1. CEREGE, CNRS, Aix Marseille Univ, IRD, INRAE, Aix-en-Provence 13545, France
2. OSUG, UAR 832 CNRS - Univ. Grenoble Alpes, IRSTEA, INRAE, Météo-France, Grenoble 38000, France
3. Civil and Environmental Engineering, Duke University, Durham, North Carolina 27708, United States