1. a Climatology, Climate Dynamics and Climate Change, Department of Geography, Justus Liebig University Giessen, Giessen, Germany
2. b Joint Research Centre, European Commission, Ispra, Italy
3. c Centre of International Development and Environmental Research, Justus Liebig University Giessen, Giessen, Germany
4. d Department of Meteorology and Climatology, School of Geology, Aristotle University of Thessaloniki, Thessaloniki, Greece
5. e Max Planck Institute for Meteorology, Hamburg, Germany