(1) University of Augsburg, Institute of Geography, Augsburg, Germany (elke.hertig@geo.uni-augsburg.de), (2) Wegener Center for Climate and Global Change, University of Graz, (3) Department of Meteorology, Eötvös Loránd University, Budapest, (4) Department of Meteorology, Eötvös Loránd University, Budapest, (5) Laboratoire des Sciences du Climat et de l’Environnement (LSCE-IPSL), (6) Institute of Geodynamics, Romanian Academy, Bucharest, (7) Institute of Physics of Cantabria (IFCA), University of Cantabria, (8) Department of Meteorology and Climatology, University of Lodz, (9) Federal Office of Meteorology and Climatology MeteoSwiss, Zurich, (10) Instituto Dom Luiz, Faculdade de Ciencias, Universidade de Lisboa