Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6576820 | Urban Climate | 2018 | 15 Pages |
Abstract
In a dense urban area, pavement watering could be a solution to mitigate the Urban Heat Island. So far, 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 warm days. The measurement 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 respectively at the surface, 5â¯cm-, 10â¯cm-, 34â¯cm- and 50â¯cm-depths.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Earth and Planetary Sciences (General)
Authors
Marie-Hélène Azam, Jérémy Bernard, Benjamin Morille, Marjorie Musy, Hervé Andrieu,