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dc.contributor.advisorStanton, Timothy P.
dc.contributor.authorCoelho, Emanuel Ferreira
dc.dateJune, 1994
dc.date.accessioned2013-04-26T18:59:00Z
dc.date.available2013-04-26T18:59:00Z
dc.date.issued1994-06
dc.identifier.urihttp://hdl.handle.net/10945/30837
dc.description.abstractCoastal currents and water column stratification frequently are determined by local phenomena that interact to produce complex dynamics. A process study was designed to assess the role of tides over a coastal shelf break as a local source of internal waves spatially-inhomogeneous, baroclinic residual currents, and internal mixing. The temporal evolution of three dimensional stratification and currents were characterized within a 4km x 4km box close to the mouth of Monterey Canyon, California. Strong, baroclinic, unidirectional, spatially inhomogeneous jet-like currents were observed with 24 hour periods, together with the occurrence of semidiurnal thermocline oscillations and vertically mixed layers. The linear theory of Baines (1982) predicts the existence of significant tidally forced internal waves in the area, with an interfacial mode at the thermocline decoupled from the internal waves propagating in the weaker stratification below. A ray tracing method is developed to study the nonlinear propagation of these tidally forced internal waves by considering wave advection and straining by the topographically controlled barotropic tidal flow while neglecting internal wave-wave interactions. It is found that nonlinear interaction of tidally forced internal waves with the topographically controlled barotropic tidal flow is mechanism capable of forcing residual currents and internal wave shear instabilities that are capable of creating internal mixed layers similar to those observed at the mouth of Monterey Canyon.en_US
dc.description.urihttp://archive.org/details/tidaldynamicsndm1094530837
dc.language.isoen_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. Copyright protection is not available for this work in the United States.en_US
dc.titleTidal dynamics and mixing over steep topographyen_US
dc.typeThesisen_US
dc.contributor.secondreaderMiller, James H.
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentOceanography
dc.subject.authorInternal Tide, Tidal mixing, internal waves, coastal dynamics, nonlinear internal wave propagation, shelf break tidal dynamicsen_US
dc.description.serviceLieutenant Commander, Portuguese Navyen_US
etd.thesisdegree.nameDoctor of Philosophy in Physical Oceanographyen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineOceanographyen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


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