10.6. Rainfall-event data for a 121-ha catchment are given in Table 10.20 . Field experiments within the catchment have shown that losses are primarily by soil infiltration, which can be

characterized by a constant infiltration capacity. Use the data in Table 10.20 O with any appropriate method of base-flow separation to estimate the following: (a) the average (constant) infiltration capacity and hence the predominant soil group within the catchment; (b) the average curve number of the catchment; (c) the time of concentration; and (d) describe practical uses of the parameters calculated in this problem.