South Atlantic overturning and heat transport variations in ocean reanalyses and observation-based estimates

Baker, Jonathan Andrew; Renshaw, Richard; Jackson, Laura Claire; Dubois, Clotilde; Iovino, Doroteaciro; Zuo, Hao; Perez, Renellys C.; Dong, Shenfu; Kersalé, Marion; Mayer, Michael; Mayer, Johannes; Speich, Sabrina; Lamont, Tarron

doi:https://doi.org/10.5194/sp-1-osr7-4-2023

Articles | Volume 1-osr7

https://doi.org/10.5194/sp-1-osr7-4-2023

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

Report:

7th edition of the Copernicus Ocean State Report (OSR7)

https://doi.org/10.5194/sp-1-osr7-4-2023

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

Articles | Volume 1-osr7

27 Sep 2023

| OSR7 | Chapter 2.2

| 27 Sep 2023 | OSR7 | Chapter 2.2

South Atlantic overturning and heat transport variations in ocean reanalyses and observation-based estimates

Jonathan Andrew Baker, Richard Renshaw, Laura Claire Jackson, Clotilde Dubois, Doroteaciro Iovino, Hao Zuo, Renellys C. Perez, Shenfu Dong, Marion Kersalé, Michael Mayer, Johannes Mayer, Sabrina Speich, and Tarron Lamont

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May 2023	10	0	10
Jun 2023	15	0	15
Jul 2023	15	0	15
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Oct 2023	102	40	2	144
Nov 2023	44	16	0	60
Dec 2023	26	18	1	45
Jan 2024	36	14	2	52
Feb 2024	45	22	2	69
Mar 2024	41	23	0	64
Apr 2024	44	16	2	62
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Jun 2024	45	15	1	61
Jul 2024	49	14	6	69
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Short summary

We use ocean reanalyses, in which ocean models are combined with observations, to infer past changes in ocean circulation and heat transport in the South Atlantic. Comparing these estimates with other observation-based estimates, we find differences in their trends, variability, and mean heat transport but closer agreement in their mean overturning strength. Ocean reanalyses can help us understand the cause of these differences, which could improve estimates of ocean transports in this region.

South Atlantic overturning and heat transport variations in ocean reanalyses and observation-based estimates

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