Simulation of the direct runoff hydrograph at basin outlet Academic Article uri icon

abstract

  • A simple model describing the transformation of effective rainfall to direct runoff through the overland flow mechanism is presented. The model is based on the classical representation of a watershed by a combination of planes and channels. The dynamics of overland flow in each plane is simulated by the non-linear kinematic wave, but the outflow from a given plane is concentrated in the middle of the corresponding drainage channel. The water routing in the channels is carried out by a piece-wise linearized formulation in space of the kinematic wave approximation. Using synthetic events on 10 watersheds, the model was tested by comparing it with results obtained by applying the non-linear kinematic wave to all the elements of the watershed. The model was found to be adequate, even in a form that simplifies the geometric features of the planes through an averaging procedure based on a the Horton-Strahler ordering scheme of the watershed.

published proceedings

  • Hydrological Processes

author list (cited authors)

  • Melone, F., Corradini, C., & Singh, V. P.

citation count

  • 19

complete list of authors

  • Melone, Florisa||Corradini, Corrado||Singh, Vijay P

publication date

  • April 1998

publisher