Seasonal variability of the subpolar gyres in the Southern Ocean: a numerical investigation based on transfer operators
The detection of regions in the ocean that are coherent over an extended period of time is a fundamental problem in many oceanic applications. For instance such regions are important for studying the transport of marine species and for the distribution of nutrients. In this study we demonstrate the...
Published in: | Nonlinear Processes in Geophysics |
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00029487 2023-05-15T18:25:19+02:00 Seasonal variability of the subpolar gyres in the Southern Ocean: a numerical investigation based on transfer operators Dellnitz, M. Froyland, G. Horenkamp, C. Padberg-Gehle, K. Sen Gupta, A. 2009-12 electronic https://doi.org/10.5194/npg-16-655-2009 https://noa.gwlb.de/receive/cop_mods_00029487 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029442/npg-16-655-2009.pdf https://npg.copernicus.org/articles/16/655/2009/npg-16-655-2009.pdf eng eng Copernicus Publications Nonlinear Processes in Geophysics -- http://www.bibliothek.uni-regensburg.de/ezeit/?2078085 -- http://www.nonlin-processes-geophys.net/ -- http://www.copernicus.org/EGU/npg/npg.htm -- 1607-7946 https://doi.org/10.5194/npg-16-655-2009 https://noa.gwlb.de/receive/cop_mods_00029487 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029442/npg-16-655-2009.pdf https://npg.copernicus.org/articles/16/655/2009/npg-16-655-2009.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2009 ftnonlinearchiv https://doi.org/10.5194/npg-16-655-2009 2022-02-08T22:47:43Z The detection of regions in the ocean that are coherent over an extended period of time is a fundamental problem in many oceanic applications. For instance such regions are important for studying the transport of marine species and for the distribution of nutrients. In this study we demonstrate the efficacy of transfer operators in detecting and analysing such structures. We focus first on the detection of the Weddell and Ross Gyre for the four seasons spanning December 2003–November 2004 within the 3-D oceanic domain south of 30° S, and show distinct seasonal differences in both the three-dimensional structure and the persistence of the gyres. Further, we demonstrate a new technique based on the discretised transfer operators to calculate the mean residence time of water within parts of the gyres and determine pathways of water leaving and entering the gyres. Article in Journal/Newspaper Southern Ocean Niedersächsisches Online-Archiv NOA Southern Ocean Weddell Nonlinear Processes in Geophysics 16 6 655 663 |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Dellnitz, M. Froyland, G. Horenkamp, C. Padberg-Gehle, K. Sen Gupta, A. Seasonal variability of the subpolar gyres in the Southern Ocean: a numerical investigation based on transfer operators |
topic_facet |
article Verlagsveröffentlichung |
description |
The detection of regions in the ocean that are coherent over an extended period of time is a fundamental problem in many oceanic applications. For instance such regions are important for studying the transport of marine species and for the distribution of nutrients. In this study we demonstrate the efficacy of transfer operators in detecting and analysing such structures. We focus first on the detection of the Weddell and Ross Gyre for the four seasons spanning December 2003–November 2004 within the 3-D oceanic domain south of 30° S, and show distinct seasonal differences in both the three-dimensional structure and the persistence of the gyres. Further, we demonstrate a new technique based on the discretised transfer operators to calculate the mean residence time of water within parts of the gyres and determine pathways of water leaving and entering the gyres. |
format |
Article in Journal/Newspaper |
author |
Dellnitz, M. Froyland, G. Horenkamp, C. Padberg-Gehle, K. Sen Gupta, A. |
author_facet |
Dellnitz, M. Froyland, G. Horenkamp, C. Padberg-Gehle, K. Sen Gupta, A. |
author_sort |
Dellnitz, M. |
title |
Seasonal variability of the subpolar gyres in the Southern Ocean: a numerical investigation based on transfer operators |
title_short |
Seasonal variability of the subpolar gyres in the Southern Ocean: a numerical investigation based on transfer operators |
title_full |
Seasonal variability of the subpolar gyres in the Southern Ocean: a numerical investigation based on transfer operators |
title_fullStr |
Seasonal variability of the subpolar gyres in the Southern Ocean: a numerical investigation based on transfer operators |
title_full_unstemmed |
Seasonal variability of the subpolar gyres in the Southern Ocean: a numerical investigation based on transfer operators |
title_sort |
seasonal variability of the subpolar gyres in the southern ocean: a numerical investigation based on transfer operators |
publisher |
Copernicus Publications |
publishDate |
2009 |
url |
https://doi.org/10.5194/npg-16-655-2009 https://noa.gwlb.de/receive/cop_mods_00029487 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029442/npg-16-655-2009.pdf https://npg.copernicus.org/articles/16/655/2009/npg-16-655-2009.pdf |
geographic |
Southern Ocean Weddell |
geographic_facet |
Southern Ocean Weddell |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
Nonlinear Processes in Geophysics -- http://www.bibliothek.uni-regensburg.de/ezeit/?2078085 -- http://www.nonlin-processes-geophys.net/ -- http://www.copernicus.org/EGU/npg/npg.htm -- 1607-7946 https://doi.org/10.5194/npg-16-655-2009 https://noa.gwlb.de/receive/cop_mods_00029487 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029442/npg-16-655-2009.pdf https://npg.copernicus.org/articles/16/655/2009/npg-16-655-2009.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/npg-16-655-2009 |
container_title |
Nonlinear Processes in Geophysics |
container_volume |
16 |
container_issue |
6 |
container_start_page |
655 |
op_container_end_page |
663 |
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1766206686171758592 |