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River Energy by Mind Map: River Energy
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River Energy

This is just a demo map that you can delete right away, if you feel like it...

Speed

Gradient of channel

Steeper slope = faster speed of river flow

Gentler slope = lower speed of river flow

Texture of riverbed

smoother river bed = less friction = higher speed of flow

Roughter river bed = more friction = slower speed of flow

Wetted Perimeter

Shape of channel affects wetted perimenter. Wetted Perimenter = large = more water comes in contact with channel

Small wetted perimeter = less friction = river moves faster

Volume

Presence of vegetation

Sparse vegetation intercepts less rain water and increases surface runoff = Volume of water is larger

Abundant vegetation allows more rainwater infiltrate the ground reducing surface runoff. Less surface runoff = volume of water is smaller

Amount of rainfall

Higher rainfall = greater volume = more discharge

Lower rainfall = smaller volume = less discharge

Duration of rainfall

Longer duration of rain = greater volume of flow = more discharge

Shortage duration of rain = smaller volume of flow = less discharge

Size of drainage basin

Smaller drainage basin = small surface area = less water collected D:

Bigger drainage basin = greater surface area = more water collected! :D

Permeability of rocks

Permeability means the capability of rocks that allows water to flow through its pore spaces

More permeable = more rainwater seeps into the ground = less surface runoff. = The river volume will be smaller

Less permeable = more surface runoff = larger volume of water in its channel