Articles | Volume 19, issue 3
Review article
11 May 2023
Review article |  | 11 May 2023

Physical processes and biological productivity in the upwelling regions of the tropical Atlantic

Peter Brandt, Gaël Alory, Founi Mesmin Awo, Marcus Dengler, Sandrine Djakouré, Rodrigue Anicet Imbol Koungue, Julien Jouanno, Mareike Körner, Marisa Roch, and Mathieu Rouault

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Cited articles

Adamec, D. and Obrien, J. J.: Seasonal upwelling in Gulf of Guinea due to remote forcing, J. Phys. Oceanogr., 8, 1050–1060,<1050:Tsuitg>2.0.Co;2, 1978. 
Alory, G., Da-Allada, C. Y., Djakouré, S., Dadou, I., Jouanno, J., and Loemba, D. P.: Coastal Upwelling Limitation by Onshore Geostrophic Flow in the Gulf of Guinea Around the Niger River Plume, Front. Mar. Sci., 7, 607216,, 2021. 
Amemou, H., Koné, V., Aman, A., and Lett, C.: Assessment of a Lagrangian model using trajectories of oceanographic drifters and fishing devices in the Tropical Atlantic Ocean, Prog. Oceanogr., 188, 102426,, 2020. 
Athie, G. and Marin, F.: Cross-equatorial structure and temporal modulation of intraseasonal variability at the surface of the Tropical Atlantic Ocean, J. Geophys. Res.-Oceans, 113, C08020,, 2008. 
Awo, F. M., Alory, G., Da-Allada, C. Y., Delcroix, T., Jouanno, J., Kestenare, E., and Baloitcha, E.: Sea Surface Salinity Signature of the Tropical Atlantic Interannual Climatic Modes, J. Geophys. Res.-Oceans, 123, 7420–7437,, 2018. 
Short summary
Tropical upwelling systems are among the most productive ecosystems globally. The tropical Atlantic upwelling undergoes a strong seasonal cycle that is forced by the wind. Local wind-driven upwelling and remote effects, particularly via the propagation of equatorial and coastal trapped waves, lead to an upward and downward movement of the nitracline. Turbulent mixing results in upward supply of nutrients. Here, we review the different physical processes responsible for biological productivity.