Question

An effective rainfall of 2-hour duration produced a flood hydrograph peak of 200 m3/s. The
flood hydrograph has a base flow of 20m3/s. If the spatial average rainfall in the watershed for
the duration of strom is 2 cm and the average loss rate is 0.4 cm/hour, the peak of 2-hour unit
hydrograph (in m3/s-cm, up to one decimal place) is​

Answer 1

Explanation:

hydrograph peak = 200 m3 /s

Base flow 20 m2 / s

therefore your answer is 149.0 to 151.0