The Doctoral Thesis focuses on geodynamic phenomena. Geodynamics covers a lot of processes operating continuously in the Earth’s system. Within the frames of the Thesis the research on crustal motion, reference frames, postglacial rebound, and sea level variations has been carried out. To this end, the application of two principal space geodetic techniques – Global Navigation Satellite System (GNSS) and Satellite Laser Ranging (SLR) – has been particularly considered. The Thesis includes 61 figure, 26 formulas, 9 tables, and 2 appendices. The total volume of the Thesis is 136 pages.