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dc.contributor.authorHuang, Yunsong
dc.contributor.authorSchuster, Gerard T.
dc.date.accessioned2015-08-03T12:05:50Z
dc.date.available2015-08-03T12:05:50Z
dc.date.issued2014-08
dc.identifier.issn09269851
dc.identifier.doi10.1016/j.jappgeo.2014.05.018
dc.identifier.urihttp://hdl.handle.net/10754/563674
dc.description.abstractFormulas are derived for the resolution limits of migration-data kernels associated with diving waves, primary reflections, diffractions, and multiple reflections. They are applicable to images formed by reverse time migration (RTM), least squares migration (LSM), and full waveform inversion (FWI), and suggest a multiscale approach to iterative FWI based on multiscale physics. That is, at the early stages of the inversion, events that only generate low-wavenumber resolution should be emphasized relative to the high-wavenumber resolution events. As the iterations proceed, the higher-resolution events should be emphasized. The formulas also suggest that inverting multiples can provide some low- and intermediate-wavenumber components of the velocity model not available in the primaries. Finally, diffractions can provide twice or better the resolution than specular reflections for comparable depths of the reflector and diffractor. The width of the diffraction-transmission wavepath is approximately λ at the diffractor location for the diffraction-transmission wavepath. © 2014 Elsevier B.V.
dc.description.sponsorshipResearch reported in this publication was supported by King Abdullah University of Science and Technology (KAUST).
dc.publisherElsevier BV
dc.subjectComputational seismology
dc.subjectMigration
dc.subjectTomography
dc.subjectWave diffraction
dc.subjectWave scattering
dc.titleResolution limits for wave equation imaging
dc.typeArticle
dc.contributor.departmentCenter for Subsurface Imaging and Fluid Modeling
dc.contributor.departmentEarth Science and Engineering Program
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalJournal of Applied Geophysics
kaust.personHuang, Yunsong
kaust.personSchuster, Gerard T.


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