Sensitivity of Simulated Hurricane Eyewall Replacement Cycles to Horizontal Turbulent Mixing

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dc.contributor.advisorChen, Yongsheng
dc.creatorKennell, Joanne Michelle
dc.date.accessioned2016-11-25T14:22:31Z
dc.date.available2016-11-25T14:22:31Z
dc.date.copyright2016-08-22
dc.date.issued2016-11-25
dc.date.updated2016-11-25T14:22:31Z
dc.degree.disciplineEarth & Space Science
dc.degree.levelMaster's
dc.degree.nameMSc - Master of Science
dc.description.abstractEyewall replacement cycles (ERCs) are naturally occurring phenomena in some intense tropical cyclones. The exact mechanisms of ERCs are currently not known and successful numerical simulations of ERCs are also rare. The objectives of this thesis are to 1) validate the current ERC theories for a set of numerical simulations which resolved ERC processes, 2) investigate the role of boundary layer turbulence in ERCs, and 3) propose a mechanism for ERCs. Using the Advanced Research and Weather Forecasting (WRF-ARW) model, Hurricane Danielle (2010) was simulated. The ERCs that occurred in simulated Danielle are sensitive to parameterized horizontal turbulent mixing. Five theories on the initiating mechanisms of eyewall replace cycles are discussed with respect to each of our simulations and based on the results, a new idea of how the eyewall replacement process formed in our simulations is proposed. Two sensitivity experiments are performed to test the validity of this mechanism.
dc.identifier.urihttp://hdl.handle.net/10315/32804
dc.language.isoen
dc.rightsAuthor owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.
dc.subjectAtmospheric sciences
dc.subject.keywordsHurricane
dc.subject.keywordsTropical cyclone
dc.subject.keywordsEyewall replacement cycle
dc.subject.keywordsSecondary eyewall
dc.subject.keywordsTurbulence
dc.subject.keywordsBoundary layer
dc.subject.keywordsSevere weather
dc.subject.keywordsSmagorinsky
dc.subject.keywordsHurricane Danielle
dc.subject.keywordsHorizontal turbulent mixing
dc.titleSensitivity of Simulated Hurricane Eyewall Replacement Cycles to Horizontal Turbulent Mixing
dc.typeElectronic Thesis or Dissertation

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