The last version of the GR2M model was developed by Mouelhi (2003).
The scheme of the GR2M model is presented below.
Evaporation = Evaporation
Réservoir de production = Production store
Réservoir de routage = Routing store
Extérieur du bassin = Outside the catchment
Its functioning is described here.
To know more: check our publications.
GR2M is available in an R-package airGR.