TY - JOUR N2 - The GOCE (Gravity Field and Steady-State Ocean Circulation Explorer) has significantly upgraded the knowledge on the Earth gravity field. In this contribution the accuracy of height anomalies determined from Global Geopotential Models (GGMs) based on approximately 27 months GOCE satellite gravity gradiometry (SGG) data have been assessed over Poland using three sets of precise GNSS/levelling data. The fits of height anomalies obtained from 4th release GOCE-based GGMs to GNSS/levelling data were discussed and compared with the respective ones of 3rd release GOCE-based GGMs and the EGM08. Furthermore, two highly accurate gravimetric quasigeoid models were developed over the area of Poland using high resolution Faye gravity anomalies. In the first, the GOCE-based GGM was used as a reference geopotential model, and in the second – the EGM08. They were evaluated with GNSS/levelling data and their accuracy performance was assessed. The use of GOCE-based GGMs for recovering the long-wavelength gravity signal in gravimetric quasigeoid modelling was discussed. L1 - http://www.czasopisma.pan.pl/Content/98346/PDF/art1_Godah.pdf L2 - http://www.czasopisma.pan.pl/Content/98346 PY - 2014 IS - No 1 DO - 10.2478/geocart-2014-0001 KW - global geopotential model KW - GNSS/levelling KW - GOCE KW - least squares collocation KW - quasigeoid KW - height anomaly A1 - Godah, Walyeldeen A1 - Krynski, Jan A1 - Szelachowska, Małgorzata PB - Commitee on Geodesy PAS VL - vol. 63 DA - 2014 T1 - Accuracy assessment of GOCE-based geopotential models and their use for modelling the gravimetric quasigeoid - A case study for Poland UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/98346 T2 - Geodesy and Cartography ER -