Configuration of a Southern Ocean Storm Track
Diagnostics of ocean variability that reflect and influence local transport properties of heat and chemical species vary by an order of magnitude along the Southern Ocean’s Antarctic Circumpolar Current (ACC). Topographic “hotspots” are important regions of localized transport anomalies. This study...
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Language: | English |
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American Meteorological Society
2014
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Online Access: | https://authors.library.caltech.edu/53211/ https://authors.library.caltech.edu/53211/1/jpo-d-14-0062.1.pdf https://resolver.caltech.edu/CaltechAUTHORS:20150106-125700649 |
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ftcaltechauth:oai:authors.library.caltech.edu:53211 2023-05-15T13:57:16+02:00 Configuration of a Southern Ocean Storm Track Bischoff, Tobias Thompson, Andrew F. 2014-12 application/pdf https://authors.library.caltech.edu/53211/ https://authors.library.caltech.edu/53211/1/jpo-d-14-0062.1.pdf https://resolver.caltech.edu/CaltechAUTHORS:20150106-125700649 en eng American Meteorological Society https://authors.library.caltech.edu/53211/1/jpo-d-14-0062.1.pdf Bischoff, Tobias and Thompson, Andrew F. (2014) Configuration of a Southern Ocean Storm Track. Journal of Physical Oceanography, 44 (12). pp. 3072-3078. ISSN 0022-3670. doi:10.1175/JPO-D-14-0062.1. https://resolver.caltech.edu/CaltechAUTHORS:20150106-125700649 <https://resolver.caltech.edu/CaltechAUTHORS:20150106-125700649> other Article PeerReviewed 2014 ftcaltechauth https://doi.org/10.1175/JPO-D-14-0062.1 2021-11-11T19:01:51Z Diagnostics of ocean variability that reflect and influence local transport properties of heat and chemical species vary by an order of magnitude along the Southern Ocean’s Antarctic Circumpolar Current (ACC). Topographic “hotspots” are important regions of localized transport anomalies. This study uses a primitive equation channel model to investigate the structure of eddy kinetic energy (EKE), one measure of variability, in an oceanic regime. A storm-track approach emphasizes the importance of stationary eddies, which result from flow interactions with topography, on setting EKE distributions. The influence of these interactions extends far downstream of the topography and impacts EKE patterns through localized convergence and divergence of heat. Unlike for zonal averages, local contributions to the stationary fluxes from terms that integrate to zero in a zonal average are important. The simulations show a strong sensitivity of the zonal structure as well as the distribution and amplitude of stationary eddy fluxes to the surface wind forcing. By focusing on local, time-averaged stationary eddy fluxes, insight into the dynamical structure of the ACC can be gained that is concealed in the averaging procedure associated with traditional zonal or along-stream analyses. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Caltech Authors (California Institute of Technology) Antarctic Southern Ocean Journal of Physical Oceanography 44 12 3072 3078 |
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Caltech Authors (California Institute of Technology) |
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language |
English |
description |
Diagnostics of ocean variability that reflect and influence local transport properties of heat and chemical species vary by an order of magnitude along the Southern Ocean’s Antarctic Circumpolar Current (ACC). Topographic “hotspots” are important regions of localized transport anomalies. This study uses a primitive equation channel model to investigate the structure of eddy kinetic energy (EKE), one measure of variability, in an oceanic regime. A storm-track approach emphasizes the importance of stationary eddies, which result from flow interactions with topography, on setting EKE distributions. The influence of these interactions extends far downstream of the topography and impacts EKE patterns through localized convergence and divergence of heat. Unlike for zonal averages, local contributions to the stationary fluxes from terms that integrate to zero in a zonal average are important. The simulations show a strong sensitivity of the zonal structure as well as the distribution and amplitude of stationary eddy fluxes to the surface wind forcing. By focusing on local, time-averaged stationary eddy fluxes, insight into the dynamical structure of the ACC can be gained that is concealed in the averaging procedure associated with traditional zonal or along-stream analyses. |
format |
Article in Journal/Newspaper |
author |
Bischoff, Tobias Thompson, Andrew F. |
spellingShingle |
Bischoff, Tobias Thompson, Andrew F. Configuration of a Southern Ocean Storm Track |
author_facet |
Bischoff, Tobias Thompson, Andrew F. |
author_sort |
Bischoff, Tobias |
title |
Configuration of a Southern Ocean Storm Track |
title_short |
Configuration of a Southern Ocean Storm Track |
title_full |
Configuration of a Southern Ocean Storm Track |
title_fullStr |
Configuration of a Southern Ocean Storm Track |
title_full_unstemmed |
Configuration of a Southern Ocean Storm Track |
title_sort |
configuration of a southern ocean storm track |
publisher |
American Meteorological Society |
publishDate |
2014 |
url |
https://authors.library.caltech.edu/53211/ https://authors.library.caltech.edu/53211/1/jpo-d-14-0062.1.pdf https://resolver.caltech.edu/CaltechAUTHORS:20150106-125700649 |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
https://authors.library.caltech.edu/53211/1/jpo-d-14-0062.1.pdf Bischoff, Tobias and Thompson, Andrew F. (2014) Configuration of a Southern Ocean Storm Track. Journal of Physical Oceanography, 44 (12). pp. 3072-3078. ISSN 0022-3670. doi:10.1175/JPO-D-14-0062.1. https://resolver.caltech.edu/CaltechAUTHORS:20150106-125700649 <https://resolver.caltech.edu/CaltechAUTHORS:20150106-125700649> |
op_rights |
other |
op_doi |
https://doi.org/10.1175/JPO-D-14-0062.1 |
container_title |
Journal of Physical Oceanography |
container_volume |
44 |
container_issue |
12 |
container_start_page |
3072 |
op_container_end_page |
3078 |
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1766264859224178688 |