Data from surface-based Umkehr and satellite ultraviolet backscatter observations of the vertical distribution of ozone in the upper stratosphere are compared. The satellite data are limited to four single-pass observations of the vertical-meridional distribution of ozone at different seasons of the year during 1970. The Umkehr data are climatological means over several years of observations. Although most of the observations made with the surface and satellite systems do not coincide in time, they nevertheless show a general agreement in seasonal variations that clearly appear in the more complete set of Umkehr data. Average values of ozone concentrations for satellite and Umkehr observations and a standard ozone profile are intercompared and show some significant differences. |