Task 1.1: Retrieve, Update and synchronize Greenland ice core records with North Atlantic to Arctic marine climate records at specific time slice intervals (Eemian, IS 9-6, Holocene Thermal Maximum, Last 200 years (instrumental period).
During the summers of 2015/16 shallow ice cores will be drilled in Eastern Greenland, in order to update existing ice core records from this region to present. During the spring/summer of 2015 an ice core will be drilled to bedrock through the Renland ice cap. Water stable isotope measurements and chemical impurity data will be measured on the ice cores. This will yield proxies both for local climatic conditions and climatic conditions in the precipitation source areas and sea ice. Marine Coring will be performed in the Eastern Nordic Seas and along the East Greenland margin. The purpose is to update existing core material with high-resolution records and to obtain material for direct correlation with results from the Renland records. In 2016 a marine core will be retrieved from the Vøring Plateau, where we know from ultra-high resolution seismic imaging that a 7m thick Eemian section is available at about 50m below sea floor. Cross dating of Marine Cores and Ice Cores will be performed using tephra analysis.