Articles | Volume 22, issue 5
https://doi.org/10.5194/os-22-2993-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-22-2993-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
02 Oct 2026
Research article |
| 02 Oct 2026
| 02 Oct 2026
Impact of wind variations on surface variability over the Patagonian Continental Shelves
M. Milagro Urricariet
CORRESPONDING AUTHOR
Centro de Investigaciones del Mar y la Atmósfera (CIMA/CONICET-UBA), Ciudad Autónoma de Buenos Aires, Argentina
Instituto Franco-Argentino sobre Estudios del Clima y sus Impactos (IFAECI/CNRS-IRD-CONICET-UBA), Ciudad Autónoma de Buenos Aires, Argentina
Departamento de Ciencias de la Atmósfera y los Océanos, FCEN, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
Laura Ruiz-Etcheverry
Centro de Investigaciones del Mar y la Atmósfera (CIMA/CONICET-UBA), Ciudad Autónoma de Buenos Aires, Argentina
Instituto Franco-Argentino sobre Estudios del Clima y sus Impactos (IFAECI/CNRS-IRD-CONICET-UBA), Ciudad Autónoma de Buenos Aires, Argentina
Departamento de Ciencias de la Atmósfera y los Océanos, FCEN, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
Alberto R. Piola
Instituto Franco-Argentino sobre Estudios del Clima y sus Impactos (IFAECI/CNRS-IRD-CONICET-UBA), Ciudad Autónoma de Buenos Aires, Argentina
Departamento de Ciencias de la Atmósfera y los Océanos, FCEN, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
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M. Celeste López-Abbate, John E. Garzón-Cardona, Ricardo Silva, Juan-Carlos Molinero, Laura A. Ruiz-Etcheverry, Ana M. Martínez, Azul S. Gilabert, and Rubén J. Lara
Biogeosciences, 22, 2309–2325, https://doi.org/10.5194/bg-22-2309-2025, https://doi.org/10.5194/bg-22-2309-2025, 2025
Short summary
Short summary
This study explores how microbial dynamics influence the dissolved organic matter (DOM) pool in the Patagonian Shelf. Despite high phytoplankton biomass, selective grazing on fast-growing bacteria led to DOM accumulation, likely due to reduced DOM-consuming bacteria and added egestion compounds. Experiments showed that bacteria not only acted as a carbon sink through mineralization but also transferred assimilated carbon dioxide (CO2) to higher trophic levels.
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Short summary
Wind variability drives coherent variability in surface temperature, salinity, and sea level across the Patagonian shelves of South America. Our findings suggest that southerly winds enhance Pacific coastal upwelling, export fresh waters offshore, weaken the Cape Horn Current, and strengthen northward transport of cold, salty subantarctic waters over the Atlantic shelf, while northerly winds reverse these patterns, revealing wind-driven modulation of shelf circulation and interocean exchanges.
Wind variability drives coherent variability in surface temperature, salinity, and sea level...
