SURFEX is a surface modelling platform developed by Météo-France.

SURFEX is composed of various physical models for natural land surface (including photosynthesis, biomass, soil carbon and wood), urbanized areas, lakes and oceans. It also simulates chemistry and aerosols surface processes and can be used for assimilation of surface and near surface variables.

SURFEX has its own initialisation procedure and can be used in stand-alone mode and coupled to atmospheric model.