Kirchhoff prestack depth scalar migration of a complete wave field: stair-step interface

Vaclav Bucha

Summary

During our 3-D ray-based Kirchhoff prestack depth scalar migrations of a complete wave field, we encountered a problem with a stair-step migrated interface. The recorded complete seismic wave field was calculated using the Fourier pseudospectral method in a gridded velocity model. To explain the stair-step problem of the migrated interface, we have performed several additional calculations and present the results.

Keywords

Fourier pseudospectral method, 3-D Kirchhoff prestack depth scalar migration, anisotropic velocity model, complete wave field, stair-step interface

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Seismic Waves in Complex 3-D Structures, 29 (2019), 39-44 (ISSN 2336-3827, online at http://sw3d.cz).