Wind Effects on Deep Convection in Lake Baikal during the Autumnal Thermal Bar

Abstract

The results of numerical modelling of deep convection processes in Lake Baikal during the autumnal thermal bar are presented. Using the Boldakov River—the Maloye More Strait cross-section, characterized by great depths, as an example, an analysis of the space–time temperature distributions under various wind conditions was conducted. Simulations have shown the effectiveness of wind only in the upper 250-meter layer. However, the cabbeling instability generated by the thermal bar can lead to convective mixing down to depths of \({\sim}600\) m.