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Article

Silting in the Grand Canal in the Domain of Chantilly (Oise, France)—Catchment-Scale Hydrogeomorphological Reconnaissance and Local-Scale Hydro-Sedimentary Transport Modelling

ULR 4477, TVES–Territoires Villes Environnement & Société, University Lille, University Littoral Côte d’Opale, F-59000 Lille, France
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Author to whom correspondence should be addressed.
Academic Editors: Michele Iervolino and Cristiana Di Cristo
Water 2021, 13(14), 1989; https://doi.org/10.3390/w13141989
Received: 12 May 2021 / Revised: 11 July 2021 / Accepted: 14 July 2021 / Published: 20 July 2021
(This article belongs to the Special Issue Fluvial Hydraulics and Applications)
The domain of Chantilly (Oise, France) includes a castle and a garden, both dating from the eighteenth century, which are seen as important legacies of France’s history. Nowadays, the 2.5 km canal that runs through the domain is subject to the phenomenon of silting, leading to the accumulation of sediments within the canal linked to the proliferation of algae, which has a dissuasive effect among visitors. HEC-RAS software (Hydrologic Engineering Centers River Analysis System, US army corps of Engineers, Washington, D.C., USA) was used to model and understand sediment accumulation within the canal. This model is widely used in the literature tackling sediment transport and accumulation, and allows the forecasting of which stretches of the canal are most susceptible to sediment accumulation. The simulation results highlight an accumulation of sediment near the entrance of the Nonette stream into the canal and a propagation through the canal. The total accumulated volume assessed by the model between 2001 and 2010 equals 3901 m3, when the reconnaissance of the catchment showed the sediment was not a limiting factor. However, the volumes determined are underestimated, as matter brought by vegetation or other systems different from the river (e.g., wind, rainfall) is not considered in the calculation. The quantity of sediment is also subject to uncertainties, as the bathymetry of the canal is not available. View Full-Text
Keywords: sediment; catchment; HEC-RAS; canal; Chantilly sediment; catchment; HEC-RAS; canal; Chantilly
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MDPI and ACS Style

Chevalier, G.G.; Locatelli, F.; Masson, E.; Blanpain, O. Silting in the Grand Canal in the Domain of Chantilly (Oise, France)—Catchment-Scale Hydrogeomorphological Reconnaissance and Local-Scale Hydro-Sedimentary Transport Modelling. Water 2021, 13, 1989. https://doi.org/10.3390/w13141989

AMA Style

Chevalier GG, Locatelli F, Masson E, Blanpain O. Silting in the Grand Canal in the Domain of Chantilly (Oise, France)—Catchment-Scale Hydrogeomorphological Reconnaissance and Local-Scale Hydro-Sedimentary Transport Modelling. Water. 2021; 13(14):1989. https://doi.org/10.3390/w13141989

Chicago/Turabian Style

Chevalier, Guillaume G., Florent Locatelli, Eric Masson, and Olivier Blanpain. 2021. "Silting in the Grand Canal in the Domain of Chantilly (Oise, France)—Catchment-Scale Hydrogeomorphological Reconnaissance and Local-Scale Hydro-Sedimentary Transport Modelling" Water 13, no. 14: 1989. https://doi.org/10.3390/w13141989

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