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dc.contributor.authorWhitehead, John A.  Concept link
dc.contributor.authorWang, Wei  Concept link
dc.date.accessioned2010-11-02T17:54:43Z
dc.date.available2010-11-02T17:54:43Z
dc.date.issued2008-05
dc.identifier.citationJournal of Physical Oceanography 38 (2008): 1091-1106en_US
dc.identifier.urihttps://hdl.handle.net/1912/4043
dc.descriptionAuthor Posting. © American Meteorological Society, 2008. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Physical Oceanography 38 (2008): 1091-1106, doi:10.1175/2007JPO3805.1.en_US
dc.description.abstractA model of deep ocean circulation driven by turbulent mixing is produced in a long, rectangular laboratory tank. The salinity difference is substituted for the thermal difference between tropical and polar regions. Freshwater gently flows in at the top of one end, dense water enters at the same rate at the top of the other end, and an overflow in the middle removes the same amount of surface water as is pumped in. Mixing is provided by a rod extending from top to bottom of the tank and traveling back and forth at constant speed with Reynolds numbers >500. A stratified upper layer (“thermocline”) deepens from the mixing and spreads across the entire tank. Simultaneously, a turbulent plume (“deep ocean overflow”) from a dense-water source descends through the layer and supplies bottom water, which spreads over the entire tank floor and rises into the upper layer to arrest the upper-layer deepening. Data are taken over a wide range of parameters and compared to scaling theory, energetic considerations, and simple models of turbulently mixed fluid. There is approximate agreement with a simple theory for Reynolds number >1000 in experiments with a tank depth less than the thermocline depth. A simple argument shows that mixing and plume potential energy flux rates are equal in magnitude, and it is suggested that the same is approximately true for the ocean.en_US
dc.description.sponsorshipThe research was supported by the Ocean Climate Change Institute of Woods Hole Oceanographic Institution.en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherAmerican Meteorological Societyen_US
dc.relation.urihttps://doi.org/10.1175/2007JPO3805.1
dc.subjectOcean circulationen_US
dc.subjectMixingen_US
dc.subjectIn situ observationsen_US
dc.subjectVertical motionen_US
dc.titleA laboratory model of vertical ocean circulation driven by mixingen_US
dc.typeArticleen_US
dc.identifier.doi10.1175/2007JPO3805.1


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