The figure below presents the GR4J model (in French, modèle du Génie Rural à 4 paramètres Journalier). More recent versions of the model exist: with five parametres (GR5J; Le Moine, 2008) and six parametres (GR6J; Pushpalatha, 2013). They were developed to provide a better simulation of low flows.

https://webgr.inrae.fr/wp-content/uploads/2013/04/image0021.gif

With:

  • Interception = interception
  • Réservoir de production = production store
  • Réservoir de routage = routing store

The functioning of the GR4J model is detailed here.

To know more: check our publications.

Softwares:

See also: