Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/1547
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dc.contributor.authorallSabadell, F. J.; Civil Engineering School, Polytechnic, University of Cataluña, Barcelona, Spainen
dc.contributor.authorallSerón, F. J.; Department of System Engineering and Computer Sciences, CPS, University of Zaragoza, Zaragoza, Spainen
dc.contributor.authorallBadal, J.; Department of Theoretical Physics and Geophysics, University of Zaragoza, Zaragoza, Spainen
dc.date.accessioned2006-09-11T07:51:50Zen
dc.date.available2006-09-11T07:51:50Zen
dc.date.issued1997-01en
dc.identifier.urihttp://hdl.handle.net/2122/1547en
dc.description.abstractWhen applying a methodology for obtaining the 3D shear-wave velocity structure of a medium from surface wave dispersion data, the problem must be considered with caution since one inverts path-averaged velocities and the use of any inversion method entails some drawbacks such as lack of uniqueness, unwarranted stability and constraints affecting the data. In order to avoid the application of consecutive inversions and to overcome these drawbacks, we propose alternative mapping methods, for example spatial prediction methods, or else the use of an algorithm that, from a mathematical viewpoint, can be understood through the application of the orthogonal projection theorem onto convex sets (POCS). Among the first ones, we try inverse weighted distance interpolation. The POCS algorithm we have used discretises a second order differential equation for the velocity field with boundary conditions. All these imaging techniques aimed at volumetric modelling and the visualisation of data are discussed, and finally we show some results based on ray path velocities obtained previously by inversion of phase and group velocities of Rayleigh waves propagating across the Iberian peninsula.en
dc.format.extent4117139 bytesen
dc.format.mimetypeapplication/pdfen
dc.language.isoEnglishen
dc.relation.ispartofseries1/40 (1997)en
dc.subjectIberian peninsulaen
dc.subjectgridding techniquesen
dc.subjectPOCS algorithmen
dc.subjecttomographic imagesen
dc.titleA proper methodology aimed at surface wave tomographyen
dc.typearticleen
dc.type.QualityControlPeer-revieweden
dc.subject.INGV04. Solid Earth::04.06. Seismology::04.06.99. General or miscellaneousen
dc.subject.INGV04. Solid Earth::04.06. Seismology::04.06.07. Tomography and anisotropyen
dc.description.journalTypeJCR Journalen
dc.description.fulltextopenen
dc.contributor.authorSabadell, F. J.en
dc.contributor.authorSerón, F. J.en
dc.contributor.authorBadal, J.en
dc.contributor.departmentCivil Engineering School, Polytechnic, University of Cataluña, Barcelona, Spainen
dc.contributor.departmentDepartment of System Engineering and Computer Sciences, CPS, University of Zaragoza, Zaragoza, Spainen
dc.contributor.departmentDepartment of Theoretical Physics and Geophysics, University of Zaragoza, Zaragoza, Spainen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptCivil Engineering School, Polytechnic, University of Cataluña, Barcelona, Spain-
crisitem.author.deptDepartment of System Engineering and Computer Sciences, CPS, University of Zaragoza, Zaragoza, Spain-
crisitem.author.deptDepartment of Theoretical Physics and Geophysics, University of Zaragoza, Zaragoza, Spain-
crisitem.classification.parent04. Solid Earth-
crisitem.classification.parent04. Solid Earth-
Appears in Collections:Annals of Geophysics
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