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

hdl:10013/epic.f9121a1b-bc1a-4668-b432-eea9d2a28178

publisher:10.1038/s41467-023-36580-3

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

Darelius, Elin, Daae, Kjersti, Dundas, Vår, Fer, Ilker, Hellmer, Hartmut H

, Janout, Markus

, Nicholls, Keith W, Sallée, Jean-Baptiste and Østerhus, Svein ;

Contact

enquiries [ at ] symplectic.co.uk

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.

Item Type

Article

Authors

Darelius, Elin, Daae, Kjersti, Dundas, Vår, Fer, Ilker, Hellmer, Hartmut H

, Janout, Markus

, Nicholls, Keith W, Sallée, Jean-Baptiste and Østerhus, Svein ;

Divisions

AWI Organizations > Climate Sciences > Physical Oceanography of the Polar Seas

Primary Division

Organizations > AWI Organizations > Climate Sciences

Primary Topic

Helmholtz Programs > Helmholtz Research Programs > CHANGING EARTH (2021-2027) > PT2:Ocean and Cryosphere in Climate

Publication Status

Published

Eprint ID

59932

DOI 10.1038/s41467-023-36580-3

Cite as

Darelius, E. , Daae, K. , Dundas, V. , Fer, I. , Hellmer, H. H. , Janout, M. , Nicholls, K. W. , Sallée, J. B. and Østerhus, S. (2023): Observational evidence for on-shelf heat transport driven by dense water export in the Weddell Sea , Nature Communications, 14 (1), p. 1022 . doi: 10.1038/s41467-023-36580-3