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dc.contributor.advisorRadko, Timour
dc.contributor.authorTubbs, William D.
dc.date.accessioned2019-02-13T22:47:31Z
dc.date.available2019-02-13T22:47:31Z
dc.date.issued2018
dc.identifier.urihttp://hdl.handle.net/10945/61291
dc.description.abstractDouble diffusive convection through Arctic staircases has been shown to play a role in the melting of Arctic sea ice. However, there have been no studies exploring the effects of shear on these staircases. We simulated these staircases numerically in the presence of vertical shear to determine its effects on the heat flux and structure of the staircases. Results from this study imply the heat flux increases 20% to 30% above cases with no shear. Simulations yielded an unexpected result that, with the addition of shear, a turbulent motion occurs inside the interfaces between staircase layers that typically are devoid of vertical motion in the absence of shear. These features are attributed to the recently discovered thermohaline-shear instability. An investigation of turbulent kinetic energy indicates that the intensity of this instability may depend on both Richardson number and density ratio. Understanding the effects of vertical shear on the staircases, and in particular on the associated heat flux, may lead to more accurate mixing parameterizations in global climate models.en_US
dc.description.urihttp://archive.org/details/effectsofvertica1094561291
dc.publisherMonterey, CA; 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. Copyright protection is not available for this work in the United States.en_US
dc.titleEFFECTS OF VERTICAL SHEAR ON ARCTIC DOUBLE DIFFUSIVE STAIRCASESen_US
dc.typeThesisen_US
dc.contributor.secondreaderBrown, Justin M.
dc.contributor.departmentOceanography
dc.subject.authordouble diffusionen_US
dc.subject.authorarctic staircasesen_US
dc.subject.authorheat fluxen_US
dc.subject.authordiffusive convectionen_US
dc.subject.authorArctic Ocean modelingen_US
dc.description.serviceLieutenant Commander, United States Navyen_US
etd.thesisdegree.nameMaster of Science in Meteorology and Physical Oceanographyen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineMeteorology and Physical Oceanographyen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US
dc.identifier.thesisid30558
dc.description.distributionstatementApproved for public release; distribution is unlimited.


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