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dc.contributor.authorShapiro, Georgy
dc.contributor.authorBarton, ED
dc.contributor.authorMeschanov, SL
dc.date.accessioned2017-08-10T13:22:08Z
dc.date.available2017-08-10T13:22:08Z
dc.date.issued1997-12-15
dc.identifier.issn0148-0227
dc.identifier.urihttp://hdl.handle.net/10026.1/9738
dc.description.abstract

<jats:p>A mechanism to explain the observed trapping or release of Lagrangian drifters by eddies is proposed, based on an interaction between the eddy circulation and the background flow. Eddies strong in relation to the background have a large “trap zone” within which particles are constrained to circulate in closed paths about the center, while relatively weak eddies have a smaller trap zone. Particles outside the trap zone drift freely, while those inside rotate with the eddy. As an eddy is advected by non‐uniform shear flow, its ‘trap zone’ expands or contracts so particles previously free become trapped or trapped particles are freed. Numerical experiments with idealized eddies embedded in different flows illustrate the concept. It is shown that drifters may begin to loop, as in some previously reported observations, without any need for eddy generation. Similarly, they may cease looping, without eddy destruction. The particular case of a strong cyclonic eddy south of Gran Canaria is modeled, using the observed density field and two drifter trajectories. Predicted drifter trajectories are compared with the observations. It is shown that the trajectories of buoys launched near the edge of the eddy are sensitive to small variations in the background field.</jats:p>

dc.format.extent27887-27902
dc.languageen
dc.language.isoen
dc.publisherAmerican Geophysical Union (AGU)
dc.titleCapture and release of Lagrangian floats by eddies in shear flow
dc.typejournal-article
dc.typeJournal Article
plymouth.author-urlhttps://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000071042500009&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008
plymouth.issueC13
plymouth.volume102
plymouth.publication-statusPublished
plymouth.journalJournal of Geophysical Research: Oceans
dc.identifier.doi10.1029/97jc02386
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/PRIMaRE Publications
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences
plymouth.organisational-group/Plymouth/Research Groups
plymouth.organisational-group/Plymouth/Research Groups/Marine Institute
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dc.rights.embargoperiodNo embargo
rioxxterms.versionofrecord10.1029/97jc02386
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.typeJournal Article/Review


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