Mechanics and energetics HM&CO. Hydrology meteorology and complexity A research lab of ENPC. The Hydrology Meteorology and Complexity Laboratory develops multi-scale analysis, multi-scale observations and complex systems approach to modelling. Its research aims to better understand and represent urban basins, with a focus on urban resilience. > Read more > Read more Research areas Physics of heterogeneity Hydro-meteorological risks Resilient city Key figures 7 permanent staff 3 postdoctoral students 6 PhD students 5 publications in 2024 more information > more information > HM&Co’s research focuses on Physics of Heterogeneity, Hydrometeorological Risks, and Resilient Cities, aiming to deepen the understanding of complex urban and geophysical systems. Its work explores the extreme variability of interactions across scales that drive the intermittency of these dynamical systems. By collecting and analyzing high-resolution data in urban environments using advanced experimental facilities, HM&Co assesses impacts, models upscaling scenarios, and studies stochastic phase transitions to refine the concept of multi-scale resilience. Beyond scientific discovery, HM&Co translates knowledge into practical applications, optimizing business processes and infrastructure management while improving decision-making on risk and resource trade-offs. Through this integrated approach, HM&Co contributes to building more resilient, adaptive, and sustainable urban systems.