Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/1522
DC Field | Value | Language |
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dc.contributor.authorall | Böhm, G.; Osservatorio Geofisico Sperimentale, Trieste, Italy | en |
dc.contributor.authorall | Rossi, G.; Osservatorio Geofisico Sperimentale, Trieste, Italy | en |
dc.contributor.authorall | Vesnaver, A.; Osservatorio Geofisico Sperimentale, Trieste, Italy | en |
dc.date.accessioned | 2006-09-11T07:47:54Z | en |
dc.date.available | 2006-09-11T07:47:54Z | en |
dc.date.issued | 1997-01 | en |
dc.identifier.uri | http://hdl.handle.net/2122/1522 | en |
dc.description.abstract | 3D reflection tomography allows the macro-model of complex geological structures to be reconstructed. In the usual approach, the spatial distribution of the velocity field is discretized by regular grids. This choice simplifies the development of the related software, but introduces two serious drawbacks: various domains of the model may be poorly covered, and a relevant mismatch between the grid and a complex velocity field may occur. So the tomographic inversion becomes unstable, unreliable and necessarily blurred. In this paper we introduce an algorithm to adapt the grid to the available ray paths and to the velocity field in sequence: so we get irregular grids with a locally variable resolution. We can guide the grid fitting procedure interactively, if we are going to introduce some geological a priori information; otherwise, we define a fully automatic approach, which exploits the Delauny triangles and Voronoi polygons. | en |
dc.format.extent | 4496891 bytes | en |
dc.format.mimetype | application/pdf | en |
dc.language.iso | English | en |
dc.relation.ispartofseries | 1/40 (1997) | en |
dc.subject | reflection tomography | en |
dc.subject | irregular grids | en |
dc.subject | automatic regridding | en |
dc.subject | travel time inversion | en |
dc.title | Adaptive regridding in 3D reflection tomography | en |
dc.type | article | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.07. Tomography and anisotropy | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | open | en |
dc.contributor.author | Böhm, G. | en |
dc.contributor.author | Rossi, G. | en |
dc.contributor.author | Vesnaver, A. | en |
dc.contributor.department | Osservatorio Geofisico Sperimentale, Trieste, Italy | en |
dc.contributor.department | Osservatorio Geofisico Sperimentale, Trieste, Italy | en |
dc.contributor.department | Osservatorio Geofisico Sperimentale, Trieste, Italy | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Osservatorio Geofisico Sperimentale, Trieste, Italy | - |
crisitem.author.dept | Istituto Nazionale Di Oceanografia E Di Geofisica Sperimentale - OGS | - |
crisitem.author.dept | KFUPM - OGS | - |
crisitem.author.orcid | 0000-0002-5572-1759 | - |
crisitem.classification.parent | 04. Solid Earth | - |
Appears in Collections: | Annals of Geophysics |
Files in This Item:
File | Description | Size | Format | |
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06 bohm.pdf | 4.39 MB | Adobe PDF | View/Open |
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