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13 Cards in this Set
- Front
- Back
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What is a drainage basin?
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The catchment area fro which a river system obtains its water. The watershed separates 2 drainage basins.
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What is precipitation?
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Water that falls from the atmosphere to the surface of the Earth (could be rain, sleet, snow, fog, mist etc.)
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What is infiltration?
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The passage of water into the soil. Takes place quickly at the start of a storm but slower as soil becomes more saturated. |
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What is stemflow?
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The water that runs down the stems and branches of trees and other plants during and after rainfall. Takes place after interception.
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What is throughfall?
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The water that drips off leaves when there is too much water. |
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What is interception? |
Where raindrops are prevented from directly reaching the soil surface. This happens as vegetation gets in the way.
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What is infiltration capacity? |
Maximum rate at which rainwater can be absorbed by a particular soil.
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What is throughflow?
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The water that moves downslope through the subsoil and is pulled by gravity.
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What is percolation?
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The downward movement of water within the rock under the soil surface.
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What is groundwater flow?
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The slowest transfer of water within the basin.
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What is overland flow?
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Water flowing over the land due to the water not being able to infiltrate the ground. |
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What is evaporation?
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Where water is turned into water vapour (requires a lot of energy) |
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What is evapotranspiration?
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The total amount of water removed by evaporation and transpiration from a vegetated land source.
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