GEOCORONA. “While the neutral atoms and molecules are not influenced by the electromagnetic forces, the geocorona is significant to space physics processes in at least two ways: Coulomb collisions and charge-exchange processes with neutral atoms are significant loss mechanisms for energetic charged particles in the inner magnetosphere, and thus contribute to the recovery of quiet conditions after a magnetic storm.”
https://link.springer.com/article/10.12942/lrsp-2007-1