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Journal Article

The nonlinear response of stratospheric ozone to NOx and ClOx perturbations

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Brasseur,  Guy P.
The Atmosphere in the Earth System, MPI for Meteorology, Max Planck Society;

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Citation

Yang, P., & Brasseur, G. P. (2001). The nonlinear response of stratospheric ozone to NOx and ClOx perturbations. Gophysical Research Letters, 28, 717-720. doi:10.1029/2000GL011428.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0029-0221-1
Abstract
A mathematical analysis of the stratospheric photochemical system (gas phase reactions only) shows the existence of potential catastrophe mechanisms which could produce a dramatic reduction in the ozone concentration near 25 km altitude. The conditions leading to such catastrophe correspond to a relatively modest (i.e., factor 2-2.5) increase in the stratospheric source of reactive nitrogen (NOx). For a tenfold increase in the source of reactive chlorine (ClOx), the ozone system exhibits a large amplitude oscillatory behavior with a period of several tens of years. Transport processes could, however, damp these dramatic changes resulting from the nonlinear nature of the stratospheric chemical system.