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dc.contributor.authorRichardson, Philip L.
dc.date.accessioned2006-01-25T13:54:02Z
dc.date.available2006-01-25T13:54:02Z
dc.date.issued2004-11-29
dc.identifier.urihttp://hdl.handle.net/1912/443
dc.descriptionAuthor Posting. © The Author, 2004. This is the author's version of the work. It is posted here by permission of Elsevier B. V. for personal use, not for redistribution. The definitive version was published in Deep Sea Research Part II: Topical Studies in Oceanography 52 (2005): 429-463, doi:10.1016/j.dsr2.2004.11.001.
dc.description.abstractRecent satellite-tracked surface drifter trajectories were analyzed to describe the mean currents and eddies in the Caribbean Sea. The structure of the Caribbean Current and its variability were determined from high-resolution ½ degree maps of the mean velocity and eddy kinetic energy. Looping drifter trajectories were used to identify discrete cyclones and anticyclones, and their characteristics were described and related to the structure of the mean flow. The translation rate of eddies in different areas was found to be similar to the mean velocity of the local background flow fields suggesting that the eddies were largely advected by the background flow. Ten energetic anticyclones translated westward at 13 cm/sec in the Venezuela and Colombia Basins. These anticyclones tended to lie in two bands, centered near 15ºN and 17ºN, coinciding with two jets of the Caribbean Current. The northern weaker jet contains water primarily from the North Atlantic, the southern stronger jet contains water from the tropical and South Atlantic. The anticyclones are thought to have formed in the eastern Caribbean from the anticyclonic vorticity derived from North Brazil Current rings. The ring vorticity enters the eastern Caribbean through island passages and is probably amplified by the anticyclonic shear on the northern side of the jets. Southwest of Cuba a cyclone-anticyclone pair was observed to slowly (~ 2 cm/sec) translate westward into the Yucatan Current. The cyclone was tracked for 10.5 months with four drifters, making it the longest-tracked of the Caribbean eddies.en
dc.description.sponsorshipFunding was provided by National Science Foundation grants OCE 97-29765 and OCE 01-36477.en
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dc.language.isoen_USen
dc.relation.urihttp://dx.doi.org/10.1016/j.dsr2.2004.11.001
dc.subjectSurface driftersen
dc.subjectCaribbean Currenten
dc.subjectCaribbean eddiesen
dc.subjectEddiesen
dc.subjectNorth Brazil Current ringsen
dc.subjectMeridional overturning circulationen
dc.subjectIntra-Americas Seasen
dc.subjectCaribbean Seaen
dc.subjectColombia Basinen
dc.subjectVenezuela Basinen
dc.subjectYucatan Basinen
dc.subjectAntillesen
dc.titleCaribbean Current and eddies as observed by surface driftersen
dc.typePreprinten


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