Problem$-1$

The initial infiltration capacity fo of a watershed is estimated as $4\mathrm{.}5m\frac{m}{h},$ and the constant factor is taken to be $0\mathrm{.}35,$ the equilibrium $($final$)$ capacity $f_c$ is $0\mathrm{.}4m\frac{m}{h}.$ Use Horton's equation to find;

a$)$ The values of $f$ at $t=10$min,$30$min,$1hr,2hrs,$ and $6hrs.$

b$)$ The total volume of infiltration area over $6hrs$ period.

c$)$ Draw the relation between the time$/h$ and the infiltration rate $m\frac{m}{h}$ and hachuring the area

$6$

Problem$-2$

Using the given results and equations of the double ring infilteration test As shown in the table below, calculate the missed values in the table.

Problem$-3$

A field experiment was carried out in Al Ain area at different soil types and the results were:

a$)$ The infiltration rates of sand dunes around $Al-$Ain city range from $10m\frac{m}{m}in$ to $25m\frac{m}{m}in,$

b$)$ and those of interdune areas and gravel plains vary between $1\mathrm{.}6m\frac{m}{m}in$ and $6\mathrm{.}0m\frac{m}{m}in.$

$>$ Define which infiltration rate is more than the other and write why?

Try to implement a classic design for the double ring infiltrometer using the above$-$mentioned informations.

Problem$-4$

Uae the given data and cacullate the IR$.$

Time

$3$:$11$ p$.$m$.$

$3$:$36$ p$.$m$.$

$4$:$29$ p$.$m$.$

$5$:$28$ p$.$m$.$

$1\mathrm{.}0$ in

$2\mathrm{.}0in$

$3\mathrm{.}75$ in

$5\mathrm{.}75in$

Please ibwant the answer for these $4$ problems separetaly