Mapping the Antarctic Polar Front: weekly realizations from 2002 to 2014
We map the weekly position of the Antarctic Polar Front (PF) in the Southern Ocean over a 12-year period (2002–2014) using satellite sea surface temperature (SST) estimated from cloud-penetrating microwave radiometers. Our study advances previous efforts to map the PF using hydrographic and satellit...
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Copernicus Publications
2016
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00013435 2023-05-15T13:34:48+02:00 Mapping the Antarctic Polar Front: weekly realizations from 2002 to 2014 Freeman, Natalie M. Lovenduski, Nicole S. 2016-05 electronic https://doi.org/10.5194/essd-8-191-2016 https://noa.gwlb.de/receive/cop_mods_00013435 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00013391/essd-8-191-2016.pdf https://essd.copernicus.org/articles/8/191/2016/essd-8-191-2016.pdf eng eng Copernicus Publications Earth System Science Data -- http://www.earth-syst-sci-data.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2475469 -- 1866-3516 https://doi.org/10.5194/essd-8-191-2016 https://noa.gwlb.de/receive/cop_mods_00013435 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00013391/essd-8-191-2016.pdf https://essd.copernicus.org/articles/8/191/2016/essd-8-191-2016.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2016 ftnonlinearchiv https://doi.org/10.5194/essd-8-191-2016 2022-02-08T22:55:36Z We map the weekly position of the Antarctic Polar Front (PF) in the Southern Ocean over a 12-year period (2002–2014) using satellite sea surface temperature (SST) estimated from cloud-penetrating microwave radiometers. Our study advances previous efforts to map the PF using hydrographic and satellite data and provides a unique realization of the PF at weekly resolution across all longitudes (doi:10.1594/PANGAEA.855640). The mean path of the PF is asymmetric; its latitudinal position spans from 44 to 64° S along its circumpolar path. SST at the PF ranges from 0.6 to 6.9 °C, reflecting the large spread in latitudinal position. The average intensity of the front is 1.7 °C per 100 km, with intensity ranging from 1.4 to 2.3 °C per 100 km. Front intensity is significantly correlated with the depth of bottom topography, suggesting that the front intensifies over shallow bathymetry. Realizations of the PF are consistent with the corresponding surface expressions of the PF estimated using expendable bathythermograph data in the Drake Passage and Australian and African sectors. The climatological mean position of the PF is similar, though not identical, to previously published estimates. As the PF is a key indicator of physical circulation, surface nutrient concentration, and biogeography in the Southern Ocean, future studies of physical and biogeochemical oceanography in this region will benefit from the provided data set. Article in Journal/Newspaper Antarc* Antarctic Drake Passage Southern Ocean Niedersächsisches Online-Archiv NOA Antarctic Drake Passage Southern Ocean The Antarctic Earth System Science Data 8 1 191 198 |
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ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Freeman, Natalie M. Lovenduski, Nicole S. Mapping the Antarctic Polar Front: weekly realizations from 2002 to 2014 |
topic_facet |
article Verlagsveröffentlichung |
description |
We map the weekly position of the Antarctic Polar Front (PF) in the Southern Ocean over a 12-year period (2002–2014) using satellite sea surface temperature (SST) estimated from cloud-penetrating microwave radiometers. Our study advances previous efforts to map the PF using hydrographic and satellite data and provides a unique realization of the PF at weekly resolution across all longitudes (doi:10.1594/PANGAEA.855640). The mean path of the PF is asymmetric; its latitudinal position spans from 44 to 64° S along its circumpolar path. SST at the PF ranges from 0.6 to 6.9 °C, reflecting the large spread in latitudinal position. The average intensity of the front is 1.7 °C per 100 km, with intensity ranging from 1.4 to 2.3 °C per 100 km. Front intensity is significantly correlated with the depth of bottom topography, suggesting that the front intensifies over shallow bathymetry. Realizations of the PF are consistent with the corresponding surface expressions of the PF estimated using expendable bathythermograph data in the Drake Passage and Australian and African sectors. The climatological mean position of the PF is similar, though not identical, to previously published estimates. As the PF is a key indicator of physical circulation, surface nutrient concentration, and biogeography in the Southern Ocean, future studies of physical and biogeochemical oceanography in this region will benefit from the provided data set. |
format |
Article in Journal/Newspaper |
author |
Freeman, Natalie M. Lovenduski, Nicole S. |
author_facet |
Freeman, Natalie M. Lovenduski, Nicole S. |
author_sort |
Freeman, Natalie M. |
title |
Mapping the Antarctic Polar Front: weekly realizations from 2002 to 2014 |
title_short |
Mapping the Antarctic Polar Front: weekly realizations from 2002 to 2014 |
title_full |
Mapping the Antarctic Polar Front: weekly realizations from 2002 to 2014 |
title_fullStr |
Mapping the Antarctic Polar Front: weekly realizations from 2002 to 2014 |
title_full_unstemmed |
Mapping the Antarctic Polar Front: weekly realizations from 2002 to 2014 |
title_sort |
mapping the antarctic polar front: weekly realizations from 2002 to 2014 |
publisher |
Copernicus Publications |
publishDate |
2016 |
url |
https://doi.org/10.5194/essd-8-191-2016 https://noa.gwlb.de/receive/cop_mods_00013435 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00013391/essd-8-191-2016.pdf https://essd.copernicus.org/articles/8/191/2016/essd-8-191-2016.pdf |
geographic |
Antarctic Drake Passage Southern Ocean The Antarctic |
geographic_facet |
Antarctic Drake Passage Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Drake Passage Southern Ocean |
genre_facet |
Antarc* Antarctic Drake Passage Southern Ocean |
op_relation |
Earth System Science Data -- http://www.earth-syst-sci-data.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2475469 -- 1866-3516 https://doi.org/10.5194/essd-8-191-2016 https://noa.gwlb.de/receive/cop_mods_00013435 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00013391/essd-8-191-2016.pdf https://essd.copernicus.org/articles/8/191/2016/essd-8-191-2016.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/essd-8-191-2016 |
container_title |
Earth System Science Data |
container_volume |
8 |
container_issue |
1 |
container_start_page |
191 |
op_container_end_page |
198 |
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