1. * University of Cape Town, Cape Town, South Africa, and Laboratory of Heat Transfer and Environmental Engineering, Aristotle University, Thessaloniki, Greece
2. South African Weather Service, Pretoria, South Africa
3. University of Cape Town, Cape Town, South Africa, and Centre de Recherches de Climatologie, Biogéosciences CNRS, Université de Bourgogne, Dijon, France
4. European Commission Joint Research Centre, Institute for Environment and Sustainability, Ispra, Italy
5. Rossby Centre, Swedish Meteorological and Hydrological Institute, Norrköping, Sweden
6. ** Institut für Meteorologie und Klimaforschung, Karlsruher Institut für Technologie, Karlsruhe, Germany
7. Potsdam Institute for Climate Impact Research, Potsdam, Germany