Speaker
Description
Physics-based modelling of the large-scale dynamics caused by space-weather relevant Coronal Mass Ejections (CMEs) is conventionally carried out employing either a coronal or heliospheric approach. In the former, the dynamics all the way from the low corona to the heliosphere is modeled, while in the latter the simulation is started at heliocentric distances where the solar wind is characterised by super-Alfvénic outflow. Recently, we have successfully demonstrated an alternative to this paradigm, where the middle corona is included in the magnetohydrodynamic (MHD) model, encompassing a spatial domain starting at ~ 5 solar radii and extending out to the heliosphere. In this work, we present our on-going effort to exploit our time-dependent fully data-driven low-coronal model to provide key magnetic parameters of eruptions that are launched into the middle corona model. Combining the two methods provides a unique capability to efficiently perform data-driven dynamic modelling of CMEs from the low corona to the heliosphere. In this work, we present results of our modelling approach using multi-spacecraft observations to assess the performance of the model.
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