Articles | Volume 22, issue 4
https://doi.org/10.5194/os-22-2221-2026
https://doi.org/10.5194/os-22-2221-2026
Research article
 | 
23 Jul 2026
Research article |  | 23 Jul 2026

The answer is blowing in the wind: seasonal hydrography and mixing of the inner sea of Tierra del Fuego, Southern Patagonia

Manuel I. Castillo, Constanza Zuñiga, Carmen Barrios-Guzmán, Natalia Cisternas, José Garcés-Vargas, Mauricio F. Landaeta, Andrea Piñones, Marcela Rojas, Alicia I. Guerrero, and Maritza Sepúlveda

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Cited articles

Aalto, N. J., Campbell, K., Eilertsen, H. C., and Bernstein, H. C.: Drivers of Atmosphere-Ocean CO2 Flux in Northern Norwegian Fjords, Front. Mar. Sci., 8, 692093, https://doi.org/10.3389/fmars.2021.692093, 2021. 
Aguayo, R., León-Muñoz, J., Vargas-Baecheler, J., Montecinos, A., Garreaud, R., Urbina, M., Soto, D., and Iriarte, J. L.: The glass half-empty: climate change drives lower freshwater input in the coastal system of the Chilean Northern Patagonia, Climatic Change, 155, 417–435, https://doi.org/10.1007/s10584-019-02495-6, 2019. 
Antezana, T.: Hydrographic features of Magellan and Fuegian inland passages and adjacent subantarctic waters, Sci. Mar., 63, 23–34, https://doi.org/10.3989/scimar.1999.63s123, 1999. 
Aracena, C., Lange, C. B., Luis Iriarte, J., Rebolledo, L., and Pantoja, S.: Latitudinal patterns of export production recorded in surface sediments of the Chilean Patagonian fjords (41–55° S) as a response to water column productivity, Cont. Shelf Res., 31, 340–355, https://doi.org/10.1016/J.CSR.2010.08.008, 2011. 
Aravena-Yáñez, V., Garcés-Vargas, J., and Benavides-Martínez, I. F.: Freshwater plume's impact on the thermohaline structure of the water column in the Central Zone of the Strait of Magellan, Regional Studies in Marine Science, 83, https://doi.org/10.1016/j.rsma.2025.104087, 2025. 
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Short summary
The study use Conductivity, Temperature and Depth (CTD) measurement (including seals-borne CTD) to describe the seasonality of the stratification and mixing of one of the southernmost Fjords of Patagonia: The Almirantazgo Fjord. The region, typically tidal was indicated as the most important forcing for mixing the inner-sea of Tierra del Fuego, here the study shows that the persistent an episodic strong along-fjord winds could perturb the pynoclyne and rivals to the estuarine circulation.
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