1. Leibniz Institute for Baltic Sea Research Warnemünde Rostock Germany
2. Leibniz Institute for Plasma Science and Technology e.V. (INP Greifswald) Greifswald Germany
3. Department of Geosciences, Guyot Hall Princeton University Princeton New Jersey
4. Department of Environmental Sciences University of Basel, Aquatic and Stable Isotope Biogeochemistry Basel Switzerland
5. National Institute of Water and Atmospheric Research (NIWA) Kilbirnie Wellington New Zealand
6. Department of Chemistry University of Otago Dunedin New Zealand