Energy Of A River

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Energy Of A River

Factors Affecting The Volume Of Water In A River

Roughness Of Channel

A rough channel reduces the speed of the river because of higher friction while a smooth channel increases the speed of the river because of lower friction

Wetted Perimeter

A large wetted perimeter causes the speed of the river to be low because there is alot more friction than a small wetted perimeter which causes the spped of the river to be high as there is less friction

Gradient Of channel

A gentle gradient causes the speed of the river to be slow whereas a steep gradient causes the speed of the river to be high

Factors Affecting The Speed Of The River

Permeability Of Rocks

high permeability increases infiltration and decreases run-off thus volume of water in the river is low while low permeability decreases infiltration and increases surface run-off thus volume of water in the river is high

Pressence Of Vegetation

Abundant vegetation decreases the amount of surface run-off thus reducing the amount of water in a river while sparse vegetation leads to high surface run-off, thus increasing the amount of water in a river

Climate

Places with higher rainfall have a higher volume of water in the river while places with low rainfall have a lower volume of water in the river

Size Of Drainage Basin

A small drainage basin results in a small volume of wayer while a large drainage basin results in a large volume of water