Variabilité quotidienne et saisonnière de l'îlot de chaleur urbain à Rennes : premiers résultats du programme ECORURB

Variabilité quotidienne et saisonnière de l'îlot de chaleur urbain à Rennes : premiers résultats du programme ECORURB

[SHS:GEO] Humanities and Social Sciences/Geography

îlot de chaleur

climatologie urbaine

Rennes

This paper presents the first results of the research program ECORURB (Ecology Rural to Urban) of which one of the objectives is to measure the impact of the city on the local climate. For this study, a network of 16 automatic weather stations was installed according to a gradient from downtown area to periphery countryside. The results show the temporal variability of the UHI (urban heat island). Thus, in 2006, the intensity of the UHI was especially marked at the end of the night during the summer (more 2,5°C on average of 22:00 to 5:00 in July against 1 to 1,3°C during the winter). On the other hand, during the day, the time average deviations between the downtown area and the countryside do not exceed some tenth of degrees.

Dubreuil, Vincent

Quénol, Hervé

Planchon, Olivier

Clergeau, Philippe

Actes du XXIème colloque de l'Association Internationale de Climatologie

XXIème colloque de l'Association Internationale de Climatologie

2008

FRE

conference proceeding

http://hal.archives-ouvertes.fr/hal-00325276

http://hal.archives-ouvertes.fr/docs/00/32/52/76/PDF/dubreuil-AIC-2008-ecorurb.pdf

Montpellier

France