Characteristics of a Dynamic System of Geophysical Fields on Different Time Scales

Abstract

The paper presents the results of estimating the parameters of the dynamic systems of observed variations in different types of geophysical fields based on the data obtained by American geophysicists at the Plate Boundary Observatory (PBO) (Parkfield, California) project. It is shown that the estimates of a dynamic system’s dimension, correlation entropy, and correlation dimension depend on the time scale on which the variations are considered. The representation of a sequence of earthquakes in the form of a continuous time series made it possible to estimate the parameters of a dynamic system that forms the observed variations. Together with analyzing the characteristics of the dynamic systems of geophysical fields in a wide range of time scales, the variability of these characteristics at different observation points is also considered.