Whitepaper #028 in the Decadal Survey for Solar and Space Physics (Heliophysics) 2024-2033. Main topics: space weather applications; basic research. Additional topics: space weather research/operations/research loop; space weather research/applications/operations pipeline; […]
This white paper advocates the importance of multi-height measurements of the vector magnetic field in the solar atmosphere. These measurements are critical for addressing some of the most fundamental questions in solar and heliospheric physics today. They constitute also the primary product for space weather operations, research, and modeling.