How does a river profile alter with distance downstream?
A rivers long profile typically varies in accordance with the upper, middle and lower course.
The upper course typically has a steeper profile, a v shaped bottom, is narrower with faster flowing water. Waterfalls and gorges are common.
The middle course sees the development of a more gentle profile with a wider valley forming with a flatter bottom. River velocity slows.
In in the lower course the river widens and flood plains develop. Meanders, oxbow lakes and braided channels are all common features as a result of sediment deposition.
TS
Related Geography GCSE answers
All answers ▸Outline the differences between the three different types of rock.
Explain what is meant by a sense of place?
Use a case study to illustrate how rising sea levels will have important social and political consequences for people living in the coastal zone.
There are a number of push and pull factors that cause rapid urbanisation in lowincome developing countries (LIDCs). Explain how two push factors cause rapid urbanisation in LIDCs.