One of the main research areas of IOPAS is to study the role of the oceans in climate change and its effects for the European Seas. In Arctic ROOS IOPAS will contribute with annual field expeditions in the Greenland Sea and Fram Strait to study oceanographic phenomena including heat and salt fluxes and its variability; mass and heat exchange between sea and atmosphere; observation and modelling of radiation fluxes in the sea – atmosphere system; mesoscale structures; water mass formation and internal waves; energetics of primary production; climate induced changes in the marine food web; biodiversity of glaciated fjords along environmental gradients.