Long time span of observations from GNSS permanent stations can be used in the development of models of vertical crustal movements. The absolute vertical crustal movement related to the ellipsoid consists of the observed movement with relation to the mean sea level, the eustatic movement and the geoid uplift. The geoid uplift can be determined from GRACE and GOCE satellite missions observations. The calculated parameters can be compared with the theoretical ones.

The aim of this study is to check the correlation between vertical crustal movements and a geoid uplift determined from satellite data. GNSS data and satellite observations for north eastern Polish border areas were used as a case study. GNSS data were obtained from permanent stations of ASG-EUPOS and LITPOS systems, which are the Polish and Lithuanian multifunctional systems respectively. Changes of the ellipsoidal heights from more than 5 years of observations were used as input data. Temporal variations of geoid were calculated based on the geopotential models from satellite observations. The obtained results give an overview of a possibility of the proposed method usage.

DOI: https://doi.org/10.3846/enviro.2017.206