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 (Erasmus Fellow) at the Astronomical Institute of Amsterdam University, The Netherlands (1990-1991), and as a 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 has initially worked as a Marie Curie fellow at IAASARS/NOA (2005-2006) and then until 2019 as a research associate and post-doctoral fellow. He has also served as a research associate at IERSED/NOA (2007-2017) and RCAAM, Academy of Athens (2011-2015). He has been a visiting solar observer at Observatorio del Teide in Tenerife and Observatorio del Roque de los Muchachos in La Palma (Canary Islands, Spain) and a visitor researcher at Sterrekundig Instituut Utrecht (The Netherlands), Observatoire de Paris-Meudon (France), St-Andrews University (UK), Solar Physics Department of Ondřejov Observatory (Czech Republic), Instituto de Astrofisica de Canarias (Canary Islands, Spain), Institute of Theoretical Astrophysics (Oslo, Norway) and International Space Science Institute (bern, Switzerland). Since August 2019 he serves as Director Scientist at IAASARS/NOA.
Solar Physics (ground- and space-based observations and data analysis, radiative transfer, spectroscopy, quiet Sun and active region physics and dynamics), Sun-Earth connection, Space Physics and Space Weather, development of Space Weather forecasting algorithms and systems.