Currents in a small lake during the open water period
The features of thermo- and hydrodynamics of the water column of a small polymictic Lake Vendyurskoe (south of Karelia) are analyzed according to measurements of temperature and currents during the open water of 2018. It is shown that there was a well-pronounced stratification against the background of the warm weather of May, July and August. The periods of homothermy were characterized by active hydrodynamics of both the surface and bottom layers of the water column. It was established that the current velocities exceeded 10 cm/s in the bottom layers of the central deep-water basin of the lake with complete mixing of the water column against the background of the intensification of atmospheric exposure - wind intensifications and abrupt changes in atmospheric pressure. Separate bottom dimples were characterized by lower current velocities.