Bilokrynits’ka L. Diagnostics of state and long – term variations of ozone layer from data of space observations.

The thesis is devoted to the results of elaboration and testing of the device BUVS (Board Ultra-Violet Spectrometer) designed for monitoring of the global state of the ozone layer (measurement of the total contain and vertical distribution) from the board of space apparatus, TOMS and the balloon probe. The results prove that the measuring abilities of the BUVS on the total ozone contain are comparatively high. It is noted that exploitation of the BUVS together with the space means of monitoring of the ozone layer may considerably increase the reliability and self-descriptiveness of the whole system of ozone monitoring because the BUVS could unify the measuring abilities of such modern systems as, TOMS and SAGE. We have analyzed the data of observation of the field of total ozone contain over Ukraine by the land-based and space measuring means beginning with the 70-s of the last century until to now. The climatic norms, linear, and parabolic trends of the total ozone content in Ukraine are computed.These results are compared with the analogous data on the corresponding latitude band (440N – 530N). It is shown that long-term variations of the total ozone contain are not unidirectoral and have an oscillating character. The empiric model of computation of the spectral density of UF – illumination of the Earth surface was elaborated on the base of data on the total ozone contain and the evaluation of the total cloudiness. We calculated the corresponding climate norms and grounded the method of field mapping in absolute units and deviations from these norms. On the base of data obtained with the help of the infra red installation CRISTA during its missions 1994 and 1997, we have analyzed the properties of ratio of the ozone mixture in the periods that adjoin to the spring ozone anomalies (ВОАА). Since the formation process of the minimums at these times takes place at the boarder of the polar night, we may claim that the catalytic cycle of chlorine oxide cannot explain their appearance. Apparently this confirmsthe hypothesis of direct ozone destroying on the surface of particles of the polar stratosphere clouds. It is established that formation of the minimums takes place in two space-separated ranges of heights and closely connected with ordering of the atmospheric motions.