Abstract

The peri-urban catchments are distinguished by discontinuous urban extensions. They extend between the margins of the city and the borders of the rural space forming a mid-urban, mid rural mosaic. They experience unprecedented expansion movement since the end of the 60 years. When hydrological models for urban and for rural catchments have been developed, it was until recently impossible to apply those principles in a concrete manner to peri-urban catchments. The representation of the hydrological functioning of these surfaces can be done by considering both urban processes and rural processes. In this paper, we present the simulation model named “Multi-Outlets model”. This model allows taking into account the mixed nature of peri-urban areas. The model was applied to Yzeron catchment located in Lyon, France.

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