Etude Pluridisciplinaire des Impacts du Changement climatique à l’Echelle de l’Agglomération parisienne

2003 heat wave study to evaluate the climate change impact at city scale, and the influence of the built on the urban climate.

Coordinator METEO FRANCE
CNRM-GAME contact Aude Lemonsu
Project web site
Funding Ville de Paris
Start date 2008
Duration 3 ans

EPICEA results

Final results are available (in french) : Download


The objectives of the EPICEA project are to evaluate the vulnerability of Paris to the evolution of urban climate within the context of climate change, and to assess the interactions between the urban planning of a large agglomeration and its local climate in order to propose relevant adaptation strategies.

 Project description

The project is organized in three sections :

1. Evolution of urban climate with climate change

30-year offline simulations using the TEB urban model will be conducted over Paris area by using meteorological forcing based on present-climate analyses (1970-2000) and climate projections (2070-2100) provided by GCM simulations (GIEC 2007 scenarios). This study aims at quantify the impact of climate change on air temperature within the city (felt by inhabitants).

Download section 1 report (in french)

2. Study of an extreme meteorological episode: the 2003 heat wave

In order to study local-scale impacts of climate change, a specific study of the 2003 heat-wave over Paris will be conducted. Actually, according to the GIEC, such heat-waves will become very frequent in Western Europe after 2050. High-resolution numerical simulations with the Meso-NH atmospheric model coupled to TEB will be performed in order to assess the spatial distribution of temperature within Paris. These results could be cross-analysed with information of excess of death rate provided by INSERM.

Download section 2 report (in french)

3. Link between urban planning and urban climate

The interactions between the urban infrastructures and the local climate will also be studied in order to identify the priority action areas in terms of urban planning. This study will help to propose relevant adaptation strategies for Paris in changing climate. These strategies will then be assessed by numerical simulations of the 2003 heat-wave.


  2. CSTB