Weather and Climate Dynamics
Weather and Climate Dynamics
WCD
Articles | Volume 5, issue 3
Articles | Volume 5, issue 3
https://doi.org/10.5194/wcd-5-913-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wcd-5-913-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 5, issue 3
Research article
 | 
19 Jul 2024
Research article |  | 19 Jul 2024

Model spread in multidecadal North Atlantic Oscillation variability connected to stratosphere–troposphere coupling

Rémy Bonnet, Christine M. McKenna, and Amanda C. Maycock

Supplement

https://doi.org/10.5194/wcd-5-913-2024-supplement

Data sets

20th Century Reanalysis (V3) data NOAA/CIRES/DOE https://www.psl.noaa.gov/data/gridded/data.20thC_ReanV3.html

Extended Reconstructed SST V5 data NOAA https://psl.noaa.gov/data/gridded/data.noaa.ersst.v5.html

HadSLP2r Met Office Hadley Centre observations https://www.metoffice.gov.uk/hadobs/hadslp2/

HadISST Met Office Hadley Centre observations https://www.metoffice.gov.uk/hadobs/hadisst/

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Short summary
Climate models underestimate multidecadal winter North Atlantic Oscillation (NAO) variability. Understanding the origin of this weak variability is important for making reliable climate projections. We use multi-model climate simulations to explore statistical relationships with drivers that may contribute to NAO variability. We find a relationship between modelled stratosphere–troposphere coupling and multidecadal NAO variability, offering an avenue to improve the simulation of NAO variability.
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