EGU General Assembly 2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Atlantic Multidecadal Variability and the Implications for North European climate 

Florian Börgel1, H. E. Markus Meier1, Matthias Gröger1, Cyril Dutheil1, Monika Rhein2, Leonard Borchert3, and Hagen Radtke1
Florian Börgel et al.
  • 1Leibniz Institute for Baltic Sea Research, Warnemünde, Rostock, Germany (
  • 2MARUM - Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany
  • 3Center for Earth System Research and Sustainability CEN, Universität Hamburg, Germany

The North Atlantic exhibits temperature variations on multidecadal time scales, summarized as the Atlantic Multidecadal Variability (AMV). The AMV plays an essential role in regional climate and is a crucial driver of the low-frequency variability in Northern Europe.

In this talk, I will first discuss the characteristic ocean-atmosphere interaction preceding an AMV maximum event. In the following, I will disentangle the seasonal impact of the AMV and show that a significant fraction of the variability in Baltic Sea winter temperatures is related to the AMV. The strong winter response can be linked to the interaction between the North Atlantic Oscillation, the Atlantic Meridional Overturning Circulation (AMOC), and the AMV. In contrast, the AMVs' impact on other seasons remains small.

How to cite: Börgel, F., Meier, H. E. M., Gröger, M., Dutheil, C., Rhein, M., Borchert, L., and Radtke, H.: Atlantic Multidecadal Variability and the Implications for North European climate , EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-9125,, 2023.