This is a hydrology course question.

During a $10$ hour rainfall, precipitations in Table are observed.

Table: Precipitations $($mm$)$

hour

total precipitation $($mm$)$

$0-2$

$32+$X

$2-4$

$20+$X

$4-6$

$6+$X

$6-8$

$18+$X

$8-10$

$6+$X

X $=9$

a$)$ Considering that initial infiltration capacity is $30$ mm$/$hour$,$ limit value of

infiltration capacity is $5$ mm$/$hour$,$ Horton parameter $--$k$--$ is $0\mathrm{.}3,$ calculate total

infiltration and direct runoff.

b$)$ Assuming that depression and interception losses are ignorable, calculate o and w

During a $10$ hour rainfall, precipitations in Table are observed.

Table: Precipitations $($mm$)$

$\backslash$table$[[$hour$,0-2,2-4,4-6,6-8,8-10$ indices.