Q$(($m$^(3))/($s$))=$

$110$H$^(1\mathrm{.}5),$ where H$($m$)$ is the head over the spillway. The reservoir surface area is $7\mathrm{.}5$km$^(2)$

and increases linearly by $1\mathrm{.}5$km$^(2)$ per meter rise of water level above crest level. If the

water level in the reservoir initially was at the spillway crest, route the inflow hydrograph

using Modified Puls method. Plot the two hydrographs and find peak discharges,

attenuation, and lag.

GIVE EXCEL ANSWER AND PLOT TWO HYDROGRAPHS AND FIND PEAK DISCHARGE $,$ DO PLOT THE GRAPHS