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RESEARCH PRODUCT
Urban Heat Island (UHI) and heat waves: what relations?
Yves RichardMario RegaBenjamin PohlJulien PergaudJustin EmeryThibaut VairetJulita Diallo-dudekSébastien ZitoDenis TheveninThomas Théveninsubject
heat wavecaniculeUrban Heat Island (UHI)[SDU.STU.CL] Sciences of the Universe [physics]/Earth Sciences/Climatologyvegetation[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/ClimatologyDijondéphasageÎlot de Chaleur Urbain (ICU)lagvégétationdescription
With four years of measurements and alarge sample of stations, the MUSTARDijon network allows for a detailed characterization of the Urban HeatIsland (UHI), a warm season phenomenon. But UHI and maximum temperature values are out of phase at twodistinct time-scales. Seasonally, the maxima of UHI occur from May to July, i.e. before the annual peak oftemperature (July to August). At a daily time-scale, analysis of the two heat waves of July 2015 shows a lag of afew 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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-07-04 |