Observations and source investigations of the boundary layer bromine monoxide (BrO) in the Ny-Ålesund Arctic
During polar spring, the presence of reactive bromine in the polar boundary layer is considered to be the main cause of ozone depletion and mercury deposition. However, many uncertainties still remain regarding understanding the mechanisms of the chemical process and source of the bromine. As Arctic...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00041637 2023-05-15T14:58:45+02:00 Observations and source investigations of the boundary layer bromine monoxide (BrO) in the Ny-Ålesund Arctic Luo, Yuhan Si, Fuqi Zhou, Haijin Dou, Ke Liu, Yi Liu, Wenqing 2018-07 electronic https://doi.org/10.5194/acp-18-9789-2018 https://noa.gwlb.de/receive/cop_mods_00041637 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00041257/acp-18-9789-2018.pdf https://acp.copernicus.org/articles/18/9789/2018/acp-18-9789-2018.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-18-9789-2018 https://noa.gwlb.de/receive/cop_mods_00041637 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00041257/acp-18-9789-2018.pdf https://acp.copernicus.org/articles/18/9789/2018/acp-18-9789-2018.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2018 ftnonlinearchiv https://doi.org/10.5194/acp-18-9789-2018 2022-02-08T22:41:29Z During polar spring, the presence of reactive bromine in the polar boundary layer is considered to be the main cause of ozone depletion and mercury deposition. However, many uncertainties still remain regarding understanding the mechanisms of the chemical process and source of the bromine. As Arctic sea ice has recently been dramatically reduced, it is critical to investigate the mechanisms using more accurate measurements with higher temporal and spatial resolution. In this study, a typical process of enhanced bromine and depleted ozone in the Ny-Ålesund boundary layer in late April 2015 was observed by applying ground-based multi-axis differential optical absorption spectroscopy (MAX-DOAS) technique. The results showed that there were bromine monoxide (BrO) slant columns as high as 5.6 × 1014 molec cm−2 above the Kings Bay area on 26 April. Meanwhile, the boundary layer ozone and gaseous elemental mercury (GEM) were synchronously reduced by 85 and 90 %, respectively. Based on the meteorology, sea ice distribution and air mass history, the sea ice in the Kings Bay area, which emerged for only a very short period of time when the enhanced BrO was observed, was considered to be the major source of this bromine enhancement event. The oxidized GEM may be directly deposited onto snow/ice and thereby influence the polar ecosystem. Article in Journal/Newspaper Arctic Ny Ålesund Ny-Ålesund Sea ice Niedersächsisches Online-Archiv NOA Arctic Kings Bay ENVELOPE(-117.760,-117.760,70.731,70.731) Ny-Ålesund Atmospheric Chemistry and Physics 18 13 9789 9801 |
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Niedersächsisches Online-Archiv NOA |
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English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Luo, Yuhan Si, Fuqi Zhou, Haijin Dou, Ke Liu, Yi Liu, Wenqing Observations and source investigations of the boundary layer bromine monoxide (BrO) in the Ny-Ålesund Arctic |
topic_facet |
article Verlagsveröffentlichung |
description |
During polar spring, the presence of reactive bromine in the polar boundary layer is considered to be the main cause of ozone depletion and mercury deposition. However, many uncertainties still remain regarding understanding the mechanisms of the chemical process and source of the bromine. As Arctic sea ice has recently been dramatically reduced, it is critical to investigate the mechanisms using more accurate measurements with higher temporal and spatial resolution. In this study, a typical process of enhanced bromine and depleted ozone in the Ny-Ålesund boundary layer in late April 2015 was observed by applying ground-based multi-axis differential optical absorption spectroscopy (MAX-DOAS) technique. The results showed that there were bromine monoxide (BrO) slant columns as high as 5.6 × 1014 molec cm−2 above the Kings Bay area on 26 April. Meanwhile, the boundary layer ozone and gaseous elemental mercury (GEM) were synchronously reduced by 85 and 90 %, respectively. Based on the meteorology, sea ice distribution and air mass history, the sea ice in the Kings Bay area, which emerged for only a very short period of time when the enhanced BrO was observed, was considered to be the major source of this bromine enhancement event. The oxidized GEM may be directly deposited onto snow/ice and thereby influence the polar ecosystem. |
format |
Article in Journal/Newspaper |
author |
Luo, Yuhan Si, Fuqi Zhou, Haijin Dou, Ke Liu, Yi Liu, Wenqing |
author_facet |
Luo, Yuhan Si, Fuqi Zhou, Haijin Dou, Ke Liu, Yi Liu, Wenqing |
author_sort |
Luo, Yuhan |
title |
Observations and source investigations of the boundary layer bromine monoxide (BrO) in the Ny-Ålesund Arctic |
title_short |
Observations and source investigations of the boundary layer bromine monoxide (BrO) in the Ny-Ålesund Arctic |
title_full |
Observations and source investigations of the boundary layer bromine monoxide (BrO) in the Ny-Ålesund Arctic |
title_fullStr |
Observations and source investigations of the boundary layer bromine monoxide (BrO) in the Ny-Ålesund Arctic |
title_full_unstemmed |
Observations and source investigations of the boundary layer bromine monoxide (BrO) in the Ny-Ålesund Arctic |
title_sort |
observations and source investigations of the boundary layer bromine monoxide (bro) in the ny-ålesund arctic |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/acp-18-9789-2018 https://noa.gwlb.de/receive/cop_mods_00041637 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00041257/acp-18-9789-2018.pdf https://acp.copernicus.org/articles/18/9789/2018/acp-18-9789-2018.pdf |
long_lat |
ENVELOPE(-117.760,-117.760,70.731,70.731) |
geographic |
Arctic Kings Bay Ny-Ålesund |
geographic_facet |
Arctic Kings Bay Ny-Ålesund |
genre |
Arctic Ny Ålesund Ny-Ålesund Sea ice |
genre_facet |
Arctic Ny Ålesund Ny-Ålesund Sea ice |
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-18-9789-2018 https://noa.gwlb.de/receive/cop_mods_00041637 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00041257/acp-18-9789-2018.pdf https://acp.copernicus.org/articles/18/9789/2018/acp-18-9789-2018.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-18-9789-2018 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
18 |
container_issue |
13 |
container_start_page |
9789 |
op_container_end_page |
9801 |
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1766330883168534528 |