Subproject 10: Integrated analysis of Greenland ice mass balance and changing processes in the ocean

The central hypothesis of this sub-project is that there are interactions between Greenland icesheet and the surrounding ocean, which can be detected in geodetic and oceanographic data. We jointly analyze the gravimetric mass balance of Greenland and sea level variations in the North Atlantic (using an integrated approach) in order to separate between mass-driven and steric contributions. The increased freshwater supply of Greenland causes sea level changes and variations of temperature and salinity distributions, and it might change ocean currents and overturning circulations. Moreover, we will model relevant temperature and salinity changes, which cause steric variations in the ocean. By combining the results from geodetic and oceanographic investigations, we will get a better understanding of ocean dynamics due to climate change.