Combined algorithms of high-frequency topographical effects for the boundary-value problems based on Helmert's second condensation method
Jian Ma,
Ziqing Wei,
Zhenhe Zhai
et al.
Abstract:The Helmert’s second condensation method is usually used to condense the topographical masses outside the boundary surface in the determination of the geoid and quasi-geoid based on the boundary-value theory. The condensation of topographical masses produces direct and indirect topographical effects. Nowadays, the Remove-Compute-Restore (RCR) technique has been widely utilized in the boundary-value problems. In view of spectral consistency, high-frequency direct and indirect topographical effects should be use… Show more
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