HR: 1340h
AN: G43B-1201    [Abstracts]
TI: Vertical component of the Earth's surface movement in the region of Central Europe (Czech Republic) from the results of satellite geodesy methods and their comparison with the results of repeated terrestrial geodetic methods.
AU: * Zeman, A
EM: zeman@fsv.cvut.cz
AF: CTU Prague, Faculty of Civil Engineering Dept. of Advanced Geodesy, Thakurova 7, Prague, 166 29, Czech Republic
AU: Kostelecky, J
EM: kost@fsv.cvut.cz
AF: CTU Prague, Faculty of Civil Engineering Dept. of Advanced Geodesy, Thakurova 7, Prague, 166 29, Czech Republic
AU: Kostelecky, J
EM: kost@fsv.cvut.cz
AF: RIGTC Zdiby, Ustecka 98, Zdiby, 25066, Czech Republic
AU: Rysavy, V
EM: vit.rysavy@fsv.cvut.cz
AF: CTU Prague, Faculty of Civil Engineering Dept. of Advanced Geodesy, Thakurova 7, Prague, 166 29, Czech Republic
AB: Model EGG97 (European Gravimetric Geoid) was created for Europe well fitting even for the territory of the Czech Republic. Simultaneously the Geodynamic Network of the Czech Republic was founded for monitoring of recent dynamics of the Earth's surface. The sites of this network were observed by GPS(Navstar). At the end of the 19. century levelling observations were started, not too precise, but covering the whole territory of the Central Europe (Austro - Hungarian Empire) and observations were continuously precised. At the 20. century levelling network on the territory of Czech Republic was reobserved several times and the results of individual epochs were mutually compared. Long-term tendencies of the vertical component of the point positions at that dense network of levelling points were determined on the basis of these comparisons. Comparisons of the results of GPS observations of the sites of geodynamic network led (combined with the EGG97 geoid model) to conclusions that the differences of such determined heights with the levelled heights valid for height system of the Czech Republic contain, considering that the valid heights are more than 30 years old, very interesting information about the evolution of the height component of the positions of these points, which well correlate with comparable time intervals of the differences of repeated levellings carried out on the territory of the same extent. These demonstrable parallels of both more or less independent mothods of processing lead to the conclusions about vertical dynamics of the territory of the Czech Republic. Results are breafly completed by geological information, which explain some of the fundamental geodynamic tendencies of that territory. Geodetic results along with their geological interpretations can be the basis to work out the geodynamic model of the territory of Czech Republic.
DE: 1240 Satellite geodesy: results (6929, 7215, 7230, 7240)
SC: Geodesy [G]
MN: 2007 Fall Meeting