TRANSMISSION OF ELASTIC WAVES THROUGH SOLIDS CONTAINING SMALL-SCALE HETEROGENEITIES
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dc.contributor.author | Herman G.C. | |
dc.date.accessioned | 2021-03-18T00:36:57Z | |
dc.date.available | 2021-03-18T00:36:57Z | |
dc.date.issued | 2001 | |
dc.identifier | https://www.elibrary.ru/item.asp?id=1205068 | |
dc.identifier.citation | Geophysical Journal International, 2001, 145, 2, 436-446 | |
dc.identifier.issn | 0956-540X | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/26882 | |
dc.description.abstract | An explicit expression, based on the second-order Neumann expansion, is derived for computing the gradual evolution of a monochromatic compressional seismic wave as it propagates through a medium, the density of which varies in two dimensions. In particular, the case is considered where these variations take place on a scale that is small with respect to the seismic wavelength. For monochromatic plane waves propagating in a particular direction, a medium containing small-scale inhomogeneities can be replaced by a smoother 'apparent' medium. The apparent medium accounts for both first- and second-order scattering effects, is frequency-dependent and also depends on the direction of propagation. Frequency-dependent wave speeds, which can be measured very accurately, can therefore be an indication of the presence of heterogeneities of a much smaller scale than the wavelength of the incident wave. This is of particular interest for seismic imaging. | |
dc.subject | ATTENUATION | |
dc.subject | EFFECTIVE MEDIUM THEORY | |
dc.subject | INCLUSIONS | |
dc.subject | WAVE PROPAGATION | |
dc.title | TRANSMISSION OF ELASTIC WAVES THROUGH SOLIDS CONTAINING SMALL-SCALE HETEROGENEITIES | |
dc.type | Статья |
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