rivers and coasts Flashcards
1
Q
What is the long profile of a river?
A
concave idealised path of a river from source to mouth
2
Q
What is the cross profile of a river?
A
What a river looks like across its valley and channel
3
Q
Cross sectional area
A
width * depth of river
4
Q
discharge
A
total amount of water passing a certian point in a river every second
5
Q
lateral erosion
A
side to side erosion of a river
6
Q
vertical erosion
A
downward cutting motion of a river in the upper valley
7
Q
features of a upstream cross profile
A
v-shaped valley
steep sides
shallow river
8
Q
features of downstream cross profile
A
much flatter
wider and deeper river
9
Q
source of river
A
where river starts, high in mountain or at spring
10
Q
mouth
A
where river meets sea/lake
