INPUT:

Units: SI (metric)

Catchment area:   4 km²

24-hr rainfall depth:   9 cm

Return period T:   10 years

Curve number CN:   74

Time of concentration t_c:   1.5 hr

Pond and swamp areas:   1%

Storm Type:   II

OUTPUT:

Selected Storm Type:   II

Calculated I_a/P ratio =   0.198

10-yr peak discharge Q_p =   12.09 m³/s

[See data in text: Example 5-9.].