(A) Flowing stream, showing the cutbank and point-bar sides of the meander bend. Note the rippled stream bed. Water and sediment transport is from top to bottom. (B) Plan view and cross-sectional view of flow in a meandering-river channel. Flow velocities are higher on the cutbank side of the river than they are on the point-bar side, leading to erosion on the cutbank side and deposition on the point-bar side. Except for frictional forces near the river bed, vertical flow velocities tend to decrease laterally across the channel, from the cutbank to the point-bar side.
Source of figure is unknown.
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