
1) Atmospheric electricity
Found on
https://www.crosswordclues.com/clue/electrojet

An electrojet is an electric current which travels around the E region of the Earth`s ionosphere. There are two electrojets: above the magnetic equator (the equatorial electrojet), and near the Northern and Southern Polar Circles (the Auroral Electrojets). Electrojets are Hall currents carried primarily by electrons at altitudes from 100 to 150 k....
Found on
http://en.wikipedia.org/wiki/Electrojet

streaming movement of charged particles in the ionosphere. The term is limited by some to those flow patterns that contain a significant proportion ... [3 related articles]
Found on
http://www.britannica.com/eb/a-z/e/19

a current of ions existing in the upper atmosphere, moving with respect to the surface of the earth, and causing various auroral phenomena.
Found on
https://www.infoplease.com/dictionary/electrojet
No exact match found.