BrO, blizzards, and drivers of polar tropospheric ozone depletion events
The source of bromine that drives polar boundary layer ozone depletion events (ODEs) is still open to some debate. While ODEs are generally noted to form under conditions of a shallow stable boundary layer, observations of depleted air under high wind conditions are taken as being transport-related....
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00047732 2023-05-15T13:55:41+02:00 BrO, blizzards, and drivers of polar tropospheric ozone depletion events Jones, A. E. Anderson, P. S. Begoin, M. Brough, N. Hutterli, M. A. Marshall, G. J. Richter, A. Roscoe, H. K. Wolff, E. W. 2009-07 electronic https://doi.org/10.5194/acp-9-4639-2009 https://noa.gwlb.de/receive/cop_mods_00047732 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00047352/acp-9-4639-2009.pdf https://acp.copernicus.org/articles/9/4639/2009/acp-9-4639-2009.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-9-4639-2009 https://noa.gwlb.de/receive/cop_mods_00047732 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00047352/acp-9-4639-2009.pdf https://acp.copernicus.org/articles/9/4639/2009/acp-9-4639-2009.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2009 ftnonlinearchiv https://doi.org/10.5194/acp-9-4639-2009 2022-02-08T22:38:18Z The source of bromine that drives polar boundary layer ozone depletion events (ODEs) is still open to some debate. While ODEs are generally noted to form under conditions of a shallow stable boundary layer, observations of depleted air under high wind conditions are taken as being transport-related. Here we report observations from Antarctica in which an unusually large cloud of BrO formed over the Weddell Sea. The enhanced BrO was observed over Halley station in coastal Antarctica, providing an opportunity to probe the conditions within an active "bromine explosion" event. On this occasion, enhanced BrO and depleted boundary layer ozone coincided with high wind speeds and saline blowing snow. We derive a simple model to consider the environmental conditions that favour ODEs and find two maxima, one at low wind/stable boundary layer and one at high wind speeds with blowing snow. Modelling calculations aiming to reproduce the wider regional or global impacts of ODEs, either via radiative effects or as a halogen source, will also need to account for high wind speed mechanisms. Article in Journal/Newspaper Antarc* Antarctica Weddell Sea Niedersächsisches Online-Archiv NOA Halley Station ENVELOPE(-26.541,-26.541,-75.581,-75.581) Weddell Weddell Sea Atmospheric Chemistry and Physics 9 14 4639 4652 |
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Open Polar |
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Niedersächsisches Online-Archiv NOA |
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language |
English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Jones, A. E. Anderson, P. S. Begoin, M. Brough, N. Hutterli, M. A. Marshall, G. J. Richter, A. Roscoe, H. K. Wolff, E. W. BrO, blizzards, and drivers of polar tropospheric ozone depletion events |
topic_facet |
article Verlagsveröffentlichung |
description |
The source of bromine that drives polar boundary layer ozone depletion events (ODEs) is still open to some debate. While ODEs are generally noted to form under conditions of a shallow stable boundary layer, observations of depleted air under high wind conditions are taken as being transport-related. Here we report observations from Antarctica in which an unusually large cloud of BrO formed over the Weddell Sea. The enhanced BrO was observed over Halley station in coastal Antarctica, providing an opportunity to probe the conditions within an active "bromine explosion" event. On this occasion, enhanced BrO and depleted boundary layer ozone coincided with high wind speeds and saline blowing snow. We derive a simple model to consider the environmental conditions that favour ODEs and find two maxima, one at low wind/stable boundary layer and one at high wind speeds with blowing snow. Modelling calculations aiming to reproduce the wider regional or global impacts of ODEs, either via radiative effects or as a halogen source, will also need to account for high wind speed mechanisms. |
format |
Article in Journal/Newspaper |
author |
Jones, A. E. Anderson, P. S. Begoin, M. Brough, N. Hutterli, M. A. Marshall, G. J. Richter, A. Roscoe, H. K. Wolff, E. W. |
author_facet |
Jones, A. E. Anderson, P. S. Begoin, M. Brough, N. Hutterli, M. A. Marshall, G. J. Richter, A. Roscoe, H. K. Wolff, E. W. |
author_sort |
Jones, A. E. |
title |
BrO, blizzards, and drivers of polar tropospheric ozone depletion events |
title_short |
BrO, blizzards, and drivers of polar tropospheric ozone depletion events |
title_full |
BrO, blizzards, and drivers of polar tropospheric ozone depletion events |
title_fullStr |
BrO, blizzards, and drivers of polar tropospheric ozone depletion events |
title_full_unstemmed |
BrO, blizzards, and drivers of polar tropospheric ozone depletion events |
title_sort |
bro, blizzards, and drivers of polar tropospheric ozone depletion events |
publisher |
Copernicus Publications |
publishDate |
2009 |
url |
https://doi.org/10.5194/acp-9-4639-2009 https://noa.gwlb.de/receive/cop_mods_00047732 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00047352/acp-9-4639-2009.pdf https://acp.copernicus.org/articles/9/4639/2009/acp-9-4639-2009.pdf |
long_lat |
ENVELOPE(-26.541,-26.541,-75.581,-75.581) |
geographic |
Halley Station Weddell Weddell Sea |
geographic_facet |
Halley Station Weddell Weddell Sea |
genre |
Antarc* Antarctica Weddell Sea |
genre_facet |
Antarc* Antarctica Weddell Sea |
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-9-4639-2009 https://noa.gwlb.de/receive/cop_mods_00047732 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00047352/acp-9-4639-2009.pdf https://acp.copernicus.org/articles/9/4639/2009/acp-9-4639-2009.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/acp-9-4639-2009 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
9 |
container_issue |
14 |
container_start_page |
4639 |
op_container_end_page |
4652 |
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1766262491272183808 |