Webinaire du PEPR TRACCS "Combining physics and machine learning in hybrid climate models"

Chaque mois, TRACCS organise un webinaire afin de partager questionnements, controverses, idées et résultats scientifiques autour de la modélisation du climat et des services climatiques. Ce webinaire est prévu le vendredi matin de 11h à 12h.

Pour ce webinaire du 31 janvier 2025, Julien Le Sommer (CNRS) présentera l'association des sciences physiques et de l'apprentissage automatique dans les modèles climatiques hybrides.

Pour suivre le webinaire, connectez-vous à ce lien : 
https://meteo.webex.com/meteo/j.php?MTID=m2ccb9d71ee3a9743a8d5539c08d31183

In recent years, scientific machine learning has emerged as a transformative approach in climate science and geoscientific modeling. Among its most impactful applications are emulators for weather forecasting, which now rival traditional physics-based models in accuracy and efficiency. Beyond emulation, this paradigm shift has led to the development of hybrid climate models, where physics-based frameworks are augmented with trainable components, offering a new frontier in climate model design. 

After a quick review of the progress and challenges in this rapidly evolving field, with a focus on ocean climate models, this webinar will explore the benefits of hybrid modelling, from parameterisations to bias correction, and provide insights into the practical design of trainable components. Additionally, it will address the technical complexities of integrating these components with existing model architectures. 

Looking ahead, Julien Le Sommer will argue that current hybrid models foreshadow a new generation of AI-native climate models, powered by differentiable programming. These models promise seamless integration of trainable components and transformative capabilities, but they also pose significant challenges. This presentation will highlight the expected benefits of this emerging class of models and discuss the roadmap to harnessing their full potential in advancing climate modelling.