SURFACE LAYER ELECTRICITY RESEARCH: MODELING AND EXPERIMENT

Abstract

The article presents a comparative analysis of the numerical and analytical modeling results of the electrode effect in the atmosphere, as well as experimental studies of electrodynamic processes taking place in the surface layer. For the analysis, several electrical characteristics of the surface layer in the atmosphere were used, namely, the values of the parameters of the electrode effect determined by the number of positive and negative aeroions at different altitudes from the earth's surface. Studies have been carried out for various models under various meteorological conditions in approximations of the classical (non-turbulent) and turbulent electrode effect, both in a clean atmosphere and taking into account aerosol air pollution. The independence regularity of the electrode effect value as a whole (the amplification of the electric field at the surface compared with the upper boundary of the formed electrode layer) from atmospheric conditions with various methods of mathematical and numerical modeling is revealed. It is established that the height of the electrode layer and, accordingly, the scale of the electrical characteristics distribution change significantly when various factors, such as ionization and aerosol air pollution, the presence and intensity of turbulent and convective transport, act on the near-surface layer of the atmosphere. The verification of approximate analytical models was carried out by establishing the correspondence between the results of numerical modeling, theoretical calculations and experimental studies obtained earlier. The data of theoretical and numerical calculations in various ways are in good agreement with each other and with the results of experimental atmosphericelectrical observations. Conclusions are drawn about the possibility of using approximate analytical expressions obtained by mathematical modeling methods to describe the electrodynamic structure of the atmospheric lower layer.