Roger Haagmans, ESA's Swarm mission scientist, explained, «It's astonishing that the team has been able to use just two years» worth of measurements from Swarm to determine
the magnetic tidal effect from the ocean and to see how conductivity changes in the lithosphere and upper mantle.
Such proximity introduces hazards that are of negligible importance for life on Earth: increased exposure to (time - varying) short wavelength radiation, stronger
magnetic fields,
tidal effects, and atmospheric removal by the stellar wind.