3D large-scale forward modeling of gravitational fields using triangular spherical prisms with polynomial densities in depth
Fang Ouyang,
Long-wei Chen,
Leyuan Wu
Abstract:To take the sphericity of the Earth into account, tesseroids are often utilized as grid elements in large-scale gravitational forward modeling. However, such elements in a latitude–longitude mesh suffer from degenerating into poorly shaped triangles near poles. Moreover, tesseroids have limited flexibility in describing laterally variable density distributions with irregular boundaries and also face difficulties in achieving completely equivalent division over a spherical surface that may be desired in a gravi… Show more
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