Bulg. J. Phys. vol.27 no.S3 (2000), pp. 061-067



On Temperature Variabilities in Middle Atmosphere Over Southeastern Europe

P.T. Simeonov, S.I. Kolev
National Institute of Meteorology and Hydrology (NIMH) I 784 Sofia, Bulgaria
Abstract. The basic air temperature characteristics (representing the dynamics in the middle atmosphere) are obtained on the basis of radio and rocket sounding data series from Ahtopol station during December 1982 — March 1992. The vertical cross section of monthly temperature distribution shows the seasonal passage in middle atmosphere over Balkan region in Southeastern Europe. The air temperature vertical profiles (seasonal and annual) are framed up to 75 km in the troposphere and stratosphere. Annual and seasonal temperature trends at 25, 45 and 65 km levels are studied. The tendency of cooling in the high stratosphere is mentioned after 1985, more underlined in the springtime and summer season.

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