Vol. 14, issue 04, article # 7

Abstract:

The dependence of the initiation and conservation of the in-hollow air circulation inside the boundary layer of the atmosphere over Lake Baikal on synoptic conditions and the time of day has been revealed based on data of airborne measurements in 1991 and 1995 and balloon measurements in 1997-1999. The existence of such a circulation in the presence of the westerly component in the direction of the main flow, beginning from the height of the 850-hPa-isobar surface, is proved. A destructive impact of the fronts on the in-hollow circulation is noticed. The mechanism of vertical distribution of the wind speed and direction in the east branch of the circulation is clarified based on the measurements conducted in Boyarsk village.