Surface ozone depletion episodes in the Arctic and Antarctic from historical ozonesonde records
Episodes of ozone depletion in the lowermost Arctic atmosphere (0--2 km) at polar sunrise have been intensively studied at Alert, Canada, and are thought to result from catalytic reactions involving bromine. Recent observations of high concentrations of tropospheric BrO over large areas of the Arcti...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00049483 2023-05-15T13:54:47+02:00 Surface ozone depletion episodes in the Arctic and Antarctic from historical ozonesonde records Tarasick, D. W. Bottenheim, J. W. 2002-08 electronic https://doi.org/10.5194/acp-2-197-2002 https://noa.gwlb.de/receive/cop_mods_00049483 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00049103/acp-2-197-2002.pdf https://acp.copernicus.org/articles/2/197/2002/acp-2-197-2002.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-2-197-2002 https://noa.gwlb.de/receive/cop_mods_00049483 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00049103/acp-2-197-2002.pdf https://acp.copernicus.org/articles/2/197/2002/acp-2-197-2002.pdf https://open-access.net/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2002 ftnonlinearchiv https://doi.org/10.5194/acp-2-197-2002 2022-02-08T22:37:25Z Episodes of ozone depletion in the lowermost Arctic atmosphere (0--2 km) at polar sunrise have been intensively studied at Alert, Canada, and are thought to result from catalytic reactions involving bromine. Recent observations of high concentrations of tropospheric BrO over large areas of the Arctic and Antarctic suggest that such depletion events should also be seen by ozonesondes at other polar stations. An examination of historical ozonesonde records shows that such events occur frequently at Alert, Eureka and Resolute, but much less frequently at Churchill and at other stations. The differences appear to be related to differences in average springtime surface temperatures. The long record at Resolute shows depletions since 1966, but with an increase in their frequency over the period 1966--2000 of 0.66 ± 0.59% per year (95% confidence limits), explaining the apparent increase of Hg in Arctic biota in recent times. Article in Journal/Newspaper Antarc* Antarctic Arctic Niedersächsisches Online-Archiv NOA Antarctic Arctic Canada Eureka ENVELOPE(-85.940,-85.940,79.990,79.990) Atmospheric Chemistry and Physics 2 3 197 205 |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Tarasick, D. W. Bottenheim, J. W. Surface ozone depletion episodes in the Arctic and Antarctic from historical ozonesonde records |
topic_facet |
article Verlagsveröffentlichung |
description |
Episodes of ozone depletion in the lowermost Arctic atmosphere (0--2 km) at polar sunrise have been intensively studied at Alert, Canada, and are thought to result from catalytic reactions involving bromine. Recent observations of high concentrations of tropospheric BrO over large areas of the Arctic and Antarctic suggest that such depletion events should also be seen by ozonesondes at other polar stations. An examination of historical ozonesonde records shows that such events occur frequently at Alert, Eureka and Resolute, but much less frequently at Churchill and at other stations. The differences appear to be related to differences in average springtime surface temperatures. The long record at Resolute shows depletions since 1966, but with an increase in their frequency over the period 1966--2000 of 0.66 ± 0.59% per year (95% confidence limits), explaining the apparent increase of Hg in Arctic biota in recent times. |
format |
Article in Journal/Newspaper |
author |
Tarasick, D. W. Bottenheim, J. W. |
author_facet |
Tarasick, D. W. Bottenheim, J. W. |
author_sort |
Tarasick, D. W. |
title |
Surface ozone depletion episodes in the Arctic and Antarctic from historical ozonesonde records |
title_short |
Surface ozone depletion episodes in the Arctic and Antarctic from historical ozonesonde records |
title_full |
Surface ozone depletion episodes in the Arctic and Antarctic from historical ozonesonde records |
title_fullStr |
Surface ozone depletion episodes in the Arctic and Antarctic from historical ozonesonde records |
title_full_unstemmed |
Surface ozone depletion episodes in the Arctic and Antarctic from historical ozonesonde records |
title_sort |
surface ozone depletion episodes in the arctic and antarctic from historical ozonesonde records |
publisher |
Copernicus Publications |
publishDate |
2002 |
url |
https://doi.org/10.5194/acp-2-197-2002 https://noa.gwlb.de/receive/cop_mods_00049483 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00049103/acp-2-197-2002.pdf https://acp.copernicus.org/articles/2/197/2002/acp-2-197-2002.pdf |
long_lat |
ENVELOPE(-85.940,-85.940,79.990,79.990) |
geographic |
Antarctic Arctic Canada Eureka |
geographic_facet |
Antarctic Arctic Canada Eureka |
genre |
Antarc* Antarctic Arctic |
genre_facet |
Antarc* Antarctic Arctic |
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-2-197-2002 https://noa.gwlb.de/receive/cop_mods_00049483 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00049103/acp-2-197-2002.pdf https://acp.copernicus.org/articles/2/197/2002/acp-2-197-2002.pdf |
op_rights |
https://open-access.net/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/acp-2-197-2002 |
container_title |
Atmospheric Chemistry and Physics |
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2 |
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3 |
container_start_page |
197 |
op_container_end_page |
205 |
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1766260891473412096 |