### Voskoboynikova G.M.

## Mathematical Simulation Of Interaction The Acoustic Oscillations With Vegetation

In this paper the problem of interaction of acoustic waves falling at a given angle on the ground with a forest and seismic waves arising in the ground is considered for a three-layer “air-forest-ground” model. A mathematical simulation of the infrasound oscillations propagation in the atmosphere considering friction force are implemented. The influence of the friction coefficient to the attenuation speed of acoustic oscillations are estimated. The algorithm and program of calculation of the acoustic pressure levels in the different media using wave equation for the atmosphere, system of gas dynamics equations for the forest and elastic equation for the ground, are developed and realized.

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