Abstract
In addition to the traditional way of realizing height systems based on spirit levelling and local gravity observations methods based on gravity field models and GNSS observations become more important. This contribution validates recent global gravity field models (GGM) with independent GNSS/levelling data in Germany. A European GNSS/levelling data set and a GOCO02S and EGM2008 combined GGM are used to unify the national European height systems. The comparison of the results to the traditional approach results based on the United European Levelling Network (UELN) confirms the high potential of this method although in most cases the satellite only GGMs need to be densified by additional terrestrial observations.
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Acknowledgments
The work was funded as part of the REAL-GOCE joint research project within the Geotechnologien program of the German Ministry of Education and Research (BMBF) under grant 03G0727A.
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Rülke, A., Liebsch, G., Schäfer, U., Schirmer, U., Ihde, J. (2014). Height System Unification Based on GOCE Gravity Field Models: Benefits and Challenges. In: Flechtner, F., Sneeuw, N., Schuh, WD. (eds) Observation of the System Earth from Space - CHAMP, GRACE, GOCE and future missions. Advanced Technologies in Earth Sciences. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-32135-1_19
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DOI: https://doi.org/10.1007/978-3-642-32135-1_19
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