Mathematical modeling of seismic and acousto-gravitational waves in a heterogeneous earth-atmosphere model |
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Authors: | B Mikhailenko |
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Institution: | The Institute of Computational Mathematics and Mathematical Geophysics, pr. Lavrentieva, 6, Novosibirsk, Russia |
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Abstract: | A numerical-analytical solution to problems of seismic and acoustic-gravitational wave propagation is applied to a heterogeneous Earth-Atmosphere model. The seismic wave propagation in an elastic half-space is described by a system of first order dynamic equations of the elasticity theory. The propagation of acoustic-gravitational waves in the atmosphere is described by the linearized Navier-Stokes equations. The algorithm proposed is based on the integral Laguerre transform with respect to time, the finite integral Bessel transform along the radial coordinate with a finite difference solution of the reduced problem along the vertical coordinate. The algorithm is numerically tested for the heterogeneous Earth-Atmosphere model for different source locations. |
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Keywords: | Numerical techniques Seismic modeling Seismic-wave propagation Seismology |
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