1. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research; Bremerhaven Germany
2. P. P. Shirshov Institute of Oceanology RAS; Moscow Russia
3. MARUM-Center for Marine Environmental Sciences; Bremen Germany
4. Department of Mathematics and Logistics; Jacobs University; Bremen Germany
5. A. M. Obukhov Institute of Atmospheric Physics RAS; Moscow Russia
6. Department of Physics and Mathematics; University of Alcala; Alcala Spain
7. Institute of Environmental Physics; University of Bremen; Bremen Germany