Ocean Science
Ocean Science
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Articles | Volume 13, issue 1
Articles | Volume 13, issue 1
https://doi.org/10.5194/os-13-77-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/os-13-77-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 13, issue 1
Research article
 | 
30 Jan 2017
Research article |  | 30 Jan 2017

Seasonal resonance of diurnal coastal trapped waves in the southern Weddell Sea, Antarctica

Stefanie Semper and Elin Darelius

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Short summary
Velocity measurements from moorings at the shelf break in the southern Weddell Sea reveal strong diurnal tidal currents, which are enhanced by ca. 50 % in austral summer compared to winter. A numerical code describing coastal trapped waves (CTWs) is used to explore the effect of changing stratification and circulation on wave properties. It is found that near-resonance between CTWs and diurnal tides during austral summer can explain the observed enhancement of diurnal tidal currents.
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