Various mesoscale processes play a vital role in mediating the complex interactions across different regions in geospace. It is important to delineate their role from, and contribution to, large-scale and kinetic-scale processes, as well as to ascertain their impacts throughout the system. For example, the explosive process of dipolarization, which occurs on meso- and large-scales while also dissipating energy and accelerating particles via kinetic processes, is a significant component of particle transport and acceleration from the magnetotail plasma sheet to the inner magnetosphere, current generation in the magnetosphere-ionosphere system, and wave generation that further accelerates and/or scatter particles. It is imperative to couple the outer- and inner-magnetosphere with each other and the ionosphere by understanding these processes. This session solicits contributions using in situ and/or ground-based observations as well as global and regional models and theory that incorporate mesoscale processes to examine their impacts.

• AOGS: Asia Oceania Geosciences Society -
• EGU: European Geosciences Union -
• JpGU: Japan Geoscience Union -