H2: CME structure, evolution and propagation through heliosphere


Manuela Temmer (University of Graz, Austria), Manuela.Temmer@uni-graz.at


Mario M. Bisi  (Rutherford Appleton Laboratory, UK), Mario.Bisi@stfc.ac.uk


  • CME propagation behavior (drag force, arrival characteristics at targets)
  • Variability of space environment (preconditioning)
  • Geospace energy input (impact of transient events)


Coronal mass ejections (CMEs) are energetically the most powerful phenomena in the solar system. Most of the times related to solar flare emissions, CMEs consist of magnetic field and plasma that is impulsively ejected into interplanetary space. To make progress in improving current state-of-the-art CME propagation models, validation and scientific peer-review qualification is needed. iSWAT is an international, community driven effort and provides the required platform to challenge our models and to exchange our experience with peers in order to improve our work.

Challenges and Call for Participation: 

Together we work on main open issues such as the reliable measurements of crucial parameters to feed propagation models: CME 3D geometry/propagation direction/kinematics and (pre-)structuring of interplanetary space.

Essential Space Environment Quantities / Forecasting Problems:  

  • CME arrival time at L1
  • Plasma parameter at L1 (speed and density)
  • IMF Bz at L1

Action topics:

For list of action topics please click "Read more":