Application of acustic wave solution for the analysis of reverberation

Title (Dublin Core)

eng Application of acustic wave solution for the analysis of reverberation

hrv Primjena rješenja za akustičke valove na analizu odjeka

Description (Dublin Core)

eng Finite difference method offers a versatile approach to numerical computation of synthetic seismograms for give subsurface complex geological model. Numerical solution for the acoustic wave has been derived using the Lax-Wendroff scheme for an inhomogeneous medium and implemented for the modeling of localized area in the offshore region. Numerical seismograms have been obtained to identify the singing effect for different model geometries. The effect of source-receivers position, water depth and the frequency of source on the reverberation is studied. The generation of ghost reflections and its effect on the amplitude of reflected waves as well as on multiples for different source-depth position is studied. The grid dispersion effect on the reflected signal and the reverberation is discussed for high-frequency signals. The analysis of numerical seismograms indicates that the energy radiating from a point source and remaining completely within a water layer may not cause singing, whereas the energy reflected from the deeper horizons is responsible for the singing effect on the reflections.

Creator (Dublin Core)

Narayan, J. P.

Ram, Avadh

Subject (Dublin Core)

eng acustic wave; numerical seismograms

hrv akustički val; numerički seizmogrami

Publisher (Dublin Core)

Andrija Mohorovicic Geophysical Institute

Date (Dublin Core)

1994

Type (Dublin Core)

text

info:eu-repo/semantics/article

info:eu-repo/semantics/publishedVersion

Format (Dublin Core)

application/pdf

Identifier (Dublin Core)

https://hrcak.srce.hr/20019

eng https://hrcak.srce.hr/file/31358

Source (Dublin Core)

Geofizika

ISSN 0352-3659 (Print)

ISSN 1846-6346 (Online)

Volume 11

Issue 1

Language (Dublin Core)

eng

Rights (Dublin Core)

info:eu-repo/semantics/openAccess

All manuscripts published on-line are subject to Creative Commons Attribution-NonCommercial 4.0 International License which permits users to read, download, copy, redistribute, print, search, or link to the full texts of these articles in any medium or format. Also, users can remix, transform and build upon the material, provided the original work is properly cited and any changes properly indicated. They may not use the material for commercial purposes.

By submitting a manuscript, the author accepts the application of the Creative Commons Attribution-NonCommercial 4.0 International License.

Item