Synchronising the occurence of Heinrich events and Dansgaard-Oeschger cycles in a coupled ice sheet-solid earth model

The northern hemisphere climate during the last glacial period (about 65,000-15,000 years before present) was dominated by two prominent signals of glacial climate variability, known as Dansgaard-Oeschger cycles and Heinrich events. The episodic Heinrich events tend to coincide with cold phases of the Dansgaard-Oeschger cycles, suggesting a close connection. I will talk about a novel mechanism that allows for Heinrich events to be locked into the cooling phase of Dansgaard-Oeschger cycles.

Ned Williams

Understanding the Role of Atlantic Multidecadal Variability for European Summer Predictability

Atlantic Multidecadal Variability (AMV) is known to play a role in European summer decadal variability, but limited observations of decadal climate variability mean that relevant mechanisms are hard to disentangle. Large ensembles of historical and hindcast simulations using MPI-ESM-LR are used to distinguish the roles of tropical and extratropical AMV SSTs in driving atmospheric circulation variability relevant to Europe, as well as model capability in simulating and predicting these impacts.