Green’s function representations for Marchenko imaging without up/down decomposition

Kees Wapenaar, Roel Snieder, Sjoerd de Ridder, Evert Slob

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Marchenko methods are based on integral representations which express Green’s functions for virtual sources and/or receivers in the subsurface in terms of the reflection response at the surface. An underlying assumption is that inside the medium the wave field can be decomposed into downgoing and upgoing waves and that evanescent waves can be neglected. We present a new derivation of Green’s function representations which circumvents these assumptions, both for the acoustic and the elastodynamic situation. These representations form the basis for research into new Marchenko methods which have the potential to handle refracted and evanescent waves and to more accurately image steeply dipping reflectors.
Original languageEnglish
Pages (from-to)184-203
Number of pages20
JournalGeophysical Journal International
Volume227
Issue number1
DOIs
Publication statusPublished - 2021

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • Controlled source seismology
  • Seismic interferometry
  • Wave scattering and diffraction

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