Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001georl..28..717y&link_type=abstract
Geophysical Research Letters, Volume 28, Issue 4, p. 717-720
Astronomy and Astrophysics
Astrophysics
3
Atmospheric Composition And Structure: Chemical Kinetic And Photochemical Properties, Atmospheric Composition And Structure: Constituent Sources And Sinks, Atmospheric Composition And Structure: Evolution Of The Atmosphere, Atmospheric Composition And Structure: Middle Atmosphere-Composition And Chemistry
Scientific paper
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.
Brasseur Guy P.
Yang Peicai
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