Îlot de Chaleur Urbain et canicules : quelles relations ?

Abstract : With four years of measurements and a large sample of stations, the MUSTARDijon network allows for a detailed characterization of the Urban Heat Island (UHI), a warm season phenomenon. But UHI and maximum temperature values are out of phase at two distinct time-scales. Seasonally, the maxima of UHI occur from May to July, i.e. before the annual peak of temperature (July to August). At a daily time-scale, analysis of the two heat waves of July 2015 shows a lag of a few days between the peak of UHI and the heat wave. Two hypotheses are suggested to explain these lags: changes in radiative conditions and/or energy fluxes between the ground surface and the atmosphere.
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Conference papers
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https://hal.archives-ouvertes.fr/hal-01859192
Contributor : Rémi Laffont <>
Submitted on : Tuesday, August 21, 2018 - 5:30:38 PM
Last modification on : Wednesday, November 20, 2019 - 2:36:10 AM

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  • HAL Id : hal-01859192, version 1

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Yves Richard, Mario Rega, Benjamin Pohl, Julien Pergaud, Justin Emery, et al.. Îlot de Chaleur Urbain et canicules : quelles relations ?. 31ème Colloque de l'Association Internationale de Climatologie, Jul 2018, Nice, France. pp.213-218. ⟨hal-01859192⟩

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