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dc.contributor.authorZhou, Sheng-Qi
dc.contributor.authorLu, Yuan-Zheng
dc.contributor.authorSong, Xue-Long
dc.contributor.authorFer, Ilker
dc.PublishedZhou, Lu, Song, Fer I. New layer thickness parameterization of diffusive convection in the ocean. Dynamics of atmospheres and oceans (Print). 2016;73:87-97eng
dc.description.abstractIn the present study, a new parameterization is proposed to describe the convecting layer thickness in diffusive convection. By using in situ observational data of diffusive convection in the lakes and oceans, a wide range of stratification and buoyancy flux is obtained, where the buoyancy frequency N varies between 10−4 and 0.1 s−1 and the heat-related buoyancy flux qT varies between 10−12 and 10−7 m2 s−3. We construct an intrinsic thickness scale, H0=[qT3/(κTN8)]1/4, here κT is the thermal diffusivity. H0 is suggested to be the scale of an energy-containing eddy and it can be alternatively represented as H0 = ηRebPr1/4, here η is the dissipation length scale, Reb is the buoyant Reynolds number, and Pr is the Prandtl number. It is found that the convective layer thickness H is directly linked to the stability ratio Rρ and H0 with the form of H ∼ (Rρ − 1)2H0. The layer thickness can be explained by the convective instability mechanism. To each convective layer, its thickness H reaches a stable value when its thermal boundary layer develops to be a new convecting layer.en_US
dc.rightsAttribution CC BY-NC-NDeng
dc.subjectDiffusive convectioneng
dc.subjectConvecting layer thicknesseng
dc.titleNew layer thickness parameterization of diffusive convection in the oceanen_US
dc.typePeer reviewed
dc.typeJournal article
dc.rights.holderCopyright 2016 Elsevieren_US
dc.source.journalDynamics of atmospheres and oceans (Print)
dc.relation.projectNorges forskningsråd: 229786

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