He works as Research Director at the Institute of Environmental Research and Sustainable Development of the National Observatory of Athens. He received his B.Sc. degree in Mathematics (1989) from the Dept. of Mathematics of the University of Athens, Greece. He has also been awarded with a M.Sc. in Meteorology and Atmospheric Environment (1992) and a Ph.D. degree in Atmospheric Physics (1997), both from the Dept. of Physics of the University of Athens, Greece. His current research topics of scientific interests despite solar radiation research, modelling and applications, are air-quality and meteorological measurements, environmental management and risk assessment using GIS techniques, analysis of climate change impacts, air pollution and meteorological instrumentation. Responsible scientist for both historic Actinometric Stations at Thission and Penteli sites, and also for the new expanding network of radiometric stations.