Dr. Guillaume Chagnaud

Guillaume uses high-resolution numerical weather prediction models to study land-atmosphere interactions and humid heatwaves across the Tropics. His research focuses on how land surface states control the near-surface climate with a focus on heat stress. He has expertise in interrogating and interpretating cloud-resolving simulations of the coupled ocean-land-atmosphere system, combined with coarser-resolution climate projections and weather station data, to improve our understanding about the physical drivers of humid heat extremes. He also has expertise in statistical modelling of extreme rainfall and the development of (non-stationary) Intensity-Duration-Frequency curves. At the interface between physical sciences and societal impacts, his work aims at improving awareness about and preparedness to extreme weather events through collaborations with meteorological services in African countries (Kenya, Ghana, Senegal).

He completed a PhD at the University of Grenoble Alpes (France) on the detection, attribution, and projection of rainfall regime changes in the West African Sahel, after an MSc in atmospheric, land surface, and climate sciences.