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 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.

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Copyright 2012 The Arctic Institute of North America.
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Author Hannigan, James
Batchelor, Rebecca
Coffey, Michael
Publisher UCAR/NCAR - Library
Publication Date 2012-09-01T00:00:00
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Topic Category geoscientificInformation
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Metadata Date 2023-08-18T18:50:30.326834
Metadata Record Identifier edu.ucar.opensky::articles:12259
Metadata Language eng; USA
Suggested Citation Hannigan, James, Batchelor, Rebecca, Coffey, Michael. (2012). Intense arctic ozone depletion in the spring of 2011. UCAR/NCAR - Library. http://n2t.net/ark:/85065/d7rx9cvf. Accessed 13 March 2025.

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