Their goal is to retrieve records of the last collapse of the Greenland ice cap preserved in marine sediments off Greenland using unique drilling technology. Data on partial collapses of the ice cap from the last two warm periods, 130,000 and 420,000 years ago, will help researchers explore the stability and melting behavior of the largest ice mass in the Northern Hemisphere in a future warmer Earth climate. The new climate archive will allow the scientific team to study how ice sheet collapse, oceanic circulation and changes in the marine environment in Baffin Bay, where most of Greenland's ice streams flow, are interlinked.
The seafloor drilling rig MARUM-MeBo 200 will be used to reach deep enough into the continental slope of the Baffin Bay to recover the corresponding time intervals in sediment cores. In addition, water samples as well as plankton and sediment material will be collected.
The cruise is part of the research program in the Cluster of Excellence of the University of Bremen "The Ocean Floor - Earth’s Uncharted Interface", which is located at MARUM.
More information about the cluster here.