Urban heat island intensity maps and local weather types description for a 45 French urban agglomerations dataset obtained from atmospheric numerical simulations
Abstract
This article presents a dataset of spatial nocturnal Urban
Heat Island (UHI) intensities for 45 French urban agglom-
erations, at a horizontal resolution of 250 m. The urban
influence on air temperature at 2 m above ground level
was obtained by coupling the mesoscale atmospheric model
Meso-NH with the land surface model SURFEX-TEB. For each
agglomeration, two specific local weather situations that
favour the development of a strong UHI in summer are sim-
ulated and described in a specfic sheet. Simulation outputs
have been postprocessed to 1) identify the time of day when
the UHI is the most developed, 2) to merge information
from both meteorological situations in order to obtain one
synthetic UHI map and 3) a geographical analysis that allows
to classify each city among five spatial UHI classes (Con-
centrated Very High Intensity; Concentrated High Intensity;
Limited Intensity; Dispersed High Intensity; and Dispersed
Cool Zones). This dataset can therefore be used for several
purposes, from the analysis at the scale of a city to the
comparison of the urban agglomerations among them.
Origin : Files produced by the author(s)