#$1[10$ points$]$

Given below are the measured streamflow in cfs from a storm of $6-$hour duration on a stream having a drainage area of $185m{i}^2.$ Derive the unit hydrograph $($UH$)$ by the inverse procedure. Assume a constant baseflow of $550cfs.$

$\backslash$table$[[$Hour$,$Day $1,$Day $2,$Day $3,$Day $4],[$Midnight$,550,5,000,1,900,550],[6$ am$,600,4,000,1,400,],[$Noon$,9,000,3,000,1,000,],[6pm,6,600,2,500,750,]]$

#$2[10$ points$]$

The rainfall excess derived from the weighted$-$average daily rainfall in a basin are indicated below. The $24-$hr unit hydrograph from the observed data in the basin is also given. Estimate the daily streamflow. A constant baseflow of $20\frac{m^3}{s}$ has been estimated.

$\backslash$table$[[$Date$,$ July $2006,6,14,18],[$Rainfall excess $($mm$),28,5\mathrm{.}2,48\mathrm{.}5]]$

Unit Hydrograph:

$\backslash$table$[[$Time $($days$),0,1,2,3,4,5,6],[$Flow $(\frac{m^3}{s}),0,1\mathrm{.}5,11\mathrm{.}6,7\mathrm{.}7,5\mathrm{.}0,2\mathrm{.}3,0]]$