New images of the Earth's upper mantle from measurements of surface wave phase velocity anomalies

By Lapo Boschi, G. Ekström. 2002

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View Paper: https://www.semanticscholar.org/paper/303fa0ee762503a16a5502f9a3335cbb759a2208

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In Geophysics

Citations in the corpus

Radial seismic anisotropy as a constraint for upper mantle rheology (2007, background): “D sensitivity kernels (Boschi and Ekström, 2002), and lateral variations are also stable with respect to the potential interference of overtones, which complicate particularly Love phase velocity measurements (Nettles and Dziewoński, 2008).”
Constraining P-wave velocity variations in the upper mantle beneath Southeast Asia (2006, background): “Application of crustal correction in global surface wave tomography is common practice, see, e.g.,Boschi and Ekstr̈om (2002), but such corrections are not yet routinely considered in regional and global travel time tomography.”
Global upper-mantle tomography with the automated multimode inversion of surface and S-wave forms (2006, methodology): “D reference models have been used in the inversion of phase- or groupvelocity data (e.g. Boschi & Ekström 2002; Shapiro & Ritzwoller 2002) but not in a direct inversion of waveforms for seismic velocity structure.”
Savani: A variable resolution whole‐mantle model of anisotropic shear velocity variations based on multiple data sets (2014, methodology): “…highest peak in sensitivity of fundamental-mode surface waves, which we compute numerically in the framework of a Jeffreys-Wentzel-Kramers-Brillouin (JWKB) description of surface wave propagation [e.g., Boschi and Ekström, 2002], is found at larger depth and is weaker, with decreasing frequency.”
Statistical properties of seismic anisotropy predicted by upper mantle geodynamic models (2006, unknown): “, 3% RMS variations in (vSH vSV)/vS at 100 km depth in Boschi and Ekström’s [2002] model.”
Comparison of azimuthal seismic anisotropy from surface waves and finite strain from global mantle-circulation models (2003, background): “7a), smaller-scale structure owing to density anomalies is most clearly visible within continental plates, which were characterized by large-scale trends for plate motions alone.”
Seismic imaging: From classical to adjoint tomography (2012, background): “, 2001, 2009 for reviews regarding regional subduction slab analysis), mid/lower mantle (Boschi and Ekström, 2002; Grand et al., 1997; Gu et al., 2003; Kárason and van der Hilst, 2000; Mégnin and Romanowicz, 2000; Ritsema and van Heijst, 2000; Zhao, 2001a), the lowermost mantle (Gu et al.”
Importance of crustal corrections in the development of a new global model of radial anisotropy (2010, methodology): “…model B (dash‐dotted line), model C (dotted line), and model D (thick dashed line). local eigenfunction calculations along a great circle path [e.g., Boschi and Ekström, 2002] was used to correct a large data set of fundamental and overtone surface wave phase velocity measurements for three…”
A Three-Dimensional Radially-Anisotropic Model of Shear Velocity in the Whole Mantle (2006, background): “Surface waves are strongly sensitive to crustal structure, and previous studies have shown that even the sensitivity of long-period surface waves at depths as large as 200 km can be affected by the local crustal structure (Boschi & Ekström 2002).”