
Key words for GCSE Geography.
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abrasion |
Abrasion is when rocks carried by the river break down the river banks and bed.
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attrition |
Attrition is when rocks carried by the river crash together and break down into smaller pieces.
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dam |
A dam is a barrier constructed to hold back water and form a reservoir.
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discharge |
The discharge of a river is the total volume of water flowing through a river channel at a given point.
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embankments |
Embankments are raised banks constructed along a river allowing it to hold more water.
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engineering |
Hard engineering is the building of artificial structures to reduce the impact of river processes.
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estuary |
An estuary is the point where a river meets the sea.
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flood |
Floods occur when river discharge exceeds the channels volume.
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fluvial |
Fluvial processes are processes that relate to erosion, transport and deposition by a river.
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gorge |
A gorge is a steep sided, narrow valley.
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hydraulic |
Hydraulic action is the wearing away of riverbanks due to the build up of air pressure in cracks and crevices.
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hydrograph |
An hydrograph shows the discharge of a river over a period of time.
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interlocking |
Interlocking spurs are the hills that a river winds around.
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lateral |
Lateral erosion is the sideways erosion of the channel by a river.
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levees |
Levees are the natural or man made embankments of sediment on the bank of a river.
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meander |
A meander is a bend in the river.
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oxbow |
An oxbow lake is a U shaped lake formed when a wide meander is cut off from the river.
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plain |
Flood plains are the flat areas of land either side of a river channel.
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precipitation |
Precipitation is any kind of moisture falling from the atmosphere.
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processes |
Fluvial processes are the interactions between the flowing water and the natural channels of a river.
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