How has rivers affected the landform?
In the Yorkshire dales we saw the meanderings of streams tributaries confluencing into larger rivers. We saw the effects of the meandering river caused by the varying rates of the velocity of the river. There were scars in where the meandering loops had been but now there was an oxbow lake. Meanders are curving bends in the river channel, caused by different levels of erosion. Meanders migrate as they move position over a long time across rivers, as we saw the scaring on the floodplains. Below is the sequence of how meanders form: 1. The river is flowing straight. In this there are pools and riffles (pools being greater areas of erosion, and riffles are shallow areas) 2. The river develops into a series of bends due to greater areas of erosion. The fastest flow, flows on the outside of these | bends creating deeper pools and more erosion cutting into more of the land. 3. The wave in the river has to become greater. The riffles tend to lie in the middle of the straight parts of the mean
