South China Sea and Sulu Sea. Biogeosciences Discuss., 10, 12115-12153, doi:10.5194/bgd-9-4727-2012. Cherkasheva, A. (2014) Greenland Sea primary production with respect to changes in sea ice cover. PhD [...] RV SONNE, SO243 (ASTRA), Guayaquil (Equador) to Antofagasta (Chile), Oct 2015 RVHeincke, He462, North Sea, Bremerhaven to Sogne Fjord and back, Apr-May 2016 RV Polarstern, PS99, Fram Strait, Bremerhaven [...] 2017 RV Polarstern, PS113, Atlantc Ocean, Punta Arenas-Bremerhaven, May-Jun 2018 RVHeincke, He535, North Sea, Bremerhaven to Hegoland, Jun 2019 RV Polarstern, PS121, Fram Strait, Bremerhaven to Tromsö, Aug-Sep