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GROCE Greenland Ice Sheet Ocean Interaction


01.05.2017 – 30.04.2020

01.07.2020 – 30.06.2023


BMBF (Bundesministerium für Bildung und Forschung)


Prof. Dr.-Ing. Jürgen Kusche

Dr.-Ing. Roelof Rietbroek

Dr. rer. nat. Sophie Stolzenberger


More than 25% of mean global sea level rise is caused by mass loss of Greenland ice sheet. Due to the increased warming of the North Atlantic, which has already reached the Norwegian Sea and the Arctic, also glaciers at the northeast coast of Greenland are affected by mass loss. The collaborative research project GROCE aims to get an in-depth knowledge of changing processes and dynamics in Greenland ice sheet and the interaction with the surrounding ocean. The focus of the project is the region around the 79°N glacier and the North East Greenland Ice Stream (NEGIS). Our sub-project will analyze the gravimetric mass balance of Greenland ice sheet and sea level changes in the North Atlantic. Furthermore, we will study relevant changes in temperature and salinity by oceanographic modeling.

In GROCE-2, we focus, among other things, on the qualitative evaluation of CMIP6 climate models in comparison to the ocean simulations we perform. For this purpose, it is mandatory to investigate the influence of uncertainties caused by (regional) atmospheric influences and model resolution. Furthermore, we will determine altimetric-gravimetric mass balances including the time period before GRACE started.

More information can be found at