CEDAR email: EGU session ST2.6: Multiscale Solar Wind–Magnetosphere–Ionosphere Coupling: Observations, Simulations, and Modeling

[Toshi Nishimura]

Dear colleagues,

We solicit presentations at the EGU session ST2.6: Multiscale Solar
Wind–Magnetosphere–Ionosphere Coupling: Observations, Simulations, and
Modeling. The abstract submission deadline is Thursday, 15 January 2026,
13:00 CET.

https://www.egu26.eu/session/57136

Session Abstract
The solar wind drives multiscale, cross-region, and cross-energy
interactions within Earth’s magnetosphere–ionosphere system, shaping the
dynamics of geospace. This session focuses on understanding these
interactions through observations and modeling approaches. At the global
scale, we aim to explore how geomagnetic storms and substorms respond to
solar wind drivers. At regional and mesoscale levels, we welcome studies on
plasma convection, magnetosphere–ionosphere current systems, magnetic
reconnection, boundary layer instabilities (e.g., Kelvin–Helmholtz), flux
transfer events, ULF waves, ionospheric convection, auroral arcs, and
related phenomena. Emphasis is placed on linking these processes to
specific solar wind conditions and elucidating their roles in system-level
responses. We invite contributions that integrate data from space missions
(e.g., THEMIS, Cluster, MMS, RBSP), ground-based observatories (e.g.,
SuperDARN, magnetometers, optical networks), and numerical or machine
learning models. This session supports the upcoming SMILE mission by
promoting studies aligned with its science goals on solar
wind–magnetosphere–ionosphere coupling.

Session Conveners
Lei Dai, C.-Philippe Escoubet, Rumi Nakamura, Colin Forsyth, and Yukitoshi
Nishimura
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