Part $2$: Hydrograph Separation

A small watershed has an area of $2k{m}^2.$ The hydrograph below shows the response following a half$-$hour rainfall event $($at a rate of $10m\frac{m}{h}r).$ You will use the simplified hydrograph below to answer the following questions.

a$.$ What is the total rainfall depth that fell in the storm in mm $?(2$ pts$)$

b$.$ What is the rainfall volume that fell on the watershed in $m^3?(2$ pts $)$

$5\mathrm{.}0mm|\frac{1(mm)}{1,\mathrm{.}000(mm)}|0\mathrm{.}0050m$

c$.$ What is the baseflow discharge in $\frac{m^3}{s}?(2$ pts $)$

$0\mathrm{.}005\frac{m}{s}$

d$.$ What is the total stormflow volume in $m^3$ for the stream due to the rainfall event

above? $($Hint $1$: You will calculate the area under curve for the stormflow peak. Hint $2$:

The area for a triangle is $($base$*$height$)/2.$ Hint $3$: Keep track of your units when you

calculate the area.$)(4$ pts$)$

e$.$ What is the stormflow discharge per unit area $($i$.$e$.$ equivalent water depth of rainfall

excess$)$ for this watershed in mm$?(2$ pts$)$

f$.$ What proportion of the precipitation that falls on the land surface ends up as stormflow

in this watershed? $(3$ pts$)$

g$.$ At the peak of this storm hydrograph, what is the discharge generated per mm of

effective rain? $($Unit should be $\frac{m^3}{s}\frac{?}{mm})(3$ pts$)$