PhD defence of Ole Pinner: Turbulence and its Drivers in the Weddell Sea Bottom Water gravity current

The room is not that easy to find, but a map of NW1 can be found here (https://oracle-web.zfn.uni-bremen.de/web/lageplan?pi_raum_id=20309&pi_raumnummer=U1050&pi_anz=1)

Abstract:

The Weddell Sea is an essential location for the Southern Ocean overturning circulation as large parts of Antarctic Bottom Water (AABW) is formed there.

Dense water forms on the continental shelves and flows as a gravity current in the deep sea. However, about half of the eventual AABW is entrained on the way there on the continental slope by turbulent processes not usually present in numerical models. In the last years, I analyzed measurement data to find that a substantial amount of the turbulence in the upper layer of the gravity current is induced by internal waves. The spatial variability of turbulence is thereby determined by internal tides, while the temporal variability is determined by surface-generated near-inertial waves, even at the abyssal base of the continental slope.