1. Andra, Research and Development Division, 1-7 rue Jean Monnet, 92298 Châtenay-Malabry, France.
2. Subatech, Ecole des Mines de Nantes, Université de Nantes, CNRS/IN2P3, 44307 Nantes, France.
3. Department of Thematic Studies—Water and Environmental Studies, Linköping University, SE-581 83 Linköping, Sweden
4. Département R&D, Office National des Forêts, Boulevard de Constance, 77300 Fontainebleau, France.