Bottom current and distribution of water-quality parameters in a reservoir

Density stratified currents in reservoirs are one of the main hydrodynamic processes determining water quality. Comprehensive hydrophysical and biochemical studies of such currents carried out in the Mozhaisk reservoir are detailed. A strong circulating bottom density current was detected, and transformations of its structures and water quality distribution over the depth of the water body under the effect of in internal wave were revealed. An optimal velocity of vertical wave velocity for effective supply of oxygen and other substances to the upper and central layers of the water was found to be about 0.3cm/s.