Development of the Integrated Urban Hydrological Model URBS: Introduction and Evaluation of a Transfer Module in the Saturated Zone

Yinghao Li (1) , Fabrice Rodriguez (2) , Emmanuel Berthier (3)

1 Etablissement Public Paris-Saclay
2 IFSTTAR/GERS/EE - Eau et Environnement
3 CETE Ile-de-France, Département ville durable

Development in sustainable stormwater management in cities needs adapted modelling tools, which can consider urban water cycle in an integrated manner, by modelling hydrological fluxes as well as hydric state of the urban soil. The latter become particularly important when stormwater is handled with innovative point of view treating the resource or/and climatic aspects of rainwater. Yet circulations of rainwater within urban areas are complex and are not described in a detailed manner. Integrated urban hydrological models keep on being updated. This paper presents our work as a contribution to the development of such a model. A saturation module has been implemented to the integrated model URBS. The new model runs continuously at a short time step over long periods. Model evaluation is based on its capacity to reproduce saturation level and runoff measurements. This study shows the importance of modelling groundwater movement that is highly influenced by buried sewer networks. This attempt on module implementation demonstrates the potentiality of constructing integrated model by coupling existent models in appropriate ways.

Mots clés: Urban hydrology; groundwater drainage; integrated model; URBS; distributed; saturation

Domaines: Ingénierie de l'environnement; Hydrologie; Génie civil

Yinghao Li, Fabrice Rodriguez, Emmanuel Berthier. Development of the Integrated Urban Hydrological Model URBS: Introduction and Evaluation of a Transfer Module in the Saturated Zone. 13th International Conference on Urban Drainage (ICUD 2014), IAHR/IWA, Sep 2014, Kuching, Malaysia. ⟨10.13140/2.1.2818.6561⟩. ⟨hal-01404327⟩