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Models of runoff water quality at the scale of an urban catchment usually rely on buildup/washoff formulations obtained through small-scale experiments. Often, the physical interpretation of the model parameters, valid at the small-scale, is transposed to large-scale applications. In this communication the parameter distributions of a water quality model are analyzed according to different levels of spatial variability of the parameters. The simulated variable is the total suspended solid concentration at the outlet of a periurban catchment in the Paris region (2.3 km²). This application suggests that buildup/washoff models applied at the catchment-scale do not maintain their physical meaning, but should be considered as “black-box” models.
|Title of host publication||Proceedings of the 10th International Urban Drainage Modelling Conference|
|Publication status||Published - Sep 2015|
|Event||10th International Urban Drainage Modelling Conference (UDM) - Québec, Mont-Saint-Anne, Canada|
Duration: 20 Sep 2015 → 23 Sep 2015
|Conference||10th International Urban Drainage Modelling Conference (UDM)|
|Period||20/09/15 → 23/09/15|
Claeys, P. & Petrucci, G.
1/01/14 → 31/03/17
The dilemma of spatial representation for urban hydrology semi-distributed modelling: Trade-offs among complexity, calibration and geographical dataPetrucci, G. & Bonhomme, C., 27 Jun 2014, In : Journal of Hydrology. 517, p. 997-1007 11 p.
Research output: Contribution to journal › Article