Rivers, Floods & Management: The Drainage Basin & Hydrological Cycle

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  • Created by: 10bele
  • Created on: 10-11-15 18:08
Hydrological Cycle
Continous flows of water between the Earth's surface and atmosphere. Clouds - Vegetation - Ground - Soil - Rock - Sea - Clouds
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Evapotranspiration
Combined loss of water from plants from evaporation and transpiration.
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Groundwater Flow
Flow of water through rocks.
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Condensation
Process where water changes from liquid to water.
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Precipitation
The movement of water from the atmosphere to the ground. Precipitation may be in many forms including rain, snow and hail.
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Evaporation
Where the water changes state from liquid into vapour.
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Transpiration
Where the water goes up through the plants and is released into the air through the leaves.
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Infiltration
The movement of water from the ground surface into the soil.
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Percolation
(A flow) The movement of water out of the soil and into the rocks below.
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Interception
When water is prevented from falling directly to the ground. (e.g. canopy of leaves in a forest intercepts a rainfall).
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Surface Runoff
Water (from rain, snowmelt or other sources) that flows over the land surface.
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Soil Moisture Budgets
The balance of water in the soil; this is the net result of the combined effects of precipitation (P) and potential evapotranspiration (PE).
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Isolated Systems
No input or output of energy or matter - only the universe.
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Closed Systems
Input, output and transfer of energy but not of matter or mass - planet.
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Open Systems
Inputs and outputs of both energy and matter - most environmental systems.
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Channel Flow
The movement of water within a river channel.
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Drainage Basin
Drainage basins are local open systems. A drainage basin is an area of land drained by a river and its tributaries (river system). It includes water found in the water table and surface run-off.
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Dynamic Equilibrium
Rivers are constantly changing over time to reach a state of balance with the processes that determine their form. As the flows of energy and materials passing through a river system vary, the river changes to move towards this equilibrium.
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Other cards in this set

Card 2

Front

Combined loss of water from plants from evaporation and transpiration.

Back

Evapotranspiration

Card 3

Front

Flow of water through rocks.

Back

Preview of the back of card 3

Card 4

Front

Process where water changes from liquid to water.

Back

Preview of the back of card 4

Card 5

Front

The movement of water from the atmosphere to the ground. Precipitation may be in many forms including rain, snow and hail.

Back

Preview of the back of card 5
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