A 4-hour unit hydrograph of a catchment is triangular in shape with base period of 60 hours. The area of catchment is 60 km2.
1
The peak discharge of 4 – hour unit hydrograph is 5.55 m3/min
2
The peak discharge of 4 – hour unit hydrograph is 5.55 m3/sec
3
If total runoff is 5 cm and base flow is 30 m3/sec. Peak flood discharge is 27.75 m3/sec
4
If total runoff is 5 cm and base flow is 30 m3/sec. Peak flood discharge is 57.75 m3/sec