Özet
We discuss an algorithm to regularize elastic waveform inversions using wavelet-based constructive approximations of the data, synthetic and observed, in models that evolve as part of a gradient-based iterative scheme relying on forward and adjoint modeling carried out with a spectral-element method. For an elastic Marmousi model we show how our wavelet-based multiscale waveform inversion proceeds successively from large to small scales in the seismograms, with a progressive increase of the complexity of the resulting model. We explore the sensitivity of surface waves in imaging shallow structure. To circumvent cycle skipping we designed an envelope-misfit function within a wavelet-multiscale framework. We test our approach in a toy model in preparation for inversions at full complexity.
Orijinal dil | İngilizce |
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Ana bilgisayar yayını başlığı | Society of Exploration Geophysicists International Exposition and 84th Annual Meeting SEG 2014 |
Yayınlayan | Society of Exploration Geophysicists |
Sayfalar | 1194-1199 |
Sayfa sayısı | 6 |
ISBN (Basılı) | 9781634394857 |
DOI'lar | |
Yayın durumu | Yayınlandı - 2014 |
Harici olarak yayınlandı | Evet |
Etkinlik | Society of Exploration Geophysicists International Exposition and 84th Annual Meeting SEG 2014 - Denver, United States Süre: 26 Eki 2014 → 31 Eki 2014 |
Yayın serisi
Adı | Society of Exploration Geophysicists International Exposition and 84th Annual Meeting SEG 2014 |
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???event.eventtypes.event.conference??? | Society of Exploration Geophysicists International Exposition and 84th Annual Meeting SEG 2014 |
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Ülke/Bölge | United States |
Şehir | Denver |
Periyot | 26/10/14 → 31/10/14 |
Bibliyografik not
Publisher Copyright:© 2014 SEG.