An adaptive multiscale algorithm for efficient extended waveform inversion
| dc.citation.firstpage | R183 | en_US |
| dc.citation.issueNumber | 3 | en_US |
| dc.citation.journalTitle | Geophysics | en_US |
| dc.citation.lastpage | R197 | en_US |
| dc.citation.volumeNumber | 82 | en_US |
| dc.contributor.author | Fu, Lei | en_US |
| dc.contributor.author | Symes, William W. | en_US |
| dc.contributor.org | The Rice Inversion Project | en_US |
| dc.date.accessioned | 2017-05-05T19:00:53Z | en_US |
| dc.date.available | 2017-05-05T19:00:53Z | en_US |
| dc.date.issued | 2017 | en_US |
| dc.description.abstract | Subsurface-offset extended full-waveform inversion (FWI) may converge to kinematically accurate velocity models without the low-frequency data accuracy required for standard data-domain FWI. However, this robust alternative approach to waveform inversion suffers from a very high computational cost resulting from its use of nonlocal wave physics: The computation of strain from stress involves an integral over the subsurface offset axis, which must be performed at every space-time grid point. We found that a combination of data-fit driven offset limits, grid coarsening, and low-pass data filtering can reduce the cost of extended inversion by one to two orders of magnitude. | en_US |
| dc.identifier.citation | Fu, Lei and Symes, William W.. "An adaptive multiscale algorithm for efficient extended waveform inversion." <i>Geophysics,</i> 82, no. 3 (2017) Society of Exploration Geophysicists: R183-R197. http://dx.doi.org/10.1190/geo2016-0426.1. | en_US |
| dc.identifier.doi | http://dx.doi.org/10.1190/geo2016-0426.1 | en_US |
| dc.identifier.uri | https://hdl.handle.net/1911/94195 | en_US |
| dc.language.iso | eng | en_US |
| dc.publisher | Society of Exploration Geophysicists | en_US |
| dc.rights | Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. | en_US |
| dc.subject.keyword | full-waveform inversion | en_US |
| dc.subject.keyword | velocity analysis | en_US |
| dc.subject.keyword | imaging | en_US |
| dc.title | An adaptive multiscale algorithm for efficient extended waveform inversion | en_US |
| dc.type | Journal article | en_US |
| dc.type.dcmi | Text | en_US |
| dc.type.publication | publisher version | en_US |
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