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The Turbulent Oscillator: A Mechanism of Low-Frequency Variability of the Wind-Driven Ocean Gyres

Berloff, Pavel; Hogg, Andrew; Dewar, William K

Description

Intrinsic low-frequency variability is studied in the idealized, quasigeostrophic, midlatitude, wind-driven ocean gyres operating at large Reynolds number. A robust decadal variability mode driven by the transient mesoscale eddies is found and analyzed. The variability is a turbulent phenomenon, which is driven by the competition between the eddy rectification process and the potential vorticity anomalies induced by changes of the intergyre transport.

dc.contributor.authorBerloff, Pavel
dc.contributor.authorHogg, Andrew
dc.contributor.authorDewar, William K
dc.date.accessioned2015-12-07T22:16:28Z
dc.identifier.issn0022-3670
dc.identifier.urihttp://hdl.handle.net/1885/18046
dc.description.abstractIntrinsic low-frequency variability is studied in the idealized, quasigeostrophic, midlatitude, wind-driven ocean gyres operating at large Reynolds number. A robust decadal variability mode driven by the transient mesoscale eddies is found and analyzed. The variability is a turbulent phenomenon, which is driven by the competition between the eddy rectification process and the potential vorticity anomalies induced by changes of the intergyre transport.
dc.publisherAmerican Meteorological Society
dc.sourceJournal of Physical Oceanography
dc.subjectKeywords: Ocean currents; Reynolds number; Turbulent flow; Vorticity; Eddy rectification process; Intergyre transport; Quasigeostrophic; Wind-driven gyres; Oceanography; decadal variation; gyre; mesoscale eddy; potential vorticity; quasi-geostrophic flow; Reynolds
dc.titleThe Turbulent Oscillator: A Mechanism of Low-Frequency Variability of the Wind-Driven Ocean Gyres
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume37
dc.date.issued2007
local.identifier.absfor040503 - Physical Oceanography
local.identifier.absfor020303 - Fluid Physics
local.identifier.ariespublicationu4278572xPUB3
local.type.statusPublished Version
local.contributor.affiliationBerloff, Pavel , Woods Hole Oceanographic Institution
local.contributor.affiliationHogg, Andrew, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationDewar, William K, Florida State University
local.description.embargo2037-12-31
local.bibliographicCitation.issue9
local.bibliographicCitation.startpage2363
local.bibliographicCitation.lastpage2386
local.identifier.doi10.1175/JPO3118.1
dc.date.updated2015-12-07T07:52:41Z
local.identifier.scopusID2-s2.0-35148881171
CollectionsANU Research Publications

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