Estimation of gravity field non-homogeneity and variation for the vertical network observations

Abstract

Lithuanian National Geodetic Vertical First Order Network was established for creation of up to date geodetic height reference which fulfils international requirements. Observation data of vertical network are under process of preparation for the new height system introduction. Estimation of real and normal gravity field equipotential surfaces misalignment and normal field equipotential surfaces non-parallelity was performed. Based on improved algorithm the effect of closest celestial bodies Moon and Sun was estimated. The obtained results were analysed.