Super-interesting: ionospheric lightning has very different causes from our usual stratospheric/tropospheric lightning. The ionosphere lightning can make it hard for low-orbit satellites to detect signal from the GPS satellites, which are also low orbit, because the line-of-sight may pass through the lightning region
Originally shared by Peter Vogel
Little-understood “upward” lightning creates havoc for some satellites.
ESA Swarm satellites lose contact with earth as they cross equatorial plane. Lightning may be to blame.
Scientific paper (abstract): http://onlinelibrary.wiley.com/doi/10.1002/2016SW001439/abstract