Eddy-driven flows over varying bottom topography in natural water bodies

A mechanism of the formation of eddy-driven flows in natural water bodies with varying bottom topography is discussed. The discussion is based on the theory of rotationally anisotropic turbulence. It is argued that a flow develops under the coupled effect of a preferred rotation orientation of turbulent eddies, and bottom topography. The flow formation is illustrated on a simple model. According to the model, flows are formed in regions with the depth smaller than the critical depth predicted by the model.