1. Department of Physical Geography and Ecosystem Analysis; GeoBiosphere Science Centre, Lund University; Sweden
2. Department of Chemistry and Chemical Biology; Stevens Institute of Technology; New Jersey USA
3. Department of Water and Environmental Studies; Linköping University; Linköping Sweden
4. Department of Environmental Sciences; University of Kuopio; Kuopio Finland
5. RALA - Agricultural Research Institute; Reykjavik Iceland