A 15-minute unit hydrograph is given in the following table. a) (5 points) Determine the corresponding area of the drainage basin. b) (20 points) Determine the 10-minute unit hydrograph. c)

(15 points) Determine the total runoff (streamflow) hydrograph resulting from the application of the following rainfall excess to the 10-min unit hydrograph, assuming the base flow is 2 m/s.