期刊
出版社
ROYAL SOC
DOI: 10.1098/rspa.2014.0639
关键词
coherent Lagrangian vortices; transport; index theory; line fields; closed orbit detection; ocean surface flows
Coherent boundaries of Lagrangian vortices in fluid flows have recently been identified as closed orbits of line fields associated with the Cauchy-Green strain tensor. Here, we develop a fully automated procedure for the detection of such closed orbits in large-scale velocity datasets. We illustrate the power of our method on ocean surface velocities derived from satellite altimetry.
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