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Wang & Dahlen 1995
Wang, Z. and Dahlen, F.A. (1995). Spherical-spline parameterization of three-dimensional earth models. Geophysical Research Letters 22: doi: 10.1029/95GL03080. issn: 0094-8276.

We propose a spherical surface-spline method that parametrizes a two-dimensional model on a sphere in terms of a local cubic B-spline basis on a triangular grid of knots with approximately equal interknot spacing. Numerical results show that such a parameterization can represent a model on a sphere with an accuracy equal to that of the spherical-harmonic parameterization of the corresponding nominal degree. Furthermore, it significantly reduces the computational time needed to calculate surface-wave synthetic seismograms on a laterally heterogeneous Earth, and makes it feasible to apply JWKB theory to surface-wave inversion studies. ¿ American Geophysical Union 1995

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Abstract

Keywords
Seismology, Core and mantle, Seismology, Surface waves and free oscillations, Seismology, Continental crust
Journal
Geophysical Research Letters
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Publisher
American Geophysical Union
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