Modeling the 2D seismic waves propagation from singular sources in porous media based on the Laguerre spectral method
A linear two-dimensional problem in the form of dynamic equations of porous media for the components of velocities, stresses and pressure is considered. Dynamic equations are based on conservation laws and are consistent with the thermodynamics conditions. The medium is considered to be ideal (there is no energy loss in...
imomnazarov_5.pdf466.11 KB
On the search for new impact structures based on the "orbital" hypothesis
In this paper, a cosmogenic "orbital" model of formating astroblemes on the Earth's surface is used for the search for new large structures of the impact origin. Because of the only known exact parameter of this model is the distance of 23.25° between the round-the-world turns of a cosmic body...
Khazivaliev_Mikheeva_001.pdf2.04 MB
Numerical solution of a one-dimensional inverse retrospective problem for a system of poroelasticity equations
This paper deals with the implementation of the statement of the second initial condition for a system of dynamic equations of a two-phase onedimensional medium. The need to solve such a problem arises, for example, in the case when the time conditions are specified at the initial and final moments...
korobov.pdf630.56 KB
A numerical method for computing tsunami travel times to the rectangular grid nodes
The new method for the tsunami travel times calculation to the nodes of rectangular grid was developed and tested. The algorithm is based on constructing the wave front segment inside the grid cell using tsunami arrival times to the cell angles. Testing the method proposed shows the better quality of...
marchuk_13.pdf421.28 KB
Modeling the infrasonic and seismic waves propagation from various types of singular sources in the Atmosphere-Earth interface
In this paper, we consider the results of the numerical simulation of the propagation of seismic and acousto-gravitational waves for the spatially inhomogeneous "Atmosphere-Earth" model. The seismic wave propagation in an elastic half-space is described by a system of first order dynamic equations of the elastic theory through interconnection of...
Michailov.pdf342.56 KB
The dynamics of parameters of individual earthquake swarm sequences in different geotectonic settings
To study the swarm sequences of earthquakes in the areas of plate convergence and divergence, the parameters: surface wave magnitude MS and depth H are used, as well as one of the characteristics of the seismic regime — creepex CrNcat, included in the complex of the...
Mikheeva_001.pdf645.22 KB
On solvability of the Cauchy problem for one-dimensional system of the Hopf type equations
The Cauchy problem for a one-dimensional system of equations of the Hopf type is considered. A theorem on the solvability of the considered Cauchy problem in the class of analytic functions has been proved.
salaev.pdf197.59 KB