Quantification of the impact in mid-latitudes of chemical ozone depletion in the 1999/2000 Arctic polar vortex prior to the vortex breakup
For the winter 1999/2000 transport of air masses out of the vortex to mid-latitudes and ozone destruction inside and outside the northern polar vortex is studied to quantify the impact of earlier winter (before March) polar ozone destruction on mid-latitude ozone. Nearly 112 000 trajectories are sta...
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ftcopernicus:oai:publications.copernicus.org:acpd3703 2023-05-15T15:04:29+02:00 Quantification of the impact in mid-latitudes of chemical ozone depletion in the 1999/2000 Arctic polar vortex prior to the vortex breakup Koch, G. Wernli, H. Buss, S. Staehelin, J. Peter, T. Liniger, M. A. Meilinger, S. 2018-08-09 application/pdf https://doi.org/10.5194/acpd-4-1911-2004 https://www.atmos-chem-phys-discuss.net/acpd-2004-032/ eng eng doi:10.5194/acpd-4-1911-2004 https://www.atmos-chem-phys-discuss.net/acpd-2004-032/ eISSN: 1680-7324 Text 2018 ftcopernicus https://doi.org/10.5194/acpd-4-1911-2004 2019-12-24T09:59:23Z For the winter 1999/2000 transport of air masses out of the vortex to mid-latitudes and ozone destruction inside and outside the northern polar vortex is studied to quantify the impact of earlier winter (before March) polar ozone destruction on mid-latitude ozone. Nearly 112 000 trajectories are started on 1December1999 on 6 different potential temperature levels between 500–600 K and for a subset of these trajectories photo-chemical box-model calculations are performed. We linked a decline of −0.9% of mid-latitude ozone in this layer occurring in January and February 2000 to ozone destruction inside the vortex and successive transport of these air masses to mid-latitudes. Further, the impact of denitrification, PSC-occurrence and anthropogenic chlorine loading on future stratospheric ozone is determined by applying various scenarios. Lower stratospheric temperatures and denitrification were found to play the most important role in the future evolution of polar ozone depletion. Text Arctic Copernicus Publications: E-Journals Arctic |
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Open Polar |
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Copernicus Publications: E-Journals |
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ftcopernicus |
language |
English |
description |
For the winter 1999/2000 transport of air masses out of the vortex to mid-latitudes and ozone destruction inside and outside the northern polar vortex is studied to quantify the impact of earlier winter (before March) polar ozone destruction on mid-latitude ozone. Nearly 112 000 trajectories are started on 1December1999 on 6 different potential temperature levels between 500–600 K and for a subset of these trajectories photo-chemical box-model calculations are performed. We linked a decline of −0.9% of mid-latitude ozone in this layer occurring in January and February 2000 to ozone destruction inside the vortex and successive transport of these air masses to mid-latitudes. Further, the impact of denitrification, PSC-occurrence and anthropogenic chlorine loading on future stratospheric ozone is determined by applying various scenarios. Lower stratospheric temperatures and denitrification were found to play the most important role in the future evolution of polar ozone depletion. |
format |
Text |
author |
Koch, G. Wernli, H. Buss, S. Staehelin, J. Peter, T. Liniger, M. A. Meilinger, S. |
spellingShingle |
Koch, G. Wernli, H. Buss, S. Staehelin, J. Peter, T. Liniger, M. A. Meilinger, S. Quantification of the impact in mid-latitudes of chemical ozone depletion in the 1999/2000 Arctic polar vortex prior to the vortex breakup |
author_facet |
Koch, G. Wernli, H. Buss, S. Staehelin, J. Peter, T. Liniger, M. A. Meilinger, S. |
author_sort |
Koch, G. |
title |
Quantification of the impact in mid-latitudes of chemical ozone depletion in the 1999/2000 Arctic polar vortex prior to the vortex breakup |
title_short |
Quantification of the impact in mid-latitudes of chemical ozone depletion in the 1999/2000 Arctic polar vortex prior to the vortex breakup |
title_full |
Quantification of the impact in mid-latitudes of chemical ozone depletion in the 1999/2000 Arctic polar vortex prior to the vortex breakup |
title_fullStr |
Quantification of the impact in mid-latitudes of chemical ozone depletion in the 1999/2000 Arctic polar vortex prior to the vortex breakup |
title_full_unstemmed |
Quantification of the impact in mid-latitudes of chemical ozone depletion in the 1999/2000 Arctic polar vortex prior to the vortex breakup |
title_sort |
quantification of the impact in mid-latitudes of chemical ozone depletion in the 1999/2000 arctic polar vortex prior to the vortex breakup |
publishDate |
2018 |
url |
https://doi.org/10.5194/acpd-4-1911-2004 https://www.atmos-chem-phys-discuss.net/acpd-2004-032/ |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
eISSN: 1680-7324 |
op_relation |
doi:10.5194/acpd-4-1911-2004 https://www.atmos-chem-phys-discuss.net/acpd-2004-032/ |
op_doi |
https://doi.org/10.5194/acpd-4-1911-2004 |
_version_ |
1766336255485804544 |