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20 Cards in this Set
- Front
- Back
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What is the land that gathers water for a river known as?
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Drainage basin
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What is the boundary of the drainage basin called? |
Watershed |
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What is infiltration? |
When water enters the soil |
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What are inputs in a drainage basin? |
Precipitation |
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What are the outputs of a drainage basin? |
Evapotranspiration
Runoff |
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What are smaller channels that join the main river called?
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Tributary |
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What is it called when precipitation falls on a river? |
Channel catch |
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What is it called when precipitation lands on vegetation? |
Interception |
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What is it called when water is given off by plants?
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Evapotranspiraton |
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What is a hydrograph? |
A time/discharge graph |
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What is the increase in discharge called? |
Rising limb |
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What is the time between peak rainfall and peak discharge called? |
Lag time |
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What is the falling side of a hydrograph called? |
Recession limg |
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What is base flow? |
The normal river capacity |
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How does basin size affect the hydrograph? |
In a small basin rain will be gathered and transferred quickly resulting in a short period of storm flow |
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What is abrasion? |
Rock fragments in the load wearing down the river's bed and banks |
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What is hydraulic action? |
The erosive power of the water itself |
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What is solution?
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When rocks and minerals are dissolved by the river
Chemical |
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What is attrition? |
The wearing down of the load itself |
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What is a riffle? |
A section of shallow water Deep Smooth flow Deflect river towards a bank |
