[S03-P] Poster

[S03-P-12] The study of the high-frequency microseismic noise at the Russian Platform

^○Alina Besedina, Ivan Batukhtin, Alexey Ostapchuk (Institute of Geosphere Dynamics, Russian Academy of Sciences, Moscow, Russian Federation)

Passive seismic imaging is based on coherent signal allocation in the measurement results of seismic noise of two receiver stations. Numerous theoretical studies and numerical simulations have shown that the cross-correlation of seismic noise determines the source function (Green's function), which describes the propagation of surface waves between two receiver-stations. Rayleigh surface waves with weak damping is widely used by researchers to construct the deep structure of the geological environment with the help of the cross-correlation techniques. Studies show that body waves give a substantial contribution for high frequencies. However, the contribution of energy and the distribution of noise sources define frequency range and conditions of the measurement, which is especially important for high-frequency seismic noise in the area for which the noise is largely man-made. The paper studied the composition of seismic noise in the range of high frequencies at the Russian Platform, which is characterized by thick deposits of loose sediment, as well as a high level of anthropogenic interference. This work was supported by the Russian Federation Presidential Program for State Support of Young Scientists (project no. MK-2698.2017.5).