STRATOSPHERIC OZONE PROFILES BASED ON THE EXOS-C SATELLITE DATA

Monthly and zonal average distributions of ozone in a meridional plane were obtained using the UV spectrometer data on the EXOS-C satellite during March 1984 - September 1987. Individual vertical ozone profiles retrieved from the measured spectral intensities of the backscattered UV was proved to be in general agreement within +/-10% with those from ground-based measurements. The EXOS-C meridional ozone distributions are constracted and compared with those of the CIRA model to exhibit an agreement within +/-10% on the average in the atmospheric pressure range of 15 - 1.5 mb (altitudes between approximately 28 km and approximately 45 km). At altitudes above approximately 50 km, the EXOS-C ozone volume mixing ratios are systematically smaller than those of the CIRA. This difference can be attributed to a calibration bias. Amplitudes of seasonal variations in ozone volume mixing ratios are also obtained at various latitudes and atmospheric pressure levels and compared with those of the CIRA.