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Observations of enhanced diapycnal mixing near the Hawaiian ridge
- Article from:
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Journal of Physical Oceanography
- Article date:
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November 1, 2002
- Author:
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Copyright informationCopyright American Meteorological Society Nov 2002. Provided by ProQuest LLC. (Hide copyright information)
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ABSTRACT
Profiles of potential density obtained from CTD casts at two stations at different distances from the Hawaiian ridge are examined for evidence of diapycnal turbulent mixing as indicated by density inversions and internal-- wave vertical strain. Results from independent casts are used to produce ensemble-averaged vertical distributions for the number of inversions and the Thorpe scale. Both parameters were found to be higher over the slope of the topography at 2500-m depth than in the deep ocean, 110 km to the north. Thorpe scale-based estimates of the rate of dissipation of turbulent kinetic energy and turbulent vertical diffusivity are elevated by an order of magnitude over the ...
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