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dc.contributor.authorWaterman, Stephanie
dc.contributor.authorJayne, Steven R.
dc.date.accessioned2012-10-25T18:08:57Z
dc.date.available2012-10-25T18:08:57Z
dc.date.issued2012-03
dc.date.submitted2011-03
dc.identifier.issn0022-3670
dc.identifier.issn1520-0485
dc.identifier.urihttp://hdl.handle.net/1721.1/74254
dc.description.abstractThe generation of time-mean recirculation gyres from the nonlinear rectification of an oscillatory, spatially localized vorticity forcing is examined analytically and numerically. Insights into the rectification mechanism are presented and the influence of the variations of forcing parameters, stratification, and mean background flow are explored. This exploration shows that the efficiency of the rectification depends on the properties of the energy radiation from the forcing, which in turn depends on the waves that participate in the rectification process. The particular waves are selected by the relation of the forcing parameters to the available free Rossby wave spectrum. An enhanced response is achieved if the parameters are such to select meridionally propagating waves, and a resonant response results if the forcing selects the Rossby wave with zero zonal group velocity and maximum meridional group velocity, which is optimal for producing rectified flows. Although formulated in a weakly nonlinear wave limit, simulations in a more realistic turbulent system suggest that this understanding of the mechanism remains useful in a strongly nonlinear regime with consideration of mean flow effects and wave–mean flow interaction now needing to be taken into account. The problem presented here is idealized but has general application in the understanding of eddy–eddy and eddy–mean flow interactions as the contrasting limit to that of spatially broad (basinwide) forcing and is relevant given that many sources of oceanic eddies are localized in space.en_US
dc.description.sponsorshipMassachusetts Institute of Technology. Presidential Fellowshipen_US
dc.description.sponsorshipNational Science Foundation (U.S.) (Grant OCE-022 0161)en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (Grant OCE-0825550)en_US
dc.language.isoen_US
dc.publisherAmerican Meteorological Societyen_US
dc.relation.isversionofhttp://dx.doi.org/ 10.1175/jpo-d-11-060.1en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceAMSen_US
dc.titleEddy-Driven Recirculations from a Localized Transient Forcingen_US
dc.typeArticleen_US
dc.identifier.citationWaterman, Stephanie, and Steven R. Jayne. “Eddy-Driven Recirculations from a Localized Transient Forcing.” Journal of Physical Oceanography 42.3 (2012): 430–447. © 2012 American Meteorological Societyen_US
dc.contributor.departmentWoods Hole Oceanographic Institution
dc.contributor.mitauthorWaterman, Stephanie
dc.relation.journalJournal of Physical Oceanographyen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsWaterman, Stephanie; Jayne, Steven R.en
mit.licensePUBLISHER_POLICYen_US
mit.metadata.statusComplete


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