A transfer operator based numerical investigation of coherent structures in three-dimensional Southern ocean circulation

We report on a numerical investigation of three-dimensional circulation in the Southern Ocean over a domain extending from Antarctica to -36 degrees latitude and from the sea surface to a depth of 500 metres. The high latitude Southern Ocean is a region low in measurements but important for climatic...

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Bibliographic Details
Main Authors: Froyland, Gary, Schwalb, Marcel, Padberg, Kathrin, Dellnitz, Michael
Other Authors: Kolumban, Geza, Endo, Tetsuro
Format: Other Non-Article Part of Journal/Newspaper
Language:English
Published: Research Society of Nonlinear Theory and Its Application 2008
Subjects:
/dk/atira/pure/core/keywords/mathematik
Mathematics
Southern Ocean
Antarc*
Antarctica
Online Access:http://fox.leuphana.de/portal/de/publications/a-transfer-operator-based-numerical-investigation-of-coherent-structures-in-threedimensional-southern-ocean-circulation(affb0440-b06b-4e88-ba74-8ed7d802f754).html
https://pure.leuphana.de/ws/files/8752063/FrPaSchDe_nolta2008k.pdf
http://www.ieice.org/nolta/symposium/archive/2008/nolta08toc.pdf
http://www.ieice.org/proceedings/NOLTA2008/articles/B3L-B1-Froyland-2210.pdf
Description
Summary:We report on a numerical investigation of three-dimensional circulation in the Southern Ocean over a domain extending from Antarctica to -36 degrees latitude and from the sea surface to a depth of 500 metres. The high latitude Southern Ocean is a region low in measurements but important for climatic and biological applications. Our investigation is based upon velocity data simulated by a state-of-the-art 1/4 degree resolution global ocean model. We construct an approximate transfer operator from the velocity data and identify dominant coherent circulation structures from eigenmodes of the transfer operator.

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