A coupled ocean-atmosphere laboratory model of the Antarctic circumpolar current
A thermally-driven rotating annulus with two immiscible fluid layers is used as a laboratory analogue for ocean-atmosphere coupling in the Southern Ocean region. The laboratory facility can be tuned to produce a separation in scales between the two layers, and flow in each layer qualitatively resemb...
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ftanucanberra:oai:digitalcollections.anu.edu.au:1885/33626 2023-05-15T13:57:36+02:00 A coupled ocean-atmosphere laboratory model of the Antarctic circumpolar current Hogg, Andrew Griffiths, Ross 2015-12-08T22:26:23Z http://hdl.handle.net/1885/33626 unknown Elsevier 1463-5003 http://hdl.handle.net/1885/33626 Ocean Modelling Journal article 2015 ftanucanberra 2015-12-28T23:24:16Z A thermally-driven rotating annulus with two immiscible fluid layers is used as a laboratory analogue for ocean-atmosphere coupling in the Southern Ocean region. The laboratory facility can be tuned to produce a separation in scales between the two layers, and flow in each layer qualitatively resembles observed parameter regimes. The model effectively allows the lower (ocean) layer to be driven by both thermal and momentum forcing, and these two components can be independently varied to investigate the dynamics of the system. The results show that it is plausible to drive a strong circumpolar ocean flow with thermal forcing alone. The addition of momentum forcing increases the circumpolar transport, but only up to a limit, consistent with existing eddy-resolving simulations of the Antarctic Circumpolar Current. Thus it is demonstrated that laboratory models of coupled ocean-atmosphere flows can contribute to the range of tools available to understand climate-scale phenomena. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Australian National University: ANU Digital Collections Antarctic Southern Ocean The Antarctic |
institution |
Open Polar |
collection |
Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
unknown |
description |
A thermally-driven rotating annulus with two immiscible fluid layers is used as a laboratory analogue for ocean-atmosphere coupling in the Southern Ocean region. The laboratory facility can be tuned to produce a separation in scales between the two layers, and flow in each layer qualitatively resembles observed parameter regimes. The model effectively allows the lower (ocean) layer to be driven by both thermal and momentum forcing, and these two components can be independently varied to investigate the dynamics of the system. The results show that it is plausible to drive a strong circumpolar ocean flow with thermal forcing alone. The addition of momentum forcing increases the circumpolar transport, but only up to a limit, consistent with existing eddy-resolving simulations of the Antarctic Circumpolar Current. Thus it is demonstrated that laboratory models of coupled ocean-atmosphere flows can contribute to the range of tools available to understand climate-scale phenomena. |
format |
Article in Journal/Newspaper |
author |
Hogg, Andrew Griffiths, Ross |
spellingShingle |
Hogg, Andrew Griffiths, Ross A coupled ocean-atmosphere laboratory model of the Antarctic circumpolar current |
author_facet |
Hogg, Andrew Griffiths, Ross |
author_sort |
Hogg, Andrew |
title |
A coupled ocean-atmosphere laboratory model of the Antarctic circumpolar current |
title_short |
A coupled ocean-atmosphere laboratory model of the Antarctic circumpolar current |
title_full |
A coupled ocean-atmosphere laboratory model of the Antarctic circumpolar current |
title_fullStr |
A coupled ocean-atmosphere laboratory model of the Antarctic circumpolar current |
title_full_unstemmed |
A coupled ocean-atmosphere laboratory model of the Antarctic circumpolar current |
title_sort |
coupled ocean-atmosphere laboratory model of the antarctic circumpolar current |
publisher |
Elsevier |
publishDate |
2015 |
url |
http://hdl.handle.net/1885/33626 |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_source |
Ocean Modelling |
op_relation |
1463-5003 http://hdl.handle.net/1885/33626 |
_version_ |
1766265306189135872 |