Abstract:
The gravimetric model of the Slovak quasigeoid (GMSQ98A) was determined using FFT techniques for numerical integration of Stokes formula. The solution was tested at 42 GPS/leveling points. The 4th degree polynomial model was used for reducing differences. The RMS after reduction of differences, was 6 cm (Mojzeš and Janák, 1998). For the computation of the new gravimetric quasigeoid of Slovakia (GMSQ98BF), the same point gravity data were used but with a 20”x 30”(600 m x 600 m) grid and with a 6th degree polynomial model with 18 coefficients for fitting. After rejecting 4 GPS/leveling points, the RMS value was 2.4 cm.