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 |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Royal Society of London
2016
|
Subjects: | |
Online Access: | https://doi.org/10.1098/rsta.2013.0050 https://ora.ox.ac.uk/objects/uuid:7b3c39f0-44fe-4317-a28f-275bcd7635c5 |
id |
ftuloxford:oai:ora.ox.ac.uk:uuid:7b3c39f0-44fe-4317-a28f-275bcd7635c5 |
---|---|
record_format |
openpolar |
spelling |
ftuloxford:oai:ora.ox.ac.uk:uuid:7b3c39f0-44fe-4317-a28f-275bcd7635c5 2023-05-15T13:41:28+02:00 Does the sensitivity of Southern Ocean circulation depend upon bathymetric details? Hogg, A Munday, D 2016-07-28 https://doi.org/10.1098/rsta.2013.0050 https://ora.ox.ac.uk/objects/uuid:7b3c39f0-44fe-4317-a28f-275bcd7635c5 eng eng Royal Society of London doi:10.1098/rsta.2013.0050 https://ora.ox.ac.uk/objects/uuid:7b3c39f0-44fe-4317-a28f-275bcd7635c5 https://doi.org/10.1098/rsta.2013.0050 info:eu-repo/semantics/embargoedAccess Journal article 2016 ftuloxford https://doi.org/10.1098/rsta.2013.0050 2022-06-28T20:16:12Z 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 ORA - Oxford University Research Archive Antarctic Southern Ocean Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 372 2019 20130050 |
institution |
Open Polar |
collection |
ORA - Oxford University Research Archive |
op_collection_id |
ftuloxford |
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, A Munday, D |
spellingShingle |
Hogg, A Munday, D Does the sensitivity of Southern Ocean circulation depend upon bathymetric details? |
author_facet |
Hogg, A Munday, D |
author_sort |
Hogg, A |
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 |
Royal Society of London |
publishDate |
2016 |
url |
https://doi.org/10.1098/rsta.2013.0050 https://ora.ox.ac.uk/objects/uuid:7b3c39f0-44fe-4317-a28f-275bcd7635c5 |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
doi:10.1098/rsta.2013.0050 https://ora.ox.ac.uk/objects/uuid:7b3c39f0-44fe-4317-a28f-275bcd7635c5 https://doi.org/10.1098/rsta.2013.0050 |
op_rights |
info:eu-repo/semantics/embargoedAccess |
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 |
_version_ |
1766151081453158400 |