Testování modelu kvazigeoidu na Ostravsku

Abstract

The aim of my Master’s thesis is to carry out the testing in development of the quasigeoid models with own surveying by GNSS levelling technology in the Ostrava territory. Czech quasigeoids have been chosen for the testing – CR2000 and its updated version CR2005 and Earth quasigeoids EGM2008 and Eigen 6C3-stat. In the first part of my thesis, the theory of undulation calculation and the description of particular quasigeoids – their initial data and progress of calculation are introduced. In the second part, the surveying principles of GNSS levelling technology are clarified. The very last part is dedicated to own surveying on 22 points of chosen profile Nová Bělá- Žabeň. The processing of measured data included their accuracy was carried out. Furthermore, undulation calculation and resultant comparison of GNSS levelling undulations with the undulations calculated for particular quasigeoids.