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The cross profile of a river refers to a section taken sideways across the river channel or valley. There are two main types: Channel Cross Profile: Includes only the river itself. Valley Cross Profile: Encompasses the river channel, the valley floor, and the slopes of the valley sides.
As small streams and rivers tumble down mountainsides, they are forced to flow around ‘fingers’ of land that jut out into the river valley. It is these ‘fingers’ of land that are the interlocking spurs. Vertical rather than lateral erosion dominates in the upper course of the river.
River landforms can be divided into upper, middle and lower course features. As the river moves from the upper course to the lower course, the features in the river will change.
Apr 29, 2024 · As the river flows downstream the gradient becomes less steep, meaning that there is less vertical erosion, and instead lots of lateral erosion. This sideways erosion eats away at the river banks, making the channel wider.
Learn about and revise river processes, including erosion, transportation and deposition, with GCSE Bitesize Geography (AQA).
Apr 29, 2024 · Vertical erosion - this is downwards erosion that makes the river bed deeper. It is usually caused by hydraulic action and occurs in the upper course of the river, causing steep-sided v-shaped valleys; Lateral erosion - this is sideways erosion, wearing the river bank away to make the channel much wider. It occurs in the middle and lower ...
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Do river valleys experience vertical and lateral erosion?
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Key points. Rivers form part of the water cycle. They are a downward flow of water, under the force of gravity. Rivers shape the land through erosion, transportation and deposition. These processes...
