Geography Rivers - Key Terms

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  • Created by: LucyBonny
  • Created on: 08-05-16 18:25
Drainage Basin
The catchment area from which a river obtains its water
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Watershed
The boundary that seperates one drainage basin from another
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Infiltration
Transfer of water into the soil from the surface
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Surface Run-Off
Water running over the surface of the ground (overload flow)
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Evapotranspiration
Moisture lost from a vegetated land surface
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Percolation
Transfer of water downwards within the soil
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Saturation
The point at which soil and rocks can hold no more water
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Weathering
The disintergration of rocks in situ (on the spot)
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Erosion
The removal of material by an agent such as water, ice or wind
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Load
The total amount of sediment carried by a river
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Abrasion
Material carried by a river rubs against the banks and river bed
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Attrition
Rocks carried by the river collide with each other, break up and become smoother
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Hydraulic Action
The force of water pounding against the bed and banks causes material to break away
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Solution
Chemical reaction causing rocks to break away and dissolve
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Mass Movement
Any large scale movement of material not directly involving any agent of erosion
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Hydraluic Radius
Measure of a river's efficiency
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Other cards in this set

Card 2

Front

The boundary that seperates one drainage basin from another

Back

Watershed

Card 3

Front

Transfer of water into the soil from the surface

Back

Preview of the back of card 3

Card 4

Front

Water running over the surface of the ground (overload flow)

Back

Preview of the back of card 4

Card 5

Front

Moisture lost from a vegetated land surface

Back

Preview of the back of card 5
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