Research Unit 3 (Topic 3)
The Earth System from a polar perspective: Data, modelling and synthesis
Both reconstructions of past climates and projections of future climate change suggest that high-latitude regions react with particularly sensitivity to external forcing. We aim to unravel high latitude climate variability in time and space and understand the forcing mechanisms and global feedbacks that drive climate change at time scales ranging from the geological past over glacial cycles to the present and future.
We use an integrated approach including observations, palaeoenvironmental data, and Earth System modelling together with new drilling efforts of marine, lake, and ice cores to formulate and test hypotheses explaining the causes, mechanisms and feedbacks of climate change.
Using process-based knowledge from ice and geo-archives, we were able to test the applicability of Earth System models under external forcing. We put recent variability of the Earth System into a long-term context, and evaluated the models‘ potential to enhance future climate change predictions.