Dr. Spiros Pagiatakis is interested in the dynamics of the Earth, both in global and regional/local scales, as observed by geodetic techniques. On-going research includes the determination of the glacial isostatic adjustment signature from more than 50 years of terrestrial gravity observations in Canada and GRACE gravity mission level-2 data. Research interests also expand in the area of physical geodesy, and in particular in the determination of the geoid (local and global scales) and of the sea surface topography. Other research activities include the study of the response of the Earth to ocean tide loading, spectral methods and their application to the analyses of superconducting gravimeter (GWR), Very Long Baseline Interferometry (VLBI) and GPS time series.