1. Estonian Marine Institute, University of Tartu, Tallinn, Estonia
2. Eawag, Swiss Federal Institute of Aquatic Science and Technology, Surface Waters – Research and Management, Kastanienbaum, Switzerland
3. Physics of Aquatic Systems Laboratory, Margaretha Kamprad Chair, ENAC-IEE-APHYS, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland