Butz, A. Bosch, H. Camy-Peyret, C. Dorf, M. Engel, A. Payen, Sébastien Pfeilsticker, K. |
author_sort |
Butz, A. |
title |
Observational constraints on the kinetics of the ClO-BrO and ClO-ClO ozone loss cycles in the Arctic winter stratosphere |
title_short |
Observational constraints on the kinetics of the ClO-BrO and ClO-ClO ozone loss cycles in the Arctic winter stratosphere |
title_full |
Observational constraints on the kinetics of the ClO-BrO and ClO-ClO ozone loss cycles in the Arctic winter stratosphere |
title_fullStr |
Observational constraints on the kinetics of the ClO-BrO and ClO-ClO ozone loss cycles in the Arctic winter stratosphere |
title_full_unstemmed |
Observational constraints on the kinetics of the ClO-BrO and ClO-ClO ozone loss cycles in the Arctic winter stratosphere |
title_sort |
observational constraints on the kinetics of the clo-bro and clo-clo ozone loss cycles in the arctic winter stratosphere |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.science/hal-00398631 https://hal.science/hal-00398631v1/document https://hal.science/hal-00398631v1/file/Butz_et_al-2007-Geophysical_Research_Letters.pdf https://doi.org/10.1029/2006GL028718 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-00398631 Geophysical Research Letters, 2007, 34 (5), pp.L05801. ⟨10.1029/2006GL028718⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2006GL028718 doi:10.1029/2006GL028718 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2006GL028718 |
container_title |
Geophysical Research Letters |
container_volume |
34 |
container_issue |
5 |
_version_ |
1812810439900266496 |