Shared Flashcard Set

Details

River Environment
Key Terms
26
Geography
10th Grade
01/11/2011

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Term
The taking of water form rivers, lakes and from below the watertable
Definition
Abstraction
Term
The usual level of a river
Definition
Base flow
Term
The pattern of linked streams and rivers within a drainage basin
Definition
Channel network
Term
A large structure, usually of concrete, sometimes earth, built across a river to hold back a large body of water (reservoir) for human use
Definition
Dam
Term
The quantity of water flowing in a river channel at a particular location and time
Definition
Discharge
Term
The wearing away and removal of materials by a moving force, such as running water
Definition
Erosion
Term
The dropping of material that was being carried by a moving force, such as running water
Definition
Deposition
Term
The flat land lying either side of a river which periodically floods
Definition
Flood plains
Term
A graph showing the discharge of a river over a given period of time
Definition

Hydrographs

 

Term
The global movement of water between the air, land and sea
Definition
Hydrological cycle
Term
A series of ridges projecting out on alternate sides of a valley and around which a river winds
Definition
Interlocking spurs
Term
A raised bacnk of material deposited by a river during periods of flooding
Definition
Levee
Term
The movement of weathered mateiral down a slope due to the force of gravity
Definition
Mass movement
Term
A winding curve in a river's course
Definition
Meander
Term
A horseshoe - shaped lake once part of a meandering river, but now cut off from it
Definition
Oxbow
Term
The presence of chemicals, dirt or other substances which have harmful or poisonous effects on aspects of the environment such as river and the air
Definition
Pollution
Term
An area where water is collected and stored for human use
Definition
Reservoir
Term
The seasonal variations int he discharge of a river
Definition
River Regime
Term
Features, such as lakes, rivers and aquifers, that receive, hold and release water
Definition
Stores
Term
The increase in stream velocity caused by a period of intense rainfall
Definition
Stormflow
Term
The speed at which water is flowing in a river channel at a given location and time
Definition
Stream velocity
Term
The movement of water between stores in the hydrological cycle
Definition
Transfers
Term
Where a river's water falls vertically, as where a band of hard rock runs across the river channel
Definition
Waterfall
Term
The boundary between neighbouring drainage basins
Definition
Watershed
Term
The breakdown and decay of rock by natural processes, without the involvement of any moving force
Definition
Weathering
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