1. Watershed and Water Security Unit CATIE Turrialba Costa Rica
2. Department of Architecture, Civil Engineering and Environmental Sciences, Institute of Geoecology Technical University of Braunschweig Braunschweig Germany
3. Department of Geography and Water and Global Change Observatory University of Costa Rica San Jose Costa Rica
4. Northern Rivers Institute University of Aberdeen Aberdeen UK
5. Stable Isotopes Research Group and Water Resource Management Laboratory, School of Chemistry Universidad Nacional Heredia Costa Rica