The ordinates of a hydrograph of surface runoff resulting from 4.5cm of rainfall excess of duration 8 hours in a catchment are as follows. Determine the ordinates of the 8h unit hydrograph for this catchment. Tabulate your solution and plot the 8H-UH.
Extracted text: Discharge (m³/s) Time (h) 40 13 210 21 400 28 600 32 820 35 1150 41 1440 45 1510 55 1420 61 1190 91 650 98 520 115 290 138