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Water 2016, 8(12), 606; doi:10.3390/w8120606

Development and Assessment of the Physically-Based 2D/1D Model “TRENOE” for Urban Stormwater Quantity and Quality Modelling

1
LEESU, MA 102, École des Ponts, Agro Paris Tech, UPEC, UPE, 77455 Champs-sur-Marne, France
2
Faculté de Génie, Université Libanaise, Campus Rafic Hariri, Hadat 6573, Lebanon
*
Author to whom correspondence should be addressed.
Academic Editor: Marco Franchini
Received: 5 October 2016 / Revised: 15 December 2016 / Accepted: 18 December 2016 / Published: 21 December 2016
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Abstract

The widespread use of separate stormwater systems requires better understanding of the interactions between urban landscapes and drainage systems. This paper describes a novel attempt of developing urban 2D-surface and 1D-drainage model “TRENOE” for urban stormwater quantity and quality modelling. The physically-based TREX model and the conceptual CANOE model are integrated into the TRENOE platform, highlighting that the roofs of buildings are represented separately from the surface model, but simulated as virtual “sub-basins” in the CANOE model. The modelling approach is applied to a small urban catchment near Paris (Le Perreux sur Marne, 0.12 km2). Simulation scenarios are developed for assessing the influences of different “internal” (model structure, numerical issues) and “external” (parameters, input data) factors on model performance. The adequate numerical precision and the detailed information of land use data are identified as crucial elements of water quantity modelling. Contrarily, the high-resolution topographic data and the common variations of the water flow parameters are not equally significant at the scale of a small urban catchment. Concerning water quality modelling, particle size distribution is revealed to be an important factor, while the empirical USLE equations need to be completed by a raindrop detachment process. View Full-Text
Keywords: urban stormwater modelling; urban water quality; 2D/1D modelling; physically-based model; spatially distributed model; TREX model; CANOE model; integrated modelling urban stormwater modelling; urban water quality; 2D/1D modelling; physically-based model; spatially distributed model; TREX model; CANOE model; integrated modelling
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Hong, Y.; Bonhomme, C.; Chebbo, G. Development and Assessment of the Physically-Based 2D/1D Model “TRENOE” for Urban Stormwater Quantity and Quality Modelling. Water 2016, 8, 606.

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