EGU21-13048
https://doi.org/10.5194/egusphere-egu21-13048
EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Modeling the magnetic structure of CMEs in the inner heliosphere based on data-driven time-dependent simulations of active region evolution

Jens Pomoell, Emilia Kilpua, Daniel Price, Eleanna Asvestari, Ranadeep Sarkar, Simon Good, Anshu Kumari, Sanchita Pal, and Farhad Daei
Jens Pomoell et al.
  • University of Helsinki, Finland

Characterizing the detailed structure of the magnetic field in the active corona is of crucial importance for determining the chain of events from the formation to the destabilisation and subsequent eruption and propagation of coronal structures in the heliosphere. A comprehensive methodology to address these dynamic processes is needed in order to advance our capabilities to predict the properties of coronal mass ejections (CMEs) in interplanetary space and thereby for increasing the accuracy of space weather predictions. A promising toolset to provide the key missing information on the magnetic structure of CMEs are time-dependent data-driven simulations of active region magnetic fields. This methodology permits self-consistent modeling of the evolution of the coronal magnetic field from the emergence of flux to the birth of the eruption and beyond. 

In this presentation, we discuss our modeling efforts in which time-dependent data-driven coronal modeling together with heliospheric physics-based modeling are employed to study and characterize CMEs, in particular their magnetic structure, at various stages in their evolution from the Sun to Earth. 

How to cite: Pomoell, J., Kilpua, E., Price, D., Asvestari, E., Sarkar, R., Good, S., Kumari, A., Pal, S., and Daei, F.: Modeling the magnetic structure of CMEs in the inner heliosphere based on data-driven time-dependent simulations of active region evolution, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-13048, https://doi.org/10.5194/egusphere-egu21-13048, 2021.

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