Chemical depletion of ozone in the Arctic lower stratosphere during winter 1992-93

Satellite observations of ozone and chlorine monoxide concentrations during winter 1992–1993 show that in February 1993 chlorine in the lower stratosphere was mostly in chemically reactive forms. Decreases in stratospheric ozone concentration during February and early March 1993 are consistent with...

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Bibliographic Details
Published in:Nature (London) 1994-08, Vol.370 (6489), p.429-434
Main Authors: Manney, G. L, Froidevaux, L, Waters, J. W, Zurek, R. W, Read, W. G, Elson, L. S, Kumer, J. B, Mergenthaler, J. L, Roche, A. E, O'Neill, A, Harwood, R. S, Mackenzie, I, Swinbank, R
Format: Article
Language:English
Subjects:
Atmospheric composition. Chemical and photochemical reactions
Chlorine
Earth, ocean, space
Exact sciences and technology
External geophysics
Humanities and Social Sciences
multidisciplinary
Ozone
Ozone depletion
Physics of the high neutral atmosphere
Science
Science (multidisciplinary)
Stratosphere
Winter
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Summary:Satellite observations of ozone and chlorine monoxide concentrations during winter 1992–1993 show that in February 1993 chlorine in the lower stratosphere was mostly in chemically reactive forms. Decreases in stratospheric ozone concentration during February and early March 1993 are consistent with chemical destruction by this reactive chlorine. Comparison with changes in the distribution of long-lived chemical and dynamical tracers shows that the observed decrease cannot have been caused solely by dynamical processes.
ISSN:0028-0836
1476-4687
DOI:10.1038/370429a0