Chemical ozone loss in the Arctic winter 1991–1992

Chemical ozone loss in winter 1991–1992 is recalculated based on observations of the HALOE satellite instrument, Version 19, ER-2 aircraft measurements and balloon data. HALOE satellite observations are shown to be relia
Chemical ozone loss in winter 1991–1992 is recalculated based on observations of the HALOE satellite instrument, Version 19, ER-2 aircraft measurements and balloon data. HALOE satellite observations are shown to be reliable in the lower stratosphere below 400 K, at altitudes where the measurements are most likely disturbed by the enhanced sulfate aerosol loading, as a result of the Mt.~Pinatubo eruption in June 1991. Significant chemical ozone loss (13–17 DU) is observed below 380 K from Kiruna balloon observations and HALOE satellite data between December 1991 and March 1992. For the two winters after the Mt. Pinatubo eruption, HALOE satellite observations show a stronger extent of chemical ozone loss towards lower altitudes compared to other Arctic winters between 1991 and 2003. In spite of already occurring deactivation of chlorine in March 1992, MIPAS-B and LPMA balloon observations indicate that chlorine was still activated at lower altitudes, consistent with observed chemical ozone loss occurring between February and March and April. Large chemical ozone loss of more than 70 DU in the Arctic winter 1991–1992 as calculated in earlier studies is corroborated here.
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Metadaten
Author:Simone Tilmes, Rolf Müller, Ross J. Salawitch, Ulrich Schmidt, Christopher R. Webster, Hermann Oelhaf, Claude C. Camy-Peyret, James M. Russell III.
URN:urn:nbn:de:hebis:30-58066
DOI:http://dx.doi.org/10.5194/acp-8-1897-2008
ISSN:1680-7316
ISSN:1680-7324
Parent Title (English):Atmospheric chemistry and physics
Publisher:European Geosciences Union
Place of publication:Katlenburg-Lindau
Document Type:Article
Language:English
Date of Publication (online):2008/03/31
Date of first Publication:2008/03/31
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Release Date:2008/10/06
Volume:8
Pagenumber:14
First Page:1897
Last Page:1910
Note:
© Author(s) 2008. This work is distributed under the Creative Commons Attribution 3.0 License.
HeBIS PPN:206096852
Institutes:Geowissenschaften
Dewey Decimal Classification:550 Geowissenschaften
Sammlungen:Universitätspublikationen
Licence (German):License LogoCreative Commons - Namensnennung 3.0

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