1. Physics of Aquatic Systems Laboratory, Margaretha Kamprad Chair, ENAC, École Polytechnique Fédérale de Lausanne (EPFL) Lausanne Switzerland
2. Limnology Center, ENAC, École Polytechnique Fédérale de Lausanne (EPFL) Lausanne Switzerland
3. Environmental Physics GroupLimnological Institute, University of Konstanz Konstanz Germany
4. Department of Ecology and Genetics, LimnologyUppsala University Uppsala Sweden
5. Northern Water Problems Institute, Karelian Research Centre, Russian Academy of Sciences Petrozavodsk Russia