The long profile of a river - how the valley cross section changes Flashcards
1
Q
what are the three sections of the river called?
A
upper course
middle course
lower course
2
Q
what is the shape of the river in the upper course?
A
shallow and narrow channel
3
Q
what is the shape of the river in the middle course?
A
its wider and deeper than in upper course
4
Q
what is the shape of the river in the lower course?
A
its the widest and deepest of the courses
