Geography Rivers

Definition of Traction
Large Particles rolled along river bed by force of the water
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Definition of Suspension
Small particles are are carried along in the water
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Definition of Solution (Transportation)
Soluble materials dissolve in the water and are carried along
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Definition of Saltation
Pebble sized particles are bounced along the sea bed
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Definition of Hydraulic Action
Sheer force of the water breaks particles away from the river channel
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Definition of Abrasion
Eroded rocks picked up by the river scrape and rub against the channel
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Definition of Attrition
Eroded rocks picked up by the river smash into each other and break into smaller fragments
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Definition of Solution ( Erosion)
River dissolves some types of rock
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How are Spits formed
At sharp ends in the river such as the river mouth
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How are bars formed
When a spit joins 2 headlands together
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How are Sand dunes formed
When sand is deposited by longshore drift and moved up the beach by wind
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Definition of Hard engineering
Man made structures built to control the flow of the sea and to reduce flooding and erosion
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Definition of Soft engineering
Working with the envionemnt to naturall create defences agaisnt flooding
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Examples of Soft engineering
Beach nourishement, Dune regeneration
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Examples of Hard engineering
Groynes, Rock armour, Sea wall
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Definition of Vetical erosion
Deepens the river chanel making it V shaped
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Definition of Lateral Erosion
Widens the river during the formation of meander
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Definition of Tributary
Stream or river that conjoins into another
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Definition of Meander
Large bend in the river
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What's the gradient of the upper course river
Steep
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What's the gradient of the middle course river
Medium
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What's the gradient of the lower course river
Gentle
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Definition of Long profile
A long profile is a line representing the river from its source (where it starts) to its mouth
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Definition of Cross profile
A cross profile shows a cross-section of a river’s channel and valley at a certain point along the river’s course.
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Other cards in this set

Card 2

Front

Small particles are are carried along in the water

Back

Definition of Suspension

Card 3

Front

Soluble materials dissolve in the water and are carried along

Back

Preview of the back of card 3

Card 4

Front

Pebble sized particles are bounced along the sea bed

Back

Preview of the back of card 4

Card 5

Front

Sheer force of the water breaks particles away from the river channel

Back

Preview of the back of card 5
View more cards

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