1. Department of Geosciences,; Oregon State University,; Corvallis, Oregon, USA
2. U.S. Geological Survey,; Menlo Park, California, USA
3. Department of Civil Engineering,; Oregon State University,; Corvallis, Oregon, USA
4. CSIRO Land and Water,; Wembley, Western Australia, Australia
5. Working group Hydrogeology and Landscape Hydrology, Institute for Biology and Environmental Sciences,; Carl von Ossietzky University of Oldenburg,; Oldenburg, Germany
6. Pacific Northwest National Laboratory,; Richland, Washington, USA