Chlorine partitioning in the lowermost Arctic vortex during the cold winter 2015/2016
Activated chlorine compounds in the polar winter stratosphere drive catalytic cycles that deplete ozone and methane, whose abundances are highly relevant to the evolution of global climate. The present work introduces a novel dataset of in situ measurements of relevant chlorine species in the lowerm...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00000194 2023-05-15T14:58:38+02:00 Chlorine partitioning in the lowermost Arctic vortex during the cold winter 2015/2016 Marsing, Andreas Jurkat-Witschas, Tina Grooß, Jens-Uwe Kaufmann, Stefan Heller, Romy Engel, Andreas Hoor, Peter Krause, Jens Voigt, Christiane 2019-08 electronic https://doi.org/10.5194/acp-19-10757-2019 https://noa.gwlb.de/receive/cop_mods_00000194 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00000167/acp-19-10757-2019.pdf https://acp.copernicus.org/articles/19/10757/2019/acp-19-10757-2019.pdf eng eng Copernicus Publications Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-19-10757-2019 https://noa.gwlb.de/receive/cop_mods_00000194 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00000167/acp-19-10757-2019.pdf https://acp.copernicus.org/articles/19/10757/2019/acp-19-10757-2019.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2019 ftnonlinearchiv https://doi.org/10.5194/acp-19-10757-2019 2022-02-08T23:02:26Z Activated chlorine compounds in the polar winter stratosphere drive catalytic cycles that deplete ozone and methane, whose abundances are highly relevant to the evolution of global climate. The present work introduces a novel dataset of in situ measurements of relevant chlorine species in the lowermost Arctic stratosphere from the aircraft mission POLSTRACC–GW-LCYCLE–SALSA during winter 2015/2016. The major stages of chemical evolution of the lower polar vortex are presented in a consistent series of high-resolution mass spectrometric observations of HCl and ClONO2. Simultaneous measurements of CFC-12 are used to derive total inorganic chlorine (Cly) and active chlorine (ClOx). The new data highlight an altitude dependence of the pathway for chlorine deactivation in the lowermost vortex with HCl dominating below the 380 K isentropic surface and ClONO2 prevailing above. Further, we show that the Chemical Lagrangian Model of the Stratosphere (CLaMS) is generally able to reproduce the chemical evolution of the lower polar vortex chlorine budget, except for a bias in HCl concentrations. The model is used to relate local measurements to the vortex-wide evolution. The results are aimed at fostering our understanding of the climate impact of chlorine chemistry, providing new observational data to complement satellite data and assess model performance in the climate-sensitive upper troposphere and lower stratosphere region. Article in Journal/Newspaper Arctic Niedersächsisches Online-Archiv NOA Arctic Atmospheric Chemistry and Physics 19 16 10757 10772 |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Marsing, Andreas Jurkat-Witschas, Tina Grooß, Jens-Uwe Kaufmann, Stefan Heller, Romy Engel, Andreas Hoor, Peter Krause, Jens Voigt, Christiane Chlorine partitioning in the lowermost Arctic vortex during the cold winter 2015/2016 |
topic_facet |
article Verlagsveröffentlichung |
description |
Activated chlorine compounds in the polar winter stratosphere drive catalytic cycles that deplete ozone and methane, whose abundances are highly relevant to the evolution of global climate. The present work introduces a novel dataset of in situ measurements of relevant chlorine species in the lowermost Arctic stratosphere from the aircraft mission POLSTRACC–GW-LCYCLE–SALSA during winter 2015/2016. The major stages of chemical evolution of the lower polar vortex are presented in a consistent series of high-resolution mass spectrometric observations of HCl and ClONO2. Simultaneous measurements of CFC-12 are used to derive total inorganic chlorine (Cly) and active chlorine (ClOx). The new data highlight an altitude dependence of the pathway for chlorine deactivation in the lowermost vortex with HCl dominating below the 380 K isentropic surface and ClONO2 prevailing above. Further, we show that the Chemical Lagrangian Model of the Stratosphere (CLaMS) is generally able to reproduce the chemical evolution of the lower polar vortex chlorine budget, except for a bias in HCl concentrations. The model is used to relate local measurements to the vortex-wide evolution. The results are aimed at fostering our understanding of the climate impact of chlorine chemistry, providing new observational data to complement satellite data and assess model performance in the climate-sensitive upper troposphere and lower stratosphere region. |
format |
Article in Journal/Newspaper |
author |
Marsing, Andreas Jurkat-Witschas, Tina Grooß, Jens-Uwe Kaufmann, Stefan Heller, Romy Engel, Andreas Hoor, Peter Krause, Jens Voigt, Christiane |
author_facet |
Marsing, Andreas Jurkat-Witschas, Tina Grooß, Jens-Uwe Kaufmann, Stefan Heller, Romy Engel, Andreas Hoor, Peter Krause, Jens Voigt, Christiane |
author_sort |
Marsing, Andreas |
title |
Chlorine partitioning in the lowermost Arctic vortex during the cold winter 2015/2016 |
title_short |
Chlorine partitioning in the lowermost Arctic vortex during the cold winter 2015/2016 |
title_full |
Chlorine partitioning in the lowermost Arctic vortex during the cold winter 2015/2016 |
title_fullStr |
Chlorine partitioning in the lowermost Arctic vortex during the cold winter 2015/2016 |
title_full_unstemmed |
Chlorine partitioning in the lowermost Arctic vortex during the cold winter 2015/2016 |
title_sort |
chlorine partitioning in the lowermost arctic vortex during the cold winter 2015/2016 |
publisher |
Copernicus Publications |
publishDate |
2019 |
url |
https://doi.org/10.5194/acp-19-10757-2019 https://noa.gwlb.de/receive/cop_mods_00000194 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00000167/acp-19-10757-2019.pdf https://acp.copernicus.org/articles/19/10757/2019/acp-19-10757-2019.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-19-10757-2019 https://noa.gwlb.de/receive/cop_mods_00000194 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00000167/acp-19-10757-2019.pdf https://acp.copernicus.org/articles/19/10757/2019/acp-19-10757-2019.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/acp-19-10757-2019 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
19 |
container_issue |
16 |
container_start_page |
10757 |
op_container_end_page |
10772 |
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1766330764122652672 |