Funded by the French National Research Agency (ANR-21-CE01-0002)
Coordinator: Florian Pantillon (LAERO) florian.pantillon@cnrs.fr
Objectives
Windstorms associated with extratropical cyclones belong to the most destructive natural hazards over Europe. While the synoptic and mesoscale dynamics of extratropical cyclones have been extensively documented, the processes leading to the formation of damaging wind gusts are not well understood and too small scale to be explicitly represented by numerical weather prediction models.
WINDGUST is structured around three objectives:
- Characterize the fine-scale processes responsible for the formation of wind gusts
- Quantify the sensitivity of wind gusts to the representation of surface processes
- Explore the feedback of local processes on extratropical cyclone dynamics
The methodology is based on “seamless” simulations of extratropical cyclones with the Meso-NH atmospheric model. Such simulations require high resolution over large domains to capture both fine-scale features and mesoscale dynamics, as well as advanced physical parameterizations and coupling with various surface models to capture complex interactions.
Participants
LAERO
Christelle Barthe
Sophia Brumer
Jean-Pierre Chaboureau
Juan Escobar
Nicolas Maury
Florian Pantillon (coordinator)
Joris Pianezze
Philippe Wautelet
Other laboratories
Marie-Noelle Bouin (CNRM)
Didier Ricard (CNRM)
Gwendal Rivière (LMD-ENS)
Former participants
Benjamin Doiteau Post-doc at LaMP since 2025
Wahiba Lfarh Post-doc at CNRM since 2024
Publications
- Escobar, J., Wautelet, P., Pianezze, J., Pantillon, F., Dauhut, T., Barthe, C., and Chaboureau, J.-P. (2024): Porting the Meso-NH atmospheric model on different GPU architectures for the next generation of supercomputers (version MESONH-v55-OpenACC), EGUsphere [preprint], https://doi.org/10.5194/egusphere-2024-2879 HAL https://anr.hal.science/hal-04728112v1
- Lfarh, W., Pantillon, F., Chaboureau, J.‐P., & Brumer, S. (2024). Impact of surface turbulent fluxes on the formation of roll vortices in a Mediterranean windstorm. Journal of Geophysical Research: Atmospheres, 129, e2023JD040191. https://doi.org/10.1029/2023JD040191 HAL https://anr.hal.science/hal-04252989v2
- Doiteau, B., Pantillon, F., Plu, M., Descamps, L., and Rieutord, T. (2024): Systematic evaluation of the predictability of different Mediterranean cyclone categories, Weather Clim. Dynam., 5, 1409–1427, https://doi.org/10.5194/wcd-5-1409-2024 HAL https://anr.hal.science/hal-04751722v1
- Pantillon, F., Davolio, S., Avolio, E., Calvo-Sancho, C., Carrió, D. S., Dafis, S., Gentile, E. S., Gonzalez-Aleman, J. J., Gray, S., Miglietta, M. M., Patlakas, P., Pytharoulis, I., Ricard, D., Ricchi, A., Sanchez, C., and Flaounas, E. (2024): The crucial representation of deep convection for the cyclogenesis of Medicane Ianos, Weather Clim. Dynam., 5, 1187–1205, https://doi.org/10.5194/wcd-5-1187-2024 HAL https://anr.hal.science/hal-04744926v1
- Lfarh, W., F. Pantillon, and J.-P. Chaboureau, (2023): The Downward Transport of Strong Wind by Convective Rolls in a Mediterranean Windstorm. Mon. Wea. Rev., 151, 2801–2817, https://doi.org/10.1175/MWR-D-23-0099.1 HAL https://anr.hal.science/hal-04252886v1