Exploring the radial evolution of interplanetary coronal mass ejections using EUHFORIA

Coronal Mass Ejections (CMEs) are large-scale eruptions from the Sun into interplanetary space. Despite being major space weather drivers, our knowledge of CME properties in inner heliosphere remains constrained by scarcity observations at distances other than 1 au. Furthermore, most CMEs observed situ single spacecraft, requiring numerical models to complement sparse available. We aim assess ability linear force-free spheromak model EUHFORIA describe radial evolution CMEs, yielding new context for observational studies. one well-studied CME, and investigate its placing virtual spacecraft along Sun-Earth line simulation domain. To directly compare modelling results, we characterise signatures between 0.2 1.9 au modelled time series, exploiting techniques traditionally employed analyse real data. Results show that mean solar wind values is consistent with theoretical expectations. The expands as a consequence decaying pressure surrounding wind: expansion rapid within 0.4 au, moderate larger distances. early could not explain overestimated size simulation, suggesting this an intrinsic limitation geometry used. magnetic field profile indicates relaxation during propagation, while ageing probably substantial source asymmetry beyond also report wake significantly shorter suggested observations. Overall, provides description CMEs; nevertheless, improvements required better reproduce extension.