Spatial-Temporal Variability of Thermal Structure of Upwelling in the Southwestern Part of Lake Baikal

The features of coastal full upwelling in August-September 2004 have been revealed based on the results of processing and joint analysis of high-frequency water temperature measurements at two moorings located in the southwestern part of Lake Baikal, reanalysis of the wind situation and surface currents using successive IR satellite surveys by the maximum cross-correlation method. Quantitative estimates of changes in the thermal structure at coastal and deep station, the rate of rise and fall of water, and spatial and temporal variability of heat content have been obtained. The duration of minimum temperatures at the underlying horizons of the active layer during the upwelling period is 11-15 days, with a longer and more intense effect being manifested in the coastal zone.