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Seasonal Variability of the Subpolar Gyres in the Southern Ocean: a Numerical Investigation Based on Transfer Operators : Volume 16, Issue 6 (08/12/2009)

By Dellnitz, M.

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Book Id: WPLBN0003986837
Format Type: PDF Article :
File Size: Pages 9
Reproduction Date: 2015

Title: Seasonal Variability of the Subpolar Gyres in the Southern Ocean: a Numerical Investigation Based on Transfer Operators : Volume 16, Issue 6 (08/12/2009)  
Author: Dellnitz, M.
Volume: Vol. 16, Issue 6
Language: English
Subject: Science, Nonlinear, Processes
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2009
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Horenkamp, C., Froyland, G., Padberg-Gehle, K., Dellnitz, M., & Gupta, A. S. (2009). Seasonal Variability of the Subpolar Gyres in the Southern Ocean: a Numerical Investigation Based on Transfer Operators : Volume 16, Issue 6 (08/12/2009). Retrieved from http://hawaiilibrary.net/


Description
Description: Department of Mathematics, University of Paderborn, 33095 Paderborn, Germany. 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.

Summary
Seasonal variability of the subpolar gyres in the Southern Ocean: a numerical investigation based on transfer operators

Excerpt
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