Iodine monoxide in the Antarctic snowpack
Recent ground-based and space borne observations suggest the presence of significant amounts of iodine monoxide in the boundary layer of Antarctica, which are expected to have an impact on the ozone budget and might contribute to the formation of new airborne particles. So far, the source of these i...
Published in: | Atmospheric Chemistry and Physics |
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00047345 2023-05-15T13:55:41+02:00 Iodine monoxide in the Antarctic snowpack Frieß, U. Deutschmann, T. Gilfedder, B. S. Weller, R. Platt, U. 2010-03 electronic https://doi.org/10.5194/acp-10-2439-2010 https://noa.gwlb.de/receive/cop_mods_00047345 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00046965/acp-10-2439-2010.pdf https://acp.copernicus.org/articles/10/2439/2010/acp-10-2439-2010.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-10-2439-2010 https://noa.gwlb.de/receive/cop_mods_00047345 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00046965/acp-10-2439-2010.pdf https://acp.copernicus.org/articles/10/2439/2010/acp-10-2439-2010.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2010 ftnonlinearchiv https://doi.org/10.5194/acp-10-2439-2010 2022-02-08T22:38:30Z Recent ground-based and space borne observations suggest the presence of significant amounts of iodine monoxide in the boundary layer of Antarctica, which are expected to have an impact on the ozone budget and might contribute to the formation of new airborne particles. So far, the source of these iodine radicals has been unknown. This paper presents long-term measurements of iodine monoxide at the German Antarctic research station Neumayer, which indicate that high IO concentrations in the order of 50 ppb are present in the snow interstitial air. The measurements have been performed using multi-axis differential optical absorption spectroscopy (MAX-DOAS). Using a coupled atmosphere – snowpack radiative transfer model, the comparison of the signals observed from scattered skylight and from light reflected by the snowpack yields several ppb of iodine monoxide in the upper layers of the sunlit snowpack throughout the year. Snow pit samples from Neumayer Station contain up to 700 ng/l of total iodine, representing a sufficient reservoir for these extraordinarily high IO concentrations. Article in Journal/Newspaper Antarc* Antarctic Antarctica Niedersächsisches Online-Archiv NOA Antarctic Neumayer Neumayer Station The Antarctic Atmospheric Chemistry and Physics 10 5 2439 2456 |
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Niedersächsisches Online-Archiv NOA |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Frieß, U. Deutschmann, T. Gilfedder, B. S. Weller, R. Platt, U. Iodine monoxide in the Antarctic snowpack |
topic_facet |
article Verlagsveröffentlichung |
description |
Recent ground-based and space borne observations suggest the presence of significant amounts of iodine monoxide in the boundary layer of Antarctica, which are expected to have an impact on the ozone budget and might contribute to the formation of new airborne particles. So far, the source of these iodine radicals has been unknown. This paper presents long-term measurements of iodine monoxide at the German Antarctic research station Neumayer, which indicate that high IO concentrations in the order of 50 ppb are present in the snow interstitial air. The measurements have been performed using multi-axis differential optical absorption spectroscopy (MAX-DOAS). Using a coupled atmosphere – snowpack radiative transfer model, the comparison of the signals observed from scattered skylight and from light reflected by the snowpack yields several ppb of iodine monoxide in the upper layers of the sunlit snowpack throughout the year. Snow pit samples from Neumayer Station contain up to 700 ng/l of total iodine, representing a sufficient reservoir for these extraordinarily high IO concentrations. |
format |
Article in Journal/Newspaper |
author |
Frieß, U. Deutschmann, T. Gilfedder, B. S. Weller, R. Platt, U. |
author_facet |
Frieß, U. Deutschmann, T. Gilfedder, B. S. Weller, R. Platt, U. |
author_sort |
Frieß, U. |
title |
Iodine monoxide in the Antarctic snowpack |
title_short |
Iodine monoxide in the Antarctic snowpack |
title_full |
Iodine monoxide in the Antarctic snowpack |
title_fullStr |
Iodine monoxide in the Antarctic snowpack |
title_full_unstemmed |
Iodine monoxide in the Antarctic snowpack |
title_sort |
iodine monoxide in the antarctic snowpack |
publisher |
Copernicus Publications |
publishDate |
2010 |
url |
https://doi.org/10.5194/acp-10-2439-2010 https://noa.gwlb.de/receive/cop_mods_00047345 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00046965/acp-10-2439-2010.pdf https://acp.copernicus.org/articles/10/2439/2010/acp-10-2439-2010.pdf |
geographic |
Antarctic Neumayer Neumayer Station The Antarctic |
geographic_facet |
Antarctic Neumayer Neumayer Station The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
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-10-2439-2010 https://noa.gwlb.de/receive/cop_mods_00047345 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00046965/acp-10-2439-2010.pdf https://acp.copernicus.org/articles/10/2439/2010/acp-10-2439-2010.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/acp-10-2439-2010 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
10 |
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5 |
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2439 |
op_container_end_page |
2456 |
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1766262494360240128 |