Hochpräzise Bestimmung eines astrogeodätischen Quasigeoidprofils im Harz für die Validierung des Quasigeoidmodells GCG05

authored by: Christian Hirt, Uwe Feldmann-Westendorff, Heiner Denker, Jakob Flury, Cord Hinrich Jahn, Andreas Lindau, Günter Seeber, Christian Voigt
Abstract: This paper deals with the determination of a high-precision astrogeodetic quasigeoid profile for the validation of the gravimetric quasigeoid model GCG05 in the Harz mountains in Northern Germany. The Hannover Digital Zenith Camera System TZK2-D was used for the observation of new vertical deflection data at densely spaced stations (500-600 m average station spacing) along a 63 km long traverse over the Harz mountains. For the computation of the astrogeodetic quasigeoid profile, the method of astronomical-topographic levelling was applied, using digital terrain model data for the interpolation of vertical deflections. The accuracy of the astrogeodetic quasigeoid profile has been estimated to be about 1.5-2mm. The comparison between the astrogeodetic solution and the gravimetric model GCG05 shows a RMS error of about 3mm and maximum differences of 7 mm.
Organisation(s): Institute of Geodesy
External Organisation(s): Universität Hamburg
Physikalisch-Technische Bundesanstalt PTB
State Office for Geoinformation and Surveying of Lower Saxony
University of Texas at Austin
Type: Article
Journal: ZFV - Zeitschrift fur Geodasie, Geoinformation und Landmanagement
Volume: 133
Pages: 108-119
No. of pages: 12
ISSN: 1618-8950
Publication date: 2008
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: General Earth and Planetary Sciences
Electronic version(s): https://geodaesie.info/zfv/heftbeitrag/596 (Access: Unknown)
: Details in the research portal "Research@Leibniz University"

BibTeX

@article{f962ecf7ed014199a73aa8537522df49,
title = "Hochpr{\"a}zise Bestimmung eines astrogeod{\"a}tischen Quasigeoidprofils im Harz f{\"u}r die Validierung des Quasigeoidmodells GCG05",
abstract = "This paper deals with the determination of a high-precision astrogeodetic quasigeoid profile for the validation of the gravimetric quasigeoid model GCG05 in the Harz mountains in Northern Germany. The Hannover Digital Zenith Camera System TZK2-D was used for the observation of new vertical deflection data at densely spaced stations (500-600 m average station spacing) along a 63 km long traverse over the Harz mountains. For the computation of the astrogeodetic quasigeoid profile, the method of astronomical-topographic levelling was applied, using digital terrain model data for the interpolation of vertical deflections. The accuracy of the astrogeodetic quasigeoid profile has been estimated to be about 1.5-2mm. The comparison between the astrogeodetic solution and the gravimetric model GCG05 shows a RMS error of about 3mm and maximum differences of 7 mm.",
author = "Christian Hirt and Uwe Feldmann-Westendorff and Heiner Denker and Jakob Flury and Jahn, {Cord Hinrich} and Andreas Lindau and G{\"u}nter Seeber and Christian Voigt",
note = "Copyright: Copyright 2011 Elsevier B.V., All rights reserved.",
year = "2008",
language = "Deutsch",
volume = "133",
pages = "108--119",
journal = "ZFV - Zeitschrift fur Geodasie, Geoinformation und Landmanagement",
issn = "1618-8950",
publisher = "Wissner Verlag",
number = "2",
}