Évaluation des effets thermiques des leviers d'action visant à réduire l'îlot de chaleur urbain : l'exemple de Dijon.

Abstract : Climate Change and Urban Heat Island (UHI) combine their effects and lead to increased frequencies and intensities of heat waves in urban environments. Considering the associated public health issues, several actions are possible: the color of the materials, the development of water surfaces or urban vegetation. In Dijon, a network of 60 stations makes it possible to evaluate the potential of these three actions. Analysis of the warm summer 2016 season reveals that the refreshing role of water only occurs during daytime, the effect of bright surfaces (concrete versus bitumen) on the air temperature is only a few tenths of a degree, while vegetation offers the largest refreshing potential. Its magniture is about 4°C when the early night UHI is well developed, i.e. warm, sunny and calm weather under anticyclonic conditions.
Keywords : UHI vegetation water albedo
Document type :
Conference papers
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https://hal.archives-ouvertes.fr/hal-01585069
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Submitted on : Monday, September 11, 2017 - 10:34:27 AM
Last modification on : Thursday, October 17, 2019 - 12:35:59 PM

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  • HAL Id : hal-01585069, version 1

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Yves Richard, Benjamin Pohl, Julien Pergaud, Sébastien Zito, Mario Rega, et al.. Évaluation des effets thermiques des leviers d'action visant à réduire l'îlot de chaleur urbain : l'exemple de Dijon. . 30ème Colloque de l'Association Internationale de Climatologie, Jul 2017, Sfax, Tunisie. pp.167-172. ⟨hal-01585069⟩

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