A 2-hour unit hydrograph can be approximated as trapezoidal as shown in figure. The unit hydrograph refers to catchment of area of ……….. km2.
Enter numerical value using the virtual keypad. Round off where necessary.
A 2-hour unit hydrograph can be approximated as trapezoidal as shown in figure. The unit hydrograph refers to catchment of area of ……….. km2.
Enter numerical value using the virtual keypad. Round off where necessary.