Intense Arctic Ozone Depletion in the Spring of 2011
Observations of record-breaking ozone depletion during the Arctic spring of 2011 were made at 76˚ N in Thule, Greenland. The ozone total column amount of 290 DU measured on 18 March 2011 is the lowest value from the 12-year observation record and represents an ozone depletion of up to 48% of a typic...
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ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/67268 2023-05-15T14:19:22+02:00 Intense Arctic Ozone Depletion in the Spring of 2011 Hannigan, James W. Batchelor, Rebecca L. Coffey, M.T. 2012-09-19 application/pdf https://journalhosting.ucalgary.ca/index.php/arctic/article/view/67268 eng eng The Arctic Institute of North America https://journalhosting.ucalgary.ca/index.php/arctic/article/view/67268/51178 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/67268 ARCTIC; Vol. 65 No. 3 (2012): September: 245–366; 339–343 1923-1245 0004-0843 Greenland ozone polar vortex FTS remote sensing Groenland vortex circumpolaire télédétection info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 2012 ftunivcalgaryojs 2022-03-22T21:23:57Z Observations of record-breaking ozone depletion during the Arctic spring of 2011 were made at 76˚ N in Thule, Greenland. The ozone total column amount of 290 DU measured on 18 March 2011 is the lowest value from the 12-year observation record and represents an ozone depletion of up to 48% of a typical March column. The unique 2010 – 11 vortex was characterized by sustained low stratospheric temperatures and stability that resisted breakup through March. Simultaneous observations of O3, HF, HCl, HNO3, and ClONO2 demonstrate strong subsidence and substantial conversion of chlorine from its normal reservoirs. Au printemps 2011, des observations d’appauvrissement record de l’ozone ont été faites dans l’Arctique à 76˚ N à Thule, au Groenland. Le 18 mars 2011, la colonne d’ozone total a été mesurée à 290 DU, ce qui représente la valeur la plus faible depuis que les observations ont commencé à être consignées il y a 12 ans. Cela constitue un appauvrissement de l’ozone allant jusqu’à 48 % de la colonne typiquement enregistrée en mars. Le vortex unique dénoté en 2010-2011 était caractérisé par des températures stratosphériques faibles et soutenues ainsi que par une stabilité ayant résisté à la dissipation jusqu’en mars. Des observations simultanées de O3, HF, HCl, HNO3 et ClONO2 ont démontré une forte subsidence et une conversion substantielle du chlore à partir des réservoirs normaux. Article in Journal/Newspaper Arctic Arctic Greenland Groenland Thule University of Calgary Journal Hosting Arctic Greenland ARCTIC 65 3 |
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Open Polar |
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University of Calgary Journal Hosting |
op_collection_id |
ftunivcalgaryojs |
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English |
topic |
Greenland ozone polar vortex FTS remote sensing Groenland vortex circumpolaire télédétection |
spellingShingle |
Greenland ozone polar vortex FTS remote sensing Groenland vortex circumpolaire télédétection Hannigan, James W. Batchelor, Rebecca L. Coffey, M.T. Intense Arctic Ozone Depletion in the Spring of 2011 |
topic_facet |
Greenland ozone polar vortex FTS remote sensing Groenland vortex circumpolaire télédétection |
description |
Observations of record-breaking ozone depletion during the Arctic spring of 2011 were made at 76˚ N in Thule, Greenland. The ozone total column amount of 290 DU measured on 18 March 2011 is the lowest value from the 12-year observation record and represents an ozone depletion of up to 48% of a typical March column. The unique 2010 – 11 vortex was characterized by sustained low stratospheric temperatures and stability that resisted breakup through March. Simultaneous observations of O3, HF, HCl, HNO3, and ClONO2 demonstrate strong subsidence and substantial conversion of chlorine from its normal reservoirs. Au printemps 2011, des observations d’appauvrissement record de l’ozone ont été faites dans l’Arctique à 76˚ N à Thule, au Groenland. Le 18 mars 2011, la colonne d’ozone total a été mesurée à 290 DU, ce qui représente la valeur la plus faible depuis que les observations ont commencé à être consignées il y a 12 ans. Cela constitue un appauvrissement de l’ozone allant jusqu’à 48 % de la colonne typiquement enregistrée en mars. Le vortex unique dénoté en 2010-2011 était caractérisé par des températures stratosphériques faibles et soutenues ainsi que par une stabilité ayant résisté à la dissipation jusqu’en mars. Des observations simultanées de O3, HF, HCl, HNO3 et ClONO2 ont démontré une forte subsidence et une conversion substantielle du chlore à partir des réservoirs normaux. |
format |
Article in Journal/Newspaper |
author |
Hannigan, James W. Batchelor, Rebecca L. Coffey, M.T. |
author_facet |
Hannigan, James W. Batchelor, Rebecca L. Coffey, M.T. |
author_sort |
Hannigan, James W. |
title |
Intense Arctic Ozone Depletion in the Spring of 2011 |
title_short |
Intense Arctic Ozone Depletion in the Spring of 2011 |
title_full |
Intense Arctic Ozone Depletion in the Spring of 2011 |
title_fullStr |
Intense Arctic Ozone Depletion in the Spring of 2011 |
title_full_unstemmed |
Intense Arctic Ozone Depletion in the Spring of 2011 |
title_sort |
intense arctic ozone depletion in the spring of 2011 |
publisher |
The Arctic Institute of North America |
publishDate |
2012 |
url |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/67268 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Arctic Greenland Groenland Thule |
genre_facet |
Arctic Arctic Greenland Groenland Thule |
op_source |
ARCTIC; Vol. 65 No. 3 (2012): September: 245–366; 339–343 1923-1245 0004-0843 |
op_relation |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/67268/51178 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/67268 |
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