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Updated: Aug 7, 2025

Evolution of Staircase Structures in Diffusive Convection
Published on: September 5, 2018
Observational evidence for on-shelf heat transport driven by dense water export in the Weddell Sea
Elin Darelius1, Kjersti Daae2, Vår Dundas2
1Geophysical Institute, University of Bergen and the Bjerknes Centre for climate Research, Alleg. 70, Bergen, Norway. elin.darelius@uib.no.
Abstract:
The transport of oceanic heat towards the Antarctic continental margin is central to the mass balance of the Antarctic Ice Sheet. Recent modeling efforts challenge our view on where and how the on-shelf heat flux occurs, suggesting that it is largest where dense shelf waters cascade down the continental slope. Here we provide observational evidence supporting this claim. Using records from moored instruments, we link the downslope flow of dense water from the Filchner overflow to upslope and on-shelf flow of warm water.
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