Preliminary processing of primary geophysical data, automatically transmitted from the regime geophysical station to the daily specific files confirmed the feasibility of using such approaches. The purpose of the research is to focus on the choice of simple methods of primary data processing and the development of appropriate mathematical models of the dynamics. The results of preliminary processing of the primary data obtained from the regime geophysical automatic station are submitted. Descriptive statistics and simulation of time series were used as processing methods. The presentation of the results by multidimensional graphs allowed to reveal the phenomenon of coincidence in the first indicators of descriptive statistics, and in the second, the coincidence of the model's coefficients for the daily measurements of the natural electric field