Rivers Flashcards
What landforms do you find in the upper course of a river?
V-shaped valleys
Interlocking spurs
Waterfall
Gorge
What landforms do you find in the middle course of a river?
Oxbow lakes
Meanders
What landforms do you find in the lower course of a river?
Floodplain
Levées
Meanders
In what section of the river are you more likely to find lateral erosion?
Middle + Lower
In what section of the river are you more likely to find large boulders?
Upper
In what section of the river are you more likely to get deposition taking place?
Lower
How does the cross profile change downstream?
Channel gets deeper and wider
Valley becomes flatter
Define drainage basin
The area of land drained by a river and its tributaries
Define source
Where a river begins
Define Tributary
A small river or stream that joins the larger river
Define mouth
The end of the river
Where it meets the sea or a lake
Define confluence
Where two rivers meet and join to form one larger river
How many sections does a river have?
Name them
3
Upper
Middle
Lower
What does a long profile show?
The gradient of a river as it journeys from source to mouth
(how steep it is)
What does a cross profile show?
A cross section of a river’s channel AND valley as it journeys from source to mouth
Describe the long profile in the upper course of a river
Very steep
Describe the long profile in the middle course of a river
Becomes flatter
Describe the long profile in the lower course of a river
Almost flat
Flattest