Are large high-altitude electric fields caused by global thunderstorms?
© The Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS); The Seismological Society of Japan; The Volcanological Society of Japan; The Geodetic Society of Japan; The Japanese Society for Planetary Sciences. 2002
Received: 14 June 2000
Accepted: 19 December 2001
Published: 20 June 2014
Using the model of a spherical symmetric atmosphere the large-scale electric fields generated by the global thunderstorms are investigated. Theoretical formulations have been developed to calculate high-altitude electric fields due to global thunderstorms, taking into account the presence of the ionosphere. We make use of the assumption that in the ionosphere the geomagnetic field lines are equipotentials. The calculations indicate that the solution is highly sensitive to the variation of this upper boundary condition.