Observational evidence for on-shelf heat transport driven by dense water export in the Weddell Sea

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 contine...

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Bibliographic Details
Published in:Nature Communications
Main Authors: Darelius, Elin, Daae, Kjersti, Dundas, Vår, Fer, Ilker, Hellmer, Hartmut H., Janout, Markus, Nicholls, Keith W., Sallée, Jean-Baptiste, Østerhus, Svein
Format: Text
Language:English
Published: Nature Publishing Group UK 2023
Subjects:
Article
Antarctic
The Antarctic
Weddell
Weddell Sea
Antarc*
Ice Sheet
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9992355/
http://www.ncbi.nlm.nih.gov/pubmed/36882411
https://doi.org/10.1038/s41467-023-36580-3
Description
Summary: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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