hydrographs Flashcards
1
Q
lag time
A
max rainfall - max discharge
2
Q
tributaries
A
GRL - few tributaries because there isn’t much water so it doesn’t move quickly
SRL - lots of tributaries as water is moving fast
3
Q
drainage size
A
longer - larger drainage basin as travelling more to get to river
shorter - smaller drainage basin as travelling less to get to river.
4
Q
saturation
A
SRL - soil has reached saturation which results in increased surface runoff
5
Q
geology
A
GRL - permeable rock which allows water to go through other processes (eg. through flow) before it reaches river
SRL - impermeable rock increased surface runoff as no water can soak through
6
Q
rainfall
A
recession limb as no new water is entering the river as it has stopped raining
