COMPUTATION OF RUN-OFF

  • The Run-off available from a basin can be compute daily, weekly, monthly, or yearly.
  • The following are the methods which can be used for finding out the run-off
  1. Using empirical formulae and tables
  2. Infiltration characteristics method
  3. A rational method, and
  4. Unit hydrograph method.
  • All these methods have been explaine separately.