Does the sensitivity of Southern Ocean circulation depend upon bathymetric details?
The response of the major ocean currents to changes in wind stress forcing is investigated with a series of idealized, but eddy-permitting, model simulations. Previously, ostensibly similar models have shown considerable variation in the oceanic response to changing wind stress forcing. Here, it is...
Published in: | Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
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crroyalsociety:10.1098/rsta.2013.0050 2024-06-02T07:58:10+00:00 Does the sensitivity of Southern Ocean circulation depend upon bathymetric details? Hogg, Andrew McC. Munday, David R. 2014 http://dx.doi.org/10.1098/rsta.2013.0050 https://royalsocietypublishing.org/doi/pdf/10.1098/rsta.2013.0050 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsta.2013.0050 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences volume 372, issue 2019, page 20130050 ISSN 1364-503X 1471-2962 journal-article 2014 crroyalsociety https://doi.org/10.1098/rsta.2013.0050 2024-05-07T14:16:52Z The response of the major ocean currents to changes in wind stress forcing is investigated with a series of idealized, but eddy-permitting, model simulations. Previously, ostensibly similar models have shown considerable variation in the oceanic response to changing wind stress forcing. Here, it is shown that a major reason for these differences in model sensitivity is subtle modification of the idealized bathymetry. The key bathymetric parameter is the extent to which the strong eddy field generated in the circumpolar current can interact with the bottom water formation process. The addition of an embayment, which insulates bottom water formation from meridional eddy fluxes, acts to stabilize the deep ocean density and enhances the sensitivity of the circumpolar current. The degree of interaction between Southern Ocean eddies and Antarctic shelf processes may thereby control the sensitivity of the Southern Ocean to change. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean The Royal Society Antarctic Southern Ocean Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 372 2019 20130050 |
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Open Polar |
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The Royal Society |
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crroyalsociety |
language |
English |
description |
The response of the major ocean currents to changes in wind stress forcing is investigated with a series of idealized, but eddy-permitting, model simulations. Previously, ostensibly similar models have shown considerable variation in the oceanic response to changing wind stress forcing. Here, it is shown that a major reason for these differences in model sensitivity is subtle modification of the idealized bathymetry. The key bathymetric parameter is the extent to which the strong eddy field generated in the circumpolar current can interact with the bottom water formation process. The addition of an embayment, which insulates bottom water formation from meridional eddy fluxes, acts to stabilize the deep ocean density and enhances the sensitivity of the circumpolar current. The degree of interaction between Southern Ocean eddies and Antarctic shelf processes may thereby control the sensitivity of the Southern Ocean to change. |
format |
Article in Journal/Newspaper |
author |
Hogg, Andrew McC. Munday, David R. |
spellingShingle |
Hogg, Andrew McC. Munday, David R. Does the sensitivity of Southern Ocean circulation depend upon bathymetric details? |
author_facet |
Hogg, Andrew McC. Munday, David R. |
author_sort |
Hogg, Andrew McC. |
title |
Does the sensitivity of Southern Ocean circulation depend upon bathymetric details? |
title_short |
Does the sensitivity of Southern Ocean circulation depend upon bathymetric details? |
title_full |
Does the sensitivity of Southern Ocean circulation depend upon bathymetric details? |
title_fullStr |
Does the sensitivity of Southern Ocean circulation depend upon bathymetric details? |
title_full_unstemmed |
Does the sensitivity of Southern Ocean circulation depend upon bathymetric details? |
title_sort |
does the sensitivity of southern ocean circulation depend upon bathymetric details? |
publisher |
The Royal Society |
publishDate |
2014 |
url |
http://dx.doi.org/10.1098/rsta.2013.0050 https://royalsocietypublishing.org/doi/pdf/10.1098/rsta.2013.0050 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsta.2013.0050 |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_source |
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences volume 372, issue 2019, page 20130050 ISSN 1364-503X 1471-2962 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rsta.2013.0050 |
container_title |
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
container_volume |
372 |
container_issue |
2019 |
container_start_page |
20130050 |
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1800741443736698880 |