Geography Rivers Key Terms

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  • Created by: lucyb2000
  • Created on: 10-06-16 12:13

Key Terms: Rivers

Abrasion The pebbles being transported wear away the bed and banks of the river channel.

Attrition The particles are knocked about as they are transported, and they gradually become more rounded and reduced in size.

Condensation – When water turns from a gas to a liquid

Confluence – The point at which rivers meet.

Dam – Large concrete structure built to hold back flood water (Hard engineering)

Deposition – The river drops small pebbles and sand on the river bed

Discharge – The amount of water passing a specific point at a given time (Cross Section x Velocity)

Economic sustainability – Ensuring that future generations and businesses will have enough money to keep running

Environmental sustainability – The preservation of resources to maintain biodiversity

Erosion – The wearing away of the bed and banks of the river channel by abrasion, hydraulic action, solution and attrition.

Estuary – The tidal mouth of a river, with large, flat expanses of mud exposed at low tide.

Evaporation – When water turns from a liquid to a gas

Falling limb – When the discharge of a river is decreasing after its peak flow on a hydrograph

Groundwater stores – Water that’s stored in the ground

Hard engineering – Controlled disruption of natural processes using man-made structures



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