Global atmospheric electrical circuit

Lightning strikes the earth 100 times per second.[1]

A global atmospheric electrical circuit is the continuous movement of atmospheric charge carriers, such as ions, between an upper conductive layer (often an ionosphere) and surface. The global circuit concept is closely related to atmospheric electricity, but not all atmospheres necessarily have a global electric circuit.[2] The basic concept of a global circuit is that through the balance of thunderstorms and fair weather, the atmosphere is subject to a continual and substantial electrical current.

Principally, thunderstorms throughout the world carry negative charges to the earth, which is then discharged gradually through the air away from the storms, in conditions that are referred to as "fair weather".[1]

This atmospheric circuit is central to the study of atmospheric physics and meteorology.[3] The global electrical circuit is also relevant to the study of human health and air pollution, due to the interaction of ions and aerosols. The effects of climate change and temperature-sensitivity of the Earth's electrical circuit are currently unknown.[4]

  1. ^ a b Cite error: The named reference Feynman was invoked but never defined (see the help page).
  2. ^ Aplin, K L (2022). "The charge of the spheres". Astronomy and Geophysics. 63 (4): 4.12–4.17.
  3. ^ Harrison, R. G. (1 November 2004). "The Global Atmospheric Electrical Circuit and Climate". Surveys in Geophysics. 25 (5): 441–484. arXiv:physics/0506077. doi:10.1007/s10712-004-5439-8. ISSN 1573-0956.
  4. ^ "Soaking in atmospheric electricity | Science Mission Directorate". science.nasa.gov. Retrieved 5 November 2017.