%0 journal article
%@ 0094-8276
%A Dethloff, K., Rinke, A., Benkel, A., Koeltzow, M., Sokolova, E., Kumar Saha, S., Handorf, D., Dorn, W., Rockel, B., Storch, H.v., Haugen, J.E., Roed, L.P., Roeckner, E., Christensen, J.H., Stendel, M.

%D 2006
%J Geophysical Research Letters
%N 3
%P L03703 
%R doi:10.1029/2005GL025245
%T A dynamical link between the Arctic and the global climate system
%U https://doi.org/10.1029/2005GL025245
3 
%X By means of simulations with a global coupled AOGCM it is shown that changes in the polar energy sink region can exert a strong influence on the mid- and high-latitude climate by modulating the strength of the mid-latitude westerlies and storm tracks. It is found, that a more realistic sea-ice and snow albedo treatment changes the ice-albedo feedback and the radiative exchange between the atmosphere and the ocean-sea-ice system. The planetary wave energy fluxes in the middle troposphere of mid-latitudes between 30 and 50°N are redistributed, which induces perturbations in the zonal and meridional planetary wave trains from the tropics over the mid-latitudes into the Arctic. It is shown, that the improved parameterization of Arctic sea-ice and snow albedo can trigger changes in the Arctic and North Atlantic Oscillation pattern with strong implications for the European climate.