Beaumet, Julien

High-resolution simulation of the Alpine climate between 1850 and 2050
Postdoc WP3

My researches focus on the downscaling of climate projections and the reconstruction of recent climate using both regional climate model and variable resolution global atmospheric models. I am also involved in the development and application of new bias-correction techniques aiming at reducing the uncertainties generally associated with late 21st century climate projection with particular interest for atmospheric general circulation and oceanic surface conditions. 

I graduated as MSc degree in Climatology at the University of Liège in 2012, where I also worked for more than two years in the PREMASOL project aiming at the generation of tailored weather forecasts for the estimation of photo-voltaic solar panels production using among others, MAR model. I joined IGE in November 2015 and completed my thesis on “Antarctic climate change : studies with an atmospheric global circulation model at regional high-resolution” in December 2018. During my PhD, I improved bias-correction method for oceanic surface conditions and applied run-time empirical bias-correction in order to increase model skills for atmospheric general circulation in the Southern Hemisphere. Most of this worked has been achieved using ARPEGE, the atmospheric model from Météo-France, in a stretched grid set up. This new approach is a promising alternative for the generation of global climate projection before their downscaling with regional climate models.

I joined Trajectories project as a post-doc in January 2019. My work will mainly consists in the generation of very high-resolution (7 kms) climate reconstruction of the Alps since the 1850s using regional climate model MAR and climate reanalyses. Climate projection for the 21st century will be generated as well, using both “raw” and corrected climate projections coming from global climate models to drive MAR RCM at its boundary. The application on MAR RCM output of a posteriori adjustment method such as the ADAMONT method developed at CEN will also be part of the project. My researches will aim at a better understanding of the evolution of the Alpine climate and its variability over the last 150 years and better constraining its possible evolution in the coming decades. Thanks to the multi-disciplinary dynamic of the Trajectories project, I should also be involved in a better use of climate data in the context of identifying relation and feedback between the climate, the natural environment and the human activities in the French Alps.

Publié le 16 mai 2019