Abstract

Ozone distributions deduced from Umkehr observations are subject to error if the temperature dependence of ozone absorption has not been included in the development of an inversion system. An estimation of the error is made for the World Ozone Data Center Umkehr inversion system in the following way: Umkehr curves are computed for temperature dependent ozone absorption coefficients and for absorption coefficients at −44°C; then, ozone distributions are deduced from these curves and are compared for midlatitude summer and winter situations. Significant differences arise and their cause is discussed. It is suggested that any future work on the development of inversion systems for indirect observation of the vertical ozone distribution include a compensation for the temperature dependence of ozone absorption.

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