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Petrov, D. I.; Petrov, I. B.; Favorskaya, A. V.; Khokhlov, N. I.

Numerical solution of seismic exploration problems in the arctic region by applying the grid-characteristic method. (English. Russian original) Zbl 1381.86024

Comput. Math. Math. Phys. 56, No. 6, 1128-1141 (2016); translation from Zh. Vychisl. Mat. Mat. Fiz. 56, No. 6, 1149-1163 (2016).
Summary: The goal of this paper is the numerical solution of direct problems concerning hydrocarbon seismic exploration on the Arctic shelf. The task is addressed by solving a complete system of linear elasticity equations and a system of acoustic field equations. Both systems are solved by applying the grid-characteristic method, which takes into account all wave processes in a detailed and physically correct manner and produces a solution near the boundaries and interfaces of the integration domain, including the interface between the acoustic and linear elastic media involved. The seismograms and wave patterns obtained by numerically solving these systems are compared. The effect of ice structures on the resulting wave patterns is examined.

Cited in 3 Documents

MSC:

86A15 Seismology (including tsunami modeling), earthquakes
86-08 Computational methods for problems pertaining to geophysics
65M25 Numerical aspects of the method of characteristics for initial value and initial-boundary value problems involving PDEs

Keywords:

grid-characteristic method; numerical simulation; seismic exploration on arctic shelf; icebergs; acoustic media; linear elastic media
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Full Text: DOI

References:

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