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标题：Chaotic and regular trajectories in the Antarctic Circumpolar Current
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作者：Jonas Nycander ; Kristofer Döös ; Andrew C. Coward 等
期刊名称：Tellus A: Dynamic Meteorology and Oceanography
电子版ISSN：1600-0870
出版年度：2002
卷号：54
期号：1
页码：99-106
DOI：10.3402/tellusa.v54i1.12118
摘要：Methods from chaos theory are applied to the analysis of the circulation in the Southern Ocean,using velocity fields produced by a realistic global ocean model. We plot the intersections ofindividual trajectories encircling Antarctica with a vertical plane in the Drake passage. Thisso-called Poincare´ section shows a drastic difference between regular trajectories in a coreregion of the Antarctic Circumpolar Current (ACC), and chaotic, mixing trajectories in thesurrounding region. It also shows that there is a region with overturning circulation of approximately3.5 Sv in the ACC, with downwelling on the northern side and upwelling on the southernside, which may be related to the Deacon cell.