European Geosciences Union Atmospheric Chemistry and Physics

Abstract. We present ozone measurements from the mil-limetre wave radiometer installed at the Swedish Institute of Space Physics (Institutet för rymdfysik, IRF) in Kiruna (67.8 ◦ N, 20.4 ◦ E, 420 m asl). Nearly continuous operation in the winter of 2002/2003 allows us to give an overview of ozone e...

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Bibliographic Details
Main Authors: Atmos Chem Phys, U. Raffalski, G. Hochschild, J. Urban
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Published: 2005
Subjects:
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.592.6055
http://hal.archives-ouvertes.fr/docs/00/32/83/87/PDF/acp-5-1399-2005.pdf
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Summary:Abstract. We present ozone measurements from the mil-limetre wave radiometer installed at the Swedish Institute of Space Physics (Institutet för rymdfysik, IRF) in Kiruna (67.8 ◦ N, 20.4 ◦ E, 420 m asl). Nearly continuous operation in the winter of 2002/2003 allows us to give an overview of ozone evolution in the stratosphere between 15 and 55 km. In this study we present a detailed analysis of the Arctic winter 2002/2003. By means of a methodology using equiv-alent latitudes we investigate the meteorological processes in the stratosphere during the entire winter/spring period. Dur-ing the course of the winter strong mixing into the vortex took place in the middle and upper stratosphere as a result of three minor and one major warming event, but no evidence was found for significant mixing in the lower stratosphere. Ozone depletion in the lower stratosphere during this win-