1. a Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 Ås, Norway
2. b Norwegian Institute of Bioeconomy Research, Post Box 115, NO-1431 Ås, Norway
3. c Department of Geosciences, University of Oslo, P.O. Box 1047 Blindern, Oslo 0316, Norway
4. d Department of Hydrogeoology, Lithuanian Geological Survey under The Ministry of Environment, S. Konarskio 35, Vilnius 03100, Lithuania
5. e Faculty of Geography and Earth Sciences, University of Latvia, Jelgavas Street 1, Riga LV-1004, Latvia
6. f Geological Survey of Norway, P.O. Box 6315 Torgarden, Trondheim NO-7491, Norway
7. g Geological Survey of Denmark and Greenland – GEUS, Universitetsbyen 81, bygning 1872, Århus C 8000, Denmark
8. h Iceland GeoSurvey, Urðarteigi 8, Kópavogi 203, Iceland
9. i Department of Geology, Institute of Ecology and Earth Sciences, University of Tartu, Ravila 14A, Tartu 50411, Estonia
10. j Geological Survey of Estonia, F.R. Kreutzwaldi 5, Rakvere 44314, Estonia
11. k Water, Energy and Environmental Engineering Research Unit, University of Oulu, Oulu, Finland