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2014 | OriginalPaper | Buchkapitel

Combination of Geometric and Orthometric Heights in the Presence of Geoid and Quasi-geoid Models

verfasst von : C. Kotsakis, I. Tsalis

Erschienen in: Gravity, Geoid and Height Systems

Verlag: Springer International Publishing

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Abstract

A generalization of the well-known relationship between geometric and orthometric heights is presented in this paper. The advantage of our revised formulation is that, instead of the non-determinable true orthometric heights, it employs the (most commonly used in geodetic practice) Helmert orthometric heights. Based on standard concepts from physical geodesy theory and straightforward analytical derivations, we obtain a set of linearized constraints relating the geometric and Helmert orthometric heights in the presence of a geoid or quasi-geoid model. These constraints should be theoretically satisfied in the case of errorless data and thus they provide a standard framework for the joint analysis and the quality testing of heterogeneous heights in a terrestrial network.

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Fußnoten
1
If the geoid model does not include a zero-degree term then the W o value is solely dictated by the normal gravity potential of the underlying reference ellipsoid and the mass difference between the actual Earth and the reference ellipsoid, i.e. W o = f(U o, δM).
 
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Metadaten
Titel
Combination of Geometric and Orthometric Heights in the Presence of Geoid and Quasi-geoid Models
verfasst von
C. Kotsakis
I. Tsalis
Copyright-Jahr
2014
DOI
https://doi.org/10.1007/978-3-319-10837-7_30