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River Terms
Rivers Terms Globals 9
Question | Answer |
---|---|
Erosion | the wearing away of the land by the process of water, wind, or ice |
Transportation | the process whereby the river moves its load |
Deposition | the process whereby the river drops material when it lacks energy to transport it's load |
Attrition | when boulders bash together and break into smaller pieces |
hydraulic action | the force of the water dislodges particles from the river's beds and banks |
corrasion | material in suspension wears away the banks in a sand papering action (aka abrasion) |
corrosion | the acids in the river dissolve the rocks in the bed and the banks of the river |
traction | rolling stones (needs lots of energy) |
saltation | bouncing or leap-frogging motion of sand sized material |
suspension | silt and clay sized material carried within the water flow |
solution | material which has been dissolved in the water and carried within the waterflow |
discharge | measured in cumecs |
evapotranspiration | the combination of water from plants and bodies of water returning to the atmosphere |
infiltration | water passing from the surface to the soil |
interception | vegetation |
surface-runoff | water flowing to the river overland |
precipitation | input into the drainage basin system |
percolation | slow movement of water down through the soil to the rocks |
stem flow | water transfer running down plants |