Researches of the thermal regime of stratosphere over Tomsk for the period 2012-2015. according to lidar observations

This article presents a study of the vertical temperature distribution over Tomsk, carried out in disturbed and calm periods of the year for 2012-2015. Based on the accumulated experimental material, a number of features of the intra-annual dynamics of the stratospheric thermal regime were established. So, winter stratospheric warming occurs annually. During this period, two strong (major) warmings of the winters of 2009/10 and 2012/13 were recorded, during which the transfer of air masses from the western to the eastern in the upper atmosphere, and four weak (minor) airflows, were winters 2011/10, 2012 /11, 2014/13 and 2015/14 Over many years of observations, it has been shown that for the region of Western Siberia for a long period of the year April-November, in the overwhelming majority of cases, the vertical temperature distribution is in good agreement with the model CIRA-86 distribution.