Use $3$ methods to create rainfall design hyetographs for Jefferson County Kentucky

Rainfall Design Event characteristics: Rainfall Duration $=24-hr,$

Rainfall Frequency $f=0\mathrm{.}01,$ Likelihood $=1\%,$ Average recurrence interval $T=100-yr$

Use a rainfall hyetograph time interval or time increment, $t=2$ hours.

Create a table and chart for each of these hyetograph types:

A$.$ Constant intensity event

B$.$ NRCS Type curve distribution $($use Type II rainfall hyetograph$)$

C$.$ Alternating Block distribution

Include these results:

a$)$ Summary computation table for each method including these columns and information:

Time, Time Interval, Accumulated Depth, Incremental Depth, Intensity, $\%$ Time, $\%$ Depth

$($accumulated$),\%$ Depth $($incremental$).$

b$)$ Create a time$-$line $(x=$ time$)$ plot comparing the $3$ methods accumulated depth.

c$)$ Create a bar chart comparing the $3$ methods incremental depth

d$)$ Describe differences and similarities between the $3$ methods

e$)$ Describe how runoff magnitude $Q$ from the watershed is expected to vary over time

under each rainfall pattern