1. Lawrence Livermore National Laboratory; Livermore California USA
2. Deltares; Unit Soil and Groundwater Systems; Utrecht Netherlands
3. TNO; Geological Survey of the Netherlands; Utrecht Netherlands
4. Critical Zone Hydrology Group; VU University; Amsterdam Netherlands
5. Climate and Environmental Physics; University of Bern; Bern Switzerland
6. Department of Oceanography; Institute of Environmental Physics, Universität Bremen; Bremen Germany
7. Vitens Water; Zwolle Netherlands