hydrographs Flashcards
1
Q
what do the three bars on the bottom left show
A
the storm event
2
Q
what Is base flow
A
the amount of water that would naturally be in the river without the storm
3
Q
what s lag time
A
time taken from peak rainfall to peak discharge
4
Q
what is falling limb
A
throughflow is slow
5
Q
what is a rising limb
A
how quickly a river responds to a flood
6
Q
what is bankful discharge point
A
where the river will overflow
7
Q
what is a flashy hydrograph
A
- short lag time
- high peak
- steep rising limb
- steep falling limb
8
Q
what is a subdued hydrograph
A
- long lag time
- gentle rising
- gentle falling
- low peak
9
Q
what is a annual hydrograph
A
-reflects inputs of precipitation by type, season and characterisitcs of the bason
10
Q
what is a flood hydrograph
A
-short term discharge of a river in relation to a specific event
