1. Interdisciplinary Environmental Research Centre, TU Bergakademie Freiberg, Brennhausgasse 14, 09599 Freiberg, Germany
2. Institute of Geography, Georg-August University Göttingen, Goldschmidtstraße 5, 37077 Göttingen, Germany
3. Institute of Energy and Climate Research, IEK-6, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany