The first part of the combined session is dedicated to the global magnetospheric dynamics. The state of the magnetosphere is controlled mainly by solar wind conditions. The interplanetary magnetic field (IMF) as well as solar wind plasma parameters regulate the energy input into the magnetosphere. While the IMF’s direction plays an important role in the coupling between the solar wind and magnetosphere, the questions remain on the effectiveness of the different plasma penetration mechanisms, their distribution at the magnetopause, and consequent global magnetospheric dynamics. Furthermore, the solar wind plasma parameters, such as density and velocity, may also change the magnetospheric state, but links between types of the solar wind structures and different magnetospheric modes need further investigation. The other open questions on the global magnetospheric dynamics include how the pre-conditioning of the magnetosphere changes its response to the solar wind impact and what are the roles of the ionosphere and ionosphere-magnetosphere coupling in the transition between magnetospheric modes. Global magnetospheric dynamics can be studied employing numerical simulations (MHD or kinetic), using empirical and semi-empirical models, and with the help of multipoint spacecraft observations. Besides, some past and future space missions can make global magnetospheric imaging providing information about positions and dynamics of the magnetospheric boundaries and global distribution of the ionospheric currents. We welcome any work presenting results on the global dynamics of the Earth’s magnetosphere as well as other planets’ magnetospheres.
The second part of the combined sessions is dedicated to the question how the Earth’s magnetosphere is affected by transient solar wind features. During the interaction between the solar wind transients and the Geospace system, important energy transfer and transport occur. Solar energy in various forms can propagate into the magnetosphere and ionosphere. In the meanwhile, charged particle energy can be transformed to electromagnetic energy, and vice versa. In-depth understanding of how the magnetosphere responds to transient solar wind features will enhance our knowledge on the solar wind-magnetosphere-ionosphere coupling. This special session will address the processes by which solar wind mass, momentum, and energy enter the magnetosphere. Regions of interest include the foreshock, bow shock, magnetosheath, magnetopause, cusps, the dayside magnetosphere, and the dayside ionosphere. This special session will provide a forum for the latest results from in-situ spacecraft observations, ground-based observations, and global simulations. Coordinated multi-point observations are especially encouraged. Planetary dayside Magnetospheric Interaction studies are also welcome.
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