Dr Kostas Tziotziou obtained his B.Sc. in Physics from the Aristotle University of Thessaloniki, Greece in 1992 and his PhD in Astrophysics from the University of Utrecht, The Netherlands, in 1997. He has worked as an undergraduate student at the Astronomical Institute of Amsterdam University, The Netherlands (1989-1991), and as a research associate (Post Doctoral fellow) at Observatoire de Paris-Meudon, France (1999-2002), ISARS/ National Observatory of Athens, Greece (2002-2003) and the Astronomical Institute of Utrecht, The Netherlands (2003-2005). Since 2005 he is affiliated with the National Observatory of Athens (IAASARS and IERSED) and since 2011 he is also working as a research associate at RCAAM, Academy of Athens, Greece. He has been a visiting solar observer at Observatorio del Teide in Tenerife and Observatorio del Roque de los Muchachos in La Palma, Spain.
Solar Physics (observations and data analysis, spectroscopy, radiative transfer, quiet Sun and active region physics and dynamics), Space Physics and Space Weather