Articles | Volume 5, issue 1
https://doi.org/10.5194/wcd-5-357-2024
https://doi.org/10.5194/wcd-5-357-2024
Research article
 | 
04 Mar 2024
Research article |  | 04 Mar 2024

Sustained intensification of the Aleutian Low induces weak tropical Pacific sea surface warming

William J. Dow, Christine M. McKenna, Manoj M. Joshi, Adam T. Blaker, Richard Rigby, and Amanda C. Maycock

Data sets

Global analyses of sea surface temperature, sea ice, and night marine air temperature since the late nineteenth century (https://www.metoffice.gov.uk/hadobs/hadisst/data/download.html) N. A. Rayner et al. https://doi.org/10.1029/2002JD002670

Model code and software

NOC-MSM/FORTE2.0: FORTE 2.0: a fast, parallel and flexible coupled climate model Adam T. Blaker et al. https://doi.org/10.5281/zenodo.8142714

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Short summary
Changes to sea surface temperatures in the extratropical North Pacific are driven partly by patterns of local atmospheric circulation, such as the Aleutian Low. We show that an intensification of the Aleutian Low could contribute to small changes in temperatures across the equatorial Pacific via the initiation of two mechanisms. The effect, although significant, is unlikely to explain fully the recently observed multi-year shift of a pattern of climate variability across the wider Pacific.