FN Archimer Export Format
PT J
TI Physical processes and biological productivity in the upwelling regions of the tropical Atlantic
BT 
AF Brandt, Peter
   Alory, Gaël
   Awo, Founi Mesmin
   Dengler, Marcus
   Djakouré, Sandrine
   Imbol Koungue, Rodrigue Anicet
   Jouanno, Julien
   Körner, Mareike
   Roch, Marisa
   Rouault, Mathieu
AS 1:1,2;2:3;3:4;4:1;5:5;6:1;7:3;8:1;9:1;10:4;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;
C1 GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
   Faculty of Mathematics and Natural Sciences, Kiel University, Kiel, Germany
   LEGOS, CNES/CNRS/IRD/UPS, Toulouse, France
   Nansen-Tutu Centre for Marine Environmental Research, Department of Oceanography, University of Cape Town, Cape Town, South Africa
   LASMES, UFR SSMT, Felix Houphouët-Boigny University, Abidjan, Côte d’Ivoire
C2 IFM GEOMAR, GERMANY
   UNIV KIEL, GERMANY
   LEGOS, FRANCE
   UNIV CAPE TOWN, SOUTH AFRICA
   UNIV FELIX HOUPHOUET BOIGNY, COTE IVOIRE
IN DOAJ
IF 3.2
TC 7
UR https://archimer.ifremer.fr/doc/00882/99408/109430.pdf
   https://archimer.ifremer.fr/doc/00882/99408/109431.pdf
LA English
DT Article
CR PIRATA
AB In this paper, we review observational and modelling results on the upwelling in the tropical Atlantic between 10∘ N and 20∘ S. We focus on the physical processes that drive the seasonal variability of surface cooling and the upward nutrient flux required to explain the seasonality of biological productivity. We separately consider the equatorial upwelling system, the coastal upwelling system of the Gulf of Guinea and the tropical Angolan upwelling system. All three tropical Atlantic upwelling systems have in common a strong seasonal cycle, with peak biological productivity during boreal summer. However, the physical processes driving the upwelling vary between the three systems. For the equatorial regime, we discuss the wind forcing of upwelling velocity and turbulent mixing, as well as the underlying dynamics responsible for thermocline movements and current structure. The coastal upwelling system in the Gulf of Guinea is located along its northern boundary and is driven by both local and remote forcing. Particular emphasis is placed on the Guinea Current, its separation from the coast and the shape of the coastline. For the tropical Angolan upwelling, we show that this system is not driven by local winds but instead results from the combined effect of coastally trapped waves, surface heat and freshwater fluxes, and turbulent mixing. Finally, we review recent changes in the upwelling systems associated with climate variability and global warming and address possible responses of upwelling systems in future scenarios. 
PY 2023
PD MAY
SO Ocean Science
SN 1812-0784
PU Copernicus GmbH
VL 19
IS 3
UT 000986621200001
BP 581
EP 601
DI 10.5194/os-19-581-2023
ID 99408
ER

EF