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Free Content The Loop Current and adjacent rings delineated by Lagrangian analysis of the near-surface flow

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Evolution of the Loop Current and the adjacent mesoscale rings was investigated over a 20-day period, starting June 1, 1998. Model sea-surface height and near-surface velocity fields from the Colorado University Princeton Ocean Model of the Gulf of Mexico were used along with drifter data in the study. A Lagrangian analysis provided detailed information about ring interaction and revealed features that were not apparent in the Eulerian picture. During the observation period, a new ring was formed in the meander of the Loop Current and a large anticyclonic ring to the west was cleaved by a cyclonic eddy. The coherent structures were identified in the Lagrangian framework by means of material curves (manifolds) that act as their boundaries. Concurrent drifter trajectories were in qualitative agreement with the results of the Lagrangian analysis.

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Document Type: Regular Paper

Publication date: 2002-05-01

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  • The Journal of Marine Research publishes peer-reviewed research articles covering a broad array of topics in physical, biological and chemical oceanography. Articles that deal with processes, as well as those that report significant observations, are welcome. In the area of biology, studies involving coupling between ecological and physical processes are preferred over those that report systematics. Authors benefit from thorough reviews of their manuscripts, where an attempt is made to maximize clarity. The time between submission and publication is kept to a minimum; there is no page charge.
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