1. Department of Geography; University of Costa Rica; San Pedro Costa Rica
2. Institute of Environmental Engineering; ETH Zurich; Zurich Switzerland
3. Northern Rivers Institute; University of Aberdeen; Aberdeen Scotland
4. Department of Geography; Humboldt University Berlin; Berlin Germany
5. Department of Ecohydrology, IGB; Leibniz Institute of Freshwater Ecology and Inland Fisheries; Berlin Germany
6. Stable Isotope Research Laboratory; National University of Costa Rica; Heredia Costa Rica
7. Center for Geophysical Research; University of Costa Rica; San Pedro Costa Rica