Key Words Flashcards
Abstraction
Removal of water from rivers, lakes and ground water for human use.
Base flow
The normal discharge of a river
Channel
The feature in which the river flows
Channel network
The system of tributary steaks that join increasingly larger river channels in a drainage basin
Dam ( reservoir)
A barrier built across a valley that interrupts water flow and creates a man made lake to store water.
Discharge
The quantity of water that passes a certain point on a stream or river bank within a given period of time.
Drainage basin
The area drained by a river and it’s tributaries, bounded by a watershed.
Erosion
The wearing down of land, by wind water and gravity.
Flood
When river discharge exceeds river channel capacity and spills onto flood plains and other areas .
Floodplain
The part of a valley floor ove which a river spreads during seasonal flows
