Sat4BDNB : Providing indicators of urban overheating in France
- Creators
- Space for Climate Observatory
Description
The Sat4BDNB project is developing national indicators to quantify urban overheating, assess population vulnerability and understand the effectiveness of mitigation strategies. These measures are essential for anticipating and responding to the challenges posed by climate change at local level.
Details
To achieve this, the project cross-references the National Building Database (BDNB), which lists the characteristics of over 22 million residential buildings in France, with information derived from satellite images (Sentinel-2), such as albedo and land cover, to provide accurate and robust indicators related to urban climate at the community scale.
These include risk indicators such as the maximum intensity of the urban heat island (UHI) and the potential morbidity associated with heat stress. By integrating these data into the BDNB, decision-makers will be able to better guide their urban planning actions, giving priority to initiatives aimed at improving the energy performance of buildings, mitigating the effects of urban heat and reducing the vulnerability of the population. Performance indicators for the proposed mitigation strategies are also available.
The project focuses on several major French cities, including La Rochelle, Toulouse, Marseille, Montpellier, Nice, Paris and Strasbourg. These experimental areas offer a representative range of urban and climatic contexts encountered in France, enabling us to obtain results and indicators relevant to a wide variety of territories.
More
To learn more about the application please explore Space for Climate Observatory. Website is available in English and French.