Buoyancy forcing: a key driver of northern North Atlantic sea surface temperature variability across multiple timescales

Risebrobakken, Bjørg; Jensen, Mari F.; Langehaug, Helene R.; Eldevik, Tor; Sandø, Anne Britt; Li, Camille; Born, Andreas; McClymont, Erin Louise; Salzmann, Ulrich; De Schepper, Stijn

doi:https://doi.org/10.5194/cp-19-1101-2023

Articles | Volume 19, issue 5

https://doi.org/10.5194/cp-19-1101-2023

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

https://doi.org/10.5194/cp-19-1101-2023

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

Articles | Volume 19, issue 5

Research article

|

01 Jun 2023

Research article |

| 01 Jun 2023

Buoyancy forcing: a key driver of northern North Atlantic sea surface temperature variability across multiple timescales

Bjørg Risebrobakken, Mari F. Jensen, Helene R. Langehaug, Tor Eldevik, Anne Britt Sandø, Camille Li, Andreas Born, Erin Louise McClymont, Ulrich Salzmann, and Stijn De Schepper

Supplement

https://doi.org/10.5194/cp-19-1101-2023-supplement

Data sets

Hadley Centre Sea Ice and Sea Surface Temperature data set (HadISST) Met Office Hadley Centre https://www.metoffice.gov.uk/hadobs/hadisst/

Short summary

In the observational period, spatially coherent sea surface temperatures characterize the northern North Atlantic at multidecadal timescales. We show that spatially non-coherent temperature patterns are seen both in further projections and a past warm climate period with a CO₂ level comparable to the future low-emission scenario. Buoyancy forcing is shown to be important for northern North Atlantic temperature patterns.