Articles | Volume 20, issue 3
https://doi.org/10.5194/os-20-779-2024
https://doi.org/10.5194/os-20-779-2024
Review article
 | 
14 Jun 2024
Review article |  | 14 Jun 2024

New insights into the eastern subpolar North Atlantic meridional overturning circulation from OVIDE

Herlé Mercier, Damien Desbruyères, Pascale Lherminier, Antón Velo, Lidia Carracedo, Marcos Fontela, and Fiz F. Pérez

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Short summary
We study the Atlantic Meridional Overturning Circulation (AMOC) measured between Greenland and Portugal between 1993–2021. We identify changes in AMOC limb volume and velocity as two major drivers of AMOC variability at subpolar latitudes. Volume variations dominate on the seasonal timescale, while velocity variations are more important on the decadal timescale. This decomposition proves useful for understanding the origin of the differences between AMOC time series from different analyses.