Satellite observations of long range transport of a large BrO plume in the Arctic
Ozone Depletion Events (ODE) during polar springtime are a well known phenomenon in the Arctic and Antarctic boundary layer. They are caused by the catalytic destruction of ozone by halogens producing reactive halogen oxides like bromine monoxide (BrO). The key halogen bromine can be rapidly transfe...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00047121 2023-05-15T13:55:41+02:00 Satellite observations of long range transport of a large BrO plume in the Arctic Begoin, M. Richter, A. Weber, M. Kaleschke, L. Tian-Kunze, X. Stohl, A. Theys, N. Burrows, J. P. 2010-07 electronic https://doi.org/10.5194/acp-10-6515-2010 https://noa.gwlb.de/receive/cop_mods_00047121 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00046741/acp-10-6515-2010.pdf https://acp.copernicus.org/articles/10/6515/2010/acp-10-6515-2010.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-10-6515-2010 https://noa.gwlb.de/receive/cop_mods_00047121 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00046741/acp-10-6515-2010.pdf https://acp.copernicus.org/articles/10/6515/2010/acp-10-6515-2010.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2010 ftnonlinearchiv https://doi.org/10.5194/acp-10-6515-2010 2022-02-08T22:38:36Z Ozone Depletion Events (ODE) during polar springtime are a well known phenomenon in the Arctic and Antarctic boundary layer. They are caused by the catalytic destruction of ozone by halogens producing reactive halogen oxides like bromine monoxide (BrO). The key halogen bromine can be rapidly transferred into the gas phase in an autocatalytic process – the so called "Bromine Explosion". However, the exact mechanism, which leads to an initial bromine release as well as the influence of transport and chemical processes on BrO, is still not clearly understood. In this study, BrO measurements from the satellite instrument GOME-2 are used together with model calculations with the dispersion model FLEXPART to study an arctic BrO event in March 2007, which could be tracked over several days and a large area. Full BrO activation was observed within one day east of Siberia with subsequent transport to Hudson Bay. The event was linked to a cyclone with very high surface wind speeds, which could have been involved in the production and lifting of aerosols or blowing snow. Considering the short life time of BrO, transported aerosols or snow can also provide the surface for BrO recycling within the plume for several days. The evolution of the BrO plume could be reproduced by FLEXPART simulations of a passive tracer indicating that the activated air mass was transported all the way from Siberia to Hudson Bay. To localise the most probable transport height, model runs initialised in different heights have been performed showing similar transport patterns throughout the troposphere but best agreement with the measurements between the surface and 3 km. The influence of changes in tropopause height on measured BrO values has been considered, but cannot completely explain the observed high BrO values. Backward trajectories from the area of BrO initialisation show upward lifting from the surface up to 3 km and no indication for intrusion of stratospheric air. These observations are consistent with a scenario in which bromine in the air mass was activated on the surface within the cyclone, lifted upwards and transported over several thousand kilometres to Hudson Bay. Article in Journal/Newspaper Antarc* Antarctic Arctic Hudson Bay Siberia Niedersächsisches Online-Archiv NOA Antarctic Arctic Hudson Hudson Bay Atmospheric Chemistry and Physics 10 14 6515 6526 |
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Niedersächsisches Online-Archiv NOA |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Begoin, M. Richter, A. Weber, M. Kaleschke, L. Tian-Kunze, X. Stohl, A. Theys, N. Burrows, J. P. Satellite observations of long range transport of a large BrO plume in the Arctic |
topic_facet |
article Verlagsveröffentlichung |
description |
Ozone Depletion Events (ODE) during polar springtime are a well known phenomenon in the Arctic and Antarctic boundary layer. They are caused by the catalytic destruction of ozone by halogens producing reactive halogen oxides like bromine monoxide (BrO). The key halogen bromine can be rapidly transferred into the gas phase in an autocatalytic process – the so called "Bromine Explosion". However, the exact mechanism, which leads to an initial bromine release as well as the influence of transport and chemical processes on BrO, is still not clearly understood. In this study, BrO measurements from the satellite instrument GOME-2 are used together with model calculations with the dispersion model FLEXPART to study an arctic BrO event in March 2007, which could be tracked over several days and a large area. Full BrO activation was observed within one day east of Siberia with subsequent transport to Hudson Bay. The event was linked to a cyclone with very high surface wind speeds, which could have been involved in the production and lifting of aerosols or blowing snow. Considering the short life time of BrO, transported aerosols or snow can also provide the surface for BrO recycling within the plume for several days. The evolution of the BrO plume could be reproduced by FLEXPART simulations of a passive tracer indicating that the activated air mass was transported all the way from Siberia to Hudson Bay. To localise the most probable transport height, model runs initialised in different heights have been performed showing similar transport patterns throughout the troposphere but best agreement with the measurements between the surface and 3 km. The influence of changes in tropopause height on measured BrO values has been considered, but cannot completely explain the observed high BrO values. Backward trajectories from the area of BrO initialisation show upward lifting from the surface up to 3 km and no indication for intrusion of stratospheric air. These observations are consistent with a scenario in which bromine in the air mass was activated on the surface within the cyclone, lifted upwards and transported over several thousand kilometres to Hudson Bay. |
format |
Article in Journal/Newspaper |
author |
Begoin, M. Richter, A. Weber, M. Kaleschke, L. Tian-Kunze, X. Stohl, A. Theys, N. Burrows, J. P. |
author_facet |
Begoin, M. Richter, A. Weber, M. Kaleschke, L. Tian-Kunze, X. Stohl, A. Theys, N. Burrows, J. P. |
author_sort |
Begoin, M. |
title |
Satellite observations of long range transport of a large BrO plume in the Arctic |
title_short |
Satellite observations of long range transport of a large BrO plume in the Arctic |
title_full |
Satellite observations of long range transport of a large BrO plume in the Arctic |
title_fullStr |
Satellite observations of long range transport of a large BrO plume in the Arctic |
title_full_unstemmed |
Satellite observations of long range transport of a large BrO plume in the Arctic |
title_sort |
satellite observations of long range transport of a large bro plume in the arctic |
publisher |
Copernicus Publications |
publishDate |
2010 |
url |
https://doi.org/10.5194/acp-10-6515-2010 https://noa.gwlb.de/receive/cop_mods_00047121 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00046741/acp-10-6515-2010.pdf https://acp.copernicus.org/articles/10/6515/2010/acp-10-6515-2010.pdf |
geographic |
Antarctic Arctic Hudson Hudson Bay |
geographic_facet |
Antarctic Arctic Hudson Hudson Bay |
genre |
Antarc* Antarctic Arctic Hudson Bay Siberia |
genre_facet |
Antarc* Antarctic Arctic Hudson Bay Siberia |
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-10-6515-2010 https://noa.gwlb.de/receive/cop_mods_00047121 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00046741/acp-10-6515-2010.pdf https://acp.copernicus.org/articles/10/6515/2010/acp-10-6515-2010.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/acp-10-6515-2010 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
10 |
container_issue |
14 |
container_start_page |
6515 |
op_container_end_page |
6526 |
_version_ |
1766262495278792704 |