Certain averaged-statistical characteristics of the occurrence of aerosol scattering in the middle atmosphere of Kamchatka.
We study the scattering ratio profiles obtained from lidar station IKIR FEB RAS (Kamchatka) from 2007 to 2011, during the cold period October-March. Obtained average profiles in the mesosphere have maxima at heights of 65, 69, and 75 km. Negative correlations between the average scattering ratio and temperature in the mesosphere during a stratospheric warming, and in the stratosphere in the serene days are found.