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GCSE Geography · key term
Erosion downwards into a river bed, deepening the channel and valley.
Used by AQA, Edexcel and OCR
Specification 3.1.3.3 · Paper 1
Downward erosion of a river bed, deepening the channel and valley.
Revise: River Profiles and Fluvial ProcessesVertical erosion, which cuts downwards into the river bed, is dominant and deepens the channel and valley.
Specification 1.7, 1.10 · Paper 1
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Vertical erosion cuts down into the river bed. Weathering and mass movement also break down the valley sides and move material downhill. Together, these processes produce a narrow, steep-sided V-shaped valley.
Erosion that cuts downwards into a river bed, deepening the channel and valley.
Specification 3.2a · Paper 1, Paper 3
The wearing away of a river's bed, deepening its channel.
Revise: River Landforms: Erosional and Depositional FeaturesVertical erosion cuts down into the riverbed and is especially important in upland, upper-course valleys. Lateral erosion wears away the banks, allowing the river to widen its channel and move sideways across its valley. This becomes more important in lowland areas.