Junior Researcher since 2025/10 Ph.D. student: 2022/05 – 2025/09. Extreme events in French Overseas territories: physical mechanisms and forecasting tool development for on synoptic to subseasonal scales. Centre National de Recherches Météorologiques, Université de Toulouse, Météo-France, CNRS, Toulouse, France FCPLR : Formation Complémentaire Par La Recherche Main characteristics of extreme rainfall, role of tropical cyclones, identification with AI of weather patterns associated with these events, and how to increase their predictability. Weather forecaster : 2021/09 – 2022/04, Météo-France, Strasbourg. User-oriented forecasts for cities, motorway services, departmental councils, … Master’s degree in Geosciences: 2020-2021. École Normale Supérieure, Paris, France Meteorology Engineer – Civil servant: 2018-2021. École Nationale de la Météorologie, Toulouse, France
My main areas of interest are as follows: Understanding rainfall variability and large-scale tropical dynamics, with a focus on intraseasonal variability (Madden-Julian Oscillation, convectively coupled equatorial waves, etc.) How these modes of variability can interact to create a favorable environment that triggers high-stakes events, such as extreme rainfall events, which are currently poorly predictable. Automatic classification of all atmospheric configurations — weather patterns — that can lead to these events (Self-Organizing Maps): how the large-scale can impact the local scale. Explore the potential increase in the predictability of these events by following these large-scale modes of variability. Process-oriented evaluation of climate models’ capacity to represent all these structures and interactions, with an emphasis on extreme rainfall events Even if I explore the entire tropical belt, my Ph.D. work focuses on French Overseas Territories: French Guiana and French West Indies in the Atlantic Ocean Mayotte and La Réunion in the southwestern Indian Ocean New Caledonia, Wallis & Futuna, and French Polynesia in the South Pacific Ocean I also worked on the West African Monsoon during former internships.
Jonville T, Cornillault E, Lavaysse C, Peyrillé P, et Flamant C. « Distinguishing North and South African Easterly Waves with a Spectral Method: Implication for Tropical Cyclogenesis from Mergers in the North Atlantic ». Quarterly Journal of the Royal Meteorological Society 151, no 767 (2025): e4909. https://doi.org/10.1002/qj.4909. Moron V., Cornillault E., Ali H., Fowler H. J., et Robertson A. W. . « A Climatology of Local Hourly Wet Spells across the Tropics ». Climate Dynamics 63, no 6 (juin 2025): 244. https://doi.org/10.1007/s00382-025-07714-8. Cornillault E, Peyrille P, Couvreux F, Roehrig R, Large-scale drivers of extreme precipitation events over tropical islands Geophysical Research Letters, 51 (15) https://doi.org/10.1029/e2024GL108770
Tropical meteorology (30h). École Nationale de la Météorologie, Toulouse Teaching ENM students about the main themes of tropical meteorology: climatology and main features, energy budget, large-scale variability (interannual to synoptic), tropical cyclones, and interaction with midlatitudinal phenomena.
