ECMWF Annual Seminar 2026

The ECMWF Annual Seminar is the centre's flagship scientific meeting, and the 2026 edition in Reading is themed 'Advancing the assimilation of Earth system observations with new methodology and Machine Learning'. It explores how the deployment of machine-learning technology is changing the way observations are assimilated for weather prediction, atmospheric composition and climate reanalysis.

Over five days, invited speakers cover ML emulation techniques, end-to-end machine-learning approaches and latent-space data-assimilation methods, blending tutorial-style lectures with cutting-edge research. Attendees are weather and climate scientists who want a deep, methodological view of where AI is taking data assimilation and Earth-system modelling. The strongly ML-centric 2026 theme makes this year's seminar a clear fit for AI applied to climate and environmental science.