In addition, according to the data of , the ionic mechanism of electrization of cloudy particles is characteristic for the initial stage of cloud development in the terrestrial atmosphere.
This circumstance will also be facilitated by the fact that, taking into account the previously noted bipolar character of the electrization of solid dielectric particles in the air atmosphere , large-scale regions with excessive negative (with an excess of electrons) and positive (with a lack of electrons) by electric charges.
In this case, the proposed electrophysical mechanisms for the formation and development of a thundercloud in the terrestrial troposphere are in fact additional to the known mechanisms for the accumulation of electric charges in it, based on the atmospheric electrization of shallow water droplets in warm ascending air currents.
Here it should be emphasized that in the calculation estimation of [W.sub.e], we did not take into account the electric charges with their energy, formed in a thundercloud cloud with the known processes of electrization of shallow water droplets and crystallization of cloudy water vapor .
A new hypothesis is presented with the scientific justification for the possible existence of additional mechanisms for the formation, accumulation and separation of electric charges in the atmospheric clouds of our planet based on the electrization in warm ascending air currents of small round solid dielectric particles of radius [r.sub.0] falling into the air atmosphere from the Earth surface and from the smoke emissions of industrial enterprises in most countries of the world.
Carried out taking into account the proposed hypothesis calculation estimations of the electric potential [[phi].sub.R] in the spherical model of an atmospheric thundercloud with outer radius [R.sub.0] [approximately equal to] 985 m and stored in it electrical energy We indicate that the atmospheric electrization of small fine solid particles with radius [r.sub.0] [approximately equal to] 10 [micro]m with their volumetric density [N.sub.0] [approximately equal to] [10.sup.7] [m.sup.-3] in such a cloud is capable of providing an extremely high value of the electric potential [[phi].sub.R] (up to 1.01 x [10.sup.8] V) on it and the accumulation in it of a very high electric energy [W.sub.e] (up to 0.632 x [10.sup.6] J).
The considered electrophysical processes and new additional mechanisms of the formation and accumulation of electric charges in atmospheric clouds can be useful in constructing a thunderstorm theory in natural fine-dispersed media with fine solid particles charged by contact electrization, characteristic of sandstorms and volcanic smoke eruptions, when in them the volumetric density [N.sub.0] of small solid dielectric particles is not less than [10.sup.8] [m.sup.-3].