Julia Muchowski, Stockholm University, Geological Sciences, Stockholm, Sweden, Lars Umlauf, Leibniz Institute for Baltic Sea Research (IOW), Warnemuende, Germany, Lars Arneborg, Swedish Meteorological and Hydrological Institute, Oceanography Research Dept., Norrköping, Sweden, Elizabeth Frances Weidner, University of New Hampshire Main Campus, Durham, NH, United States, Peter Ludwig Holtermann, Leibniz Institute for Baltic Sea Research (IOW), Rostock, Germany, Jen-Ping Peng, Leibniz Institute for Baltic Sea Research (IOW), Physical Oceanography, Rostock, Germany, Christoph Humborg, Stockholm University, Baltic Sea Centre, Stockholm, Sweden and Christian Stranne, Stockholm University, Department of Geological Sciences, Stockholm, Sweden