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A pavement-watering thermal model for SOLENE-microclimat: development and evaluation

Abstract : In a dense urban area, pavement watering could be a solution to mitigate the Urban Heat Island. For now, mainly experimental studies have been used to evaluate watering techniques. In this study, a soil model dedicated to pavement watering has been developed within the urban climate model SOLENE-Microclimat. This watering model is presented and evaluated via a measurement campaign performed on an asphalt car park during hot days. The measurements campaign reveals that the surface cooling is mainly due to evaporation (80%). However, under warm conditions, the heat flux exchanged between the runoff water and the surface should also be modelled. Indeed, watering events are modelled through a runoff convective heat flux and a latent heat flux. The mean daily RMSE between estimated and observed surface temperature is 1.04 °C, 0.86 °C, 0.66 °C, 0.35 °C and 0.21 °C.
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Submitted on : Thursday, May 31, 2018 - 11:52:48 AM
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Marie-Hélène Azam, Jérémy Bernard, Benjamin Morille, Marjorie Musy, Hervé Andrieu. A pavement-watering thermal model for SOLENE-microclimat: development and evaluation. Urban Climate, Elsevier, 2018, 25, pp.22-36. ⟨10.1016/j.uclim.2018.04.005⟩. ⟨hal-01790917v2⟩



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