There was a fruitful and close cooperation between the several project partners, including international partners in Japan and Spain. The most important contributions came from AWI, ILTS and IOW. Over the project term, we had six common meetings in Bremerhaven, Potsdam and Warnemünde. These meetings further stimulated the already close cooperation between the project partners. Additionally, there were several visits of scientists to the partner institutes facilitating exchange of ideas and scientific findings. Very important for the project was the stay of the doctoral student responsible for basal hydrology at AWI. Under the supervision of AWI and together with PIK scientists, he improved an existing simple and developed a new advanced model of the basal hydrological system of ice sheets (HYDRO and CAUS). Likewise, the cooperation with IOW was exceptionally close and they contributed to the project with developments for an estuarine circulation model and simulation of a Greenland fjord with this model. These simulations provided important support for the climate projections performed at PIK. Last not least, ILTS provided PIK with highly competent support in usage of the most recent version of the ice sheet model SICOPOLIS and substantially helped PIK and AWI in coupling SICOPOLIS with the module of basal hydrology HYDRO.