Weather and Climate Dynamics
Weather and Climate Dynamics
WCD
Articles | Volume 3, issue 3
Articles | Volume 3, issue 3
https://doi.org/10.5194/wcd-3-951-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wcd-3-951-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 3, issue 3
Research article
 | 
17 Aug 2022
Research article |  | 17 Aug 2022

Improved teleconnection between Arctic sea ice and the North Atlantic Oscillation through stochastic process representation

Kristian Strommen, Stephan Juricke, and Fenwick Cooper

Data sets

PRIMAVERA_UOXF_Stochastic_Experiments Kristian Strommen and Stephan Juricke https://doi.org/10.5281/zenodo.5256102

ERA5 hourly data on single levels from 1959 to present H. Hersbach, B. Bell, P. Berrisford, G. Biavati, A. Horányi, J. Muñoz Sabater, J. Nicolas, C. Peubey, R. Radu, I. Rozum, D. Schepers, A. Simmons, C. Soci, D. Dee, and J.-N. Thépaut https://doi.org/10.24381/cds.adbb2d47

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Short summary
Observational data suggest that the extent of Arctic sea ice influences mid-latitude winter weather. However, climate models generally fail to reproduce this link, making it unclear if models are missing something or if the observed link is just a coincidence. We show that if one explicitly represents the effect of unresolved sea ice variability in a climate model, then it is able to reproduce this link. This implies that the link may be real but that many models simply fail to simulate it.
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