Stages of ionization and voltage breakdown at gaseous continuum produced by lightning surge

For anisotropic gaseous continuum, located at considerable distance from the source of lightning surge, where radiation from conduction in the return stroke and time variation in bound charges (convective effect), have been assumed to exist, and with the knowledge that all electromagnetic radiation fields components are known, the following solutions have been established: 1. Induced current density vectors within the gaseous continuum in three dimensional coordinate system have been determined. 2. Criteria of voltage breakdown (induced electrically and magnetically) along any orientation in the cylindrical coordinate system have been established in three modes: a. Concentration mode b. Field effect mode and c. Coupled field-concentration mode 3. Microscopic, average velocities of the anisotropic gaseous, doubly ionized mixture have been secured through the field-concentration criterion of voltage breakdown.