Natural and anthropogenic perturbations of the stratospheric ozone layer

Brasseur, Guy P.

doi:10.1016/0032-0633(92)90071-U

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Natural and anthropogenic perturbations of the stratospheric ozone layer

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Brasseur, G. P. (1992). Natural and anthropogenic perturbations of the stratospheric ozone layer. Planetary and Space Science, 40, 403-412. doi:10.1016/0032-0633(92)90071-U.

Cite as: https://hdl.handle.net/21.11116/0000-000E-B23E-4

Abstract

The paper reviews potential causes for reduction in the ozone abundance. The response of stratospheric ozone to solar activity is discussed. Ozone changes are simulated in rotation with the potential development of a fleet of high-speed stratospheric aircraft and the release in the atmosphere of chlorofluorocarbons. The calculations are performed by a two-dimensional chemical-radiative-dynamical model The importance of heterogeneous chemistry in polar stratospheric clouds and in the lunge layer (sulfate aerosol) is emphasized. The recently reported ozone trend over the last decade is shown to have been largely caused by the simultaneous effects of increasing concentrations of chlorofluorocarbon and heterogeneous chemistry. The possibility for a reduction in stratospheric ozone following a large volcanic eruption such as that of Mount Pinatubo in 1991 is discussed. © 1992.