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The investigation of the ambient seismic noise recorded by the Bulgarian Antarctic seismic station LIVV over four polar summers from 2015 to 2020 is presented in the paper. The method for evaluating the Power Spectral Density and Probability Density Functions is applied to study the distribution of the seismic noise in a period interval from 0.02 s to 30 s. The method is widely applied in seismological practice of the Seismological Society for carrying out both fundamental and practical scientific projects. For a ...