He was born in Goettingen, Low Saxony, Germany. He is a full Professor at the Department of Geodesy and Surveying, School of Rural and Surveying Engineering of the Aristotle University of Thessaloniki and the Director of the Laboratory of Gravity Field Research and Applications (GravLab). His scientific expertise is focused on physical geodesy, vertical datum and height system unification, the International Height Reference System and its realization trough the IRHF, local and regional gravity field modeling, satellite altimetry, satellite geodesy, spectral methods in physical geodesy, ocean bathymetry estimation, sea surface topography modeling, inversion of gravity field data in geodesy and geophysics. He is a regular reviewer in numerous scientific journals (Journal of Geodesy (J Geod 2003(77): 487-488; J Geod 2004(78): 223-224); Journal of Geodetic Science; Journal of Geodynamics; Computer and Geosciences, etc.). Regular reviewer of research proposals in various national and European calls (NSRF, ELIDEK, H2020, CERIN, Polish National Agency, etc.). He has participated in more than 25 research projects, either as principal investigator or coordinator, focusing on geoid determination, satellite geodesy and positioning. He is the Director of the International Association of Geodesy IGFS service (http://igfs.topo.auth.gr) CB and the Chair of IAG Sub-commission SC2.2 “Geoid, Physical Height Systems and vertical datum unification”. He is currently the President of the IAG International Gravity Field Service Central Bureau, the Director of the IAG IHRS/IHRF Coordination Center, IGFS Representative to the GGOS Governing Board and Chair of IAG Sub-Commission 2.2 “Methodology for Geoid and Physical Heights”. Author of more than 110 papers in scientific journals and conference proceedings with referees, 220 presentations in conferences and 12 papers in honorary volumes. More than 660 citations and h-index=15 (Scopus©).
Dipl. Eng. Rural and Surveying Engineer, School of Rural and Surveying Engineering, Faculty of Eingeering, A.U.Th., 2000
Master of Science, Department of Geomatics Engineering, University of Calgary, Canada, 2002
Ph.D. in Satellite and Physical Geodesy, Department of Geodesy and Surveying, School of Rural and Surveying Engineering, Faculty of Eingeering, A.U.Th., 2006 “Study of the Earth’s Gravity Field and Sea Surface Topography in Greece by combining surface data and data from the new satellite missions of CHAMP and GRACE”
- Gravity field modeling
- Satellite altimetry
- Spectral and stochastic methods in geodesy
- Physical oceanography
- Determination of bathymetry from satellite data
- Determination of dynamic and time-varying marine topography
- Space methods in geodesy and geophysics (GPS, radar altimetry, CHAMP/GRACE/GOCE)
- Height systems
- Geoid determination
- Gravimetry
- Time-varying gravity field