Runoff & Hydrograph

The peak of flood hydrograph due to a 3 -hour duration storm in a catchment is $180 \mathrm{~m}^3 / \mathrm{s}$. The total rainfall depth is 6.6 cm . It can be assumed that the average infiltration loss is $0.2 \mathrm{~...

In the context of the effect of drainage density on the run-off generation and the hydrograph at the catchment outlet, all other factors remaining the same, pick one or more CORRECT statement(s) from the choices given be...

To derive the total flood hydrograph at a catchment outlet from an isolated storm, the order in which the following methods are applied, from the first method to the last method, is P. Obtaining the hyetograph Q. Additio...

The ordinates of a 1-hour unit hydrograph (UH) are given below. Time (hours) 0 1 2 3 4 5 Ordinates of 1-hour UH (m 3 /s) 0 13 50 80 95 85 Time (hours) 6 7 8 9 10 11 Ordinates of 1-hour UH (m 3 /s) 55 35 15 10 3 0 These o...

The ordinates of a one-hour unit hydrograph for a catchment are given below: $$ \begin{array}{|l|l|l|l|l|l|l|l|l|} \hline t(\text { hour }) & 0 & 1 & 2 & 3 & 4 & 5 & 6 & 7 \\ \hline Q\left(\mathrm{~m}^3 / \mathrm{s}\righ...

A two-hour duration storm event with uniform excess rainfall of 3 cm occurred on a watershed. The ordinates of streamflow hydrograph resulting from this event are given in the table. Time (hours) 0 1 2 3 4 5 6 7 Streamfl...