The Influence of Large-Scale Ridge Topography on Barotropic Flows in the Southern Ocean

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• Ryan Patmore (BAS)
• Monday 20 May 2019, 11:00-12:00
• British Antarctic Survey, Innovation Centre, Seminar Room 2.

If you have a question about this talk, please contact Dr Ryan Patmore.

Variations in seabed topography influence the path and strength of currents in the Southern Ocean. The Antarctic Circumpolar Current (ACC) spans the entire longitudinal range of the Southern Ocean and is significantly steered by ridges along the seabed with spatial scales akin to terrestrial mountain ranges. The presence of these submarine ridges is also conducive to the formation of subpolar gyres, which form in their lee. This talk provides an introduction into the influence of topography in a barotropic setting. Results from idealised model simulations give details on the role of topography in the formation of currents in the Southern Ocean. Additionally, new insight is given into how the shape of a ridge can impact the transport of both the ACC and Southern Ocean gyres.

This talk is part of the British Antarctic Survey - Polar Oceans seminar series series.

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