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Document type:
Zeitschriftenaufsatz 
Author(s):
Bucha, Blažej; Hirt, Christian; Kuhn, Michael 
Title:
Divergence-free spherical harmonic gravity field modelling based on the Runge--Krarup theorem: a case study for the Moon 
Abstract:
Recent numerical studies on external gravity field modelling show that external spherical harmonic series may diverge near or on planetary surfaces. This paper investigates an alternative solution that is still based on external spherical harmonic series, but capable of avoiding the divergence effect. The approach relies on the Runge--Krarup theorem and the iterative downward continuation. In theory, Runge--Krarup-type solutions are able to approximate the true potential within the entire space...    »
 
Journal title:
Journal of Geodesy 
Year:
2019 
Journal volume:
93 
Month:
Apr 
Journal issue:
Pages contribution:
489--513 
Print-ISSN:
1432-1394