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JOURNALS // Sibirskii Zhurnal Vychislitel'noi Matematiki // Archive

Sib. Zh. Vychisl. Mat., 2006 Volume 9, Number 1, Pages 37–46 (Mi sjvm100)

This article is cited in 1 paper

The numerical-analytical method of solving the problem of seismic and acoustic-gravity wave propagation for the inhomogeneous model Earth–Atmosphere

B. G. Mikhailenko, G. V. Reshetova

Institute of Computational Mathematics and Mathematical Geophysics (Computing Center), Siberian Branch of the Russian Academy of Sciences

Abstract: This paper considers a numerical-analytical method of solving the problem of seismic and acoustic-gravity wave propagation for the inhomogeneous model “Earth-Atmosphere”. The seismic wave propagation is described by a system of the first order dynamic equations of elasticity theory; the propagation of acoustic-gravity waves in the atmosphere is described by the linearized Navier–Stokes equations. The algorithm proposed is based on a combination of the integral Laguerre transform with respect to time, finite integral Bessel transform along the radial coordinate with a finite difference method along the vertical coordinate. The paper presents some examples of calculation of seismic and acoustic-gravity waves for the inhomogeneous model Earth–Atmosphere for various locations of a source.

Key words: Seismic waves, acoustic-gravity waves, wave propagation, numerical-analytical method, the Bessel transform and the Laguerre transform.

UDC: 550.344.5

Received: 01.08.2005
Revised: 08.09.2005



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