We have a catchment with a total area of 9.0 km2, where the runtime principle applies. The area is subdivided in 5 regions (A1 to A5) in such a way that every individual area has a runtime of 30 minutes. The areas drain sequentially. A5 is at the top of the catchment and A1 at the bottom of the catchment near the outlet.
A1 A2 A3 A4 A5
Area (km2) 1.5 2.4 2.4 1.5 1.2
We assume that the rain falls uniformly over the catchment, and that the discharge starts immediately after the start of the rain. The discharge only occurs as a result of the net (i.e. effective) rain.
QUESTION 1 (1 point possible)
Assume rain with a net intensity of 4.5 mm/hr, that lasts (in theory) infinitely long. What will eventually be the discharge in [m³/s] at the outlet of the catchment? If applicable, round your answer to two decimals.
Enter the the discharge in [m³/s] :
2 answers
0.040*10^6 m^3
Q5 = P1A1+P2A2+P3A3+P4A4+P5A5
Q5 = 11.25 m3/s
Q5 = 11.25 m3/s
1 answer