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dc.contributor.advisorGuest, Peter S.
dc.contributor.advisorHarcourt, Ramsey R.
dc.contributor.advisorMaslowski, Wieslaw
dc.contributor.advisorSemtner, Albert J.
dc.contributor.advisorGarwood, Roland W. Jr.
dc.contributor.authorStone, Rebecca E.
dc.dateJune 1999
dc.date.accessioned2014-03-12T21:01:40Z
dc.date.available2014-03-12T21:01:40Z
dc.date.issued1999-06
dc.identifier.urihttp://hdl.handle.net/10945/39421
dc.description.abstractThe theory of oceanic convection and entrainment has been developed mainly in horizontally homogeneous regimes, yet large-scale spatial variability is known to control the sites and intensity of deep convection. Wintertime Greenland Sea conditions were selected to simulate convection and quantify the interplay between local forcing and large-scale gradients. Here circulation and preconditioning produce horizontal gradients in the stratification; some of the resulting stratification conducive to the formation of thermobaric convective instabilities. A large eddy simulation (LES) model modified to include large- scale horizontal density gradients was used to study the effects of the gradients on turbulence. Horizontal turbulent kinetic energy (IKE) and scalar variances increased compared to simulations with no large-scale gradient. The additional horizontal IKE is created at scales larger than the convective plume scale. A mean horizontal circulation develops in response to the large-scale overturning. The balance between convection and overturning increases stratification in the lower region of the mixed layer, and plumes may undergo slantwise convection.en_US
dc.format.extentxvi, 123 p. ; 28 cm.en_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, may not be copyrighted.en_US
dc.titleEntrainment, detrainment, and large-scale horizontal gradients in oceanic deep convectionen_US
dc.typeThesisen_US
dc.contributor.departmentDepartment of Oceanography
dc.subject.authorCONVECTIONen_US
dc.subject.authorOCEANSen_US
dc.subject.authorGRADIENTSen_US
dc.subject.authorENTRAINMENTen_US
dc.subject.authorSIMULATIONen_US
dc.subject.authorSPATIAL DISTRIBUTIONen_US
dc.subject.authorDENSITYen_US
dc.subject.authorENVIRONMENTSen_US
dc.subject.authorMODELSen_US
dc.subject.authorTHEORYen_US
dc.subject.authorINTENSITYen_US
dc.subject.authorTURBULENCEen_US
dc.subject.authorEDDIES(FLUID MECHANICS)en_US
dc.subject.authorREGIONSen_US
dc.subject.authorVARIATIONSen_US
dc.subject.authorWINTERen_US
dc.subject.authorSCALEen_US
dc.subject.authorSTRATIFICATIONen_US
dc.subject.authorINSTABILITYen_US
dc.subject.authorHORIZONTAL ORIENTATIONen_US
dc.description.serviceUS Navy (USN) authoren_US
etd.thesisdegree.namePh.D. in Physical Oceanographyen_US
etd.thesisdegree.levelDoctoralen_US
etd.thesisdegree.disciplinePhysical Oceanographyen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


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