Remote-sensing studies of aerosol and wind fields in the atmosphere over lake Baikal

We present here some results of the study of vertical profiles of aerosol scattering coefficient, and vertical profiles of wind velocity and wind direction in the boundary layer over Lake Baikal based on analysis of the data array compiled during whole day round lidar observations carried out in the summer field missions of 1998-1999. It was noticed in this study that the aerosol fields over Lake Baikal are characterized by a much complicated vertical structure that, in its turn, is caused by specific features of the air mass circulation in the mountain valley of the Lake Baikal. The estimates of the vertical size of the air circulation cells showed that the lower boundary of the cells is at about 300-m height, while their top being normally at a height from 1000 to 1300 m.