Sensitivity of Southern Ocean overturning to wind stress changes: Role of surface restoring time scales
The influence of different surface restoring time scales on the response of the Southern Ocean overturning circulation to wind stress changes is investigated using an idealised channel model. Regardless of the restoring time scales chosen, the eddy-induced meridional overturning circulation (MOC) is...
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Format: | Article in Journal/Newspaper |
Language: | English |
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Elsevier
2016
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Online Access: | https://doi.org/10.1016/j.ocemod.2014.09.004 https://ora.ox.ac.uk/objects/uuid:fe7c5e9c-dd37-42e0-ab28-d7c0b7ae8e3e |
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ftuloxford:oai:ora.ox.ac.uk:uuid:fe7c5e9c-dd37-42e0-ab28-d7c0b7ae8e3e 2023-05-15T18:24:50+02:00 Sensitivity of Southern Ocean overturning to wind stress changes: Role of surface restoring time scales Zhai, X Munday, D 2016-07-29 https://doi.org/10.1016/j.ocemod.2014.09.004 https://ora.ox.ac.uk/objects/uuid:fe7c5e9c-dd37-42e0-ab28-d7c0b7ae8e3e eng eng Elsevier doi:10.1016/j.ocemod.2014.09.004 https://ora.ox.ac.uk/objects/uuid:fe7c5e9c-dd37-42e0-ab28-d7c0b7ae8e3e https://doi.org/10.1016/j.ocemod.2014.09.004 info:eu-repo/semantics/embargoedAccess Journal article 2016 ftuloxford https://doi.org/10.1016/j.ocemod.2014.09.004 2022-06-28T20:29:03Z The influence of different surface restoring time scales on the response of the Southern Ocean overturning circulation to wind stress changes is investigated using an idealised channel model. Regardless of the restoring time scales chosen, the eddy-induced meridional overturning circulation (MOC) is found to compensate for changes of the direct wind-driven Eulerian-mean MOC, rendering the residual MOC less sensitive to wind stress changes. However, the extent of this compensation depends strongly on the restoring time scale: residual MOC sensitivity increases with decreasing restoring time scale. Strong surface restoring is shown to limit the ability of the eddy-induced MOC to change in response to wind stress changes and as such suppresses the eddy compensation effect. These model results are consistent with qualitative arguments derived from residual-mean theory and may have important implications for interpreting past and future observations. Article in Journal/Newspaper Southern Ocean ORA - Oxford University Research Archive Southern Ocean Ocean Modelling 84 12 25 |
institution |
Open Polar |
collection |
ORA - Oxford University Research Archive |
op_collection_id |
ftuloxford |
language |
English |
description |
The influence of different surface restoring time scales on the response of the Southern Ocean overturning circulation to wind stress changes is investigated using an idealised channel model. Regardless of the restoring time scales chosen, the eddy-induced meridional overturning circulation (MOC) is found to compensate for changes of the direct wind-driven Eulerian-mean MOC, rendering the residual MOC less sensitive to wind stress changes. However, the extent of this compensation depends strongly on the restoring time scale: residual MOC sensitivity increases with decreasing restoring time scale. Strong surface restoring is shown to limit the ability of the eddy-induced MOC to change in response to wind stress changes and as such suppresses the eddy compensation effect. These model results are consistent with qualitative arguments derived from residual-mean theory and may have important implications for interpreting past and future observations. |
format |
Article in Journal/Newspaper |
author |
Zhai, X Munday, D |
spellingShingle |
Zhai, X Munday, D Sensitivity of Southern Ocean overturning to wind stress changes: Role of surface restoring time scales |
author_facet |
Zhai, X Munday, D |
author_sort |
Zhai, X |
title |
Sensitivity of Southern Ocean overturning to wind stress changes: Role of surface restoring time scales |
title_short |
Sensitivity of Southern Ocean overturning to wind stress changes: Role of surface restoring time scales |
title_full |
Sensitivity of Southern Ocean overturning to wind stress changes: Role of surface restoring time scales |
title_fullStr |
Sensitivity of Southern Ocean overturning to wind stress changes: Role of surface restoring time scales |
title_full_unstemmed |
Sensitivity of Southern Ocean overturning to wind stress changes: Role of surface restoring time scales |
title_sort |
sensitivity of southern ocean overturning to wind stress changes: role of surface restoring time scales |
publisher |
Elsevier |
publishDate |
2016 |
url |
https://doi.org/10.1016/j.ocemod.2014.09.004 https://ora.ox.ac.uk/objects/uuid:fe7c5e9c-dd37-42e0-ab28-d7c0b7ae8e3e |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
doi:10.1016/j.ocemod.2014.09.004 https://ora.ox.ac.uk/objects/uuid:fe7c5e9c-dd37-42e0-ab28-d7c0b7ae8e3e https://doi.org/10.1016/j.ocemod.2014.09.004 |
op_rights |
info:eu-repo/semantics/embargoedAccess |
op_doi |
https://doi.org/10.1016/j.ocemod.2014.09.004 |
container_title |
Ocean Modelling |
container_volume |
84 |
container_start_page |
12 |
op_container_end_page |
25 |
_version_ |
1766205781966848000 |