1. CNRS, LIVE UMR 7362, LTER - “Zone Atelier Environnementale Urbaine”; 3, rue de l'Argonne F-67083 Strasbourg France
2. Environmental Research and Innovation Department, Catchment and Eco-hydrology research group; Luxembourg Institute of Science and Technology; 41 rue du Brill L-4422 Belvaux Luxembourg
3. ICube Laboratory, UMR 7357, Photogrammetry and Geomatics Group, INSA de Strasbourg; 24, boulevard de la Victoire F-67084 Strasbourg France