Prof. Christopher Kotsakis
Prof. Christopher Kotsakis is a professor of Geodesy in the School of Rural and Surveying Engineering at the Aristotle University of Thessaloniki, Greece. He holds a PhD degree in Geomatics Engineering from the University of Calgary, and he works on the areas of satellite and physical geodesy since 1995. His research is focused on data analysis and optimization techniques for geodetic estimation problems, with special emphasis on geodetic reference frames, GNSS-based positioning and modern height systems. He is an elected Fellow of the International Association of Geodesy (IAG) and currently serving as President of IAG Commission 1 on Reference Frames (2020-2024). He is a past Editorial board member of the Journal of Geodesy, and a former member and chairman of several IAG special study groups and joint working groups.