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

Herrford, Josefine; Brandt, Peter; Kanzow, Torsten; Hummels, Rebecca; Araujo, Moacyr; Durgadoo, Jonathan V.

doi:https://doi.org/10.5194/os-17-265-2021

Articles | Volume 17, issue 1

https://doi.org/10.5194/os-17-265-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/os-17-265-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 1

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, Peter Brandt, Torsten Kanzow, Rebecca Hummels, Moacyr Araujo, and Jonathan V. Durgadoo

Data sets

Estimating seasonal AMOC variability at 11°S using Bottom Pressure Recorders (2013-2018) Josefine Herrford, Peter Brandt, and Gerd Krahmann https://doi.org/10.1594/PANGAEA.907589

Agulhas leakage predominantly responds to the Southern Hemisphere westerlies J. V. Durgadoo, B. R. Loveday, C. J. C. Reason, P. Penven, and A. Biastoch https://doi.org/10.1175/JPO-D-13-047.1

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.