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Monitoring of the stratospheric ozone layer by laser radar

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Abstract

This paper describes a setup for monitoring the stratospheric ozone distribution up to an altitude of 50 km. These measurements are of special interest since theoretical models predict ozone depletion due to anthropogenic release of chlorofluoromethanes, this being most pronounced between 35 and 45 km. The chlorofluoromethanes are used, for example, as propellant gases in spray cans or as cooling liquids in refrigerators. At ground level they are inert, but after diffusing into the upper stratosphere they are dissociated by the solar UV irradiance. The free chlorine atoms thus generated act on the ozone, destroying it catalytically.

© 1984 Optical Society of America

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