geomorphology Flashcards
what is a drainage basin?
acts as a system with inputs, flow, storage and outputs
what are the main features of drainage basins?
- catchment area
- river system
- watershed
- tributary
- river mouth
- source
- confluence
- water table
- surface run-off
- groundwater
- interfluve
- infiltration
what is a catchment are?
the area where rain falls and is caught by a drainage basin
what is a river system?
a main river with all its tributaries
what is a watershed?
an area of high ground separating two drainage basins
what is a tributary?
a river that joins another larger river
what is a river mouth?
a sea or lake where the river ends
what is a source?
where the river begins
what is a confluence?
the place where two rivers join
what is a water table?
the upper level of underground saturated rock
what is a surface run-off
the surface flow of water
what is groundwater?
water found under the ground
what is an interfluve?
a high-lying area or spurs between two river valleys
what is infiltration?
the movement of water through soil into the ground
what are the different types of rivers?
- permanent rivers
- periodic rivers
- episodic rivers
- exotic rivers
