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Solving or resolving global tomographic models with spherical wavelets, and the scale and sparsity of seismic heterogeneity
2011
Geophysical Journal International
We propose a class of spherical wavelet bases for the analysis of geophysical models and for the tomographic inversion of global seismic data. Its multiresolution character allows for modeling with an effective spatial resolution that varies with position within the Earth. Our procedure is numerically efficient and can be implemented with parallel computing. We discuss two possible types of discrete wavelet transforms in the angular dimension of the cubed sphere. We describe benefits and
doi:10.1111/j.1365-246x.2011.05190.x
fatcat:3y76j3bjkvad3kze3gtapq4iwu