Titre : Radiative and Aerodynamic Phenomena in Urban Environments: How Does Geomatics Contribute to Enhancing Our Understanding and Prediction of These Phenomena? Auteurs : Thomas Leduc , Jérémy Bernard , Thomas Corpetti, Revue : Urban Risks Numéro : Issue 1 Volume : 8 Date : 2025/07/28 DOI : 10.21494/ISTE.OP.2025.1329 ISSN : 2516-1857 Résumé : The shape of a city, along with the layout of its streets, buildings, and green spaces, can significantly influence the flow of wind through open spaces and the amount of solar radiation received by various surfaces. Wind patterns and solar radiation directly impact urban overheating and the dispersion of pollutants, thereby affecting the quality of the urban environment and the comfort of its residents. The development of geomatics-based models that directly correlate characteristics of the built environment with wind and sunlight fields can aid in informing political decision-making. The aim of this article is to highlight the relationships between the calculation of specific physical variables and geomatics methods, to describe experiments in modeling the radiative and aeraulic physics of urban areas within the context of GIS, and to identify some of the scientific and technical challenges that remain in this field. Éditeur : ISTE OpenScience