Articles | Volume 17, issue 1
Ocean Sci., 17, 265–284, 2021
Ocean Sci., 17, 265–284, 2021

Research article 10 Feb 2021

Research article | 10 Feb 2021

Seasonal variability of the Atlantic Meridional Overturning Circulation at 11° S inferred from bottom pressure measurements

Josefine Herrford et al.

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Cited articles

Bachèlery, M.-L., Illig, S., and Dadou, I.: Interannual variability in the South-East Atlantic Ocean, focusing on the Benguela Upwelling System: Remote versus local forcing, J. Geophys. Res.-Oceans, 121, 284–310,, 2016. 
Bentamy, A. and Croizé-Fillon, D.: Gridded surface wind fields from Metop/ASCAT measurements, Int. J. Remote Sens., 33, 1729–1754., 2012. 
Biastoch, A., Böning, C. W., and Lutjeharms, J. R. E.: Agulhas leakage dynamics affects decadal variability in Atlantic overturning circulation, Nature, 456, 489–492,, 2008. 
Bingham, R. J. and Hughes, C. W.: The relationship between sea‐level and bottom pressure variability in an eddy permitting ocean model, Geophys. Res. Lett., 35, L03602,, 2008. 
Boebel, O., Schmid, C., and Zenk, W.: Kinematic elements of Antarctic Intermediate Water in the western South Atlantic, Deep-Sea Res. Pt. II, 46, 355–392,, 1999. 
Short summary
The Atlantic Meridional Overturning Circulation (AMOC) is an important component of the climate system. Understanding its structure and variability is a key priority for many scientists. Here, we present the first estimate of AMOC variations for the tropical South Atlantic from the TRACOS array at 11° S. Over the observed period, the AMOC was dominated by seasonal variability. We investigate the respective mechanisms with an ocean model and find that different wind-forced waves play a big role.