Investigating the lateral resolution of the Rayleigh wave focal spot imaging technique using two-dimensional acoustic simulations
We investigate the lateral resolution power of the seismic Rayleigh wave focal spot imaging technique. We use two-dimensional acoustics simulations in a closed cavity for the passive Green’s function and focal spot reconstruction. Four different velocity distributions target different resolution asp...
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| Format: | Article |
| Language: | English |
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Académie des sciences
2024-02-01
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| Series: | Comptes Rendus. Géoscience |
| Subjects: | |
| Online Access: | https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.254/ |
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| author | Giammarinaro, Bruno Tsarsitalidou, Christina Hillers, Gregor |
| author_facet | Giammarinaro, Bruno Tsarsitalidou, Christina Hillers, Gregor |
| author_sort | Giammarinaro, Bruno |
| collection | DOAJ |
| description | We investigate the lateral resolution power of the seismic Rayleigh wave focal spot imaging technique. We use two-dimensional acoustics simulations in a closed cavity for the passive Green’s function and focal spot reconstruction. Four different velocity distributions target different resolution aspects. The finite data range that is necessary to constrain the Bessel function model controls the lateral spreading of material contrasts, the distinction of two objects on sub-wavelength scales, and the image quality of complex random media. Good data quality from dense networks supports short range estimates and super-resolution. |
| format | Article |
| id | doaj-art-0e9a43017c544f3d9f7acc43f7926e11 |
| institution | Kabale University |
| issn | 1778-7025 |
| language | English |
| publishDate | 2024-02-01 |
| publisher | Académie des sciences |
| record_format | Article |
| series | Comptes Rendus. Géoscience |
| spelling | doaj-art-0e9a43017c544f3d9f7acc43f7926e112025-02-07T10:42:14ZengAcadémie des sciencesComptes Rendus. Géoscience1778-70252024-02-01356S4415710.5802/crgeos.25410.5802/crgeos.254Investigating the lateral resolution of the Rayleigh wave focal spot imaging technique using two-dimensional acoustic simulationsGiammarinaro, Bruno0https://orcid.org/0000-0001-9968-1915Tsarsitalidou, Christina1https://orcid.org/0000-0003-1404-4648Hillers, Gregor2https://orcid.org/0000-0003-2341-1892Institute of Seismology, University of Helsinki, Helsinki, FinlandInstitute of Seismology, University of Helsinki, Helsinki, FinlandInstitute of Seismology, University of Helsinki, Helsinki, FinlandWe investigate the lateral resolution power of the seismic Rayleigh wave focal spot imaging technique. We use two-dimensional acoustics simulations in a closed cavity for the passive Green’s function and focal spot reconstruction. Four different velocity distributions target different resolution aspects. The finite data range that is necessary to constrain the Bessel function model controls the lateral spreading of material contrasts, the distinction of two objects on sub-wavelength scales, and the image quality of complex random media. Good data quality from dense networks supports short range estimates and super-resolution.https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.254/Numerical modelingWave propagationSeismic noiseCavityFocal spotResolutionSeismic imaging |
| spellingShingle | Giammarinaro, Bruno Tsarsitalidou, Christina Hillers, Gregor Investigating the lateral resolution of the Rayleigh wave focal spot imaging technique using two-dimensional acoustic simulations Comptes Rendus. Géoscience Numerical modeling Wave propagation Seismic noise Cavity Focal spot Resolution Seismic imaging |
| title | Investigating the lateral resolution of the Rayleigh wave focal spot imaging technique using two-dimensional acoustic simulations |
| title_full | Investigating the lateral resolution of the Rayleigh wave focal spot imaging technique using two-dimensional acoustic simulations |
| title_fullStr | Investigating the lateral resolution of the Rayleigh wave focal spot imaging technique using two-dimensional acoustic simulations |
| title_full_unstemmed | Investigating the lateral resolution of the Rayleigh wave focal spot imaging technique using two-dimensional acoustic simulations |
| title_short | Investigating the lateral resolution of the Rayleigh wave focal spot imaging technique using two-dimensional acoustic simulations |
| title_sort | investigating the lateral resolution of the rayleigh wave focal spot imaging technique using two dimensional acoustic simulations |
| topic | Numerical modeling Wave propagation Seismic noise Cavity Focal spot Resolution Seismic imaging |
| url | https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.254/ |
| work_keys_str_mv | AT giammarinarobruno investigatingthelateralresolutionoftherayleighwavefocalspotimagingtechniqueusingtwodimensionalacousticsimulations AT tsarsitalidouchristina investigatingthelateralresolutionoftherayleighwavefocalspotimagingtechniqueusingtwodimensionalacousticsimulations AT hillersgregor investigatingthelateralresolutionoftherayleighwavefocalspotimagingtechniqueusingtwodimensionalacousticsimulations |