Geospace as a system-of-systems: An orchestrated strategy and roadmap for scientific advancement and discovery in upcoming decades

Magnetospheric physics lacks a cohesive international scientific framework. To make substantial progress during the next decades, we suggest a coordinated, worldwide effort, which we call the International Geospace Systems Program (IGSP), to study Geospace as a system of systems, with particular emphasis on resolving mesoscale dynamics, where significant science questions remain.