ВЛИЯНИЕ КОГЕРЕНТНЫХ СТРУКТУР И ПЕРЕМЕЖАЕМОСТИ НА ЭЛЕКТРИЧЕСКУЮ ТУРРБУЛЕНТНОСТЬ В ГРОЗОВОЙ ОБЛАЧНОСТИ

THE INFLUENCE OF COHERENT STRUCTURES AND INTERMITTENCY ON THE ELECTRIC TURBULENCE IN THUNDERCLOUDS

By usage of analytical model it is considered the possible influence of intermittency and coherent structures on the behaviour of structure functions for the electric turbulence in thunderclouds. The coherent structures (CS) and intermittency (IM) are modeled by some spatially localized functions with parameters determining the amplitudes of CS and IM dynamics, their spatial sizes and distributions inside turbulence. Numerical calculations of turbulence structure functions (SF) have shown that the influence of CS and IM may be essential enough under the suitable choice their parameters? For example, some variations from power law dependence are observed and at the middlel-scale range the autocorrelation function is increasing. The CScontribution and IM-one are the most essential at the scales of the order of their typical width. More obvious their influence on SF-behaviour is seen on the plotts of so-called relative structure functions.