To resolve the Moho with surface waves alone, errors in the data must

Remaining phase-velocity perturbations 0.1-0.2 per cent only. Trade-offs will mask about 90 per cent of the Moho-depth signal, with Information (wavespeeds not known), strong Moho-depth/shear-speed However, in inversions of surface-wave data with no a priori Kilometres produce large (over 1 per cent) perturbations in phase If seismic wavespeeds within theĬrust and upper mantle are known, then Moho-depth variations of a few We use model-space mapping in order toĮlucidate surface waves' sensitivity to the Moho depth and the Moho properties yielded by a surface-wave inversion is still somewhat Inversion parameter in numerous surface-wave studies, the resolution of

Structure in surface-wave inversions have prompted doubts regarding Strong trade-offs between the Moho depth and crustal and mantle Sensitivity of both Rayleigh and Love waves to the Moho is evident fromĪ mere visual inspection of their dispersion curves or waveforms. Techniques (ambient-noise and teleseismic interferometry). In the last decade, surface-waveĬrustal imaging has been rejuvenated by the emergence of new, array Seismic surface waves have been used to study the Earth's crust since

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