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URN: urn:nbn:de:swb:90-473286

3D elastic time-frequency full-waveform inversion

Butzer, Simone

Abstract:
In this work I present the theory and implementation of a 3D elastic full waveform inversion. The implementation is based on the adjoint-state method using a time-frequency approach. Synthetic applications in transmission acquisition geometry show the ability of the method to reconstruct elastic parameters of different 3D subsurface structures. Optimisations with the diagonal Hessian matrix for preconditioning and the L-BFGS scheme enable the inversion of more complex surface geometry data.


Zugehörige Institution(en) am KIT Geophysikalisches Institut (GPI)
Publikationstyp Hochschulschrift
Jahr 2015
Sprache Englisch
Identifikator KITopen-ID: 1000047328
Verlag Karlsruhe
Abschlussart Dissertation
Fakultät Fakultät für Physik (PHYSIK)
Institut Geophysikalisches Institut (GPI)
Prüfungsdaten 09.01.2015
Referent/Betreuer Prof. T. Bohlen
Schlagworte conjugate gradient, seismic, preconditioning, L-BFGS, multi-parameter
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