Flood Hydrograph Flashcards
1
Q
What is the River discharge equation
A
Discharge (m3 per second) = cross sectional area (m2) x velocity (m per second)
2
Q
What is a storm hydrograph
A
A graph that shows how river discharge changes as a result of period of heavy rain
3
Q
What shows the base flow?
A
Starting and finishing levels of the river
4
Q
What is lag time?
A
Time delay between peak rainfall amount and the peak discharge
