Whitepaper #014 in the Decadal Survey for Solar and Space Physics (Heliophysics) 2024-2033. Main topics: basic research; infrastructure/workforce/other programmatic. Additional topics: ground-based missions/projects; other programmatic; user-need-driven basic space weather […]
The fundamental physical drivers and coupling processes underlying mid-to-large scale phenomena in the mesosphere and thermosphere are poorly understood due to a lack of cross-hemispheric, coordinated observations. The solution is a large network of ground-based instruments funded on a facility level to observe these phenomena and make substantive progress in the science of these phenomena.