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The Quest for Kρ—Preliminary Results from Direct Measurements of Turbulent Fluxes in the Ocean Public Deposited

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  • Simultaneous measurements of vertical velocity fluctuations, w′, and temperature fluctuations, T′, on scales of three-dimensional turbulence yield a direct measure of the turbulent heat flux, J[subscript]q. The scales contributing most significantly to J[subscript]q are tens of centimeters or about 10 times larger than the scales contributing to the turbulent kinetic energy dissipation for the data examined. A limited sample indicates that, instantaneously, J[subscript]q is almost as frequently positive (countergradient) as negative (downgradient). In contrast, instantaneous estimates of J[subscript]q from microstructure measurements of ϵ or χ are always, by definition, downgradient.
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  • Moum, J. N., 1990: The Quest for Kρ—Preliminary Results from Direct Measurements of Turbulent Fluxes in the Ocean. J. Phys. Oceanogr., 20, 1980–1984.
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  • This work has been sponsored by NSF Grant OCE-8608256 and ONR Grant N00014-89-J-1616.
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  • description.provenance : Made available in DSpace on 2012-01-26T18:53:00Z (GMT). No. of bitstreams: 1 MoumJN.CEOAS.QuestPreliminaryResults.pdf: 386237 bytes, checksum: 187db6ffc7589f6ac90193a9e90a379c (MD5) Previous issue date: 1990-12
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