Modelling and investigation of ionospheric processes

The ionosphere-thermosphere system is influenced by various atmospheric processes. These coupling processes from below contribute significantly to the natural variability of the ionosphere. The goal of the Atmosphere Coupling Processes topic is to better understand the energy transfer between the ionosphere and the underlying atmosphere. The work is largely based on the analysis of local and global observational data with current mathematical and computer-based methods and in combination with physical models. With its work, the Terrestrial Coupling Processes topical area contributes to the further development and improvement of data-based models and predictions. Such predictions would help users of communication and navigation systems, among others.

To understand and assess the coupled thermosphere-ionosphere-magnetosphere system, there is no alternative to physics-based modelling. The Physical Modelling theme addresses the development and validation of scientific and real-time numerical models that reproduce the complex nonlinear interaction processes in and between the thermosphere, ionosphere and magnetosphere. Data assimilation skills and methods are developed to describe the actual state of the thermosphere and ionosphere holistically and to improve the accuracy of predictions. These competences are essential for the analysis of the coupling processes on the one hand and for the prediction services offered at the IMPC on the other hand. We are a competent partner for validation of models and data.