SPATIAL STRUCTURE OF WIND CURRENTS IN A VALLEY WATER RESERVOIR

K. K. Edelshtein, S. A. Ivanenko, and P. A. Patrik

The paper presents results of four years of observations of wind currents in the Mozhaisk Reservoir and numerical modeling results from a two-dimensional hydrodynamic model using an adaptive curvilinear grid for reproducing bottom relief, details and also qualitative and quantitative estimates of model verification. Wind current fields are found to represent a complicated combination of oppositely directed and strongly curved flows of different width, among which there many small areas with a slow (<< 3 cm/s) water rotation, which points to the presence of upwelling and downwelling confined to certain bottom topography forms. It is noted that the velocity of countercurrents in a channel depression is much greater that the drift current velocity, which is explained by the narrowing of a cross section of a drowned valley with depth. It is proposed to use similar calculations for optimization of the ecological monitoring network in valley reservoir.

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