Section: Application Domains

Introduction

One application domain of the project-team is atmospheric chemistry. We take part to the development (in partnership with École des Ponts ParisTech and EDF R&D) of the air quality modeling system Polyphemus, which includes several numerical models (Gaussian models, Lagrangian model, two 3D Eulerian models including Polair3D) and their adjoints, and different high level methods: ensemble forecast, sequential and variational data assimilation algorithms.

The activity on assimilation of satellite data is mainly carried out for meteorology and oceanography, but it is planned to extend it to agriculture. This research is addressed in cooperation with external partners who provide the numerical models. Concerning oceanography, the aim is to assess ocean surface circulation, by assimilating fronts and vortices displayed on image acquisitions. Concerning meteorology, the focus is on correcting the location of structures related to high-impact weather events (cyclones, convective storms, etc.) by assimilating image features.