The influence of the Antarctic Circumpolar Current on the oceanographic setting of a sub-Antarctic island
The circulation in the Southern Ocean is dominated by the Antarctic Circumpolar Current (ACe), which is the only current that flows completely around the globe. The ACC is a complex system consisting of narrow regions of sharp horizontal density gradients, which extend through the entire water colum...
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ftunivtasmania:oai:eprints.utas.edu.au:13340 2023-05-15T13:36:47+02:00 The influence of the Antarctic Circumpolar Current on the oceanographic setting of a sub-Antarctic island Ansorge, IJ Lutjeharms, JRE 2007 application/pdf https://eprints.utas.edu.au/13340/ https://eprints.utas.edu.au/13340/4/2007_Ansorge_influence_of_Antarctic.pdf en eng https://eprints.utas.edu.au/13340/4/2007_Ansorge_influence_of_Antarctic.pdf Ansorge, IJ and Lutjeharms, JRE 2007 , 'The influence of the Antarctic Circumpolar Current on the oceanographic setting of a sub-Antarctic island' , Papers and Proceedings of the Royal Society of Tasmania, vol. 141, no. 1 , pp. 59-66 , doi:10.26749/rstpp.141.1.59 <http://dx.doi.org/10.26749/rstpp.141.1.59>. cc_utas Royal Society of Tasmania RST Van Diemens Land natural history science ecology taxonomy botany zoology geology geography papers & proceedings Australia UTAS Library Article PeerReviewed 2007 ftunivtasmania https://doi.org/10.26749/rstpp.141.1.59 2020-05-30T07:27:04Z The circulation in the Southern Ocean is dominated by the Antarctic Circumpolar Current (ACe), which is the only current that flows completely around the globe. The ACC is a complex system consisting of narrow regions of sharp horizontal density gradients, which extend through the entire water column as frontal bands separated by broad zones with less intense gradients. Meridional excursions from the otherwise zonaillow in the form of meanders or mesoscale eddies occur in regions of prominent bathymetric features, suggesting a close relationship between the level of mesoscale sea surface variability and bottom topography, The Prince Edward Islands (Marion Island and Prince Edward Island) lying within the Polar Frontal Zone (PFZ) at approximately 38 DE, 47 os form a very special terrestrial habitat and have, for this reason, been designated a declared nature reserve. The ecology of the islands is directly dependent on its ocean environment, With the advent of satellite altimetry it has become apparent that the Prince Edward Islands are located on the northern border of a region of remarkably high mesoscale variability. The source of this variability lies where the current jet associated with the ACC intersects the South-West Indian Ridge. From here newly generated eddies are steered by the bottom topography past the Prince Edward Islands. '[his discovery probably explains the high physical and biological variability found at the islands, and warrants further analysis Article in Journal/Newspaper Antarc* Antarctic Marion Island Prince Edward Islands Southern Ocean Prince Edward Island University of Tasmania: UTas ePrints Antarctic Southern Ocean The Antarctic Indian Papers and Proceedings of the Royal Society of Tasmania 59 66 |
institution |
Open Polar |
collection |
University of Tasmania: UTas ePrints |
op_collection_id |
ftunivtasmania |
language |
English |
topic |
Royal Society of Tasmania RST Van Diemens Land natural history science ecology taxonomy botany zoology geology geography papers & proceedings Australia UTAS Library |
spellingShingle |
Royal Society of Tasmania RST Van Diemens Land natural history science ecology taxonomy botany zoology geology geography papers & proceedings Australia UTAS Library Ansorge, IJ Lutjeharms, JRE The influence of the Antarctic Circumpolar Current on the oceanographic setting of a sub-Antarctic island |
topic_facet |
Royal Society of Tasmania RST Van Diemens Land natural history science ecology taxonomy botany zoology geology geography papers & proceedings Australia UTAS Library |
description |
The circulation in the Southern Ocean is dominated by the Antarctic Circumpolar Current (ACe), which is the only current that flows completely around the globe. The ACC is a complex system consisting of narrow regions of sharp horizontal density gradients, which extend through the entire water column as frontal bands separated by broad zones with less intense gradients. Meridional excursions from the otherwise zonaillow in the form of meanders or mesoscale eddies occur in regions of prominent bathymetric features, suggesting a close relationship between the level of mesoscale sea surface variability and bottom topography, The Prince Edward Islands (Marion Island and Prince Edward Island) lying within the Polar Frontal Zone (PFZ) at approximately 38 DE, 47 os form a very special terrestrial habitat and have, for this reason, been designated a declared nature reserve. The ecology of the islands is directly dependent on its ocean environment, With the advent of satellite altimetry it has become apparent that the Prince Edward Islands are located on the northern border of a region of remarkably high mesoscale variability. The source of this variability lies where the current jet associated with the ACC intersects the South-West Indian Ridge. From here newly generated eddies are steered by the bottom topography past the Prince Edward Islands. '[his discovery probably explains the high physical and biological variability found at the islands, and warrants further analysis |
format |
Article in Journal/Newspaper |
author |
Ansorge, IJ Lutjeharms, JRE |
author_facet |
Ansorge, IJ Lutjeharms, JRE |
author_sort |
Ansorge, IJ |
title |
The influence of the Antarctic Circumpolar Current on the oceanographic setting of a sub-Antarctic island |
title_short |
The influence of the Antarctic Circumpolar Current on the oceanographic setting of a sub-Antarctic island |
title_full |
The influence of the Antarctic Circumpolar Current on the oceanographic setting of a sub-Antarctic island |
title_fullStr |
The influence of the Antarctic Circumpolar Current on the oceanographic setting of a sub-Antarctic island |
title_full_unstemmed |
The influence of the Antarctic Circumpolar Current on the oceanographic setting of a sub-Antarctic island |
title_sort |
influence of the antarctic circumpolar current on the oceanographic setting of a sub-antarctic island |
publishDate |
2007 |
url |
https://eprints.utas.edu.au/13340/ https://eprints.utas.edu.au/13340/4/2007_Ansorge_influence_of_Antarctic.pdf |
geographic |
Antarctic Southern Ocean The Antarctic Indian |
geographic_facet |
Antarctic Southern Ocean The Antarctic Indian |
genre |
Antarc* Antarctic Marion Island Prince Edward Islands Southern Ocean Prince Edward Island |
genre_facet |
Antarc* Antarctic Marion Island Prince Edward Islands Southern Ocean Prince Edward Island |
op_relation |
https://eprints.utas.edu.au/13340/4/2007_Ansorge_influence_of_Antarctic.pdf Ansorge, IJ and Lutjeharms, JRE 2007 , 'The influence of the Antarctic Circumpolar Current on the oceanographic setting of a sub-Antarctic island' , Papers and Proceedings of the Royal Society of Tasmania, vol. 141, no. 1 , pp. 59-66 , doi:10.26749/rstpp.141.1.59 <http://dx.doi.org/10.26749/rstpp.141.1.59>. |
op_rights |
cc_utas |
op_doi |
https://doi.org/10.26749/rstpp.141.1.59 |
container_title |
Papers and Proceedings of the Royal Society of Tasmania |
container_start_page |
59 |
op_container_end_page |
66 |
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1766084108059934720 |